Tre l\u00e0 m\u1ed9t lo\u1ea1i l\u00e2m s\u1ea3n \u0111\u1eb7c bi\u1ec7t, \u0111\u00e3 g\u1eafn b\u00f3 v\u1edbi \u0111\u1eddi s\u1ed1ng nh\u00e2n d\u00e2n ta t\u1eeb r\u1ea5t l\u00e2u. Tre \u0111\u01b0\u1ee3c l\u00e0m d\u1ee5ng c\u1ee5 gia \u0111\u00ecnh, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong x\u00e2y d\u1ef1ng, giao th\u00f4ng v\u1eadn t\u1ea3i, khai th\u00e1c m\u1ecf, s\u1ea3n xu\u1ea5t gi\u1ea5y s\u1ee3i, v\u00e1n nh\u00e2n t\u1ea1o, \u0111\u1ed3 m\u1ed9c, n\u00f4ng c\u1ee5, h\u00e0ng th\u1ee7 c\u00f4ng m\u1ef9 ngh\u1ec7…<\/p>\n
Do tre v\u1eeba l\u00e0 nguy\u00ean li\u1ec7u l\u1ea1i v\u1eeba l\u00e0 v\u1eadt li\u1ec7u, n\u00ean nhi\u1ec1u n\u01b0\u1edbc tr\u00ean th\u1ebf gi\u1edbi \u0111\u00e3 ti\u1ebfn h\u00e0nh nghi\u00ean c\u1ee9u, th\u00ed nghi\u1ec7m v\u1ec1 t\u00ednh ch\u1ea5t v\u1eadt l\u00fd v\u00e0 c\u01a1 h\u1ecdc c\u1ee7a tre. \u1edf n\u01b0\u1edbc ta, th\u00ed nghi\u1ec7m \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c t\u00ednh ch\u1ea5t v\u1eadt l\u00fd v\u00e0 c\u01a1 h\u1ecdc c\u1ee7a tre t\u1eeb tr\u01b0\u1edbc \u0111\u1ebfn nay \u00edt \u0111\u01b0\u1ee3c ch\u00fa \u00fd do nhi\u1ec1u nguy\u00ean nh\u00e2n, trong \u0111\u00f3 c\u00f3 nguy\u00ean nh\u00e2n thi\u1ebfu ph\u01b0\u01a1ng ph\u00e1p th\u1eed chu\u1ea9n. Ph\u00f2ng C\u01a1 l\u00fd g\u1ed7 (Vi\u1ec7n C\u00f4ng nghi\u1ec7p r\u1eebng) \u2013 nay l\u00e0 Ph\u00f2ng T\u00e0i nguy\u00ean Th\u1ef1c v\u1eadt r\u1eebng (Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam) c\u0169ng \u0111\u00e3 t\u1eebng ti\u1ebfn h\u00e0nh m\u1ed9t s\u1ed1 th\u00ed nghi\u1ec7m x\u00e1c \u0111\u1ecbnh \u0111\u1eb7c t\u00ednh c\u1ee7a tre nh\u01b0ng c\u0169ng m\u1edbi ch\u1ec9 d\u1eebng l\u1ea1i \u1edf b\u01b0\u1edbc \u0111\u1ea7u v\u00e0 ch\u1ee7 y\u1ebfu s\u1eed d\u1ee5ng m\u1ed9t s\u1ed1 ph\u01b0\u01a1ng ph\u00e1p th\u1eed c\u1ee7a Trung Qu\u1ed1c do c\u00e1n b\u1ed9 nghi\u00ean c\u1ee9u s\u01b0u t\u1eadp \u0111\u01b0\u1ee3c. N\u0103m 2002, Ph\u00f2ng T\u00e0i nguy\u00ean Th\u1ef1c v\u1eadt r\u1eebng \u0111\u00e3 ti\u1ebfn h\u00e0nh th\u0103m d\u00f2 \u0111\u1eb7c t\u00ednh c\u1ee7a m\u1ed9t s\u1ed1 lo\u00e0i tre c\u00f3 \u00e1p d\u1ee5ng ch\u1ecdn l\u1ecdc ph\u01b0\u01a1ng ph\u00e1p th\u1eed c\u1ee7a Trung Qu\u1ed1c v\u00e0 c\u1ee7a M\u1ea1ng l\u01b0\u1edbi Qu\u1ed1c t\u1ebf v\u1ec1 tre song m\u00e2y (INBAR) \u0111\u1ec3 cho ph\u00f9 h\u1ee3p v\u1edbi \u0111i\u1ec1u ki\u1ec7n th\u00ed nghi\u1ec7m s\u1eb5n c\u00f3. D\u1ef1a tr\u00ean c\u00e1c t\u00e0i li\u1ec7u v\u00e0 th\u1ef1c t\u1ebf th\u00ed nghi\u1ec7m v\u1eeba qua, ch\u00fang t\u00f4i m\u1ea1nh d\u1ea1n \u0111\u01b0a ra c\u00e1ch x\u00e1c \u0111\u1ecbnh kh\u1ed1i l\u01b0\u1ee3ng ri\u00eang v\u00e0 \u0111\u1ed9 co r\u00fat c\u1ee7a tre d\u1ef1a tr\u00ean m\u1eabu th\u1eed nh\u1ecf \u0111\u1ec3 l\u00e0m t\u00e0i li\u1ec7u tham kh\u1ea3o v\u1edbi hy v\u1ecdng s\u1ebd nh\u1eadn \u0111\u01b0\u1ee3c c\u00e1c \u00fd ki\u1ebfn \u0111\u00f3ng g\u00f3p c\u1ee7a nhi\u1ec1u \u0111\u1ed9c gi\u1ea3.<\/p>\n
1. X\u00e1c \u0111\u1ecbnh kh\u1ed1i l\u01b0\u1ee3ng ri\u00eang (Kh\u1ed1i l\u01b0\u1ee3ng th\u1ec3 t\u00edch)<\/b><\/p>\n
Trong ph\u00f2ng th\u00ed nghi\u1ec7m, vi\u1ec7c x\u00e1c \u0111\u1ecbnh kh\u1ed1i l\u01b0\u1ee3ng ri\u00eang c\u1ee7a tre kh\u00f3 c\u00f3 th\u1ec3 ti\u1ebfn h\u00e0nh b\u1eb1ng c\u00e1ch c\u00e2n, \u0111o c\u1ee7a c\u1ea3 th\u00e2n c\u00e2y tre m\u1eabu m\u00e0 ph\u1ea3i d\u1ef1a v\u00e0o c\u00e1c m\u1eabu th\u1eed c\u00f3 k\u00edch th\u01b0\u1edbc nh\u1ecf \u0111\u1ec3 vi\u1ec7c ti\u1ebfn h\u00e0nh d\u1ec5 d\u00e0ng h\u01a1n m\u00e0 v\u1eabn \u0111\u1ea3m b\u1ea3o \u0111\u01b0\u1ee3c \u0111\u1ed9 ch\u00ednh x\u00e1c theo y\u00eau c\u1ea7u.<\/p>\n
Kh\u1ed1i l\u01b0\u1ee3ng ri\u00eang c\u1ee7a m\u1eabu th\u1eed \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1eb1ng t\u1ef7 s\u1ed1 gi\u1eefa tr\u1ecdng l\u01b0\u1ee3ng m\u1eabu \u1edf tr\u1ea1ng th\u00e1i s\u1ea5y kh\u00f4 ki\u1ec7t v\u00e0 th\u1ec3 t\u00edch m\u1eabu \u1edf tr\u1ea1ng th\u00e1i t\u01b0\u01a1i (ng\u00e2m trong n\u01b0\u1edbc cho \u0111\u1ebfn khi tr\u1ecdng l\u01b0\u1ee3ng m\u1eabu kh\u00f4ng thay \u0111\u1ed5i). C\u00f4ng th\u1ee9c t\u00ednh nh\u01b0 sau:<\/p>\n
Trong \u0111\u00f3:<\/p>\n
\uf072 Kh\u1ed1i l\u01b0\u1ee3ng ri\u00eang, kg\/m3<\/sup><\/p>\n m Tr\u1ecdng l\u01b0\u1ee3ng m\u1eabu sau khi s\u1ea5y kh\u00f4 ki\u1ec7t, g<\/p>\n V Th\u1ec3 t\u00edch c\u1ee7a m\u1eabu \u1edf tr\u1ea1ng th\u00e1i t\u01b0\u01a1i, mm3<\/sup><\/p>\n M\u1eabu th\u1eed chu\u1ea9n l\u00e0 m\u1ed9t l\u00f3ng tre c\u00f3 1 \u0111\u1ed1t nguy\u00ean v\u1eb9n. Chi\u1ec1u d\u00e0i m\u1eabu \u0111\u01b0\u1ee3c t\u00ednh t\u1eeb v\u1ecb tr\u00ed c\u00e1ch v\u00f2ng \u0111\u1ed1t c\u1ee7a l\u00f3ng d\u01b0\u1edbi 10mm \u0111\u1ebfn v\u1ecb tr\u00ed c\u00e1ch v\u00f2ng \u0111\u1ed1t c\u1ee7a l\u00f3ng tr\u00ean 10mm. Tu\u1ef3 thu\u1ed9c v\u00e0o s\u1ed1 l\u01b0\u1ee3ng c\u00e2y m\u1eabu m\u00e0 m\u1eabu th\u00ed nghi\u1ec7m c\u00f3 th\u1ec3 c\u00f3 ti\u1ebft di\u1ec7n ngang b\u1eb1ng ch\u00ednh ti\u1ebft di\u1ec7n ngang th\u00e2n tre ho\u1eb7c nh\u1ecf h\u01a1n. Trong c\u00e1c tr\u01b0\u1eddng h\u1ee3p kh\u00f4ng l\u1ea5y \u0111\u01b0\u1ee3c m\u1eabu chu\u1ea9n do h\u1ea1n ch\u1ebf c\u1ee7a nguy\u00ean li\u1ec7u ho\u1eb7c theo y\u00eau c\u1ea7u th\u00ed nghi\u1ec7m, ta c\u00f3 th\u1ec3 gi\u1ea3m k\u00edch th\u01b0\u1edbc m\u1eabu theo ti\u1ebft di\u1ec7n ngang v\u00e0 ph\u1ea3i \u0111\u1ea3m b\u1ea3o sao cho m\u1eb7t b\u1ed5 d\u1ecdc ph\u1ea3i l\u00e0 m\u1eb7t ph\u1eb3ng xuy\u00ean t\u00e2m, v\u00e1ch ng\u0103n c\u1ee7a \u0111\u1ed1t kh\u00f4ng b\u1ecb v\u1ee1.<\/p>\n <\/p>\n H\u00ecnh 1.<\/b>H\u00ecnh d\u00e1ng m\u1eabu th\u1eed \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh kh\u1ed1i l\u01b0\u1ee3ng ri\u00eang<\/i><\/p>\n Tr\u1ecdng l\u01b0\u1ee3ng m\u1eabu \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p c\u00e2n th\u00f4ng th\u01b0\u1eddng v\u00e0 x\u00e1c \u0111\u1ecbnh th\u1ec3 t\u00edch c\u1ee7a m\u1eabu theo ph\u01b0\u01a1ng ph\u00e1p nh\u00fang n\u01b0\u1edbc (m\u1eabu kh\u00f4ng c\u1ea7n ph\u1ea3i nh\u00fang v\u00e0o dung d\u1ecbch ch\u1ed1ng th\u1ea5m v\u00ec th\u1ec3 t\u00edch c\u1ea7n x\u00e1c \u0111\u1ecbnh l\u00e0 th\u1ec3 t\u00edch c\u1ee7a m\u1eabu t\u01b0\u01a1i).<\/p>\n 2. X\u00e1c \u0111\u1ecbnh \u0111\u1ed9 co r\u00fat<\/b><\/p>\n \u0110\u1ed9 co r\u00fat c\u1ee7a tre \u0111\u01b0\u1ee3c t\u00ednh b\u1eb1ng t\u1ef7 s\u1ed1 ph\u1ea7n tr\u0103m gi\u1eefa hi\u1ec7u s\u1ed1 s\u1ed1 \u0111o k\u00edch th\u01b0\u1edbc tr\u01b0\u1edbc v\u00e0 sau khi s\u1ea5y kh\u00f4 ki\u1ec7t v\u1edbi s\u1ed1 \u0111o k\u00edch th\u01b0\u1edbc tr\u01b0\u1edbc khi s\u1ea5y. C\u00f4ng th\u1ee9c t\u00ednh nh\u01b0 sau:<\/p>\n Trong \u0111\u00f3:<\/p>\n \uf062 \u0110\u1ed9 co r\u00fat, %<\/p>\n aw K\u00edch th\u01b0\u1edbc m\u1eabu tr\u01b0\u1edbc khi s\u1ea5y kh\u00f4 ki\u1ec7t, mm<\/p>\n a0<\/sub> K\u00edch th\u01b0\u1edbc m\u1eabu sau khi s\u1ea5y kho ki\u1ec7t, mm<\/p>\n M\u1eabu th\u1eed chu\u1ea9n l\u00e0 m\u1ed9t l\u00f3ng tre kh\u00f4ng bao g\u1ed3m \u0111\u1ed1t, c\u00f3 chi\u1ec1u d\u00e0i b\u1eb1ng 100mm. Trong tr\u01b0\u1eddng h\u1ee3p do h\u1ea1n ch\u1ebf c\u1ee7a nguy\u00ean li\u1ec7u l\u00e0m m\u1eabu th\u1eed (l\u00f3ng tre ng\u1eafn, s\u1ed1 l\u01b0\u1ee3ng c\u00e2y m\u1eabu \u00edt) ho\u1eb7c theo y\u00eau c\u1ea7u c\u1ee7a th\u00ed nghi\u1ec7m, chi\u1ec1u d\u00e0i m\u1eabu c\u00f3 th\u1ec3 gi\u1ea3m \u0111i. \u0110\u1ed9 co r\u00fat s\u1ebd \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh th\u00f4ng qua c\u00e1c s\u1ed1 \u0111o: 4 l\u1ea7n \u0111o \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i (v\u1ecb tr\u00ed \u0111o c\u00e1ch \u0111\u1ea7u m\u1eabu 10mm), 4 l\u1ea7n \u0111o chi\u1ec1u d\u1ea7y th\u00e0nh l\u00f3ng (m\u1ed7i \u0111\u1ea7u m\u1eabu \u0111o 2 l\u1ea7n) v\u00e0 2 l\u1ea7n \u0111o chi\u1ec1u d\u00e0i. C\u00e1c v\u1ecb tr\u00ed \u0111o \u0111\u01b0\u1ee3c v\u1ea1ch s\u1eb5n nh\u01b0 \u1edf h\u00ecnh 2.<\/p>\n <\/p>\n H\u00ecnh 2.<\/b>C\u00e1c \u0111i\u1ec3m \u0111o tr\u00ean m\u1eabu x\u00e1c \u0111\u1ecbnh \u0111\u1ed9 co r\u00fat<\/i><\/p>\n Chi\u1ec1u d\u00e0i: l1<\/sub>, l2<\/sub>; Chi\u1ec1u d\u1ea7y th\u00e0nh l\u00f3ng: d1<\/sub>, d2<\/sub> v\u00e0 d3<\/sub>, d4<\/sub> \u0111\u01b0\u1ee3c \u0111o \u1edf m\u1eb7t \u0111\u1ed1i di\u1ec7n; N\u01a1i \u0111\u00e1nh d\u1ea5u x l\u00e0 nh\u1eefng \u0111i\u1ec3m c\u00e1ch m\u1eb7t ph\u1eb3ng hai \u0111\u1ea7u m\u1eabu 10mm, \u0111\u1ec3 \u0111\u1eb7t th\u01b0\u1edbc \u0111o \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i c\u1ee7a l\u00f3ng tre. \u0110\u01b0\u1eddng k\u1ebb tr\u00ean hai m\u1eb7t \u0111\u1ea7u c\u1ee7a m\u1eabu vu\u00f4ng g\u00f3c v\u1edbi nhau v\u00e0 song song v\u1edbi nhau t\u1eebng \u0111\u00f4i m\u1ed9t.<\/p>\n \u0110\u1ed9 co r\u00fat c\u1ee7a tre \u0111\u01b0\u1ee3c chia ra l\u00e0m hai lo\u1ea1i: \u0111\u1ed9 co r\u00fat t\u1ed1i \u0111a (\uf062max<\/sub>) k\u00edch th\u01b0\u1edbc ban \u0111\u1ea7u c\u1ee7a m\u1eabu \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh tr\u00ean m\u1eabu th\u1eed \u0111\u00e3 \u0111\u01b0\u1ee3c ng\u00e2m trong n\u01b0\u1edbc \u0111\u1ebfn khi tr\u1ecdng l\u01b0\u1ee3ng kh\u00f4ng \u0111\u1ed5i (tre t\u01b0\u01a1i) v\u00e0 \u0111\u1ed9 co r\u00fat th\u01b0\u1eddng (\uf062w<\/sub>) k\u00edch th\u01b0\u1edbc ban \u0111\u1ea7u c\u1ee7a m\u1eabu \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh tr\u00ean m\u1eabu th\u1eed c\u00f3 \u0111\u1ed9 \u1ea9m th\u0103ng b\u1eb1ng kh\u00f4ng kh\u00ed.<\/p>\n 3. K\u1ebft lu\u1eadn <\/b><\/p>\n T\u1ed5 ch\u1ee9c International Network for Bamboo and Rattan (INBAR) \u0111\u00e3 x\u00e2y d\u1ef1ng ti\u00eau chu\u1ea9n “Determination of physical and mechanical properties of bamboo”, nh\u01b0ng ch\u1ee7 y\u1ebfu \u00e1p d\u1ee5ng trong x\u00e2y d\u1ef1ng v\u1edbi y\u00eau c\u1ea7u ph\u00f2ng th\u00ed nghi\u1ec7m ph\u1ea3i c\u00f3 c\u00e1c d\u1ee5ng c\u1ee5 v\u00e0 h\u1ec7 th\u1ed1ng thi\u1ebft b\u1ecb th\u1eed l\u1edbn. M\u1ed9t s\u1ed1 t\u00e0i li\u1ec7u kh\u00e1c v\u1ec1 ph\u01b0\u01a1ng ph\u00e1p th\u1eed tre c\u1ee7a n\u01b0\u1edbc ngo\u00e0i m\u00e0 ch\u00fang t\u00f4i s\u01b0u t\u1ea7m \u0111\u01b0\u1ee3c h\u1ea7u nh\u01b0 ch\u1ec9 \u0111\u01b0\u1ee3c m\u00f4 t\u1ea3 s\u01a1 s\u00e0i, kh\u00f3 \u00e1p d\u1ee5ng trong ph\u00f2ng th\u00ed nghi\u1ec7m c\u1ee7a Vi\u1ec7n KHLNVN.<\/p>\n Qua tham kh\u1ea3o c\u00e1c t\u00e0i li\u1ec7u, d\u1ef1a tr\u00ean kinh nghi\u1ec7m th\u1ef1c t\u1ebf khi ti\u1ebfn h\u00e0nh th\u00ed nghi\u1ec7m v\u1ec1 t\u00ednh ch\u1ea5t c\u1ee7a tre trong th\u1eddi gian qua, \u0111\u1ed3ng th\u1eddi c\u00f3 xem x\u00e9t \u0111\u1ebfn \u0111i\u1ec1u ki\u1ec7n th\u00ed nghi\u1ec7m c\u1ee7a m\u00ecnh, ch\u00fang t\u00f4i t\u1ea1m th\u1eddi \u0111\u01b0a ra c\u00e1ch th\u1eed \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh kh\u1ed1i l\u01b0\u1ee3ng ri\u00eang v\u00e0 \u0111\u1ed9 co r\u00fat c\u1ee7a th\u00e2n tre ph\u1ee5c v\u1ee5 cho c\u00f4ng t\u00e1c nghi\u00ean c\u1ee9u v\u1ec1 \u0111\u1eb7c t\u00ednh c\u1ee7a tre trong giai \u0111o\u1ea1n hi\u1ec7n nay.<\/p>\n 2- ISO\/DIS-22157 Determination of physical properties of bamboo (International standard)<\/p>\n Bamboo is the very important non-timber product. The research on physical and mechanical properties of bamboo is difficult and there is not standardized testing methods used for scientific research yet. Based on collected documents on bamboo testing methods and the standard on determination of physical and mechanical properties of bamboo of INBAR and practical testing conditions at FSIV we compiled the testing methods to determination of properties of bamboo through small test specimens. We hop to get opinions from readers<\/p>\n","protected":false},"excerpt":{"rendered":" Tre l\u00e0 m\u1ed9t lo\u1ea1i l\u00e2m s\u1ea3n \u0111\u1eb7c bi\u1ec7t, \u0111\u00e3 g\u1eafn b\u00f3 v\u1edbi \u0111\u1eddi s\u1ed1ng nh\u00e2n d\u00e2n ta t\u1eeb r\u1ea5t l\u00e2u. Tre \u0111\u01b0\u1ee3c l\u00e0m d\u1ee5ng c\u1ee5 gia \u0111\u00ecnh, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong x\u00e2y d\u1ef1ng, giao th\u00f4ng v\u1eadn t\u1ea3i, khai th\u00e1c m\u1ecf, s\u1ea3n xu\u1ea5t gi\u1ea5y s\u1ee3i, v\u00e1n nh\u00e2n t\u1ea1o, \u0111\u1ed3 m\u1ed9c, n\u00f4ng c\u1ee5, h\u00e0ng th\u1ee7 c\u00f4ng m\u1ef9 ngh\u1ec7… <\/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\/464"}],"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=464"}],"version-history":[{"count":3,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/464\/revisions"}],"predecessor-version":[{"id":19131,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/464\/revisions\/19131"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=464"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=464"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=464"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}\n\n
\n a) H\u00ecnh d\u00e1ng m\u1eabu chu\u1ea9n<\/i><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n \n\n
\n b) M\u1eabu gi\u1ea3m ti\u1ebft di\u1ec7n ngang b\u1eb1ng c\u00e1ch b\u1ed5 d\u1ecdc<\/i><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n T\u00e0i li\u1ec7u tham kh\u1ea3o ch\u00ednh<\/h1>\n
1- The Research Institute of Subtropical Forestry<\/h1>\n
The ChineseAcademyof Forest<\/h1>\n
Cultivation & Utilization on Bamboos, 1996, Tr. 76-78<\/h1>\n
Summary<\/i><\/h5>\n