{"id":9399,"date":"2010-08-10T01:45:57","date_gmt":"2010-08-09T18:45:57","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/2010\/08\/xac-dinh-duong-kinh-khai-thac-toi-thieu-cho-mot-so-loai-cay-go-kinh-doanh-chu-yeu-o-khu-vuc-kon-ha-nung\/"},"modified":"2015-05-19T14:34:20","modified_gmt":"2015-05-19T07:34:20","slug":"xac-dinh-duong-kinh-khai-thac-toi-thieu-cho-mot-so-loai-cay-go-kinh-doanh-chu-yeu-o-khu-vuc-kon-ha-nung","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/xac-dinh-duong-kinh-khai-thac-toi-thieu-cho-mot-so-loai-cay-go-kinh-doanh-chu-yeu-o-khu-vuc-kon-ha-nung\/","title":{"rendered":"X\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1eddng k\u00ednh khai th\u00e1c t\u1ed1i thi\u1ec3u cho m\u1ed9t s\u1ed1 lo\u00e0i c\u00e2y g\u1ed7 kinh doanh ch\u1ee7 y\u1ebfu \u1edf khu v\u1ef1c Kon H\u00e0 N\u1eebng"},"content":{"rendered":"

L\u1ea1i Thanh H\u1ea3i<\/strong><\/em><\/p>\n

Trung t\u00e2m \u1ee8ng d\u1ee5ng KHKT L\u00e2m nghi\u1ec7p<\/em>Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam<\/em><\/strong><\/p>\n

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

B\u00e0i b\u00e1o tr\u00ecnh b\u00e0y k\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u v\u1ec1 c\u1ea5u tr\u00fac t\u1ed5 th\u00e0nh lo\u00e0i, qui lu\u1eadt sinh tr\u01b0\u1edfng \u0111\u01b0\u1eddng k\u00ednh v\u00e0 ph\u00e2n b\u1ed1 s\u1ed1 lo\u00e0i theo c\u1ee1 k\u00ednh \u0111\u1ec3 l\u00e0m c\u01a1 s\u1edf khoa h\u1ecdc cho vi\u1ec7c x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1eddng k\u00ednh khai th\u00e1c t\u1ed1i thi\u1ec3u theo lo\u00e0i ho\u1eb7c nh\u00f3m lo\u00e0i c\u00e2y g\u1ed7 kinh doanh ch\u1ee7 y\u1ebfu trong r\u1eebng t\u1ef1 nhi\u00ean l\u00e1 r\u1ed9ng th\u01b0\u1eddng xanh \u1edf khu v\u1ef1c Kon H\u00e0 N\u1eebng. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u cho th\u1ea5y, c\u00e1c lo\u00e0i c\u00e2y: Xoay, V\u1ea1ng, Gi\u1ebb, Gi\u1ed5i, C\u00f3c \u0111\u00e1 \u0111\u1ea1t k\u00edch th\u01b0\u1edbc t\u1ed1i \u0111a t\u1eeb c\u1ea5p k\u00ednh 80cm tr\u1edf l\u00ean, trong khi c\u00e1c lo\u00e0i: Dung, G\u1ea1c nai, \u0110\u1ebbn, Ho\u1eafc quang… hi\u1ebfm khi \u0111\u1ea1t \u0111\u1ebfn k\u00edch th\u01b0\u1edbc tr\u00ean 50cm v\u00e0 c\u00e1c lo\u00e0i Tr\u00e2m, Nh\u1ecdc, G\u1ed9i, \u2026 th\u01b0\u1eddng c\u00f3 k\u00edch th\u01b0\u1edbc ph\u1ed5 bi\u1ebfn \u1edf c\u1ea5p k\u00ednh 50- 66cm. \u0110\u00e2y ch\u00ednh l\u00e0 nh\u1eefng lo\u00e0i chi\u1ebfm \u01b0u th\u1ebf v\u00e0 th\u01b0\u1eddng xuy\u00ean th\u1ea5y xu\u1ea5t hi\u1ec7n trong t\u1ed5 th\u00e0nh c\u1ee7a c\u00e1c tr\u1ea1ng th\u00e1i r\u1eebng. C\u00f3 th\u1ec3chia c\u00e1c lo\u00e0i c\u00e2y trong r\u1eebng t\u1ef1 nhi\u00ean th\u00e0nh 3 nh\u00f3m theo h\u00e0nh vi sinh tr\u01b0\u1edfng c\u1ee7a ch\u00fang. (i)Nh\u00f3m I: C\u00e1c lo\u00e0i c\u00e2y \u01b0a b\u00f3ng giai \u0111o\u1ea1n \u0111\u1ea7u, sinh tr\u01b0\u1edfng chi\u1ec1u cao trong 10 n\u0103m \u0111\u1ea7u r\u1ea5t ch\u1eadm sau \u0111\u00f3 t\u0103ng d\u1ea7n l\u00ean khi v\u01b0\u1ee3t l\u00ean \u0111\u01b0\u1ee3c t\u1ea7ng c\u00e2y cao \u0111\u1ec3 tr\u1edf th\u00e0nh t\u1ea7ng tr\u1ed9i. \u0110\u00f3 l\u00e0 c\u00e1c lo\u00e0i: Xoay, Ch\u00f2, C\u1ed3ng, Th\u1ea1ch \u0111\u1ea3m, Gi\u1ebb v\u00e0 Ho\u00e0ng \u0111\u00e0n. (ii)Nh\u00f3m II: C\u00e1c lo\u00e0i c\u00e2y ch\u1ecbu b\u00f3ng nh\u1eb9 (trung t\u00ednh) giai \u0111o\u1ea1n \u0111\u1ea7u, sinh tr\u01b0\u1edfng chi\u1ec1u cao \u1edf 10 n\u0103m \u0111\u1ea7u trung b\u00ecnh v\u00e0 t\u0103ng l\u00ean \u1edf giai \u0111o\u1ea1n sau\u0111\u1ea1t t\u1ea7ng c\u00e2y cao \u1edf tu\u1ed5i th\u00e0nh th\u1ee5c. \u0110\u00f3 l\u00e0 c\u00e1c lo\u00e0i: Re, V\u1ea1ng, V\u00e0ng t\u00e2m, Tr\u00e1m, S\u1ebfn, G\u1ed9i, Gi\u1ed5i v\u00e0 C\u00f3c \u0111\u00e1. (iii)Nh\u00f3m III: C\u00e1c lo\u00e0i c\u00e2y \u01b0a s\u00e1ng, sinh tr\u01b0\u1edfng chi\u1ec1u cao giai \u0111o\u1ea1n \u0111\u1ea7u r\u1ea5t nhanh sau \u0111\u00f3 ch\u1eadm l\u1ea1i v\u00e0 d\u1eebng l\u1ea1i \u1edf t\u1ea7ng gi\u1eefa c\u1ee7a r\u1eebng \u1ed5n \u0111\u1ecbnh. \u0110\u00f3 l\u00e0 c\u00e1c lo\u00e0i: B\u1eddi l\u1eddi, Ch\u00e2n chim, B\u1ee9a, C\u00f4m, G\u00e1o, v\u00e0 Tr\u00e2m. Tr\u00ean c\u01a1 s\u1edf c\u00e1c k\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u. \u0111\u00e3 \u0111\u1ec1 xu\u1ea5t \u0111\u01b0\u1eddng k\u00ednh khai th\u00e1c t\u1ed1i thi\u1ec3u cho c\u00e1c lo\u00e0i thu\u1ed9c nh\u00f3m I: l\u00e0 60 (65) cm; thu\u1ed9c nh\u00f3m II l\u00e0 55cm v\u00e0 thu\u1ed9c nh\u00f3m III l\u00e0 30cm.<\/p>\n

T\u1eeb kho\u00e1:<\/strong> C\u1ea5u tr\u00fac t\u1ed5 th\u00e0nh, Qui lu\u1eadt t\u0103ng tr\u01b0\u1edfng \u0111\u01b0\u1eddng k\u00ednh, Ph\u00e2n b\u1ed1 lo\u00e0i theo c\u1ee1 k\u00ednh, \u0110\u01b0\u1eddng k\u00ednh khai th\u00e1c t\u1ed1i thi\u1ec3u.<\/p>\n

(Trang 1176-1186)<\/p>\n","protected":false},"excerpt":{"rendered":"

\nBài báo trình bày k\u1ebft qu\u1ea3 nghiên c\u1ee9u v\u1ec1 c\u1ea5u trúc t\u1ed5 thành loài, qui lu\u1eadt sinh tr\u01b0\u1edfng \u0111\u01b0\u1eddng kính và phân b\u1ed1 s\u1ed1 loài theo c\u1ee1 kính \u0111\u1ec3 làm c\u01a1 s\u1edf khoa h\u1ecdc cho vi\u1ec7c xác \u0111\u1ecbnh \u0111\u01b0\u1eddng kính khai thác t\u1ed1i thi\u1ec3u theo loài ho\u1eb7c nhóm loài cây g\u1ed7 kinh doanh ch\u1ee7 y\u1ebfu trong r\u1eebng t\u1ef1 nhiên lá r\u1ed9ng th\u01b0\u1eddng xanh \u1edf khu v\u1ef1c Kon Hà N\u1eebng. K\u1ebft qu\u1ea3 nghiên c\u1ee9u cho th\u1ea5y, các loài cây: Xoay, V\u1ea1ng, Gi\u1ebb, Gi\u1ed5i, Cóc \u0111á \u0111\u1ea1t kích th\u01b0\u1edbc t\u1ed1i \u0111a t\u1eeb c\u1ea5p kính 80cm tr\u1edf lên, trong khi các loài: Dung, G\u1ea1c nai, \u0110\u1ebbn, Ho\u1eafc quang… hi\u1ebfm khi \u0111\u1ea1t \u0111\u1ebfn kích th\u01b0\u1edbc trên 50cm và các loài Trâm, Nh\u1ecdc, G\u1ed9i, … th\u01b0\u1eddng có kích th\u01b0\u1edbc ph\u1ed5 bi\u1ebfn \u1edf c\u1ea5p kính 50- 66cm. \u0110ây chính là nh\u1eefng loài chi\u1ebfm \u01b0u th\u1ebf và th\u01b0\u1eddng xuyên th\u1ea5y xu\u1ea5t hi\u1ec7n trong t\u1ed5 thành c\u1ee7a các tr\u1ea1ng thái r\u1eebng.<\/span> Có th\u1ec3  <\/span>chia các loài cây trong r\u1eebng t\u1ef1 nhiên thành 3 nhóm theo hành vi sinh tr\u01b0\u1edfng c\u1ee7a chúng. (i)<\/span> <\/span>Nhóm I: Các loài cây \u01b0a bóng giai \u0111o\u1ea1n \u0111\u1ea7u, sinh tr\u01b0\u1edfng chi\u1ec1u cao trong 10 n\u0103m \u0111\u1ea7u r\u1ea5t ch\u1eadm sau \u0111ó t\u0103ng d\u1ea7n lên khi v\u01b0\u1ee3t lên \u0111\u01b0\u1ee3c t\u1ea7ng cây cao \u0111\u1ec3 tr\u1edf thành t\u1ea7ng tr\u1ed9i. <\/span><\/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\/9399"}],"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=9399"}],"version-history":[{"count":2,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9399\/revisions"}],"predecessor-version":[{"id":15279,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9399\/revisions\/15279"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=9399"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=9399"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=9399"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}