{"id":9486,"date":"2010-12-06T06:23:24","date_gmt":"2010-12-05T23:23:24","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/2010\/12\/nghien-cu-su-dung-go-bach-dan-urophylla-de-san-xuat-go-xe-dong-do-moc\/"},"modified":"2013-10-06T09:02:07","modified_gmt":"2013-10-06T02:02:07","slug":"nghien-cu-su-dung-go-bach-dan-urophylla-de-san-xuat-go-xe-dong-do-moc","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/nghien-cu-su-dung-go-bach-dan-urophylla-de-san-xuat-go-xe-dong-do-moc\/","title":{"rendered":"Nghi\u00ean c\u1ee9 s\u1eed d\u1ee5ng g\u1ed7 B\u1ea1ch \u0111\u00e0n Urophylla \u0111\u1ec3 s\u1ea3n xu\u1ea5t g\u1ed7 x\u1ebb \u0111\u00f3ng \u0111\u1ed3 m\u1ed9c"},"content":{"rendered":"

Nguy\u1ec5n Quang Trung<\/strong> <\/p>\n

Trung t\u00e2m Nghi\u00ean c\u1ee9u v\u00e0 CGCN C\u00f4ng nghi\u1ec7p r\u1eebng<\/em> <\/p>\n

Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam<\/em> <\/p>\n

I.<\/strong> \u0110\u1eb6T V\u1ea4N \u0110\u1ec0<\/strong> <\/p>\n

B\u1ea1ch \u0111\u00e0n urophylla (E. urophylla<\/em>) l\u00e0 m\u1ed9t trong c\u00e1c lo\u00e0i c\u00e2y tr\u1ed3ng r\u1eebng ch\u00ednh trong ch\u01b0\u01a1ng tr\u00ecnh tr\u1ed3ng r\u1eebng 5 tri\u1ec7u ha \u1edf Vi\u1ec7t Nam hi\u1ec7n nay. Di\u1ec7n t\u00edch r\u1eebng B\u1ea1ch \u0111\u00e0n urophylla \u0111\u01b0\u1ee3c tr\u1ed3ng t\u1eadp trung v\u00e0 ph\u00e2n t\u00e1n tr\u00ean c\u1ea3 n\u01b0\u1edbc ng\u00e0y c\u00e0ng t\u0103ng, nh\u01b0ng th\u1ef1c tr\u1ea1ng s\u1eed d\u1ee5ng g\u1ed7 b\u1ea1ch \u0111\u00e0n n\u00f3i chungch\u01b0a t\u01b0\u01a1ng x\u1ee9ng v\u1edbi ti\u1ec1m n\u0103ng to l\u1edbn c\u1ee7a ngu\u1ed3n nguy\u00ean li\u1ec7u n\u00e0y. G\u1ed7 b\u1ea1ch \u0111\u00e0n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ch\u1ee7 y\u1ebfu l\u00e0m nguy\u00ean li\u1ec7u s\u1ea3n xu\u1ea5t d\u0103m g\u1ed7 cho c\u00f4ng nghi\u1ec7p gi\u1ea5y, s\u1ea3n xu\u1ea5t v\u00e1n d\u0103m, v\u00e1n MDF v\u00e0 xu\u1ea5t kh\u1ea9u d\u0103m g\u1ed7 (tr\u00ean 70% s\u1ea3n l\u01b0\u1ee3ng khai th\u00e1c h\u00e0ng n\u0103m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho m\u1ee5c \u0111\u00edch n\u00e0y), kho\u1ea3ng 20% l\u01b0\u1ee3ng g\u1ed7 khai th\u00e1c h\u00e0ng n\u0103m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng d\u01b0\u1edbi d\u1ea1ng g\u1ed7 tr\u00f2n (c\u1ed9t ch\u1ed1ng trong khai th\u00e1c m\u1ecf, l\u00e0m v\u1eadt li\u1ec7u x\u00e2y d\u1ef1ng..) ch\u1ec9 kho\u1ea3ng 10% l\u01b0\u1ee3ng g\u1ed7 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho s\u1ea3n xu\u1ea5t g\u1ed7 x\u1ebb l\u00e0m nguy\u00ean li\u1ec7u \u0111\u00f3ng \u0111\u1ed3 m\u1ed9c, trong khi ng\u00e0nh c\u00f4ng nghi\u1ec7p ch\u1ebf bi\u1ebfn \u0111\u1ed3 m\u1ed9c ph\u1ea3i nh\u1eadp t\u1edbi tr\u00ean 80% nguy\u00ean li\u1ec7u g\u1ed7 tr\u00f2n v\u00e0 g\u1ed7 x\u1ebb t\u1eeb n\u01b0\u1edbc ngo\u00e0i. <\/p>\n

So s\u00e1nh v\u1edbi c\u00e1c lo\u1ea1i g\u1ed7 r\u1eebng tr\u1ed3ng kh\u00e1c nh\u01b0: c\u00e1c lo\u1ea1i g\u1ed7 keo, g\u1ed7 th\u00f4ng, g\u1ed7 cao su… vi\u1ec7c s\u1eed d\u1ee5ng g\u1ed7 b\u1ea1ch \u0111\u00e0n n\u00f3i chung, b\u1ea1ch \u0111\u00e0n urophylla n\u00f3i ri\u00eang trong ch\u1ebf bi\u1ebfn \u0111\u1ed3 m\u1ed9c g\u1eb7p nhi\u1ec1u kh\u00f3 kh\u0103n h\u01a1n. Tr\u1edf ng\u1ea1i ch\u00ednh trong s\u1ea3n xu\u1ea5t g\u1ed7 x\u1ebb b\u1ea1ch \u0111\u00e0n l\u00e0 hi\u1ec7n t\u01b0\u1ee3ng n\u1ee9t \u0111\u1ea7u (c\u1ea3 g\u1ed7 tr\u00f2n v\u00e0 g\u1ed7 x\u1ebb), hi\u1ec7n t\u01b0\u1ee3ng cong v\u00eanh, co ng\u00f3t c\u1ee7a v\u00e1n x\u1ebb trong qu\u00e1 tr\u00ecnh hong ph\u01a1i v\u00e0 s\u1ea5y g\u1ed7d\u1eabn \u0111\u1ebfn t\u1ec9 l\u1ec7 s\u1eed d\u1ee5ng g\u1ed7 th\u1ea5p. \u0110\u00e2y l\u00e0 nh\u1eefng l\u00ed do m\u00e0 c\u00e1c x\u01b0\u1edfng x\u1ebb ch\u01b0a ho\u1eb7c kh\u00f4ng th\u00edch s\u1eed d\u1ee5ng nguy\u00ean li\u1ec7u g\u1ed7 b\u1ea1ch \u0111\u00e0n, do v\u1eady l\u01b0\u1ee3ng g\u1ed7 b\u1ea1ch \u0111\u00e0n \u0111\u01b0\u1ee3c d\u00f9ng cho s\u1ea3n xu\u1ea5t g\u1ed7 x\u1ebb \u0111\u00f3ng \u0111\u1ed3 m\u1ed9c th\u1ea5p h\u01a1nnhi\u1ec1u so v\u1edbi c\u00e1c lo\u1ea1i g\u1ed7 keo, th\u00f4ng, cao su;v\u00e0 c\u0169ng v\u00ec th\u1ebf m\u00e0 gi\u00e1 b\u00e1n g\u1ed7b\u1ea1ch \u0111\u00e0n l\u00e0m nguy\u00ean li\u1ec7u g\u1ed7 x\u1ebb th\u01b0\u1eddng th\u1ea5p h\u01a1n so v\u1edbi c\u00e1c lo\u00e0i g\u1ed7 kh\u00e1c. \u0110\u00f3 ch\u00ednh l\u00e0 l\u00ed do m\u00e0 h\u1ea7u h\u1ebft c\u00e1c ch\u1ee7 r\u1eebng kh\u00f4ng mu\u1ed1n \u0111\u1ea7u t\u01b0 kinh doanh r\u1eebng tr\u1ed3ng b\u1ea1ch \u0111\u00e0n l\u00e0m nguy\u00ean li\u1ec7u g\u1ed7 x\u1ebb m\u1eb7c d\u00f9 g\u1ed7 b\u1ea1ch \u0111\u00e0n c\u00f3 nhi\u1ec1u \u0111\u1eb7c t\u00ednh c\u01a1 h\u1ecdc, v\u1eadt l\u00ed t\u01b0\u01a1ng \u0111\u01b0\u01a1ng, th\u1eadm ch\u00ed cao h\u01a1n m\u1ed9t s\u1ed1 lo\u00e0i g\u1ed7 kh\u00e1c. <\/p>\n

(K\u1ef7 y\u1ebfu H\u1ed9i ngh\u1ecb Khoa h\u1ecdc C\u00f4ng ngh\u1ec7 L\u00e2m nghi\u1ec7p ph\u00eda B\u1eafc, trang 619-630)<\/em> <\/p>\n","protected":false},"excerpt":{"rendered":"

\nB\u1ea1ch \u0111àn urophylla (E. urophylla<\/em>) là m\u1ed9t trong các loài cây tr\u1ed3ng r\u1eebng chính trong ch\u01b0\u01a1ng trình tr\u1ed3ng r\u1eebng 5 tri\u1ec7u ha \u1edf Vi\u1ec7t Nam hi\u1ec7n nay. Di\u1ec7n tích r\u1eebng B\u1ea1ch \u0111àn urophylla \u0111\u01b0\u1ee3c tr\u1ed3ng t\u1eadp trung và phân tán trên c\u1ea3 n\u01b0\u1edbc ngày càng t\u0103ng, nh\u01b0ng th\u1ef1c tr\u1ea1ng s\u1eed d\u1ee5ng g\u1ed7 b\u1ea1ch \u0111àn nói chung  <\/span>ch\u01b0a t\u01b0\u01a1ng x\u1ee9ng v\u1edbi ti\u1ec1m n\u0103ng to l\u1edbn c\u1ee7a ngu\u1ed3n nguyên li\u1ec7u này. G\u1ed7 b\u1ea1ch \u0111àn \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ch\u1ee7 y\u1ebfu làm nguyên li\u1ec7u s\u1ea3n xu\u1ea5t d\u0103m g\u1ed7 cho công nghi\u1ec7p gi\u1ea5y, s\u1ea3n xu\u1ea5t ván d\u0103m, ván MDF và xu\u1ea5t kh\u1ea9u d\u0103m g\u1ed7 (trên 70% s\u1ea3n l\u01b0\u1ee3ng khai thác hàng n\u0103m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho m\u1ee5c \u0111ích này), kho\u1ea3ng 20% l\u01b0\u1ee3ng g\u1ed7 khai thác hàng n\u0103m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng d\u01b0\u1edbi d\u1ea1ng g\u1ed7 tròn (c\u1ed9t ch\u1ed1ng trong khai thác m\u1ecf, làm v\u1eadt li\u1ec7u xây d\u1ef1ng..) ch\u1ec9 kho\u1ea3ng 10% l\u01b0\u1ee3ng g\u1ed7 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho s\u1ea3n xu\u1ea5t g\u1ed7 x\u1ebb làm nguyên li\u1ec7u \u0111óng \u0111\u1ed3 m\u1ed9c, trong khi ngành công nghi\u1ec7p ch\u1ebf bi\u1ebfn \u0111\u1ed3 m\u1ed9c ph\u1ea3i nh\u1eadp t\u1edbi trên 80% nguyên li\u1ec7u g\u1ed7 tròn và g\u1ed7 x\u1ebb t\u1eeb n\u01b0\u1edbc ngoài.<\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[11],"tags":[],"_links":{"self":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9486"}],"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=9486"}],"version-history":[{"count":1,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9486\/revisions"}],"predecessor-version":[{"id":10940,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9486\/revisions\/10940"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=9486"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=9486"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=9486"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}