{"id":9006,"date":"2009-04-20T08:14:59","date_gmt":"2009-04-20T01:14:59","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/2009\/04\/sinh-khoi-cay-keo-lai-hybrid-acacia-trong-tai-phuong-long-binh-quan-9-thanh-pho-ho-chi-minh\/"},"modified":"2013-10-06T09:01:05","modified_gmt":"2013-10-06T02:01:05","slug":"sinh-khoi-cay-keo-lai-hybrid-acacia-trong-tai-phuong-long-binh-quan-9-thanh-pho-ho-chi-minh","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/sinh-khoi-cay-keo-lai-hybrid-acacia-trong-tai-phuong-long-binh-quan-9-thanh-pho-ho-chi-minh\/","title":{"rendered":"Sinh kh\u1ed1i c\u00e2y Keo lai (Hybrid Acacia) tr\u1ed3ng t\u1ea1i ph\u01b0\u1eddng Long B\u00ecnh – qu\u1eadn 9 – th\u00e0nh ph\u1ed1 H\u1ed3 Ch\u00ed Minh"},"content":{"rendered":"\n

Vi\u00ean Ng\u1ecdc <\/strong>Nam<\/strong>, Phan H\u1ed3ng Nh\u1eadt<\/strong> <\/p>\n

\u0110\u1ea1i h\u1ecdc N\u00f4ng L\u00e2m TP. H\u1ed3 Ch\u00ed Minh<\/em><\/em> <\/p>\n

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

R\u1eebng Keo lai tr\u1ed3ng tr\u00ean \u0111\u1ea5t tho\u00e1i ho\u00e1 c\u1ee7a khu v\u1ef1c ph\u01b0\u1eddng Long B\u00ecnh – qu\u1eadn 9 – th\u00e0nh ph\u1ed1 H\u1ed3 Ch\u00ed Minh cho th\u1ea5y sinh kh\u1ed1i c\u1ee7a Keo lai tr\u1ed3ng \u0111\u1ea1t 46,69 \u00b1 5,11 t\u1ea5n\/ha \u1edf tu\u1ed5i 5, sinh kh\u1ed1i t\u0103ng trung b\u00ecnh h\u00e0ng n\u0103m l\u00e0 9,34 t\u1ea5n\/ha\/n\u0103m v\u00e0 82,22 \u00b1 19,68 t\u1ea5n\/ha \u0111\u1ed1i v\u1edbi r\u1eebng 7 tu\u1ed5i v\u00e0 l\u01b0\u1ee3ng sinh kh\u1ed1i t\u0103ng trung b\u00ecnh h\u00e0ng n\u0103m l\u00e0 16,44 t\u1ea5n\/ha\/n\u0103m. <\/p>\n

\u0110\u00e3 s\u1eed d\u1ee5ng h\u00e0m tuy\u1ebfn t\u00ednh c\u00f3 d\u1ea1ng log(W)= log(a) + log(D1,3) \u0111\u1ec3 m\u00f4 t\u1ea3 t\u01b0\u01a1ng quan sinh kh\u1ed1i c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn c\u1ee7a c\u00e2y v\u1edbi \u0111\u01b0\u1eddng k\u00ednh (D1,3). <\/p>\n

T\u1eeb kho\u00e1: <\/strong>Keo lai, sinh kh\u1ed1i, th\u00e0nh ph\u1ed1 H\u1ed3 Ch\u00ed Minh <\/p>\n

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

Keo lai (Hybrid Acacia<\/em>), thu\u1ed9c h\u1ecd ph\u1ee5 Trinh n\u1eef (Mimosoideae<\/em>), b\u1ed9 \u0110\u1eadu (Leguminosae), t\u00ean th\u01b0\u1eddng g\u1ecdi l\u00e0 Keo lai do lai t\u1ef1 nhi\u00ean t\u1eeb Keo tai t\u01b0\u1ee3ng (Acacia mangium<\/em>) v\u00e0 Keo l\u00e1 tr\u00e0m (Acacia auriculiformis<\/em>), c\u00e2y cao t\u1eeb 25 \u2013 30m, \u0111\u01b0\u1eddng k\u00ednh c\u00f3 th\u1ec3 \u0111\u1ebfn 60 \u2013 80cm. C\u00e2y \u01b0a s\u00e1ng, m\u1ecdc nhanh, c\u00f3 kh\u1ea3 n\u0103ng c\u1ea3i t\u1ea1o \u0111\u1ea5t, ch\u1ed1ng x\u00f3i m\u00f2n, c\u1ea3i t\u1ea1o m\u00f4i tr\u01b0\u1eddng sinh th\u00e1i, g\u00f3p ph\u1ea7n h\u1ea1n ch\u1ebf l\u0169 l\u1ee5t. G\u1ed7 th\u1eb3ng, m\u00e0u v\u00e0ng tr\u1eafng c\u00f3 v\u00e2n, c\u00f3 gi\u00e1c l\u00f5i ph\u00e2n bi\u1ec7t, g\u1ed7 c\u00f3 t\u00e1c d\u1ee5ng nhi\u1ec1u m\u1eb7t nh\u01b0 k\u00edch th\u01b0\u1edbc nh\u1ecf l\u00e0m nguy\u00ean li\u1ec7u gi\u1ea5y. <\/p>\n

C\u1eadp nh\u1eadt t\u1ea1i \u0111\u00e2y<\/a><\/strong> <\/p>\n","protected":false},"excerpt":{"rendered":"

\n \n<\/p>\n

\nR\u1eebng Keo lai tr\u1ed3ng trên \u0111\u1ea5t thoái hoá c\u1ee7a khu v\u1ef1c ph\u01b0\u1eddng Long Bình – qu\u1eadn 9 – thành ph\u1ed1 H\u1ed3 Chí Minh cho th\u1ea5y sinh kh\u1ed1i c\u1ee7a Keo lai tr\u1ed3ng \u0111\u1ea1t 46,69 ± 5,11 t\u1ea5n\/ha \u1edf tu\u1ed5i 5, sinh kh\u1ed1i t\u0103ng trung bình hàng n\u0103m là 9,34 t\u1ea5n\/ha\/n\u0103m và 82,22 ± 19,68 t\u1ea5n\/ha \u0111\u1ed1i v\u1edbi r\u1eebng 7 tu\u1ed5i và l\u01b0\u1ee3ng sinh kh\u1ed1i t\u0103ng trung bình hàng n\u0103m là 16,44 t\u1ea5n\/ha\/n\u0103m.<\/font><\/font>\n<\/p>\n

\n\u0110ã s\u1eed d\u1ee5ng hàm tuy\u1ebfn tính có d\u1ea1ng log(W)= log(a) + log(D1,3) \u0111\u1ec3 mô t\u1ea3 t\u01b0\u01a1ng quan sinh kh\u1ed1i c\u1ee7a các b\u1ed9 ph\u1eadn c\u1ee7a cây v\u1edbi \u0111\u01b0\u1eddng kính (D1,3).<\/font><\/font><\/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\/9006"}],"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=9006"}],"version-history":[{"count":1,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9006\/revisions"}],"predecessor-version":[{"id":10462,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9006\/revisions\/10462"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=9006"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=9006"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=9006"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}