{"id":8559,"date":"2009-03-24T02:11:32","date_gmt":"2009-03-23T19:11:32","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/2009\/03\/nghien-cuu-phuc-hoi-rung-tu-nhien-tai-tan-lap-dong-xoai-tinh-binh-phuoc\/"},"modified":"2019-09-25T10:28:09","modified_gmt":"2019-09-25T03:28:09","slug":"nghien-cuu-phuc-hoi-rung-tu-nhien-tai-tan-lap-dong-xoai-tinh-binh-phuoc","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/nghien-cuu-phuc-hoi-rung-tu-nhien-tai-tan-lap-dong-xoai-tinh-binh-phuoc\/","title":{"rendered":"Nghi\u00ean c\u1ee9u ph\u1ee5c h\u1ed3i r\u1eebng t\u1ef1 nhi\u00ean t\u1ea1i T\u00e2n L\u1eadp, \u0110\u1ed3ng Xo\u00e0i, t\u1ec9nh B\u00ecnh Ph\u01b0\u1edbc"},"content":{"rendered":"

Ph\u1ea1m V\u0103n \u0110\u1ea9u<\/strong> <\/em><\/p>\n

Ph\u00e2n Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Namb\u1ed9<\/em><\/p>\n

R\u1eebng t\u1ef1 nhi\u00ean c\u00f3 \u00fd ngh\u0129a r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi \u0111\u1eddi s\u1ed1ng con ng\u01b0\u1eddi. Ngo\u00e0i ch\u1ee9c n\u0103ng cung c\u1ea5p g\u1ed7 c\u1ee7i, \u0111\u1ed9ng th\u1ef1c v\u1eadt, c\u00e1c l\u00e2m s\u1ea3n qu\u00ed hi\u1ebfm\u2026 ch\u00fang c\u00f2n \u0111\u00f3ng vai tr\u00f2 t\u00edch c\u1ef1c trong ph\u00f2ng h\u1ed9, ch\u1ed1ng x\u00f3i m\u00f2n, r\u1eeda tr\u00f4i \u0111\u1ea5t, \u0111i\u1ec1u ho\u00e0 ngu\u1ed3n n\u01b0\u1edbc, \u0111i\u1ec1u ho\u00e0 kh\u00ed h\u1eadu, b\u1ea3o v\u1ec7 m\u00f4i sinh.<\/p>\n

Theo k\u1ebft qu\u1ea3 \u0111\u00e1nh gi\u00e1 c\u1ee7a C\u1ee5c Ph\u00e1t tri\u1ec3n L\u00e2m nghi\u1ec7p th\u00ec trong 8,252 tri\u1ec7u ha r\u1eebng t\u1ef1 nhi\u00ean c\u1ee7a n\u01b0\u1edbc ta hi\u1ec7n nay c\u00f3 5,181 tri\u1ec7u ha r\u1eebng l\u00e1 r\u1ed9ng th\u01b0\u1eddng xanh, trong \u0111\u00f3 r\u1eebng gi\u00e0u chi\u1ebfm 567.500ha (11%), r\u1eebng trung b\u00ecnh 1.717.000ha (33,1%) v\u00e0 r\u1eebng ngh\u00e8o 2.896.300 ha (55,9%). R\u1eebng gi\u00e0u c\u00f2n kh\u1ea3 n\u0103ng cung c\u1ea5p g\u1ed7 ph\u1ea7n l\u1edbn n\u1eb1m \u1edf v\u00f9ng xa, v\u00f9ng s\u00e2u, \u0111\u1ecba h\u00ecnh hi\u1ec3m tr\u1edf, kh\u00f4ng thu\u1eadn ti\u1ec7n cho v\u1eadn chuy\u1ec3n. R\u1eebng ngh\u00e8o th\u00ec c\u00f3 \u0111\u1ebfn c\u1ea3 tri\u1ec7u ha \u0111\u00e3 tr\u1edf n\u00ean ki\u1ec7t, ch\u1ec9 c\u00f2n c\u00e2y ch\u1ed3i l\u00fap x\u00fap, xen k\u1ebd nh\u1eefng l\u1ed7 tr\u1ed1ng c\u1ecf m\u1ecdc, l\u00e1c \u0111\u00e1c c\u00f2n nh\u1eefng c\u00e2y g\u1ed7 th\u01b0a th\u1edbt \u1edf t\u1ea7ng cao 15- 20m, c\u00e2y m\u1eb9 gieo gi\u1ed1ng c\u00f3 gi\u00e1 tr\u1ecb kinh t\u1ebf c\u00f2n r\u1ea5t \u00edt, t\u00e1i sinh r\u1ea5t k\u00e9m, \u0111a ph\u1ea7n l\u00e0 c\u00e2y t\u1ea1p. Nhi\u1ec1u n\u01a1i c\u00e2y r\u1eebng ch\u1ec9 c\u00f2n d\u00e2y leo, b\u1ee5i r\u1eadm; nh\u00ecn b\u1ec1 ngo\u00e0i c\u00f2n m\u1ed9t th\u1ea3m th\u1ef1c v\u1eadt m\u00e0u xanh nh\u01b0ng b\u00ean trong r\u1eebng \u0111\u00e3 tr\u1edf n\u00ean qu\u00e1 ngh\u00e8o ki\u1ec7t, ch\u1ec9 c\u00f2n th\u1ef1c hi\u1ec7n \u0111\u01b0\u1ee3c ch\u1ee9c n\u0103ng ph\u00f2ng h\u1ed9; n\u1ebfu \u0111\u1ec3 di\u1ec5n th\u1ebf t\u1ef1 nhi\u00ean th\u00ec kh\u00f4ng bi\u1ebft \u0111\u1ebfn bao gi\u1edd r\u1eebng m\u1edbi th\u1ef1c hi\u1ec7n \u0111\u01b0\u1ee3c ch\u1ee9c n\u0103ng cung c\u1ea5p g\u1ed7.<\/p>\n

Nghi\u00ean c\u1ee9u ph\u1ee5c h\u1ed3i r\u1eebng th\u1ee9 sinh, ngh\u00e8o ki\u1ec7t \u0111\u00e3 \u0111\u01b0\u1ee3c ng\u00e0nh l\u00e2m nghi\u1ec7p quan t\u00e2m r\u1ea5t s\u1edbm. Nhi\u1ec1u c\u00f4ng tr\u00ecnh nghi\u00ean c\u1ee9u khoa h\u1ecdc c\u1ee7a Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam k\u1ebft h\u1ee3p v\u1edbi c\u00e1c c\u01a1 s\u1edf s\u1ea3n xu\u1ea5t trong ng\u00e0nh \u0111\u00e3 \u0111\u01b0\u1ee3c tri\u1ec3n khai nh\u01b0 \u1edf v\u00f9ng C\u1ea7u Hai – Ph\u00fa Th\u1ecd (1964), Qu\u1ef3 Ch\u00e2u – Ngh\u1ec7 An (1974), Kon H\u00e0 N\u1eebng – Gia Lai (1980), L\u1ed9c Ninh – B\u00ecnh Ph\u01b0\u1edbc (1983), La Ng\u00e0, M\u00e3 \u0110\u00e0 – \u0110\u1ed3ng Nai (1984), Ph\u00fa Qu\u1ed1c – Ki\u00ean Giang (1984), T\u00e1nh Linh – B\u00ecnh Thu\u1eadn (1985)\u2026 v\u00e0 \u0111\u00e3 kh\u00e1 th\u00e0nh c\u00f4ng v\u1edbi vi\u1ec7c x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c nhi\u1ec1u lo\u00e0i c\u00e2y th\u00edch nghi cho m\u1ed7i v\u00f9ng nh\u01b0: Ch\u00f2 n\u00e2u (Dipterocarpus tokinensis<\/em>), r\u00e0ng r\u00e0ng m\u00edt, g\u1ed9i t\u00eda (Aglaia gigantera<\/em>), gi\u1ebb cau (Quereus platy calyx<\/em>), tr\u00e1m tr\u1eafng (Canarium album<\/em>), gi\u1ed5i xanh (Talauma gioi<\/em>), v\u1ea1ng tr\u1ee9ng (Endospermum chinense<\/em>), gi\u1ebb \u0111\u1ecf (Pasania ducampii<\/em>), re h\u01b0\u01a1ng (Cinnamomum albiforum<\/em>), l\u00e1t hoa (Chukracia tabularis<\/em>), lim x\u1eb9t (Pentophorum tonkiense<\/em>), d\u1ea7u r\u00e1i (Dipterocarpus alatus<\/em>), v\u00ean v\u00ean (Anisoptera costata<\/em>), g\u00f5 \u0111\u1ecf (afzalia xylocarpa<\/em>), sao \u0111en (Hopea odorata<\/em>), s\u1ebfn m\u1ee7 (Shorea conchinchinensis<\/em>), hu\u1ef7nh (Tarrietia conchinchinensis<\/em>)\u2026<\/p>\n

R\u1ea5t ti\u1ebfc hi\u1ec7n tr\u01b0\u1eddng nghi\u00ean c\u1ee9u th\u00ed nghi\u1ec7m \u1edf nhi\u1ec1u v\u00f9ng do kh\u00f4ng \u0111\u01b0\u1ee3c c\u1ea5p kinh ph\u00ed theo d\u00f5i li\u00ean t\u1ee5c, n\u00ean ch\u1ec9 duy tr\u00ec \u0111\u01b0\u1ee3c \u00edt n\u0103m v\u00e0 ph\u1ea7n l\u1edbn nh\u1eefng hi\u1ec7n tr\u01b0\u1eddng n\u00e0y \u0111\u1ebfn nay kh\u00f4ng c\u00f2n n\u1eefa.<\/p>\n

T\u1ec9nh B\u00ecnh Ph\u01b0\u1edbc, v\u1edbi di\u1ec7n t\u00edch r\u1eebng th\u1ee9 sinh ngh\u00e8o ki\u1ec7t tr\u00ean 50.000ha, \u0111ang \u0111\u1eb7t ra m\u1ed9t y\u00eau c\u1ea7u b\u1ee9c x\u00fac l\u00e0 ph\u1ea3i c\u00f3 nh\u1eefng gi\u1ea3i ph\u00e1p l\u00e2m sinh t\u00e1c \u0111\u1ed9ng v\u00e0o r\u1eebng m\u1ed9t c\u00e1ch h\u1ee3p l\u00fd, d\u1ec5 th\u1ef1c hi\u1ec7n, b\u1ed5 sung v\u00e0o r\u1eebng m\u1ed9t t\u1eadp \u0111o\u00e0n c\u00e2y phong ph\u00fa c\u00f3 ch\u1ea5t l\u01b0\u1ee3ng, sinh tr\u01b0\u1edfng kh\u00e1 \u0111\u1ec3 ph\u00e1t huy cao h\u01a1n ch\u1ee9c n\u0103ng ph\u00f2ng h\u1ed9 v\u00e0 chuy\u1ec3n ho\u00e1, l\u00e0m gi\u00e0u, cung c\u1ea5p g\u1ed7 trong t\u01b0\u01a1ng lai. T\u1eeb \u0111\u1ea7u n\u0103m 1998, \u0111\u1ec1 t\u00e0i nghi\u00ean c\u1ee9u ph\u1ee5c h\u1ed3i r\u1eebng th\u1ee9 sinh ngh\u00e8o ki\u1ec7t b\u1eb1ng k\u1ef9 thu\u1eadt l\u00e0m gi\u00e0u r\u1eebng theo r\u1ea1ch v\u1edbi di\u1ec7n t\u00edch x\u00e2y d\u1ef1ng m\u00f4 h\u00ecnh 20 ha \u0111\u00e3 \u0111\u01b0\u1ee3c tri\u1ec3n khai tr\u00ean \u0111\u1ed1i t\u01b0\u1ee3ng r\u1eebng Ic t\u1ea1i kho\u1ea3nh 9, ti\u1ec3u khu 382 thu\u1ed9c ban qu\u1ea3n l\u00fd r\u1eebng kinh t\u1ebf T\u00e2n L\u1eadp, \u0110\u1ed3ng Xo\u00e0i, t\u1ec9nh B\u00ecnh Ph\u01b0\u1edbc.<\/p>\n

I. Ph\u01b0\u01a1ng ph\u00e1p v\u00e0 v\u1eadt li\u1ec7u nghi\u00ean c\u1ee9u<\/p>\n

a. Thu th\u1eadp c\u00e1c t\u01b0 li\u1ec7u trong khu v\u1ef1c th\u00ed nghi\u1ec7m<\/em><\/p>\n

– \u0110i\u1ec1u tra l\u1eadp danh m\u1ee5c c\u00e1c lo\u1ea1i c\u00e2y g\u1ed7.<\/p>\n

– \u0110i\u1ec1u tra t\u00e1i sinh c\u00e1c lo\u1ea1i c\u00e2y.<\/p>\n

– \u0110\u00e0o ph\u1eabu di\u1ec7n \u0111\u1ea5t v\u00e0 ph\u00e2n t\u00edch c\u00e1c ch\u1ec9 ti\u00eau ho\u00e1 t\u00ednh 5 ph\u1eabu di\u1ec7n \u0111\u1ea1i di\u1ec7n.<\/p>\n

b. B\u1ed1 tr\u00ed th\u00ed nghi\u1ec7m ng\u1eabu nhi\u00ean theo r\u1ea1ch t\u1ed1i thi\u1ec3u c\u00f3 3 l\u1ea7n l\u1eb7p v\u1edbi 2 nghi\u1ec7m th\u1ee9c<\/em><\/p>\n

– C\u00e2y trong r\u1ea1ch v\u1edbi t\u00e1n r\u1eebng c\u00e2y b\u1ee5i l\u00fap x\u00fap c\u00f3 chi\u1ec1u cao 6-8m.<\/p>\n

– C\u00e2y trong r\u1ea1ch v\u1edbi t\u00e1n r\u1eebng c\u00e2y b\u1ee5i l\u00fap x\u00fap c\u00f3 chi\u1ec1u cao 6-8m v\u00e0 c\u00f2n r\u1ea3i r\u00e1c c\u00e2y g\u1ed7 c\u00f3 t\u00e1n che tr\u00ean cao 15- 20m.<\/p>\n

c. R\u1ea1ch b\u1ed1 tr\u00ed th\u00ed nghi\u1ec7m theo h\u01b0\u1edbng \u0110\u00f4ng T\u00e2y<\/em>, chi\u1ec1u r\u1ed9ng c\u1ee7a r\u1ea1ch 4m \u0111\u01b0\u1ee3c ch\u1eb7t to\u00e0n b\u1ed9 c\u00e2y b\u1ee5i, d\u00e2y leo, c\u1ecf d\u1ea1i, tre gai, ch\u1ec9 ch\u1eeba l\u1ea1i c\u00e2y t\u00e1i sinh c\u00f3 gi\u00e1 tr\u1ecb kinh t\u1ebf, t\u1ea1o \u0111i\u1ec1u ki\u1ec7n \u00e1nh s\u00e1ng cho c\u00e2y tr\u1ed3ng. Tr\u00ean r\u1ea1ch b\u1ed1 tr\u00ed m\u1ed9t h\u00e0ng c\u00e2y, c\u00e2y c\u00e1ch nhau 4m. R\u1ea1ch ch\u1eeba c\u00f3 chi\u1ec1u r\u1ed9ng 6m \u0111\u01b0\u1ee3c ph\u00e1t lu\u1ed7ng tre gai, d\u00e2y leo, c\u1ecf d\u1ea1i. Kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c h\u00e0ng c\u00e2y l\u00e0 10 m. H\u1ed1 tr\u1ed3ng c\u00f3 k\u00edch th\u01b0\u1edbc 50x 50x 50cm. C\u00e2y \u0111\u01b0\u1ee3c tr\u1ed3ng v\u00e0o th\u00e1ng 8\/ 1998. B\u1ed1 tr\u00ed 1ha r\u1eebng t\u1ef1 nhi\u00ean l\u00e0m \u0111\u1ed1i ch\u1ee9ng kh\u00f4ng t\u00e1c \u0111\u1ed9ng.<\/p>\n

d. H\u00e0ng n\u0103m \u0111o \u0111\u1ebfm sinh tr\u01b0\u1edfng c\u00e2y tr\u1ed3ng,<\/em>thu th\u1eadp c\u00e1c s\u1ed1 li\u1ec7u Dg, Hvn, t\u00ednh to\u00e1n s\u1ed1 li\u1ec7u theo ph\u01b0\u01a1ng ph\u00e1p th\u1ed1ng k\u00ea to\u00e1n h\u1ecdc.<\/p>\n

e. V\u1eadt li\u1ec7u th\u00ed nghi\u1ec7m l\u00e0 c\u00e1c lo\u1ea1i c\u00e2y g\u1ed7 c\u00f3 gi\u00e1 tr\u1ecb kinh t\u1ebf<\/em>, c\u00f3 ngu\u1ed3n gi\u1ed1ng \u0111\u01b0\u1ee3c gieo \u01b0\u01a1m trong v\u00f9ng \u0110\u00f4ng Nam b\u1ed9, \u0111a ph\u1ea7n l\u00e0 c\u00e2y b\u1ea3n \u0111\u1ecba, m\u1ed9t s\u1ed1 \u00edt l\u00e0 c\u00e2y nh\u1eadp n\u1ed9i \u0111\u00e3 \u0111\u01b0\u1ee3c kh\u1ea3o nghi\u1ec7m t\u1eeb nhi\u1ec1u n\u0103m v\u00e0 hi\u1ec7n nay \u0111\u00e3 c\u00f3 ngu\u1ed3n gi\u1ed1ng, c\u00e2y con gieo \u01b0\u01a1m trong b\u1ea7u m\u00e0ng PE. C\u00e1c lo\u00e0i c\u00e2y tham gia trong m\u00f4 h\u00ecnh l\u00e0:<\/p>\n

D\u1ea7u n\u01b0\u1edbc Dipterocarpus alatus<\/em> Roxb.<\/p>\n

Sao \u0111en Hopea odorata<\/em> Roxb.<\/p>\n

V\u00ean v\u00ean Anisoptera costata<\/em> Korth.<\/p>\n

Ch\u00f2 ch\u1ec9 Parashorea stellata<\/em> Kurz.<\/p>\n

G\u00f5 \u0111\u1ecf Afzlia xylocarpa<\/em> Craib.<\/p>\n

Gi\u00e1ng h\u01b0\u01a1ng Pterocarpus macrocarpus<\/em> Kurz.<\/p>\n

Mu\u1ed3ng \u0111en Cassia siamea<\/em> Lam.<\/p>\n

Lim xanh Erythrophroeum fordii<\/em> Oliv.<\/p>\n

X\u00e0 c\u1eeb Khayasenegalensis <\/em>A. Juss<\/p>\n

X\u00e0 c\u1eeb l\u00e1 nh\u1ecf Swietenia microphylla<\/em> Cam.<\/p>\n

Gi\u00e1i ng\u1ef1a Swietenia macrophylla<\/em> King.<\/p>\n

Chi\u00eau li\u00eau Ternrinalia superba<\/em><\/p>\n

Tr\u00e1m tr\u1eafng Canarium album<\/em> Roeusch<\/p>\n

II. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u<\/p>\n

M\u1ed9t s\u1ed1 s\u1ed1 li\u1ec7u v\u1ec1 sinh tr\u01b0\u1edfng c\u00e2y tr\u1ed3ng \u0111\u01b0\u1ee3c k\u00ea trong b\u1ea3ng d\u01b0\u1edbi:<\/p>\n

Sinh tr\u01b0\u1edfng c\u00e2y tr\u1ed3ng <\/em>(S\u1ed1 li\u1ec7u \u0111o \u0111\u1ebfm th\u00e1ng 8\/ 1998 v\u00e0 th\u00e1ng 12\/ 2000)<\/em><\/p>\n\n\n\n\n\n\n
STT<\/td>\nLo\u00e0i c\u00e2y<\/td>\nTr\u1ed3ng 8\/1998<\/td>\n\u0110o sinh tr\u01b0\u1edfng 12\/ 2000<\/td>\n<\/tr>\n
R\u1ea1ch ch\u1eeba cao 6-8m<\/td>\nR\u1ea1ch ch\u1eeba cao 15-20m<\/td>\n<\/tr>\n
H<\/p>\n

(m)<\/td>\n

D (cm)<\/td>\nH<\/p>\n

(m)<\/td>\n

?H<\/td>\nD<\/p>\n

(cm)<\/td>\n

?D<\/td>\nH<\/p>\n

(m)<\/td>\n

?H<\/td>\nD<\/p>\n

(cm)<\/td>\n

?D<\/td>\n<\/tr>\n
D\u1ea7u r\u00e1i<\/p>\n

Sao \u0111en<\/p>\n

V\u00ean v\u00ean<\/p>\n

Ch\u00f2 ch\u1ec9<\/p>\n

Lim xanh<\/p>\n

Mu\u1ed3ng \u0111en<\/p>\n

G\u00f5 \u0111\u1ecf<\/p>\n

Gi\u00e1ng h\u01b0\u01a1ng<\/p>\n

X\u00e0 c\u1eeb<\/p>\n

X\u00e0 c\u1eeb l\u00e1 nh\u1ecf<\/p>\n

Gi\u00e1i ng\u1ef1a<\/p>\n

Chi\u00eau li\u00eau<\/p>\n

Tr\u00e1m tr\u1eafng<\/td>\n

0,82<\/p>\n

0,75<\/p>\n

0,72<\/p>\n

0,45<\/p>\n

0,35<\/p>\n

0,55<\/p>\n

0,88<\/p>\n

0,90<\/p>\n

0,95<\/p>\n

0,95<\/p>\n

0,98<\/p>\n

0,75<\/p>\n

0,78<\/td>\n

0,8<\/p>\n

0,6<\/p>\n

0,8<\/p>\n

0,5<\/p>\n

0,4<\/p>\n

0,5<\/p>\n

0,9<\/p>\n

0,9<\/p>\n

1,1<\/p>\n

1,2<\/p>\n

1,2<\/p>\n

0,6<\/p>\n

0,7<\/td>\n

2,23<\/p>\n

1,96<\/p>\n

2,30<\/p>\n

1,76<\/p>\n

3,27<\/p>\n

5,89<\/p>\n

2,19<\/p>\n

2,51<\/p>\n

4,07<\/p>\n

3,64<\/p>\n

3,78<\/p>\n

4,11<\/p>\n

1,78<\/td>\n

0,60<\/p>\n

0,52<\/p>\n

0,68<\/p>\n

0,56<\/p>\n

1,25<\/p>\n

2,29<\/p>\n

0,56<\/p>\n

0,69<\/p>\n

1,34<\/p>\n

1,15<\/p>\n

1,20<\/p>\n

1,44<\/p>\n

0,42<\/td>\n

3,2<\/p>\n

2,2<\/p>\n

3,0<\/p>\n

1,7<\/p>\n

3,4<\/p>\n

5,4<\/p>\n

2,6<\/p>\n

3,0<\/p>\n

5,4<\/p>\n

4,6<\/p>\n

4,6<\/p>\n

5,8<\/p>\n

2,3<\/td>\n

1,0<\/p>\n

0,7<\/p>\n

0,9<\/p>\n

0,5<\/p>\n

1,3<\/p>\n

2,1<\/p>\n

0,7<\/p>\n

0,9<\/p>\n

1,8<\/p>\n

1,4<\/p>\n

1,4<\/p>\n

2,2<\/p>\n

0,7<\/td>\n

1,63<\/p>\n

1,63<\/p>\n

1,88<\/p>\n

1,49<\/p>\n

2,21<\/p>\n

3,17<\/p>\n

2,97<\/p>\n

2,63<\/p>\n

2,89<\/td>\n

0,35<\/p>\n

0,38<\/p>\n

0,49<\/p>\n

0,45<\/p>\n

0,79<\/p>\n

1,12<\/p>\n

0,86<\/p>\n

0,71<\/p>\n

0,92<\/td>\n

2,0<\/p>\n

1,7<\/p>\n

2,1<\/p>\n

1,4<\/p>\n

2,4<\/p>\n

2,4<\/p>\n

3,3<\/p>\n

3,3<\/p>\n

3,5<\/td>\n

0,5<\/p>\n

0,5<\/p>\n

0,5<\/p>\n

0,4<\/p>\n

0,8<\/p>\n

0,8<\/p>\n

0,9<\/p>\n

0,9<\/p>\n

1,2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Qua s\u1ed1 li\u1ec7u trong b\u1ea3ng v\u00e0 quan s\u00e1t \u1edf m\u00f4 h\u00ecnh, c\u00f3 m\u1ed9t s\u1ed1 nh\u1eadn x\u00e9t:<\/em><\/p>\n

– C\u00e2y tr\u1ed3ng trong c\u00e1c r\u1ea1ch m\u00e0 t\u1ea7ng r\u1eebng \u1edf r\u1ea1ch ch\u1eeba cao 6-8m sinh tr\u01b0\u1edfng v\u01b0\u1ee3t tr\u1ed9i so v\u1edbi c\u00e2y tr\u1ed3ng trong c\u00e1c r\u1ea1ch m\u00e0 t\u1ea7ng r\u1eebng \u1edf r\u1ea1ch ch\u1eeba c\u00f2n l\u1ea1i l\u1edbp c\u00e2y g\u1ed7 \u1edf t\u1ea7ng cao 15-20m.<\/p>\n

– C\u00e1c lo\u00e0i c\u00e2y nh\u01b0 d\u1ea7u r\u00e1i, sao \u0111en, v\u00ean v\u00ean, ch\u00f2 ch\u1ec9, g\u00f5 \u0111\u1ecf, gi\u00e1ng h\u01b0\u01a1ng l\u00e0 c\u00e1c lo\u00e0i c\u00e2y b\u1ea3n \u0111\u1ecba, t\u1ecf ra sinh tr\u01b0\u1edfng kh\u00e1 ch\u1eadm ngay c\u1ea3 tr\u00ean c\u00e1c r\u1ea1ch c\u00f3 \u0111\u1ee7 \u00e1nh s\u00e1ng.<\/p>\n

– C\u00e1c lo\u00e0i nh\u01b0 lim xanh, chi\u00eau li\u00eau, mu\u1ed3ng \u0111en, gi\u00e1i ng\u1ef1a, x\u00e0 c\u1eeb, x\u00e0 c\u1eeb l\u00e1 nh\u1ecf tr\u1ed3ng trong r\u1ea1ch, \u0111\u01b0\u1ee3c x\u1eed l\u00fd c\u00f3 \u0111\u1ee7 \u00e1nh s\u00e1ng t\u1ecf ra sinh tr\u01b0\u1edfng kh\u00e1, c\u00e1 bi\u1ec7t c\u00f3 nh\u1eefng c\u00e2y m\u1edbi ch\u1ec9 tr\u1ed3ng \u0111\u01b0\u1ee3c g\u1ea7n 3 n\u0103m m\u00e0 chi\u1ec1u cao v\u00fat ng\u1ecdn \u0111\u00e3 \u0111\u1ea1t \u0111\u01b0\u1ee3c 8m, ngang v\u1edbi t\u00e1n r\u1eebng c\u00f2n l\u1ea1i \u1edf r\u1ea1ch ch\u1eeba.<\/p>\n

– C\u00e2y lim c\u00f3 t\u00e1n l\u00e1 xanh quanh n\u0103m, ngay c\u1ea3 trong nh\u1eefng th\u00e1ng m\u00f9a kh\u00f4 kh\u1eafc nghi\u1ec7t, g\u00f5 \u0111\u1ecf, gi\u00e1ng h\u01b0\u01a1ng d\u1ee5ng tr\u1ee5i h\u1ebft l\u00e1 th\u00ec lim xanh v\u1eabn ra ch\u1ed3i non, v\u1eabn sinh tr\u01b0\u1edfng.<\/p>\n

– Nh\u00ecn chung, c\u00e1c lo\u00e0i c\u00e2y \u0111\u01b0a v\u00e0o tr\u1ed3ng trong r\u1ea1ch do b\u1ecb t\u00e1n r\u1eebng c\u1ee7a r\u1ea1ch ch\u1eeba ch\u00e8n \u00e9p n\u00ean ch\u00fang c\u00f3 xu th\u1ebf v\u01b0\u01a1n l\u00ean sinh tr\u01b0\u1edfng v\u1ec1 chi\u1ec1u cao m\u1ea1nh h\u01a1n v\u1ec1 \u0111\u01b0\u1eddng k\u00ednh, t\u1ec9a c\u00e0nh t\u1ef1 nhi\u00ean m\u1ea1nh h\u01a1n.<\/p>\n

– C\u00e1c r\u1ea1ch ch\u1eeba \u0111\u01b0\u1ee3c ph\u00e1t lu\u1ed7ng d\u00e2y leo v\u00e0 lo\u1ea1i b\u1ecf c\u00e1c c\u00e2y phi m\u1ee5c \u0111\u00edch n\u00ean th\u00f4ng tho\u00e1ng h\u01a1n, m\u00f4i tr\u01b0\u1eddng \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n, l\u1edbp c\u00e2y t\u00e1i sinh t\u1ef1 nhi\u00ean ph\u00e1t tri\u1ec3n kh\u00e1 h\u01a1n.<\/p>\n

III. Th\u1ea3o lu\u1eadn v\u00e0 k\u1ebft lu\u1eadn<\/p>\n

+ M\u1ee5c \u0111\u00edch c\u1ee7a l\u00e0m gi\u00e0u r\u1eebng l\u00e0 duy tr\u00ec v\u00e0 ph\u00e1t huy ng\u00e0y c\u00e0ng cao t\u00e1c d\u1ee5ng ph\u00f2ng h\u1ed9 c\u1ee7a r\u1eebng t\u1ef1 nhi\u00ean, t\u1eadn d\u1ee5ng s\u1ef1 h\u1ed7 tr\u1ee3 c\u1ee7a n\u1ec1n r\u1eebng c\u0169 v\u1edbi c\u00e2y tr\u1ed3ng m\u1edbi \u0111\u1ec3 x\u00e2y d\u1ef1ng r\u1eebng v\u1edbi c\u00e2y tr\u1ed3ng l\u00e0m gi\u00e0u chi\u00eam \u01b0u th\u1ebf, h\u1ed7n lo\u1ea1i v\u1edbi c\u00e2y s\u1eb5n c\u00f3 trong t\u1ef1 nhi\u00ean. \u0110\u1ec3 \u0111i \u0111\u1ebfn th\u00e0nh c\u00f4ng th\u00ec vi\u1ec7c t\u00e1c \u0111\u1ed9ng v\u00e0o r\u1eebng ph\u1ea3i h\u1ebft s\u1ee9c t\u1ef7 m\u1ef7, ph\u1ea3i \u0111\u01b0\u1ee3c coi l\u00e0 bi\u1ec7n ph\u00e1p k\u1ef9 thu\u1eadt th\u00e2m canh, ph\u1ea3i gi\u1ea3i to\u1ea3 \u0111\u01b0\u1ee3c nh\u1eefng m\u00e2u thu\u1eabn n\u1ea3y sinh gi\u1eefa th\u1ea3m th\u1ef1c v\u1eadt hi\u1ec7n c\u00f3 v\u00e0 c\u1ea3 h\u1ec7 \u0111\u1ed9ng v\u1eadt, c\u00f4n tr\u00f9ng, vi sinh v\u1eadt c\u1ee7a r\u1eebng v\u1edbi c\u00e2y tr\u1ed3ng m\u1edbi trong giai \u0111o\u1ea1n ph\u00e1t tri\u1ec3n c\u1ee7a c\u00e2y tr\u1ed3ng.<\/p>\n

+ C\u00e1c gi\u1ea3i ph\u00e1p k\u1ef9 thu\u1eadt t\u00e1c \u0111\u1ed9ng v\u00e0o r\u1eebng \u0111\u1ec3 \u0111\u01a1n gi\u1ea3n ho\u00e1 v\u1ec1 m\u1eb7t t\u1ed5 th\u00e0nh, t\u0103ng th\u00eam c\u00e1c lo\u00e0i c\u00e2y c\u00f3 gi\u00e1 tr\u1ecb kinh t\u1ebf cao, sinh tr\u01b0\u1edfng nhanh, t\u1ea1o ra nh\u1eefng nh\u00f3m sinh th\u00e1i \u0111\u1ec3 r\u1eebng ph\u00e1t tri\u1ec3n b\u1ec1n v\u1eefng l\u00e0 v\u1ea5n \u0111\u1ec1 c\u1ea7n \u0111\u01b0\u1ee3c ti\u1ebfp t\u1ee5c quan t\u00e2m.<\/p>\n

+ L\u00e0m gi\u00e0u r\u1eebng tr\u00ean n\u1ec1n r\u1eebng th\u1ee9 sinh ngh\u00e8o ki\u1ec7t, d\u1ea1ng r\u1eebng Ib v\u00e0 Ic, theo ph\u01b0\u01a1ng ph\u00e1p m\u1edf r\u1ea1ch, tuy m\u1edbi tri\u1ec3n khai \u0111\u01b0\u1ee3c 3 n\u0103m, nh\u01b0ng qua sinh tr\u01b0\u1edfng c\u1ee7a c\u00e2y tr\u1ed3ng m\u1edbi v\u1edbi 13 lo\u00e0i c\u00e2y \u0111\u01b0a v\u00e0o tr\u1ed3ng th\u00ed nghi\u1ec7m, k\u1ebft qu\u1ea3 r\u1ea5t kh\u1ea3 quan. C\u00f4ng tr\u00ecnh c\u1ea7n \u0111\u01b0\u1ee3c ti\u1ebfp t\u1ee5c \u0111\u1ea7u t\u01b0 theo d\u00f5i \u0111\u1ec3 ho\u00e0n thi\u1ec7n v\u1ec1 c\u00f4ng ngh\u1ec7 v\u00e0 s\u1edbm \u0111\u01b0a v\u00e0o \u1ee9ng d\u1ee5ng trong s\u1ea3n xu\u1ea5t c\u1ee7a ng\u00e0nh.<\/p>\n

T\u00e0i li\u1ec7u tham kh\u1ea3o ch\u00ednh<\/p>\n

1 – Baur. Geoge, 1976. C\u01a1 s\u1edf sinh th\u00e1i h\u1ecdc kinh doanh r\u1eebng m\u01b0a. V\u01b0\u01a1ng T\u1ea5n Nh\u1ecb d\u1ecbch, Nh\u00e0 xu\u1ea5t b\u1ea3n KHKT.<\/p>\n

2 – Nguy\u1ec5n V\u0103n Tr\u01b0\u01a1ng, 1986. Th\u00e2m canh r\u1eebng t\u1ef1 nhi\u00ean. Nh\u00e0 xu\u1ea5t b\u1ea3n n\u00f4ng nghi\u1ec7p.<\/p>\n

3 – B\u1ed9 L\u00e2m nghi\u1ec7p, 1993. Quy ph\u1ea1m c\u00e1c gi\u1ea3i ph\u00e1p k\u1ef9 thu\u1eadt l\u00e2m sinh \u00e1p d\u1ee5ng cho r\u1eebng s\u1ea3n xu\u1ea5t g\u1ed7 v\u00e0 tre n\u1ee9a.<\/p>\n

4 – V\u0169 Xu\u00e2n \u0110\u1ec1, 1985. C\u00e1c gi\u1ea3i ph\u00e1p t\u1ed5ng h\u1ee3p khai th\u00e1c \u0111\u1ea3m b\u1ea3o t\u00e1i sinh c\u1ea3i t\u1ea1o v\u00e0 tr\u1ed3ng r\u1eebng c\u00e2y g\u1ed7 l\u1edbn, g\u1ed7 qu\u00fd \u1edf mi\u1ec1n \u0110\u00f4ng Nam b\u1ed9 (04.01.01.03)- B\u00e1o c\u00e1o khoa h\u1ecdc.<\/p>\n

Research on natural forest rehabilitation at Tan Lap, Dong Xoai, Binh Phuoc province.<\/p>\n

Summary:<\/em>There mentioned in this paper the research on rehabilitation of depleted secondary forest by forest enrichment technique with row planting. A 20 ha model was established in the area of Ic forest, compartment 9, block 382 of the Tan Lap Management Board of Economic Forests, Dong Xoai, Binh Phuoc province.<\/p>\n

It is only 3 years since the establishment now but rather satisfactory results have been obtained through the growth of planted trees of high economic value species .<\/p>\n

Investment must be continued for monitoring and having the technology perfected and soon applied in production in forestry.<\/p>\n

**************************************<\/p>\n","protected":false},"excerpt":{"rendered":"

R\u1eebng t\u1ef1 nhiên có ý ngh\u0129a r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi \u0111\u1eddi s\u1ed1ng con ng\u01b0\u1eddi. Ngoài ch\u1ee9c n\u0103ng cung c\u1ea5p g\u1ed7 c\u1ee7i, \u0111\u1ed9ng th\u1ef1c v\u1eadt, các lâm s\u1ea3n quí hi\u1ebfm… chúng còn \u0111óng vai trò tích c\u1ef1c trong phòng h\u1ed9, ch\u1ed1ng xói mòn, r\u1eeda trôi \u0111\u1ea5t, \u0111i\u1ec1u hoà ngu\u1ed3n n\u01b0\u1edbc, \u0111i\u1ec1u hoà khí h\u1eadu, b\u1ea3o v\u1ec7 môi sinh. <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[18],"tags":[],"_links":{"self":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/8559"}],"collection":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/comments?post=8559"}],"version-history":[{"count":2,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/8559\/revisions"}],"predecessor-version":[{"id":19340,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/8559\/revisions\/19340"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=8559"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=8559"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=8559"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}