\n| Diversity of natural woody plants and current state plants exploitation in primary forest at Cham Island <\/b>This research focused diverse characteristics of natural woody plant diversity and the current state of exploitation of forest resources at Cham island. In the study area surveyed 10 plots. We identified 43 species of natural woody plants belonging to 26 families. Type spatial distribution of plant species in the communities is form Contagious <\/i>distribution (A\/F> 0.05). Importance Value Index (IVI) can definitely be used as a measurement of the ecological importance of the woody plants species, Mallotus philippensis <\/i>(Lam.) Mull.Arg.) is the dominant species with the highest IVI value (54.958); followed by Vernicia cordata <\/i>(Thunb.) A. Shaw (33.436) and Kopsia harmandiana <\/i>Pierre ex Pit. (24.616). The number of species in each plot is variation from 8 to 24 species, with an average is 15.8 species. Simpson index (Cd) value changes from 0.074 to 0.37, Shannon species diversity index (H) ranged from 1.802 to 3.834, with an average is 2.681. The average level of biological diversity of plants communities have tended to reduce. The products harvested from wild plants resources at Cham island are medicinal plants, drink leaf, accounting for 52.17%, forest vegetables accounted for 34.78% for food.Keyword<\/i><\/b>: <\/b>Forest, Cu Lao Cham, natural woody plants, non-timber forest products, exploitation.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n \u00a0<\/b><\/p>\n 2. \u0110\u00c1NH GI\u00c1 KH\u1ea2 N\u0102NG CH\u1ecaU H\u1ea0N V\u00c0 CH\u1ecaU N\u00d3NG C\u1ee6A C\u00c1C D\u00d2NG KEO L\u00c1 LI\u1ec0M (Acacia crassicarpa<\/i>) GIAI \u0110O\u1ea0N 4 TH\u00c1NG TU\u1ed4I \u1ede V\u01af\u1edcN \u01af\u01a0M <\/b><\/p>\n \u0110\u1eb7ng Th\u00e1i D\u01b0\u01a1ng <\/b>\u0110a\u0323i ho\u0323c N\u00f4ng L\u00e2m Hu\u00ea\u0301<\/i><\/p>\n\n\n\nT\u00d3M T\u1eaeT<\/b>\u00a0<\/b>V\u00f9ng \u0111\u1ea5t c\u00e1t ven bi\u1ec3n mi\u1ec1n trung c\u00f3 di\u1ec7n t\u00edch 415,560ha l\u00e0 v\u00f9ng \u0111\u1ea5t r\u1ea5t kh\u00f3 kh\u0103n trong s\u1eed d\u1ee5ng v\u00ec \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a \u0111\u1ea5t kh\u00f4 n\u00f3ng, ngh\u00e8o x\u1ea5u v\u00e0 th\u01b0\u1eddng xuy\u00ean ch\u1ecbu t\u00e1c \u0111\u1ed9ng c\u1ee7a bi\u1ebfn \u0111\u1ed5i kh\u00ed h\u1eadu. V\u00ec v\u1eady, vi\u1ec7c nghi\u00ean c\u1ee9u \u0111\u00e1nh gi\u00e1 kh\u1ea3 n\u0103ng ch\u1ecbu n\u00f3ng, ch\u1ecbu h\u1ea1n l\u00e0m c\u01a1 s\u1edf \u0111\u1ec3 ch\u1ecdn d\u00f2ng\/lo\u00e0i c\u00e2y Keo l\u00e1 li\u1ec1m (Acacia crassicarpa<\/i>) tr\u1ed3ng tr\u00ean v\u00f9ng \u0111\u1ea5t kh\u00f4, n\u00f3ng n\u00e0y l\u00e0 r\u1ea5t c\u1ea7n thi\u1ebft. Ph\u01b0\u01a1ng ph\u00e1p x\u00e1c \u0111\u1ecbnh kh\u1ea3 n\u0103ng ch\u1ecbu n\u00f3ng theo ph\u01b0\u01a1ng ph\u00e1p c\u1ee7a Maxc\u1ed1p; X\u00e1c \u0111\u1ecbnh kh\u1ea3 n\u0103ng gi\u1eef n\u01b0\u1edbc v\u00e0 ph\u1ee5c h\u1ed3i s\u1ee9c tr\u01b0\u01a1ng c\u1ee7a l\u00e1 theo ph\u01b0\u01a1ng ph\u00e1p c\u1ee7a G.N.Eremeev; X\u00e1c \u0111\u1ecbnh c\u01b0\u1eddng \u0111\u1ed9 tho\u00e1t h\u01a1i n\u01b0\u1edbc c\u1ee7a l\u00e1 b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p c\u1ee7a Ivanop; X\u00e1c \u0111\u1ecbnh h\u1ec7 s\u1ed1 h\u00e9o c\u1ee7a c\u00e2y b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p c\u1ee7a V. A. Novikop. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u: \u1ede nhi\u1ec7t \u0111\u1ed9 40oC v\u00e0 45oC l\u00e1 kh\u00f4ng b\u1ecb t\u1ed5n th\u01b0\u01a1ng. Khi nhi\u1ec7t \u0111\u1ed9 t\u0103ng l\u00ean 50oC th\u00ec l\u00e1 b\u1eaft \u0111\u1ea7u b\u1ecb t\u1ed5n th\u01b0\u01a1ng nh\u1eb9. \u1ede 55oC l\u00e1 t\u1ed5n th\u01b0\u01a1ng nhi\u1ec1u h\u01a1n nh\u01b0ng l\u00e1 v\u1eabn s\u1ed1ng v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng ph\u1ee5c h\u1ed3i. Khi t\u0103ng nhi\u1ec7t \u0111\u1ed9 l\u00ean 60oC di\u1ec7n t\u00edch l\u00e1 xu\u1ea5t hi\u1ec7n nhi\u1ec1u v\u1ebft th\u00e2m n\u00e2u l\u00e1 t\u1ed5n th\u01b0\u01a1ng n\u1eb7ng v\u00e0 kh\u00f4ng c\u00f3 kh\u1ea3 n\u0103ng ph\u1ee5c h\u1ed3i. L\u01b0\u1ee3ng n\u01b0\u1edbc m\u1ea5t \u0111i sau 5 gi\u1edd c\u1ee7a l\u00e1 t\u1eeb 8,4% \u0111\u1ebfn 11,69% v\u00ec l\u01b0\u1ee3ng n\u01b0\u1edbc m\u1ea5t \u0111i c\u1ee7a c\u00e1c d\u00f2ng Keo l\u00e1 li\u1ec1m nh\u1ecf h\u01a1n 25% t\u1ed5ng l\u01b0\u1ee3ng n\u01b0\u1edbc c\u1ee7a l\u00e1 n\u00ean c\u00e1c d\u00f2ng keo \u0111\u1ec1u c\u00f3 kh\u1ea3 n\u0103ng ph\u1ee5c h\u1ed3i v\u00e0 kh\u00f4ng b\u1ecb h\u00e9o. H\u1ec7 s\u1ed1 h\u00e9o c\u1ee7a c\u00e1c d\u00f2ng keo dao \u0111\u1ed9ng t\u1eeb 4,04% \u0111\u1ebfn 4,64% v\u1edbi h\u1ec7 s\u1ed1 h\u00e9o nh\u1ecf h\u01a1n 6% n\u00ean c\u00e1c d\u00f2ng keo \u0111\u1ec1u c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu h\u1ea1n cao. V\u00ec v\u1eady Keo l\u00e1 li\u1ec1m l\u00e0 lo\u00e0i c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu n\u00f3ng \u0111\u1ebfn 55oC v\u00e0 l\u00e0 lo\u00e0i \u0111\u01b0\u1ee3c x\u1ebfp v\u00e0o nh\u00f3m lo\u00e0i c\u00e2y c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu h\u1ea1n t\u1ed1t.T\u1eeb kh\u00f3a: <\/i><\/b>Keo la\u0301 li\u00ea\u0300m, ch\u1ecbu n\u00f3ng, ch\u1ecbu h\u1ea1n, \u0111\u00e2\u0301t c\u00e1t ven bi\u1ec3n, giai \u0111oa\u0323n v\u01b0\u01a1\u0300n \u01b0\u01a1m <\/td>\n<\/tr>\n\n| Drought and temperature tolerant evaluation of different varieties of (Acacia crassicarpa) at the age of 4 month old in the nursery state <\/b>Coastal areas in central Vietnam, with 415,560ha, are extreme difficult for land use as they are the hot, poor and highly impacted by climate change. Thus, the evaluation of the drought and hot temperature tolerance is the basic for the selection of suitable Acacia crassicarpa <\/i>varieties for this region. We used the method of hot temperature tolerance evaluation by Maxcop; Determination of water retention and restoration capability of the leaves by G.N.Eremeev; Determining the intensity of leaf transpiration method of Ivanop; Determining the tree withered by the method of V. A. Novikop. The result showed that at the temperature of 40oC to 45oC, the leaves were not damaged. When the temperature come to 50oC, little damages in the leaves appeared. At 55oC larger area of the leaves were damaged but the leaves were still alive and have the restoration capability. When the temperature come up to 60oC, the leaves appeared more brown bruise severe leaf damages and there was no sigh of possibility of recovery. The amount of water lost after 5 hours from 8.4% to 11.69% because of water loss of Acacia leaves less than 25% in the leaves so the leaves have the ability to recover and not wilted. Wilting coefficient of the varieties ranges from 4.04% to 4.64%, less than 6% thus the varieties have high drought tolerance ability. This confirms that the acacia varieties species are resistant up to 55oC and are classified as drought resistant species and suitable for this region.Keyword<\/i><\/b>: <\/b>Acacia crassicarpa<\/i>, hot temperature tolerance, drought tolerance, Coastal areas, nursery state<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n \u00a0<\/b><\/p>\n 3. H\u00c0M L\u01af\u1ee2NG C\u00c1C CH\u1ea4T DINH D\u01af\u1ee0NG NPK T\u1ed4NG S\u1ed0 TRONG L\u00c1 V\u00c0 TRONG \u0110\u1ea4T GIEO \u01af\u01a0M V\u00c0 TR\u1ed2NG R\u1eeaNG C\u00c2Y S\u1ed2I PH\u1ea2NG (Lithocarpus fissus <\/i>(Champ.ex Benth) A.CAMUS) \u1ede C\u00c1C TU\u1ed4I KH\u00c1C NHAU <\/b><\/p>\n L\u00ea Minh C\u01b0\u1eddng1, H\u00e0 Th\u1ecb M\u1eebng2 <\/b><\/p>\n 1Trung t\u00e2m Khoa h\u1ecdc L\u00e2m nghi\u1ec7p \u0110\u00f4ng B\u1eafc b\u1ed9, 2Vi\u1ec7n Nghi\u00ean c\u1ee9u Sinh Th\u00e1i v\u00e0 M\u00f4i tr\u01b0\u1eddng r\u1eebng<\/i><\/p>\n\n\n\n| T\u00d3M T\u1eaeT<\/b><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n \u00a0<\/b>Nh\u1eb1m chu\u1ea9n \u0111o\u00e1n nhu c\u1ea7u dinh d\u01b0\u1ee1ng l\u00e0m c\u0103n c\u1ee9 cho vi\u1ec7c b\u00f3n ph\u00e2n v\u00e0 c\u00e1c bi\u1ec7n ph\u00e1p t\u00e1c \u0111\u1ed9ng \u0111\u1ec3 n\u00e2ng cao kh\u1ea3 n\u0103ng cung c\u1ea5p dinh d\u01b0\u1ee1ng cho c\u00e2y, b\u00e0i b\u00e1o n\u00e0y \u0111\u00e3 nghi\u00ean c\u1ee9u h\u00e0m l\u01b0\u1ee3ng NPK t\u1ed5ng s\u1ed1 trong l\u00e1 c\u00e2y v\u00e0 trong \u0111\u1ea5t S\u1ed3i ph\u1ea3ng \u1edf v\u01b0\u1eddn \u01b0\u01a1m v\u00e0 sau khi tr\u1ed3ng 1, 3, 5 v\u00e0 10 tu\u1ed5i. K\u1ebft qu\u1ea3 cho th\u1ea5y trong l\u00e1 v\u00e0 trong \u0111\u1ea5t c\u00e2y S\u1ed3i ph\u1ea3ng t\u1ed1t c\u00f3 t\u1ed5ng l\u01b0\u1ee3ng NPK t\u1ed5ng s\u1ed1 l\u1edbn h\u01a1n trong l\u00e1 v\u00e0 \u0111\u1ea5t c\u00e2y S\u1ed3i ph\u1ea3ng x\u1ea5u \u1edf c\u00e1c tu\u1ed5i \u0111\u00e3 nghi\u00ean c\u1ee9u nh\u1ea5t l\u00e0 h\u00e0m l\u01b0\u1ee3ng P2O5 v\u00e0 K2O t\u1ed5ng s\u1ed1. Do v\u1eady, c\u1ea7n ch\u1ecdn \u0111\u1ea5t c\u00f3 P v\u00e0 K t\u1ed5ng s\u1ed1 cao ho\u1eb7c b\u00f3n th\u00eam c\u00e1c ch\u1ea5t dinh d\u01b0\u1ee1ng \u0111\u00f3 khi tr\u1ed3ng S\u1ed3i ph\u1ea3ng \u1edf c\u1ea3 c\u00e1c tu\u1ed5i 5 ho\u1eb7c 10 sau khi tr\u1ed3ng.<\/p>\n T\u1eeb kh\u00f3a: <\/i><\/b>C\u00e2y S\u1ed3i ph\u1ea3ng, h\u00e0m l\u01b0\u1ee3ng NPK, trong l\u00e1 v\u00e0 trong \u0111\u1ea5t<\/p>\n Analyzing on Nutritions (Nitrate (N), Phosphate (P), and Kalium (K)) from leaves and soil of Lithocarpus fissus in nursery and forest plantation in difference years <\/b>Nutritional requirements are the basis for determining for fertilizer and measures of improving ability of providing nutrition from soil for planting tree species. Nutritions (Nitrate (N), Phosphate (P), and Kalium (K)) from leaves and soil of Lithocarpus fissus <\/i>in nursery and forest plantation 1, 3, 5 and 10 years were analyzed. The result showed that total NPK nutrient contents in the good trees are higher than in the bad trees, particularly content of total P2O5 and K2O nutrients. Therefore, soil types with high total Phosphate and Kalium nutriens are suitable site to plant plantation of Lithocarpus fissus or <\/i>the forest plantation 5 or 10 years in other sites need to be additionally provided fertilizer with high content of Kalium (K) and Phosphate (P) nutrients.<\/p>\n Keyword<\/i><\/b>: <\/b>Lithocarpus fissus, <\/i>NPK nutrients, leaves and soil<\/p>\n \u00a0<\/b><\/p>\n 4. \u1ea2NH H\u01af\u1edeNG C\u1ee6A B\u00d3N NHI\u1ec4M CH\u1ebe PH\u1ea8M N\u1ea4M R\u1ec4 N\u1ed8I C\u1ed8NG SINH AM (Arbuscular mycorrhiza<\/i>) T\u1edaI SINH TR\u01af\u1edeNG V\u00c0 M\u00d4I TR\u01af\u1edcNG \u0110\u1ea4T R\u1eeaNG TR\u1ed2NG KEO V\u00c0 B\u1ea0CH \u0110\u00c0N URO <\/b><\/p>\n Vu\u0303 Qu\u00fd \u0110\u00f4ng, L\u00ea Qu\u00f4\u0301c Huy<\/b><\/p>\n Vi\u00ea\u0323n Nghi\u00ean c\u01b0\u0301u Sinh tha\u0301i va\u0300 M\u00f4i tr\u01b0\u01a1\u0300ng r\u01b0\u0300ng Vi\u00ea\u0323n Khoa ho\u0323c L\u00e2m nghi\u00ea\u0323p Vi\u00ea\u0323t Nam<\/i><\/p>\n\n\n\n| \u00a0<\/b><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n T\u00d3M T\u1eaeT<\/b><\/p>\n \u00a0<\/b>V\u01a1\u0301i mu\u0323c ti\u00eau l\u00e0 nghi\u00ean c\u1ee9u ph\u00e1t tri\u1ec3n v\u00e0 \u00e1p d\u1ee5ng th\u00e0nh c\u00f4ng s\u1ea3n ph\u1ea9m ph\u00e2n b\u00f3n sinh h\u1ecdc cho th\u1ef1c ti\u1ec5n s\u1ea3n xu\u1ea5t, g\u00f3p ph\u1ea7n l\u00e0m t\u0103ng sinh tr\u01b0\u1edfng n\u0103ng su\u1ea5t r\u1eebng tr\u1ed3ng v\u00e0 \u1ed5n \u0111\u1ecbnh m\u00f4i tr\u01b0\u1eddng \u0111\u1ea5t, \u0110\u00ea\u0300 ta\u0300i: \u201cNghi\u00ean c\u01b0\u0301u sa\u0309n xu\u00e2\u0301t n\u00e2\u0301m r\u00ea\u0303 n\u00f4\u0323i c\u00f4\u0323ng sinh AM (Arbuscular Mycorrhiza) cho c\u00e2y l\u00e2m nghi\u00ea\u0323p\u201d <\/i>\u0111a\u0303 nghi\u00ean c\u01b0\u0301u ph\u00e1t tri\u1ec3n c\u00f4ng ngh\u1ec7, s\u1ea3n xu\u1ea5t v\u00e0 \u00e1p d\u1ee5ng b\u00f3n th\u01b0\u0309 nghi\u00ea\u0323m ch\u00ea\u0301 ph\u00e2\u0309m n\u00e2\u0301m r\u00ea\u0303 n\u00f4\u0323i c\u00f4\u0323ng sinh AM in vitro <\/i>cho r\u1eebng tr\u1ed3ng m\u1ed9t s\u1ed1 lo\u00e0i c\u00e2y quan tr\u1ecdng t\u1ea1i Vi\u1ec7t Nam bao g\u1ed3m Ba\u0323ch \u0111a\u0300n Uro (Eucalyptus urophylla<\/i>), Keo l\u00e1 tr\u00e0m (Acacia auriculiformis<\/i>), Keo tai t\u01b0\u01a1\u0323ng (Acacia mangium<\/i>) v\u00e0 Keo lai (A. mangium \u00d7 A. auriculiformis<\/i>) t\u1ea1i Ba V\u00ec (H\u00e0 N\u1ed9i), \u0110oan Hu\u0300ng (Ph\u00fa Th\u1ecd) v\u00e0 \u0110\u00f4ng H\u00e0 (Qu\u1ea3ng Tr\u1ecb). K\u1ebft qu\u1ea3 \u0111\u00e1nh gi\u00e1 sau 1 n\u0103m b\u00f3n nhi\u1ec5m ch\u1ebf ph\u1ea9m AM cho th\u1ea5y (i) \u0111\u1ed1i v\u1edbi b\u00f3n nhi\u1ec5m cho th\u00ed nghi\u1ec7m tr\u1ed3ng r\u1eebng t\u1ea1i Ba V\u00ec, c\u00f4ng th\u1ee9c b\u00f3n nhi\u1ec5m AM 400mg V\u01af + 250mg RT l\u00e0m t\u0103ng sinh tr\u01b0\u1edfng \u0111\u01b0\u1eddng k\u00ednh (DBH) cao nh\u1ea5t cho c\u1ea3 3 lo\u00e0i c\u00e2y nghi\u00ean c\u1ee9u, trong \u0111\u00f3 Keo tai t\u01b0\u1ee3ng t\u0103ng 23,13%, Keo l\u00e1 tr\u00e0m t\u0103ng 34,14%, v\u00e0 B\u1ea1ch \u0111\u00e0n Uro t\u0103ng 27,3% so v\u1edbi \u0111\u1ed1i ch\u1ee9ng, (ii) \u0111\u1ed1i v\u1edbi b\u00f3n th\u1eed nghi\u1ec7m cho r\u1eebng tr\u1ed3ng s\u1ea3n xu\u1ea5t Keo tai t\u01b0\u1ee3ng, Keo lai v\u00e0 B\u1ea1ch \u0111\u00e0n Uro v\u1edbi li\u1ec1u l\u01b0\u1ee3ng 400mg ch\u1ebf ph\u1ea9m AM d\u1ea1ng b\u1ed9t\/c\u00e2y, t\u1ea1i \u0110oan H\u00f9ng (Ph\u00fa Th\u1ecd) Keo tai t\u01b0\u1ee3ng t\u0103ng sinh tr\u01b0\u1edfng DBH 30,08%, v\u00e0 B\u1ea1ch \u0111\u00e0n Uro t\u0103ng DBH 29,08% so v\u1edbi \u0111\u1ed1i ch\u1ee9ng, trong khi \u0111\u00f3 t\u1ea1i \u0110\u00f4ng H\u00e0 (Qu\u1ea3ng Tr\u1ecb) Keo lai ch\u1ec9 t\u0103ng DBH 16,29% so v\u1edbi \u0111\u1ed1i ch\u1ee9ng kh\u00f4ng b\u00f3n. Sau m\u1ed9t n\u0103m b\u00f3n nhi\u1ec5m ch\u1ebf ph\u1ea9m AM, m\u00f4i tr\u01b0\u1eddng \u0111\u1ea5t c\u00f3 xu h\u01b0\u1edbng c\u1ea3i thi\u1ec7n v\u1ec1 s\u1ed1 l\u01b0\u1ee3ng vi sinh v\u1eadt \u0111\u1ea5t t\u1ed5ng s\u1ed1, \u0111\u1eb7c bi\u1ec7t s\u00f4\u0301 l\u01b0\u01a1\u0323ng ba\u0300o t\u01b0\u0309 AM trong \u0111\u00e2\u0301t t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng \u0110o\u00e0n H\u00f9ng t\u0103ng ma\u0323nh \u0111a\u0323t 492 b\u00e0o t\u1eed\/100 gam \u0111\u1ea5t, cao h\u01a1n \u0111\u1ed1i ch\u1ee9ng 112%.<\/p>\n T\u1eeb kh\u00f3a: <\/i><\/b>N\u00e2\u0301m r\u00ea\u0303, keo, <\/i>n\u00e2\u0301m r\u00ea\u0303 n\u00f4\u0323i c\u00f4\u0323ng sinh, b\u1ea1ch \u0111\u00e0n<\/p>\n The impacts of applying biomass production AM in vitro (Arbuscular mycorrhiza) to the growth and soil quality in eucalyptus and acacia forestation <\/b>With the target is to study the development and successful application of bio-fertilizer products for production reality, contribute to growth forest productivity and environmental regulation of land, project: \u201cResearch and produce endomycorrhizal fungi (Arbuscular Mycorrhiza<\/i>) for forestry plant\u201d has the technology developing research, production and application of fertilizer trials inoculants AM for some importance forestry species which current widespread to planted like Eucalyptus urophylla, Acacia auriculiformis <\/i>and Acacia mangium , Acacia hybird (Acacia auriculiformis <\/i>\uf0b4 Acacia mangium) <\/i>at Ba Vi (Ha Noi), Doan Hung (Phu Tho), Dong Ha (Quang Tri).<\/p>\n Assessment results after 1 year of inoculum biomass AM in vitro <\/i>show: (i) to apply for experimental forest planting at Ba Vi, apply formulations AM<\/p>\n inoculum 400mg in nursery + 250mg in forest increase diameter born high (DBH) for all three species studied, which Acacia mangium <\/i>increase 23.13%, Acacia auriculiformis <\/i>rise 34.14% and Eucalyptus urophilla <\/i>go up 27.3% compared to control, (ii) to apply test experimental forest plantations producing Acacia mangium, Acacia auriculiformis <\/i>and Eucalyptus Uro <\/i>dose of 400mg of the AM powder\/tree at Doan Hung (Phu Tho), Acacia mangium <\/i>DBH growth increase 30.08%, and Eucalyptus urophilla <\/i>climb DBH 29.08% compared to control, whereas at Dong Ha (Quang Tri) Acacia increase DBH only 16.29% compared to control no inoculum. After a year of inoculum biomass AM in vitro<\/i>, soil environment trend of improve on the number of total soil microorganisms, special the number of AM spores in soil at the site Doan Hung increase reached 492 spores \/100g soil, 112% higher than the control.<\/p>\n Keyword<\/i><\/b>: <\/b>Arbuscular mycorrhiza<\/i>, Acacia, <\/i>AM in vitro<\/i>, biomass production AM in vitro<\/i>, Eucalyptus<\/i><\/p>\n \u00a0<\/b><\/p>\n 5. NGHI\u00caN C\u1ee8U \u1ea2NH H\u01af\u1edeNG C\u1ee6A \u0110\u1ea4T V\u00c0 PH\u00c2N B\u00d3N \u0110\u1ebeN CH\u1ea4T L\u01af\u1ee2NG C\u00c2Y S\u01afA TRONG GIAI \u0110O\u1ea0N V\u01af\u1edcN \u01af\u01a0M <\/b><\/p>\n Nguy\u00ea\u0303n Minh Ch\u00ed1, \u0110o\u00e0n H\u1ed3ng Ng\u00e2n1, Nguy\u00ea\u0303n V\u0103n Th\u00e0nh1 v\u00e0 N\u00f4ng Ph\u01b0\u01a1ng Nhung2<\/b><\/p>\n 1 Trung t\u00e2m Nghi\u00ean c\u1ee9u B\u1ea3o v\u1ec7 r\u1eebng 2 Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam<\/i><\/p>\n\n\n\n| T\u00d3M T\u1eaeT <\/b><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n Th\u00ed nghi\u1ec7m \u1ea3nh h\u01b0\u1edfng c\u1ee7a \u0111\u1ea5t v\u00e0 ph\u00e2n b\u00f3n \u0111\u1ebfn c\u00e2y S\u01b0a trong giai \u0111o\u1ea1n v\u01b0\u1eddn \u01b0\u01a1m v\u1edbi 15 c\u00f4ng th\u1ee9c, bao g\u1ed3m 5 c\u00f4ng th\u1ee9c \u0111\u1ea5t (\u0111\u1ea5t \u0111\u1ed3i, \u0111\u1ea5t m\u00e0u, \u0111\u1ea5t ph\u00f9 sa, \u0111\u1ea5t \u0111\u1ed3i + \u0111\u1ea5t m\u00e0u v\u00e0 \u0111\u1ea5t \u0111\u1ed3i + \u0111\u1ea5t ph\u00f9 sa) k\u1ebft h\u1ee3p v\u1edbi 3 c\u00f4ng th\u1ee9c ph\u00e2n b\u00f3n (2g ch\u1ebf ph\u1ea9m vi sinh MF1\/c\u00e2y, 8g ph\u00e2n h\u1eefu c\u01a1 vi sinh S\u00f4ng Gianh\/c\u00e2y v\u00e0 \u0111\u1ed1i ch\u1ee9ng kh\u00f4ng b\u00f3n). Sau 30 ng\u00e0y tu\u1ed5i, sinh tr\u01b0\u1edfng c\u1ee7a c\u00e2y \u1edf c\u00f4ng th\u1ee9c b\u00f3n MF1 v\u01b0\u1ee3t 32,1% v\u1ec1 chi\u1ec1u cao v\u00e0 14,3% v\u1ec1 \u0111\u01b0\u1eddng k\u00ednh c\u1ed5 r\u1ec5 so v\u1edbi \u0111\u1ed1i ch\u1ee9ng; T\u1ef7 l\u1ec7 b\u1ecb b\u1ec7nh th\u1ed1i c\u1ed5 r\u1ec5 \u1edf c\u00f4ng th\u1ee9c b\u00f3n MF1 gi\u1ea3m t\u01b0\u01a1ng \u1ee9ng l\u00e0 69,6% v\u00e0 79,5% so v\u1edbi b\u00f3n ph\u00e2n S\u00f4ng Gianh v\u00e0 \u0111\u1ed1i ch\u1ee9ng. Sau 90 ng\u00e0y tu\u1ed5i, c\u00e2y con \u1edf c\u00f4ng th\u1ee9c b\u00f3n MF1 c\u00f3 chi\u1ec1u cao trung b\u00ecnh \u0111\u1ea1t 34,29cm, v\u01b0\u1ee3t so v\u1edbi b\u00f3n ph\u00e2n S\u00f4ng Gianh v\u00e0 \u0111\u1ed1i ch\u1ee9ng l\u1ea7n l\u01b0\u1ee3t l\u00e0 9,9% v\u00e0 17,6%; \u0110\u01b0\u1eddng k\u00ednh c\u1ed5 r\u1ec5 trung b\u00ecnh \u0111\u1ea1t 5,05mm, v\u01b0\u1ee3t t\u01b0\u01a1ng \u1ee9ng l\u00e0 3,9% v\u00e0 5,4% so v\u1edbi b\u00f3n ph\u00e2n h\u1eefu c\u01a1 vi sinh S\u00f4ng Gianh v\u00e0 \u0111\u1ed1i ch\u1ee9ng; T\u1ef7 l\u1ec7 b\u1ecb b\u1ec7nh \u0111\u1ed1m l\u00e1 trung b\u00ecnh \u1edf c\u00e1c c\u00f4ng th\u1ee9c b\u00f3n MF1 gi\u1ea3m t\u1eeb 95,2 – 96,3% so v\u1edbi b\u00f3n ph\u00e2n h\u1eefu c\u01a1 vi sinh S\u00f4ng Gianh v\u00e0 \u0111\u1ed1i ch\u1ee9ng. Sinh tr\u01b0\u1edfng chi\u1ec1u cao trung b\u00ecnh c\u1ee7a c\u00e2y \u1edf hai lo\u1ea1i h\u1ed7n h\u1ee3p \u0111\u1ea5t \u0111\u1ed3i + \u0111\u1ea5t ph\u00f9 sa (1:1) v\u00e0 \u0111\u1ea5t \u0111\u1ed3i + \u0111\u1ea5t m\u00e0u (1:1) v\u01b0\u1ee3t so v\u1edbi c\u00e1c c\u00f4ng th\u1ee9c ch\u1ec9 s\u1eed d\u1ee5ng \u0111\u1ea5t ph\u00f9 sa, \u0111\u1ea5t m\u00e0u v\u00e0 \u0111\u1ea5t \u0111\u1ed3i l\u1ea7n l\u01b0\u1ee3t l\u00e0 18,6%, 21,7% v\u00e0 30,9%. C\u00f4ng th\u1ee9c \u0111\u1ea5t + ph\u00e2n b\u00f3n t\u1ed1t nh\u1ea5t l\u00e0 \u0110-PB10 (\u0111\u1ea5t \u0111\u1ed3i + \u0111\u1ea5t ph\u00f9 sa, b\u00f3n 2g MF1\/c\u00e2y), \u0110-PB11 (\u0111\u1ea5t \u0111\u1ed3i + \u0111\u1ea5t ph\u00f9 sa, b\u00f3n 8g ph\u00e2n h\u1eefu c\u01a1 vi sinh S\u00f4ng Gianh\/c\u00e2y) v\u00e0 \u0110-PB13 (\u0111\u1ea5t \u0111\u1ed3i + \u0111\u1ea5t m\u00e0u, b\u00f3n 2g MF1\/c\u00e2y). Sinh tr\u01b0\u1edfng trung b\u00ecnh c\u1ee7a c\u00e2y \u1edf ba c\u00f4ng th\u1ee9c t\u1ed1t nh\u1ea5t v\u01b0\u1ee3t so v\u1edbi trung b\u00ecnh chung v\u00e0 trung b\u00ecnh \u0111\u1ed1i ch\u1ee9ng l\u1ea7n l\u01b0\u1ee3t l\u00e0 18,6%, 31,9% v\u1ec1 chi\u1ec1u cao v\u00e0 v\u01b0\u1ee3t 8,0%, 11,6% v\u1ec1 \u0111\u01b0\u1eddng k\u00ednh c\u1ed5 r\u1ec5.<\/p>\n T\u1eeb kh\u00f3a: <\/i><\/b>Dalbergia tonkinensis <\/i>Prain, S\u01b0a, \u0111\u1ea5t, ph\u00e2n b\u00f3n, b\u1ec7nh h\u1ea1i\u00a0<\/b><\/p>\n Study on effects of soil and fertilizer to the quality of Dalbergia tonkinensis Prain in nursery period <\/b><\/p>\n The experiment of soil and fertilizer to Dalbergia tonkinensis <\/i>Prain in nursery have 15 formulas in which included 5 formulas of soil (hilly soil, fertile soil, alluvial soil, hilly soil + fertile soil and hilly soil + alluvial soil) combined with 3 formulas of fertilizer (2 grams inoculum MF1, 8 grams Song Gianh microbial organic fertilizer per seedling and the control formula without fertilizer). 30 days after sowing, the growth of plant on formulas which use inoculum MF1 exceeded 32.1% in height and 14.3% in root diameter compared to the control; the ratio of root rot disease decreased 69.6% and 79.5% compared to Song Gianh fertilizer and the control formulas, respectively. 90 days after sowing, average height of seedlings in MF1 formulas reached to 34.29cm, higher than seedlings in Song Gianh fertilizer and the control formula about 9.9% and 17.6%, respectively; average root diameter reached to 5.05mm and that exceeded 3.9% and 5.4% compare to Song Gianh fertilizer and control formula, respectively. Moreover, the damage severity level of leaf spot disease on inoculum MF1 formulas also decreased from 95.2 to 96.3% compared with Song Gianh \u00a0and the control formulas, respectively. The average height of seedlings in two mixed soil formulas: hilly soil + fertile soil (1:1) and hilly soil + alluvial soil (1:1) exceeded 18.6%, 21.7% and 30.9% compared to alluvial soil, fertile soil, hilly soil formulas, respectively. Three formulas: soil + fertilizer were D-PB10 (hilly soil + alluvial soil, applied 2 grams MF1\/seedling), D-PB11 (hilly soil + alluvial soil, used 8 grams Song Gianh fertilizer\/seedling), and D-PB13 (hilly soil + alluvial soil, fertilized 2 grams MF1\/seedling) were the best for Dalbergia tonkinensis <\/i>Prain seedlings in nursery period. The average growth of seedlings in these formulas exceeded 18.6% and 31.9% in height; 8.0% and 11.6% in root diameter compared to the overall average and the control formula, respectively.<\/p>\n Keyword: <\/i><\/b>Dalbergia tonkinensis <\/i>Prain, <\/i>disease fertilizer, disease, soil<\/p>\n \u00a0<\/b><\/p>\n 6. L\u1ef0A CH\u1eccN L\u1eacP \u0110\u1ecaA CHO TR\u1ed2NG R\u1eeaNG G\u1ed6 L\u1edaN NH\u1eb0M \u0110\u1ea0T GI\u00c1 TR\u1eca V\u00c0 HI\u1ec6U QU\u1ea2 CAO V\u1ec0 KINH T\u1ebe, X\u00c3 H\u1ed8I V\u00c0 M\u00d4I TR\u01af\u1edcNG <\/b><\/p>\n Ng\u00f4 \u0110i\u0300nh Qu\u1ebf1, L\u00ea \u0110\u1ee9c Th\u1eafng2<\/b><\/p>\n 1 H\u1ed9i Khoa h\u1ecdc K\u1ef9 thu\u1eadt L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam, 2 Vi\u1ec7n Nghi\u00ean c\u1ee9u v\u00e0 Ph\u00e1t tri\u1ec3n V\u00f9ng – B\u1ed9 Khoa h\u1ecdc v\u00e0 C\u00f4ng ngh\u1ec7<\/i><\/p>\n <\/p>\n \n\n\n| T\u00d3M T\u1eaeT<\/b><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n \u00a0<\/b>L\u1ef1a ch\u1ecdn l\u1eadp \u0111\u1ecba l\u00e0 m\u1ed9t b\u01b0\u1edbc quan tr\u1ecdng h\u01b0\u1edbng t\u1edbi \u0111\u1ea3m b\u1ea3o r\u1eb1ng tr\u1ed3ng r\u1eebng g\u1ed7 l\u1edbn c\u00f3 kh\u1ea3 n\u0103ng \u0111\u1ea1t gi\u00e1 tr\u1ecb v\u00e0 hi\u1ec7u qu\u1ea3 cao v\u1ec1 kinh t\u1ebf, x\u00e3 h\u1ed9i v\u00e0 m\u00f4i tr\u01b0\u1eddng. C\u00e1c y\u1ebfu t\u1ed1 c\u1ea5u th\u00e0nh l\u1eadp \u0111\u1ecba g\u1ed3m: (i) Th\u00e0nh ph\u1ea7n kh\u00ed h\u1eadu; (ii) Th\u00e0nh ph\u1ea7n \u0111\u1ecba h\u00ecnh; (iii) Th\u00e0nh ph\u1ea7n th\u1ed5 nh\u01b0\u1ee1ng; (iv) Th\u00e0nh ph\u1ea7n th\u1ef1c v\u1eadt; v\u00e0 (v) Ho\u1ea1t \u0111\u1ed9ng s\u1ea3n xu\u1ea5t c\u1ee7a con ng\u01b0\u1eddi. Trong c\u00e1c y\u1ebfu t\u1ed1 \u0111i\u1ec1u tra th\u00ec c\u00e1c y\u1ebfu t\u1ed1 lo\u1ea1i \u0111\u1ea5t, \u0111\u1ed9 d\u00e0y t\u1ea7ng \u0111\u1ea5t, \u0111\u1ed9 d\u1ed1c, h\u00e0m l\u01b0\u1ee3ng OM t\u1ed5ng s\u1ed1, th\u1ef1c b\u00ec ch\u1ec9 th\u1ecb r\u1ea5t ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u c\u1ee7a lo\u1ea1i c\u00e2y tr\u1ed3ng r\u1eebng g\u1ed7 l\u1edbn, \u0111\u1ea3m b\u1ea3o cho r\u1eebng tr\u1ed3ng g\u1ed7 l\u1edbn sinh tr\u01b0\u1edfng t\u1ed1t, n\u0103ng su\u1ea5t cao. R\u1eebng tr\u1ed3ng g\u1ed7 l\u1edbn c\u00f3 kh\u1ea3 n\u0103ng ti\u00eau th\u1ee5 c\u1ea3 trong n\u01b0\u1edbc v\u00e0 xu\u1ea5t kh\u1ea9u; c\u00f3 hi\u1ec7u qu\u1ea3 kinh t\u1ebf cao, g\u00f3p ph\u1ea7n n\u00e2ng cao m\u1ee9c s\u1ed1ng c\u1ee7a ng\u01b0\u1eddi tr\u1ed3ng r\u1eebng, th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng, v.v… g\u00f3p ph\u1ea7n t\u00e1i c\u01a1 c\u1ea5u ng\u00e0nh l\u00e2m nghi\u1ec7p.<\/p>\n T\u1eeb kh\u00f3a: <\/i><\/b>L\u1eadp \u0111\u1ecba, r\u1eebng g\u1ed7 l\u1edbn<\/p>\n Site selection for the development of commercial woody species to increase economic, social and environmental values and effects <\/b>Site selection is one of the most important steps to ensure that woody species planting activities show the high potential in terms of economy, society, and environment. Elements that constitute the sites include: (i) Climate; (ii) Topography; (iii) Soil; (iv) Vegetation; and human activities. Surveyed factors, which are beyond these elements, including soil types, soil depth, slope, general OM content, and representative vegetation significantly meet the requirements of woody species, and ensure the high growth and production of the woody species plantations. Products of the plantations can be sold domestically and internationally. In addition, planting woody species may contribute to highly economical values, higher living standards to local farmers, and sustainable environment …, which<\/p>\n can supports The Forestry Sector Restructuring Program of the government.<\/p>\n Keyword<\/i>: S<\/b>ite, woody species planting<\/p>\n <\/p>\n \u00a0<\/b><\/p>\n 7. \u0110\u00c1NH GI\u00c1 S\u1ef0 THAM GIA C\u1ee6A C\u00c1C B\u00caN LI\u00caN QUAN TRONG QU\u1ea2N L\u00dd R\u1eeaNG \u0110\u1eb6C D\u1ee4NG V\u00d9NG T\u00c2Y B\u1eaeC <\/b><\/p>\n Vu\u0303 Th\u1ecb B\u00edch Thu\u1eadn <\/b>Tr\u01b0\u1eddng C\u00e1n b\u1ed9 Qu\u1ea3n l\u00fd N\u00f4ng nghi\u1ec7p v\u00e0 PTNT 1<\/i><\/p>\n <\/p>\n \n\n\n| T\u00d3M T\u1eaeT <\/b><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n Trong giai \u0111o\u1ea1n hi\u1ec7n nay, vi\u1ec7c qu\u1ea3n l\u00fd t\u00e0i nguy\u00ean r\u1eebng \u0111\u1eb7c d\u1ee5ng (R\u0110D) \u1edf c\u00e1c V\u01b0\u1eddn Qu\u1ed1c gia hay c\u00e1c Khu b\u1ea3o t\u1ed3n (VQG\/KBT) \u0111\u00e3 c\u00f3 nh\u1eefng thay \u0111\u1ed5i theo h\u01b0\u1edbng t\u00edch c\u1ef1c. Quan \u0111i\u1ec3m v\u1ec1 qu\u1ea3n l\u00fd c\u00e1c khu R\u0110D \u0111\u00e3 chuy\u1ec3n t\u1eeb \u201cb\u1ea3o t\u1ed3n nghi\u00eam ng\u1eb7t\u201d sang \u201cb\u1ea3o t\u1ed3n v\u00e0 ph\u00e1t tri\u1ec3n\u201d v\u00e0 \u201cb\u1ea3o t\u1ed3n \u0111a m\u1ee5c ti\u00eau\u201d. Tr\u00e1ch nhi\u1ec7m qu\u1ea3n l\u00fd kh\u00f4ng ch\u1ec9 gi\u1edbi h\u1ea1n \u1edf Ban qu\u1ea3n l\u00fd VQG\/KBT m\u00e0 t\u1eebng b\u01b0\u1edbc \u0111\u01b0\u1ee3c x\u00e3 h\u1ed9i h\u00f3a v\u00e0 thu h\u00fat nhi\u1ec1u b\u00ean li\u00ean quan c\u00f9ng tham gia. Vai tr\u00f2 c\u1ee7a ch\u00ednh quy\u1ec1n \u0111\u1ecba ph\u01b0\u01a1ng, c\u1ed9ng \u0111\u1ed3ng d\u00e2n c\u01b0 \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n r\u00f5 b\u00ean c\u1ea1nh vai tr\u00f2 ch\u00ednh c\u1ee7a Ban qu\u1ea3n l\u00fd VQG\/KBT. Ngo\u00e0i ra ki\u1ec3m l\u00e2m huy\u1ec7n, c\u00f4ng an hay b\u1ed9 \u0111\u1ed9i, bi\u00ean ph\u00f2ng \u0111\u00f3ng tr\u00ean \u0111\u1ecba b\u00e0n c\u00f3 vai tr\u00f2 h\u1ed7 tr\u1ee3 r\u1ea5t l\u1edbn trong c\u00f4ng t\u00e1c b\u1ea3o v\u1ec7 R\u0110D. \u0110\u00e2y l\u00e0 m\u1ed9t s\u1ef1 \u0111\u1ed5i m\u1edbi v\u00e0 thay \u0111\u1ed5i theo xu h\u01b0\u1edbng t\u1ea5t y\u1ebfu trong ti\u1ebfn tr\u00ecnh b\u1ea3o t\u1ed3n b\u1ec1n v\u1eefng g\u1eafn li\u1ec1n v\u1edbi ph\u00e1t tri\u1ec3n, g\u1eafn b\u1ea3o v\u1ec7 t\u00e0i nguy\u00ean R\u0110D v\u1edbi ph\u00e1t tri\u1ec3n \u0111\u1eddi s\u1ed1ng cho c\u1ed9ng \u0111\u1ed3ng d\u00e2n c\u01b0 \u0111\u1ecba ph\u01b0\u01a1ng, g\u1eafn s\u1ef1 tham gia v\u00e0 l\u1ee3i \u00edch c\u1ee7a c\u1ed9ng \u0111\u1ed3ng v\u1edbi ph\u00e1t tri\u1ec3n th\u1ec3 ch\u1ebf v\u00e0 c\u00e1c c\u01a1 ch\u1ebf ch\u00ednh s\u00e1ch qu\u1ea3n l\u00fd th\u00edch h\u1ee3p.<\/p>\n \u00a0<\/i><\/p>\n T\u1eeb kh\u00f3a: <\/i><\/b>C\u00e1c b\u00ean li\u00ean quan, r\u1eebng \u0111\u1eb7c d\u1ee5ng, qu\u1ea3n l\u00fd r\u1eebng, s\u1ef1 tham gia, v\u00f9ng T\u00e2y B\u1eafc<\/p>\n Assessment of stakeholders of special use forest management in Northwest Region <\/b>In the current period, the management of special use forest resources in national parks or protected areas has changed in a positive direction. The idea of managing the SUF has moved from “strict conservation” to “conservation and development” and “conservation objectives”. Management responsibilities are not limited to the Management Board or the National Park conservation area which gradually socialized and attracted many stakeholders involved. The role of local government, local communities can be seen beside the main role of the Management Board of the National Park or reserve. Also ranger district, police or army, border closed in areas with large supporting role in the protection of special-use forests. This is an innovation and change with the inevitable trend of sustainable conservation processes associated with the development, protection of natural resources associated SUF to develop life for local communities, linking the participation and benefit of the community to develop institutional mechanisms and appropriate management policies.<\/p>\n Keyword<\/i><\/b>: <\/b>Stakeholders, special use forests, forest management, participation, Northwest<\/p>\n \u00a0<\/b><\/p>\n 8. NGHI\u00caN C\u1ee8U GI\u00c1 TR\u1eca KINH T\u1ebe D\u1ecaCH V\u1ee4 M\u00d4I TR\u01af\u1edcNG R\u1eeaNG KHU B\u1ea2O T\u1ed2N \u0110\u1ea4T NG\u1eacP N\u01af\u1edaC L\u00c1NG SEN, T\u1ec8NH LONG AN <\/b><\/p>\n Ng\u00f4 V\u0103n Ng\u1ecdc1, Tr\u1ea7n Thanh Cao1, Hu\u1ef3nh V\u0103n L\u00e2m2<\/b><\/p>\n 1Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Nam b\u1ed9 2 BQL Khu b\u1ea3o t\u1ed3n \u0110\u1ea5t ng\u1eadp n\u01b0\u1edbc L\u00e1ng Sen<\/i><\/p>\n <\/p>\n \n\n\n| T\u00d3M T\u1eaeT<\/b><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n \u00a0<\/b>Nghi\u00ean c\u1ee9u “Gi\u00e1 tr\u1ecb kinh t\u1ebf d\u1ecbch v\u1ee5 m\u00f4i tr\u01b0\u1eddng r\u1eebng Khu b\u1ea3o t\u1ed3n \u0110\u1ea5t ng\u1eadp n\u01b0\u1edbc L\u00e1ng Sen, t\u1ec9nh Long An\u201d \u0111\u00e3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n trong th\u1eddi gian t\u1eeb th\u00e1ng 02 \u0111\u1ebfn th\u00e1ng 06 n\u0103m 2011. M\u1ee5c ti\u00eau nghi\u00ean c\u1ee9u nh\u1eb1m l\u01b0\u1ee3ng h\u00f3a m\u1ed9t s\u1ed1 gi\u00e1 tr\u1ecb d\u1ecbch v\u1ee5 m\u00f4i tr\u01b0\u1eddng r\u1eebng c\u1ee7a Khu b\u1ea3o t\u1ed3n \u0111\u1ea5t ng\u1eadp n\u01b0\u1edbc L\u00e1ng Sen. C\u00e1c ph\u01b0\u01a1ng ph\u00e1p s\u1eed d\u1ee5ng trong nghi\u00ean c\u1ee9u n\u00e0y g\u1ed3m: ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec1u tra ph\u1ecfng v\u1ea5n, ph\u01b0\u01a1ng ph\u00e1p chi ph\u00ed du h\u00e0nh c\u00e1 nh\u00e2n (Individual Travel Cost Method<\/i>) v\u00e0 ph\u01b0\u01a1ng ph\u00e1p \u0111\u00e1nh gi\u00e1 ng\u1eabu nhi\u00ean (Contingent Value Method<\/i>). K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u cho th\u1ea5y gi\u00e1 tr\u1ecb l\u01b0u gi\u1eef, h\u1ea5p th\u1ee5 c\u00e1c bon tr\u00ean m\u1eb7t \u0111\u1ea5t h\u00e0ng n\u0103m c\u1ee7a khu r\u1eebng tr\u00e0m n\u00e0y l\u00e0 1.256.221.559 \u0111\u1ed3ng; gi\u00e1 tr\u1ecb c\u1ea3nh quan gi\u1ea3i tr\u00ed \u01b0\u1edbc t\u00ednh l\u00e0 478.285.000 \u0111\u1ed3ng v\u00e0 gi\u00e1 tr\u1ecb t\u1ed3n t\u1ea1i l\u00e0 109.956.000 \u0111\u1ed3ng. T\u1ed5ng c\u00e1c gi\u00e1 tr\u1ecb kinh t\u1ebf d\u1ecbch v\u1ee5 m\u00f4i tr\u01b0\u1eddng h\u00e0ng n\u0103m c\u1ee7a h\u1ec7 sinh th\u00e1i Khu b\u1ea3o t\u1ed3n \u0110\u1ea5t ng\u1eadp n\u01b0\u1edbc L\u00e1ng Sen \u01b0\u1edbc t\u00ednh l\u00e0 1.844.462.559 \u0111\u1ed3ng.<\/p>\n T\u1eeb kh\u00f3a: <\/i><\/b>Gi\u00e1 tr\u1ecb kinh t\u1ebf, m\u00f4i tr\u01b0\u1eddng r\u1eebng, khu b\u1ea3o t\u1ed3n L\u00e1ng Sen<\/p>\n Economic value of environmental services of the forest in Lang Sen wetland Reserve, Long An province <\/b>The study “The economic value of forest environmental services in Lang Sen wetland Reserve, Long An Province” was performed during the period from February to June 2011. The methods used in this study include: method of interviews investigation; Individual Travel Cost Method (ITCM) and Contingent Value Method (CVM). The results of this study indicated that, the value of carbon storage above-ground for melaleuca forests was 1.256.221.559 VND per year. The value of landscape was 478,285,000 VND per year and the existence value was 109,956,000 VND per year. The economic values of environmental services of the forest in the Lang Sen wetland Reserve was estimated about 1.844.462.559 VND per year.<\/p>\n Keyword: <\/i><\/b>Economic value, environmental forest, Lang Sen conservation<\/p>\n <\/p>\n \u00a0<\/b><\/p>\n 9. NGHI\u00caN C\u1ee8U S\u1ea2N XU\u1ea4T V\u00c1N D\u0102M S\u1eec D\u1ee4NG NGUY\u00caN LI\u1ec6U G\u1ed6 C\u00c2Y H\u00d4NG V\u00c0 KEO PMDI <\/b><\/p>\n Ph\u1ea1m V\u0103n Ti\u1ebfn, Nguy\u00ea\u0303n H\u1ed3ng Minh, \u0110\u1eb7ng \u0110\u1ee9c Vi\u1ec7t<\/b><\/p>\n Vi\u1ec7n Nghi\u00ean c\u1ee9u C\u00f4ng nghi\u1ec7p r\u1eebng – Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam<\/i><\/p>\n <\/p>\n \n\n\n| T\u00d3M T\u1eaeT <\/b><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n C\u00f4ng nghi\u1ec7p s\u1ea3n xu\u1ea5t v\u00e1n d\u0103m \u0111\u00e3 v\u00e0 \u0111ang ph\u00e1t tri\u1ec3n kh\u00f4ng ng\u1eebng trong nh\u1eefng th\u1eadp k\u1ef7 qua. S\u1ea3n ph\u1ea9m v\u00e1n d\u0103m c\u00f4ng nghi\u1ec7p \u0111ang l\u00e0 nguy\u00ean li\u1ec7u thay th\u1ebf g\u1ed7 x\u1ebb trong s\u1ea3n xu\u1ea5t \u0111\u1ed3 n\u1ed9i th\u1ea5t v\u00e0 x\u00e2y d\u1ef1ng. Hi\u1ec7n nay, tr\u00ean th\u1ebf gi\u1edbi \u0111ang c\u00f3 xu h\u01b0\u1edbng m\u1edbi trong ng\u00e0nh c\u00f4ng nghi\u1ec7p s\u1ea3n xu\u1ea5t v\u00e1n d\u0103m nh\u1eb1m s\u1eed d\u1ee5ng nguy\u00ean li\u1ec7u t\u1eeb nh\u1eefng nguy\u00ean v\u1eadt li\u1ec7u nh\u1eb9 nh\u01b0ng v\u1eabn gi\u1eef \u0111\u01b0\u1ee3c \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 th\u1ea9m m\u1ef9 c\u1ee7a v\u00e1n. Lo\u00e0i c\u00e2y g\u1ed7 h\u00f4ng (Paulownia tomentosa<\/i>) \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi t\u1ed1c \u0111\u1ed9 sinh tr\u01b0\u1edfng nhanh v\u00e0 kh\u1ed1i l\u01b0\u1ee3ng th\u1ec3 t\u00edch th\u1ea5p kho\u1ea3ng 350 kg\/m3 c\u00f3 th\u1ec3 tr\u1edf th\u00e0nh nguy\u00ean li\u1ec7u ti\u1ec1m n\u0103ng cho c\u00f4ng nghi\u1ec7p s\u1ea3n xu\u1ea5t v\u00e1n d\u0103m. Trong nghi\u00ean c\u1ee9u n\u00e0y, v\u00e1n d\u0103m \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t t\u1eeb d\u0103m c\u00e2y g\u1ed7 h\u00f4ng \u0111\u01b0\u1ee3c tr\u1ed3ng t\u1ea1i ph\u00eda T\u00e2y n\u01b0\u1edbc \u0110\u1ee9c v\u00e0 d\u0103m g\u1ed7 c\u00f4ng nghi\u1ec7p s\u1eed d\u1ee5ng keo g\u1ed1c isocinate. D\u0103m g\u1ed7 h\u00f4ng \u0111\u01b0\u1ee3c tr\u1ed9n theo t\u1ef7 l\u1ec7 100%, 66%, 33%, 0% c\u00f9ng v\u1edbi v\u1edbi d\u0103m g\u1ed7 c\u00f4ng nghi\u1ec7p nh\u1eb1m \u0111\u00e1nh gi\u00e1 kh\u1ea3 n\u0103ng \u1ea3nh h\u01b0\u1edfng d\u0103m g\u1ed7 c\u00e2y h\u00f4ng t\u1edbi t\u00ednh ch\u1ea5t c\u01a1 l\u00fd c\u1ee7a v\u00e1n. V\u00e1n d\u0103m \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t t\u1ea1i ph\u00f2ng th\u00ed nghi\u1ec7m tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc Goettingen, CHLB \u0110\u1ee9c v\u1edbi c\u1ea5p kh\u1ed1i l\u01b0\u1ee3ng th\u1ec3 t\u00edch l\u00e0 350 kg\/m3 500 kg\/m3 650 kg\/m3. Nghi\u00ean c\u1ee9u s\u1ebd s\u1eed d\u1ee5ng ti\u00eau chu\u1ea9n EN 310, EN 317, EN 319 c\u1ee7a Ch\u00e2u \u00c2u \u00e1p d\u1ee5ng cho v\u00e1n nh\u00e2n t\u1ea1o \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh t\u00ednh ch\u1ea5t c\u01a1 l\u00fd c\u1ee7a v\u00e1n nh\u01b0 modul bi\u1ebfn d\u1ea1ng, modul \u0111\u00e0n h\u1ed3i, \u0111\u1ed9 b\u1ec1n d\u00e1n d\u00ednh c\u1ee7a keo, \u0111\u1ed9 h\u00fat n\u01b0\u1edbc v\u00e0 tr\u01b0\u01a1ng n\u1edf.<\/p>\n T\u1eeb kh\u00f3a: <\/i><\/b>V\u00e1n d\u0103m, g\u1ed7 h\u00f4ng, Paulownia tomentosa<\/i><\/p>\n Particleboard production from Paulownia tomentosa <\/i>wood using PMDI adhesives <\/b>Paulownia tomentosa <\/i>tree is known as an adaptable species that has a very high growth rate compared with other plantation species and low density 350 kg\/m3. This species can be potentially raw material for particleboard industry. In this study, particleboard produced from Paulownia wood particles and industrial particles using isocianate-adhesives. Paulownia wood particles were mixed the propotion 100%, 67%, 33%, 0% with industrial wood particles aiming to evaluate the impact of Paulownia wood particels on the properties of particleboard. There were 3 board density levels including 350 kg\/m3 500 kg\/m3 650 kg\/m3. The mechanical and physical properties of particleboard including modulus of rupture (EN 310:1993), modulus of elasticity (EN 310:1993), internal bond strength (EN 319:1993), thickness swelling and water absorption (EN 317: 1993), natural weathering (EN 927-3 2006), artificial weathering (EN 927-6 2002) were evaluated.<\/p>\n Keyword<\/i><\/b>: <\/b>Particleboard, Paulownia tomentosa<\/i>, wood particles<\/p>\n \u00a0<\/b><\/p>\n 10. \u0110\u1ed8 B\u1ec0N T\u1ef0 NHI\u00caN C\u1ee6A V\u00c1N D\u00c1N BI\u1ebeN T\u00cdNH T\u1eea G\u1ed6 B\u1ea0CH \u0110\u00c0N UROPHYLLA V\u1edaI H\u1ee2P CH\u1ea4T N-METHYLOL (mDMDHEU) V\u00c0 D\u1ea6U V\u1ece H\u1ea0T \u0110I\u1ec0U (CNSL) <\/b><\/p>\n Nguy\u00ea\u0303n H\u1ed3ng Minh, T\u1ea1 Th\u1ecb Thanh H\u01b0\u01a1ng, \u0110\u1ed7 Vu\u0303 Th\u1eafng, Ph\u1ea1m V\u0103n Ti\u1ebfn<\/i><\/b><\/p>\n Vi\u1ec7n Nghi\u00ean c\u1ee9u C\u00f4ng nghi\u1ec7p r\u1eebng – Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam<\/i><\/p>\n \u00a0<\/b><\/p>\n \u00a0<\/b><\/p>\n T\u00d3M T\u1eaeT<\/b><\/p>\n \u00a0<\/b>Nghi\u00ean c\u1ee9u s\u1eed d\u1ee5ng h\u00f3a ch\u1ea5t Modified Dimethyldihydroethylenurea (mDHDHEU) v\u00e0 D\u1ea7u v\u1ecf h\u1ea1t \u0110i\u1ec1u (CNSL) \u0111\u1ec3 bi\u1ebfn t\u00ednh v\u00e1n m\u1ecfng t\u1eeb g\u1ed7 B\u1ea1ch \u0111\u00e0n Urophylla (Eucalyptus urophylla) theo ph\u01b0\u01a1ng ph\u00e1p ng\u00e2m t\u1ea9m ch\u00e2n kh\u00f4ng- \u00e1p l\u1ef1c k\u1ebft h\u1ee3p v\u1edbi qu\u00e1 tr\u00ecnh x\u1eed l\u00fd nhi\u1ec7t \u0111\u1ec3 c\u1ed1 \u0111\u1ecbnh h\u00f3a ch\u1ea5t v\u00e0 bi\u1ebfn t\u00ednh g\u1ed7 cho v\u00e1n d\u00e1n. T\u00e1c d\u1ee5ng mong \u0111\u1ee3i c\u1ee7a c\u00e1c lo\u1ea1i h\u00f3a ch\u1ea5t n\u00e0y l\u00e0 b\u1ea3o v\u1ec7 b\u1ec1 m\u1eb7t g\u1ed7 kh\u1ecfi s\u1ef1 t\u00e1c \u0111\u1ed9ng ph\u00e2n h\u1ee7y c\u1ee7a tia t\u1eed ngo\u1ea1i, l\u00e0m t\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng ch\u1ed1ng h\u00fat n\u01b0\u1edbc, \u1ea9m c\u1ee7a g\u1ed7, c\u00f3 kh\u1ea3 n\u0103ng kh\u00e1ng vi sinh v\u1eadt h\u1ea1i g\u1ed7, t\u1eeb \u0111\u00f3 s\u1ebd h\u1ea1n ch\u1ebf \u0111\u01b0\u1ee3c c\u00e1c hi\u1ec7n t\u01b0\u1ee3ng b\u1ea1c m\u00e0u, n\u1ee9t, nh\u00e1m b\u1ec1 m\u1eb7t g\u1ed7 c\u0169ng nh\u01b0 l\u00e0m t\u0103ng kh\u1ea3 n\u0103ng \u1ed5n \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc c\u1ee7a v\u00e1n g\u1ed7 khi s\u1eed d\u1ee5ng ngo\u00e0i tr\u1eddi. V\u00e1n d\u00e1n bi\u1ebfn t\u00ednh \u0111\u01b0\u1ee3c t\u1ea1o th\u00e0nh t\u1eeb c\u00e1c t\u1ea5m v\u00e1n m\u1ecfng \u0111\u00e3 qua x\u1eed l\u00fd, sau \u0111\u00f3 c\u00e1c m\u1eabu v\u00e1n d\u00e1n \u0111\u01b0\u1ee3c \u0111\u01b0a ra b\u00e3i th\u1eed t\u1ef1 nhi\u00ean (H\u00e0 N\u1ed9i, Vi\u1ec7t Nam) trong kho\u1ea3ng th\u1eddi gian 9 th\u00e1ng \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ecbu th\u1eddi ti\u1ebft v\u00e0 vi sinh v\u1eadt h\u1ea1i g\u1ed7. S\u1ef1 \u1ed5n \u0111\u1ecbnh hi\u1ec7u l\u1ef1c c\u1ee7a h\u00f3a ch\u1ea5t tr\u00ean v\u00e1n g\u1ed7 \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 th\u00f4ng qua c\u00e1c ch\u1ec9 ti\u00eau v\u1ec1 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh m\u00e0u s\u1eafc b\u1ec1 m\u1eb7t v\u00e1n, m\u1ee9c \u0111\u1ed9 bong t\u00e1ch m\u00e0ng keo, kh\u1ea3 n\u0103ng kh\u00e1ng n\u1ea5m bi\u1ebfn m\u00e0u v\u00e0 \u0111\u1ed9 t\u0103ng s\u1ee9c ch\u1ed1ng h\u00fat n\u01b0\u1edbc \u1ea9m. K\u1ebft qu\u1ea3 th\u00ed nghi\u1ec7m cho th\u1ea5y, m\u00e0u s\u1eafc g\u1ed7 \u0111\u01b0\u1ee3c gi\u1eef t\u01b0\u01a1ng \u0111\u1ed1i t\u1ed1t v\u1edbi v\u00e1n \u0111\u01b0\u1ee3c bi\u1ebfn t\u00ednh b\u1eb1ng h\u00f3a ch\u1ea5t mDMDHEU, gi\u00e1 tr\u1ecb \uf044E \u0111\u1ea1t 12,52; v\u00e1n \u0111\u01b0\u1ee3c bi\u1ebfn t\u00ednh b\u1eb1ng CNSL c\u00f3 \uf044E cao h\u01a1n \u0111\u1ea1t 25,48 nh\u01b0ng c\u0169ng r\u1ea5t kh\u1ea3 quan khi so v\u1edbi m\u1eabu \u0111\u1ed1i ch\u1ee9ng c\u00f3 \uf044E l\u00ean t\u1edbi 37,71. Sau 9 th\u00e1ng th\u1eed nghi\u1ec7m, v\u00e1n \u0111\u01b0\u1ee3c x\u1eed l\u00fd v\u1edbi mDMDHEU \u0111\u1ea3m b\u1ea3o \u1ed5n \u0111\u1ecbnh k\u1ebft c\u1ea5u v\u00e0 kh\u00f4ng b\u1ecb bong t\u00e1ch m\u00e0ng keo t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi v\u00e1n \u0111\u1ed1i ch\u1ee9ng (s\u1eed d\u1ee5ng keo PRF) c\u1ea5p \u0111\u1ed9 r\u1ea5t b\u1ec1n; trong khi \u0111\u00f3, v\u00e1n \u0111\u01b0\u1ee3c x\u1eed l\u00fd v\u1edbi mDMDHEU v\u00e0 CNSL s\u1eed d\u1ee5ng keo MUF cho k\u1ebft qu\u1ea3 m\u1ee9c \u0111\u1ed9 bong t\u00e1ch \u0111\u1ec1u \u1edf m\u1ee9c x\u1ea5p x\u1ec9 c\u1ea5p 2 – c\u1ea5p \u0111\u1ed9 b\u1ec1n. Kh\u1ea3 n\u0103ng kh\u00e1ng n\u1ea5m bi\u1ebfn m\u00e0u c\u1ee7a h\u00f3a ch\u1ea5t mDMDHEU v\u00e0 CNSL cho hi\u1ec7u qu\u1ea3 t\u1ed1t v\u1edbi t\u1ef7 l\u1ec7 di\u1ec7n t\u00edch n\u1ea5m bi\u1ebfn m\u00e0u nh\u1ecf h\u01a1n 15% b\u1ec1 m\u1eb7t m\u1eabu g\u1ed7. V\u00e1n bi\u1ebfn t\u00ednh c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng h\u00fat \u1ea9m t\u1ed1t, v\u00e1n bi\u1ebfn t\u00ednh v\u1edbi mDMDHEU v\u00e0 CNSL c\u00f3 \u0111\u1ed9 \u1ea9m l\u1ea7n l\u01b0\u1ee3t l\u00e0 14,2% v\u00e0 13,5% trong khi \u0111\u1ed9 \u1ea9m t\u1ed1i \u0111a c\u1ee7a v\u00e1n \u0111\u1ed1i ch\u1ee9ng \u0111\u1ea1t 25% sau 9 th\u00e1ng th\u1eed nghi\u1ec7m \u1edf \u0111i\u1ec1u ki\u1ec7n th\u1eddi ti\u1ebft t\u1ef1 nhi\u00ean. <\/b><\/p>\n T\u1eeb kh\u00f3a: <\/i><\/b>B\u1ea1ch \u0110\u00e0n Urophylla, d\u1ea7u v\u1ecf h\u1ea1t \u0110i\u1ec1u, mDMDHEU, n\u1ea5m bi\u1ebfn m\u00e0u, th\u1eddi ti\u1ebft, v\u00e1n d\u00e1n bi\u1ebfn t\u00ednh<\/i>\u00a0<\/b><\/p>\n Natural durability of Eucalyptus urophylla plywood treated with N-Methylol compound (mDMDHEU) and Cashew Nut Shell Liquid (CNSL) <\/b><\/p>\n Eucalyptus urophylla veneers were impregnated with N-methylol (modified dimethyloldihydroxy ethyleneurea – mDMDHEU) and Cashew Nut Shell Liquid (CNSL) following the conditions of vacuum and pressure impregnation and then heat treated to make modified plywood. The modified plywood was then exposed to the testing field under natural weathering conditions of Hanoi, Vietnam for evaluation of the modified plywood resistance against to weather and microorganism degradation. The chemical efficiency stability of modified plywood is evaluated basing on color stability, bonding delamination, blue stain resistance and water uptake reduction. The results showed a significantly improved color stability \uf044E = 12.52 with the plywood treated by mDMDHEU; the plywood treated with CNSL showed a higher \uf044E = 25.48, while the untreated plywood losing much color by \uf044E 37.71. After 9 months of exposures, the mDMDHEU treated plywood was maintained comparably to the control without deformation and no bonding delamination (using PRF adhesive) according to durability level 1 – Very Durable, the delamination of CNSL treated plywood is at the durability level 2. The bonding delamination of the MUF plywood treated with mDMDHEU and CNSL passed the level 2 – Durable The mDMDHEU and CNSL treated plywood are highly resisted to less then 15% blue stain infection. The results after 9 months of ouside weathering showed low equilibrium moisture content of the mDMDHEU and CNSL treated plywood at 14,2% v\u00e0 13,5% respectively as compared to the 25% moisture content of the untreated plywood.<\/p>\n Keyword: <\/i><\/b>Blue stain, Cashew Nut Shell Liquid, Eucalyptus urophylla, modified dimethylol dihydroxyethyleneurea (mDMDHEU), modified plywood, weather<\/i><\/p>\n \u00a0<\/b><\/p>\n \u00a0<\/b><\/p>\n 11. NGHI\u00caN C\u1ee8U X\u00c1C \u0110\u1ecaNH KH\u1ea2 N\u0102NG B\u1ea2O QU\u1ea2N G\u1ed6 C\u00c1NG L\u00d2 (Betula alnoides <\/i>Buch – Ham), <\/i>V\u1ed0I THU\u1ed0C (Schima wallichii <\/i>(DC) Korth)<\/i>, X\u00c0 C\u1eea L\u00c1 NH\u1ece (Swietenia microphylla)<\/i>, B\u1eb0NG CH\u1ebe PH\u1ea8M XM5 T\u1ea8M THEO PH\u01af\u01a0NG PH\u00c1P NG\u00c2M TH\u01af\u1edcNG <\/b><\/p>\n \u0110\u1ed7 Th\u1ecb Ho\u00e0i Thanh, B\u00f9i Duy Ng\u1ecdc, Nguy\u00ea\u0303n Th\u1ecb H\u1eb1ng<\/b><\/p>\n Vi\u1ec7n Nghi\u00ean c\u1ee9u C\u00f4ng nghi\u1ec7p r\u1eebng<\/i><\/p>\n <\/p>\n \n\n\n| T\u00d3M T\u1eaeT <\/b><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n \u1ede Vi\u1ec7t Nam, C\u00e1ng l\u00f2, V\u1ed1i thu\u1ed1c v\u00e0 X\u00e0 c\u1eeb l\u00e1 nh\u1ecf l\u00e0 lo\u00e0i c\u00e2y c\u00f3 t\u1ed1c \u0111\u1ed9 sinh tr\u01b0\u1edfng nhanh c\u00f3 th\u00e2n th\u1eb3ng, tr\u00f2n \u0111\u1ec1u, \u0111\u01b0\u1eddng k\u00ednh g\u1ed7 l\u1edbn, m\u00e0u s\u1eafc \u0111\u1eb9p. Tuy nhi\u00ean, g\u1ed7 c\u1ee7a ch\u00fang ch\u1ec9 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c c\u00f4ng tr\u00ecnh x\u00e2y d\u1ef1ng v\u00e0 \u00edt \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong s\u1ea3n xu\u1ea5t \u0111\u1ed3 m\u1ed9c d\u00e2n d\u1ee5ng. \u0110\u1ec3 n\u00e2ng cao hi\u1ec7u qu\u1ea3 s\u1eed d\u1ee5ng c\u1ee7a g\u1ed7, 3 lo\u1ea1i g\u1ed7 C\u00e1ng l\u00f2, V\u1ed1i thu\u1ed1c v\u00e0 X\u00e0 c\u1eeb l\u00e1 nh\u1ecf \u0111\u01b0\u1ee3c x\u1eed l\u00fd ng\u00e2m t\u1ea9m b\u1ea3o qu\u1ea3n b\u1eb1ng ch\u1ebf ph\u1ea9m XM5 \u1edf n\u1ed3ng \u0111\u1ed9 7% v\u1edbi th\u1eddi gian x\u1eed l\u00fd l\u00e0 3 ng\u00e0y, 5 ng\u00e0y v\u00e0 7 ng\u00e0y theo ph\u01b0\u01a1ng ph\u00e1p ng\u00e2m th\u01b0\u1eddng. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u cho th\u1ea5y, v\u1edbi c\u00e1c th\u00f4ng s\u1ed1 c\u00f4ng ngh\u1ec7 ng\u00e2m t\u1ea9m, g\u1ed7 sau x\u1eed l\u00fd cho k\u1ebft qu\u1ea3 hi\u1ec7u l\u1ef1c b\u1ea3o qu\u1ea3n t\u1ed1t \u0111\u1ed1i v\u1edbi n\u1ea5m m\u1ed1c v\u00e0 m\u1ed1i g\u00e2y h\u1ea1i.<\/p>\n T\u1eeb kh\u00f3a: <\/i><\/b>B\u1ea3o qu\u1ea3n, C\u00e1ng l\u00f2, V\u1ed1i thu\u1ed1c, X\u00e0 c\u1eeb l\u00e1 nh\u1ecf, ch\u1ebf ph\u1ea9m XM5<\/p>\n Determination of treatment conditions in the application of XM5 preparation in preserving Betula alnoides Buch-Ham; Schima wallichii (DC) and Swietenia microphylla<\/b><\/p>\n \u00a0<\/b><\/p>\n \u00a0<\/b>In Vietnam, the Betula alnoides <\/i>Buch – Ham, Schima wallichii <\/i>(DC.) Korth and Swietenia microphylla <\/i>are fast-growing species having straight body, large, rounded stem and attractive strain pattern. However, the use of the species is limited in civil engineering, abandoning their potential in furniture industry. To increase usage effectiveness of those species, we investigated the durability of the wood species after treatment with XM5 preparations. The immersion durations were 3 days, 5 days and 7 days, in solution of 7% XM5. Data analysis proved that at specified treatment conditions, treated wood has improved resistance to molding fungi and termites.<\/p>\n <\/p>\n Keyword<\/i><\/b>: <\/b>Preservation Betula alnoides <\/i>Buch – Ham, Schima wallichii <\/i>(DC.) Korth and Swietenia microphylla. <\/i>Preparation XM5<\/p>\n <\/p>\n <\/p>\n","protected":false},"excerpt":{"rendered":" T\u1ea0P CH\u00cd KHOA H\u1eccC L\u00c2M NGHI\u1ec6P S\u1ed0 1 \u2013 2015 \u00a0 1. \u0110a d\u1ea1ng th\u1ef1c v\u1eadt th\u00e2n g\u1ed7 t\u1ef1 nhi\u00ean v\u00e0 hi\u1ec7n tr\u1ea1ng khai th\u00e1c t\u00e0i nguy\u00ean th\u1ef1c v\u1eadt r\u1eebng t\u1ea1i khu b\u1ea3o t\u1ed3n bi\u1ec3n C\u00f9 Lao Ch\u00e0m – th\u00e0nh ph\u1ed1 H\u1ed9i An Ph\u1ea1m Th\u1ecb Kim Thoa Diversity of natural woody plants and current state […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[26,24],"tags":[],"_links":{"self":[{"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/posts\/1451"}],"collection":[{"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/comments?post=1451"}],"version-history":[{"count":3,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/posts\/1451\/revisions"}],"predecessor-version":[{"id":1454,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/posts\/1451\/revisions\/1454"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/media?parent=1451"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/categories?post=1451"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/tags?post=1451"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}} | | | | | | | | | | |
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