{"id":9078,"date":"2009-04-20T08:31:16","date_gmt":"2009-04-20T01:31:16","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/2009\/04\/ket-qua-xay-dung-mo-hinh-trinh-dien-ky-thuat-tia-thua-rung-trong-thong-duoi-ngua-thuan-loai-va-thong-duoi-ngua-xen-keo-tai-tuong-o-vung-du-an-kfw1\/"},"modified":"2013-10-06T09:01:17","modified_gmt":"2013-10-06T02:01:17","slug":"ket-qua-xay-dung-mo-hinh-trinh-dien-ky-thuat-tia-thua-rung-trong-thong-duoi-ngua-thuan-loai-va-thong-duoi-ngua-xen-keo-tai-tuong-o-vung-du-an-kfw1","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/ket-qua-xay-dung-mo-hinh-trinh-dien-ky-thuat-tia-thua-rung-trong-thong-duoi-ngua-thuan-loai-va-thong-duoi-ngua-xen-keo-tai-tuong-o-vung-du-an-kfw1\/","title":{"rendered":"K\u1ebft qu\u1ea3 x\u00e2y d\u1ef1ng m\u00f4 h\u00ecnh tr\u00ecnh di\u1ec5n k\u1ef9 thu\u1eadt t\u1ec9a th\u01b0a r\u1eebng tr\u1ed3ng Th\u00f4ng \u0111u\u00f4i ng\u1ef1a thu\u1ea7n lo\u00e0i v\u00e0 Th\u00f4ng \u0111u\u00f4i ng\u1ef1a xen Keo tai t\u01b0\u1ee3ng \u1edf v\u00f9ng d\u1ef1 \u00e1n KFW1"},"content":{"rendered":"\n<p> <strong>Tr\u1ea7n V\u0103n Con, Nguy\u1ec5n To\u00e0n Th\u1eafng<\/strong> <\/p>\n<p> <em>Ph\u00f2ng Nghi\u00ean c\u1ee9u K\u1ef9 thu\u1eadt L\u00e2m sinh<\/em> <\/p>\n<p> <em>Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam<\/em><strong><\/strong> <\/p>\n<p> <strong>T\u00d3M T\u1eaeT<\/strong> <\/p>\n<p> B\u00e0i b\u00e1o tr\u00ecnh b\u00e0y k\u1ebft qu\u1ea3 x\u00e2y d\u1ef1ng m\u00f4 h\u00ecnh k\u1ef9 thu\u1eadt t\u1ec9a th\u01b0a r\u1eebng tr\u1ed3ng Th\u00f4ng \u0111u\u00f4i ng\u1ef1a thu\u1ea7n lo\u00e0i v\u00e0 xen Keo l\u00e1 tr\u00e0m \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp do d\u1ef1 \u00e1n KfW1 t\u00e0i tr\u1ee3 t\u1ea1i B\u1eafc Giang v\u00e0 L\u1ea1ng S\u01a1n. K\u1ebft qu\u1ea3 theo d\u00f5i sau m\u1ed9t n\u0103m cho th\u1ea5y vi\u1ec7c t\u1ec9a th\u01b0a \u0111\u00e3 c\u1ea3i thi\u1ec7n sinh tr\u01b0\u1edfng c\u1ee7a c\u00e2y \u0111\u1ec3 l\u1ea1i r\u00f5 r\u1ec7t, l\u01b0\u1ee3ng t\u0103ng tr\u01b0\u1edfng trong m\u1ed9t n\u0103m sau khi t\u1ec9a th\u01b0a bi\u1ebfn \u0111\u1ed9ng t\u1eeb 4-13,46 m<sup>3<\/sup>\/ha\/n\u0103m, trong khi r\u1eebng kh\u00f4ng t\u1ec9a th\u01b0a \u1edf trong v\u00f9ng \u0111\u1ea1t b\u00ecnh qu\u00e2n t\u1eeb 3-7 m<sup>3<\/sup>\/ha\/n\u0103m. Tuy nhi\u00ean, m\u1eadt \u0111\u1ed9 xu\u1ea5t ph\u00e1t c\u1ee7a c\u00e1c m\u00f4 h\u00ecnh kh\u00e1c nhau, cho n\u00ean c\u01b0\u1eddng \u0111\u1ed9 t\u1ec9a kh\u00e1c nhau \u0111\u00e3 kh\u00f4ng \u1ea3nh h\u01b0\u1edfng r\u00f5 r\u1ec7t \u0111\u1ebfn s\u1ed1 c\u00e2y \u0111\u1ec3 l\u1ea1i sau t\u1ec9a th\u01b0a (\u0111\u1ed1i v\u1edbi c\u00e1c c\u00f4ng th\u1ee9c kh\u00e1c nhau). <\/p>\n<p> <strong>T\u1eeb kho\u00e1: <\/strong>K\u1ef9 thu\u1eadt t\u1ec9a th\u01b0a, r\u1eebng Th\u00f4ng \u0111u\u00f4i ng\u1ef1a thu\u1ea7n lo\u00e0i, r\u1eebng Th\u00f4ng \u0111u\u00f4i ng\u1ef1a xen Keo l\u00e1 tr\u00e0m. <\/p>\n<p> <strong>M\u1ede \u0110\u1ea6U<\/strong> <\/p>\n<p> Trong kho\u1ea3ng 15.000ha r\u1eebng \u0111\u00e3 \u0111\u01b0\u1ee3c tr\u1ed3ng t\u1eeb nh\u1eefng n\u0103m 1996-2000 trong khu\u00f4n kh\u1ed5 h\u1ee3p t\u00e1c T\u00e0i ch\u00ednh Vi\u1ec7t \u0110\u1ee9c (d\u1ef1 \u00e1n KfW1) \u1edf hai t\u1ec9nh L\u1ea1ng S\u01a1n v\u00e0 B\u1eafc Giang, c\u00f3 hai ph\u01b0\u01a1ng th\u1ee9c tr\u1ed3ng ch\u1ee7 y\u1ebfu: (i) <strong><em>R\u1eebng tr\u1ed3ng Th\u00f4ng \u0111u\u00f4i ng\u1ef1a thu\u1ea7n lo\u00e0i<\/em><\/strong> (<em>Pinus massosiana<\/em>), chi\u1ebfm m\u1ed9t t\u1ef7 l\u1ec7 kh\u00e1 l\u1edbn, \u0111\u01b0\u1ee3c tr\u1ed3ng \u1edf v\u00f9ng d\u1ef1 \u00e1n v\u1edbi hai m\u1eadt \u0111\u1ed9 ch\u1ee7 y\u1ebfu \u0111\u00f3 l\u00e0: 1.600 v\u00e0 2.000 c\u00e2y\/ha. R\u1eebng \u0111\u00e3 kh\u00e9p t\u00e1n, hi\u1ec7n t\u01b0\u1ee3ng c\u1ea1nh tranh gi\u1eefa c\u00e1c c\u00e2y tr\u1ed3ng \u0111\u00e3 di\u1ec5n ra m\u1ea1nh m\u1ebd g\u00e2y n\u00ean s\u1ef1 ph\u00e2n ho\u00e1 v\u00e0 l\u00e0m \u1ea3nh h\u01b0\u1edfng s\u1ef1 sinh tr\u01b0\u1edfng c\u0169ng nh\u01b0 ch\u1ea5t l\u01b0\u1ee3ng g\u1ed7 c\u1ee7a c\u00e2y tr\u1ed3ng. (ii) <strong><em>R\u1eebng tr\u1ed3ng h\u1ed7n giao Th\u00f4ng \u0111u\u00f4i ng\u1ef1a v\u00e0 Keo l\u00e1 tr\u00e0m<\/em><\/strong>: c\u00f3 di\u1ec7n t\u00edch \u00edt h\u01a1n v\u00e0 \u0111\u01b0\u1ee3c tr\u1ed3ng theo t\u1ef7 l\u1ec7 1:3 (m\u1ed9t h\u00e0ng Keo l\u00e1 tr\u00e0m xen v\u1edbi 3 h\u00e0ng Th\u00f4ng \u0111u\u00f4i ng\u1ef1a). Ph\u1ea7n l\u1edbn nh\u1eefng di\u1ec7n t\u00edch tr\u1ed3ng theo m\u00f4 h\u00ecnh n\u00e0y \u1edf v\u00f9ng d\u1ef1 \u00e1n \u0111\u00e3 x\u1ea3y ra hi\u1ec7n t\u01b0\u1ee3ng c\u00e2y Keo l\u00e1 tr\u00e0m l\u1ea5n \u00e1t l\u00e0m cho c\u00e2y Th\u00f4ng \u0111u\u00f4i ng\u1ef1a kh\u00f4ng ph\u00e1t tri\u1ec3n b\u00ecnh th\u01b0\u1eddng \u0111\u01b0\u1ee3c.  <\/p>\n<p> <strong><a>C\u1eadp nh\u1eadt t\u1ea1i \u0111\u00e2y<\/a><\/strong> <\/p>\n","protected":false},"excerpt":{"rendered":"<p align=\"justify\">\n&nbsp;\n<\/p>\n<p align=\"justify\">\n<span><font size=\"3\"><font face=\"Times New Roman\">B&agrave;i b&aacute;o tr&igrave;nh b&agrave;y k\u1ebft qu\u1ea3 x&acirc;y d\u1ef1ng m&ocirc; h&igrave;nh k\u1ef9 thu\u1eadt t\u1ec9a th\u01b0a r\u1eebng tr\u1ed3ng Th&ocirc;ng \u0111u&ocirc;i ng\u1ef1a thu\u1ea7n lo&agrave;i v&agrave; xen Keo l&aacute; tr&agrave;m \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp do d\u1ef1 &aacute;n KfW1 t&agrave;i tr\u1ee3 t\u1ea1i B\u1eafc Giang v&agrave; L\u1ea1ng S\u01a1n. K\u1ebft qu\u1ea3 theo d&otilde;i sau m\u1ed9t n\u0103m cho th\u1ea5y vi\u1ec7c t\u1ec9a th\u01b0a \u0111&atilde; c\u1ea3i thi\u1ec7n sinh tr\u01b0\u1edfng c\u1ee7a c&acirc;y \u0111\u1ec3 l\u1ea1i r&otilde; r\u1ec7t, l\u01b0\u1ee3ng t\u0103ng tr\u01b0\u1edfng trong m\u1ed9t n\u0103m sau khi t\u1ec9a th\u01b0a bi\u1ebfn \u0111\u1ed9ng t\u1eeb 4-13,46 m<sup>3<\/sup>\/ha\/n\u0103m, trong khi r\u1eebng kh&ocirc;ng t\u1ec9a th\u01b0a \u1edf trong v&ugrave;ng \u0111\u1ea1t b&igrave;nh qu&acirc;n t\u1eeb 3-7 m<sup>3<\/sup>\/ha\/n\u0103m. Tuy nhi&ecirc;n, m\u1eadt \u0111\u1ed9 xu\u1ea5t ph&aacute;t c\u1ee7a c&aacute;c m&ocirc; h&igrave;nh kh&aacute;c nhau, cho n&ecirc;n c\u01b0\u1eddng \u0111\u1ed9 t\u1ec9a kh&aacute;c nhau \u0111&atilde; kh&ocirc;ng \u1ea3nh h\u01b0\u1edfng r&otilde; r\u1ec7t \u0111\u1ebfn s\u1ed1 c&acirc;y \u0111\u1ec3 l\u1ea1i sau t\u1ec9a th\u01b0a (\u0111\u1ed1i v\u1edbi c&aacute;c c&ocirc;ng th\u1ee9c kh&aacute;c nhau). <\/font><\/font><\/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\/9078"}],"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=9078"}],"version-history":[{"count":1,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9078\/revisions"}],"predecessor-version":[{"id":10532,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9078\/revisions\/10532"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=9078"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=9078"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=9078"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}