{"id":9726,"date":"2012-02-09T07:35:54","date_gmt":"2012-02-09T00:35:54","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/2012\/02\/nghien-cuu-chon-cay-troi-nhan-giong-keo-tai-tuong-phuc-vu-trong-rung-cung-cap-go-gia-dung\/"},"modified":"2013-10-06T09:02:34","modified_gmt":"2013-10-06T02:02:34","slug":"nghien-cuu-chon-cay-troi-nhan-giong-keo-tai-tuong-phuc-vu-trong-rung-cung-cap-go-gia-dung","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/nghien-cuu-chon-cay-troi-nhan-giong-keo-tai-tuong-phuc-vu-trong-rung-cung-cap-go-gia-dung\/","title":{"rendered":"Nghi\u00ean c\u1ee9u ch\u1ecdn c\u00e2y tr\u1ed9i, nh\u00e2n gi\u1ed1ng Keo tai t\u01b0\u1ee3ng ph\u1ee5c v\u1ee5 tr\u1ed3ng r\u1eebng cung c\u1ea5p g\u1ed7 gia d\u1ee5ng"},"content":{"rendered":"

Nguy\u1ec5n Minh Ch\u00ed, Nguy\u1ec5n Vi\u1ec7t C\u01b0\u1eddng<\/strong> <\/p>\n

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

Nguy\u1ec5n \u0110\u1ee9c H\u1ea3i <\/strong> <\/p>\n

Trung t\u00e2m Khuy\u1ebfn n\u00f4ng Khuy\u1ebfn ng\u01b0 Qu\u1ed1c Gia<\/em> <\/p>\n

T\u00d3M T\u1eaeT<\/strong> <\/p>\n

Nghi\u00ean c\u1ee9u ch\u1ecdn c\u00e2y tr\u1ed9i Keo tai t\u01b0\u1ee3ng theo h\u01b0\u1edbng cung c\u1ea5p g\u1ed7 gia d\u1ee5ng v\u00e0 c\u1eaft t\u1ea1o ch\u1ed3i, nh\u00e2n gi\u1ed1ng c\u00e1c c\u00e2y tr\u1ed9i \u1edf tu\u1ed5i 10-13 t\u1ea1i 5 l\u00e2m tr\u01b0\u1eddng \u1edf Tuy\u00ean Quang \u0111\u00e3 \u0111\u1ea1t \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 kh\u1ea3 quan. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u c\u1eaft t\u1ea1o ch\u1ed3i cho th\u1ea5y c\u1eaft c\u00e0nh d\u01b0\u1edbi t\u00e1n v\u00e0 c\u1eaft c\u1ee5t ng\u1ecdn cho t\u1ef7 l\u1ec7 ra ch\u1ed3i cao, \u0111\u1ea1t t\u1eeb 82,6% \u0111\u1ebfn 90,9%. C\u00e1c nghi\u00ean c\u1ee9u v\u1ec1 nh\u00e2n gi\u1ed1ng cho k\u1ebft qu\u1ea3 t\u1ed1t, m\u1ed9t s\u1ed1 d\u00f2ng c\u00f3 t\u1ef7 l\u1ec7 ra r\u1ec5 kh\u00e1 cao nh\u01b0 K83 C<\/sub>, K98 C<\/sub>, K101<\/sub> v\u00e0 K102<\/sub> v\u1edbi t\u1ef7 l\u1ec7 hom ra r\u1ec5 tr\u00ean 80%. V\u1ecb tr\u00ed l\u1ea5y hom \u1edf d\u01b0\u1edbi t\u00e1n c\u00f3 t\u1ef7 l\u1ec7 ra r\u1ec5 cao h\u01a1n \u1edf ph\u00eda tr\u00ean ng\u1ecdn. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u v\u1ec1 t\u00ednh ch\u1ea5t c\u01a1 l\u00fd g\u1ed7 cho th\u1ea5y m\u1ee9c \u0111\u1ed9 bi\u1ebfn d\u1ecb v\u1ec1kh\u1ed1i l\u01b0\u1ee3ngth\u1ec3t\u00edch gi\u1eefa c\u00e1c d\u00f2ng \u0111\u01b0\u1ee3c ch\u1ecdn l\u1ecdc l\u1edbn, t\u1eeb 580 kg\/m3<\/sup> \u0111\u1ebfn 798 kg\/m3<\/sup>. <\/p>\n

T\u1eeb kh\u00f3a:<\/strong> C\u1eaft t\u1ea1o ch\u1ed3i, C\u00e2y tr\u1ed9i, G\u1ed7 gia d\u1ee5ng. <\/p>\n

M\u1ede \u0110\u1ea6U<\/strong> <\/p>\n

Keo tai t\u01b0\u1ee3ng (Acacia mangium <\/em>Wild) l\u00e0 lo\u00e0i c\u00e2y c\u00f3 nhi\u1ec1u \u01b0u \u0111i\u1ec3m, c\u00f3 th\u1ec3 tr\u1ed3ng \u0111\u01b0\u1ee3c tr\u00ean nhi\u1ec1u v\u00f9ng sinh th\u00e1i kh\u00e1c nhau tr\u00ean c\u1ea3 n\u01b0\u1edbc v\u00e0 sinh tr\u01b0\u1edfng t\u1ed1t \u1edf nh\u1eefng v\u00f9ng c\u00f3 l\u01b0\u1ee3ng m\u01b0a t\u01b0\u01a1ng \u0111\u1ed1i cao. N\u0103ng su\u1ea5t c\u00f3 th\u1ec3 \u0111\u1ea1t 29 m3<\/sup>\/ha\/n\u0103m (Ph\u00fa T\u00e2n – B\u00ecnh D\u01b0\u01a1ng) v\u00e0 30 m3<\/sup>\/ha\/n\u0103m (M\u00e3 \u0110\u00e0 – \u0110\u1ed3ng Nai) trong khi n\u0103ng su\u1ea5t c\u1ee7a r\u1eebng nhi\u1ec7t \u0111\u1edbi t\u1ef1 nhi\u00ean ch\u1ec9 \u0111\u1ea1t 2 – 3 m3<\/sup>\/ha\/n\u0103m. <\/p>\n

Nhu c\u1ea7u s\u1eed d\u1ee5ng g\u1ed7 gia d\u1ee5ng \u1edf trong n\u01b0\u1edbc v\u00e0 xu\u1ea5t kh\u1ea9u ng\u00e0y c\u00e0ng t\u0103ng nh\u01b0ng kh\u1ea3 n\u0103ng cung c\u1ea5p g\u1ed7 nguy\u00ean li\u1ec7u c\u00f2n r\u1ea5t h\u1ea1n ch\u1ebf. Theo b\u00e1o c\u00e1o k\u1ebft qu\u1ea3 th\u1ef1c hi\u1ec7n d\u1ef1 \u00e1n tr\u1ed3ng m\u1edbi 5 tri\u1ec7u ha r\u1eebng giai \u0111o\u1ea1n 1998 – 2005, ngu\u1ed3n g\u1ed7 khai th\u00e1c t\u1eeb r\u1eebng t\u1ef1 nhi\u00ean v\u00e0 r\u1eebng tr\u1ed3ng hi\u1ec7n ch\u1ec9 \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c m\u1ed9t ph\u1ea7n nhu c\u1ea7u thi\u1ebft y\u1ebfu trong n\u01b0\u1edbc, c\u00f2n ph\u1ea7n l\u1edbn ph\u1ea3i nh\u1eadp kh\u1ea9u, t\u1eeb 2 – 2,5 tri\u1ec7u m3<\/sup> g\u1ed7 (chi\u1ebfm tr\u00ean 80%). <\/p>\n

Trong xu th\u1ebf ph\u00e1t tri\u1ec3n v\u00e0 h\u1ed9i nh\u1eadp c\u1ee7a n\u1ec1n kinh t\u1ebf n\u01b0\u1edbc ta, nhu c\u1ea7u v\u1ec1 c\u00e1c s\u1ea3n ph\u1ea9m t\u1eeb r\u1eebng tr\u1ed3ng, \u0111\u1eb7c bi\u1ec7t l\u00e0 g\u1ed7 x\u1ebb t\u0103ng nhanh. Theo d\u1ef1 b\u00e1o trong chi\u1ebfn l\u01b0\u1ee3c ph\u00e1t tri\u1ec3n l\u00e2m nghi\u1ec7p, nhu c\u1ea7u g\u1ed7 l\u1edbn trong c\u00f4ng nghi\u1ec7p v\u00e0 d\u00e2n d\u1ee5ng n\u0103m 2010 kho\u1ea3ng 8 tri\u1ec7u m3<\/sup> v\u00e0 \u0111\u1ebfn n\u0103m 2020 kho\u1ea3ng 12 tri\u1ec7u m3<\/sup>. <\/p>\n

Hi\u1ec7n nay, g\u1ed7 Keo tai t\u01b0\u1ee3ng \u0111ang r\u1ea5t \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng trong s\u1ea3n xu\u1ea5t \u0111\u1ed3 gia d\u1ee5ng c\u1ea3 \u1edf trong n\u01b0\u1edbc v\u00e0 xu\u1ea5t kh\u1ea9u nh\u01b0ng kh\u1ea3 n\u0103ng cung c\u1ea5p g\u1ed7 x\u1ebb cho th\u1ecb tr\u01b0\u1eddng l\u1ea1i r\u1ea5t h\u1ea1n ch\u1ebf. Do v\u1eady, vi\u1ec7c “Ch\u1ecdn l\u1ecdc c\u00e2y tr\u1ed9i, nh\u00e2n gi\u1ed1ng Keo tai t\u01b0\u1ee3ng ph\u1ee5c v\u1ee5 tr\u1ed3ng r\u1eebng cung c\u1ea5p g\u1ed7 gia d\u1ee5ng” nh\u1eb1m ch\u1ecdn l\u1ecdc m\u1ed9t s\u1ed1 d\u00f2ng Keo tai t\u01b0\u1ee3ng c\u00f3 t\u1ef7 tr\u1ecdng g\u1ed7 cao, sinh tr\u01b0\u1edfng t\u01b0\u01a1ng \u0111\u1ed1i nhanh ph\u1ee5c v\u1ee5 tr\u1ed3ng r\u1eebng cung c\u1ea5p g\u1ed7 gia d\u1ee5ng l\u00e0 r\u1ea5t c\u1ea7n thi\u1ebft. <\/p>\n","protected":false},"excerpt":{"rendered":"

\nNghiên c\u1ee9u ch\u1ecdn cây tr\u1ed9i Keo tai t\u01b0\u1ee3ng theo h\u01b0\u1edbng cung c\u1ea5p g\u1ed7 gia d\u1ee5ng và c\u1eaft t\u1ea1o ch\u1ed3i, nhân gi\u1ed1ng các cây tr\u1ed9i \u1edf tu\u1ed5i 10-13 t\u1ea1i 5 lâm tr\u01b0\u1eddng \u1edf Tuyên Quang \u0111ã \u0111\u1ea1t \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 kh\u1ea3 quan. K\u1ebft qu\u1ea3 nghiên c\u1ee9u c\u1eaft t\u1ea1o ch\u1ed3i cho th\u1ea5y c\u1eaft cành d\u01b0\u1edbi tán và c\u1eaft c\u1ee5t ng\u1ecdn cho t\u1ef7 l\u1ec7 ra ch\u1ed3i cao, \u0111\u1ea1t t\u1eeb 82,6% \u0111\u1ebfn 90,9%.<\/span>\n<\/div>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[13],"tags":[],"_links":{"self":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9726"}],"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=9726"}],"version-history":[{"count":1,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9726\/revisions"}],"predecessor-version":[{"id":11179,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9726\/revisions\/11179"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=9726"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=9726"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=9726"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}