{"id":9048,"date":"2009-04-20T08:22:40","date_gmt":"2009-04-20T01:22:40","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/2009\/04\/sinh-khoi-cay-ca-the-va-moi-tuong-quan-giua-cac-nhan-to-dieu-tra-cua-thong-ma-vi-pinus-massoniana-lamb-trong-thuan-loai-tren-cac-cap-dat-khac-nhau-tai-vung-dong-bac\/"},"modified":"2013-10-06T09:01:12","modified_gmt":"2013-10-06T02:01:12","slug":"sinh-khoi-cay-ca-the-va-moi-tuong-quan-giua-cac-nhan-to-dieu-tra-cua-thong-ma-vi-pinus-massoniana-lamb-trong-thuan-loai-tren-cac-cap-dat-khac-nhau-tai-vung-dong-bac","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/sinh-khoi-cay-ca-the-va-moi-tuong-quan-giua-cac-nhan-to-dieu-tra-cua-thong-ma-vi-pinus-massoniana-lamb-trong-thuan-loai-tren-cac-cap-dat-khac-nhau-tai-vung-dong-bac\/","title":{"rendered":"Sinh kh\u1ed1i c\u00e2y c\u00e1 th\u1ec3 v\u00e0 m\u1ed1i t\u01b0\u01a1ng quan gi\u1eefa c\u00e1c nh\u00e2n t\u1ed1 \u0111i\u1ec1u tra c\u1ee7a Th\u00f4ng m\u00e3 v\u0129 (Pinus massoniana Lamb) tr\u1ed3ng thu\u1ea7n lo\u00e0i tr\u00ean c\u00e1c c\u1ea5p \u0111\u1ea5t kh\u00e1c nhau t\u1ea1i v\u00f9ng \u0110\u00f4ng B\u1eafc"},"content":{"rendered":"\n

\u0110\u1eb7ng Th\u1ecbnh Tri\u1ec1u<\/strong> <\/p>\n

Ph\u00f2ng Nghi\u00ean c\u1ee9u K\u1ef9 thu\u1eadt L\u00e2m sinh <\/em> <\/p>\n

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

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

Nghi\u00ean c\u1ee9u n\u00e0y \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n trong \u0111\u1ec1 t\u00e0i: “Nghi\u00ean c\u1ee9u kh\u1ea3 n\u0103ng h\u1ea5p th\u1ee5 v\u00e0 gi\u00e1 tr\u1ecb th\u01b0\u01a1ng m\u1ea1i carbon c\u1ee7a m\u1ed9t s\u1ed1 d\u1ea1ng r\u1eebng tr\u1ed3ng ch\u1ee7 y\u1ebfu \u1edf Vi\u1ec7t Nam” do Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam ch\u1ee7 tr\u00ec. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u \u0111\u00e3 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c sinh kh\u1ed1i v\u00e0 c\u1ea5u tr\u00fac sinh kh\u1ed1i t\u01b0\u01a1i v\u00e0 kh\u00f4 c\u1ee7a c\u00e2y c\u00e1 th\u1ec3 Th\u00f4ng m\u00e3 v\u0129 c\u1ea5p \u0111\u1ea5t v\u00e0 tu\u1ed5i t\u1ea1i L\u1ea1ng S\u01a1n v\u00e0 B\u1eafc Giang. Nghi\u00ean c\u1ee9uc\u0169ng \u0111\u00e3 x\u00e2y d\u1ef1ng \u0111\u01b0\u1ee3c m\u1ed1i quan h\u1ec7 gi\u1eefa sinh kh\u1ed1i t\u01b0\u01a1i, kh\u00f4 c\u00e2y c\u00e1 th\u1ec3 Th\u00f4ng m\u00e3 v\u0129 v\u1edbi c\u00e1c nh\u00e2n t\u1ed1 \u0111i\u1ec1u tra l\u00e2m ph\u1ea7n d\u1ec5 x\u00e1c \u0111\u1ecbnh nh\u01b0 D1,3, Hvn, A; m\u1ed1i quan h\u1ec7 gi\u1eefa sinh kh\u1ed1i t\u01b0\u01a1i v\u00e0 sinh kh\u1ed1i kh\u00f4, sinh kh\u1ed1i tr\u00ean m\u1eb7t \u0111\u1ea5t v\u00e0 d\u01b0\u1edbi m\u1eb7t \u0111\u1ea5t. C\u00e1c m\u1ed1i quan h\u1ec7 n\u00e0y \u0111\u01b0\u1ee3c m\u00f4 ph\u1ecfng b\u1edfi c\u00e1c d\u1ea1ng h\u00e0m Power (y = a.xb) v\u00e0 h\u00e0m S (y =exp(a – b\/x) v\u1edbi h\u1ec7 s\u1ed1 t\u01b0\u01a1ng quan cao, sai ti\u00eau chu\u1ea9n th\u1ea5p v\u00e0 \u0111\u01a1n gi\u1ea3n, d\u1ec5 \u00e1p d\u1ee5ng. C\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng tr\u00ecnh n\u00e0y \u0111\u1ec3 t\u00ednh to\u00e1n, d\u1ef1 b\u00e1o sinh kh\u1ed1i t\u01b0\u01a1i, kh\u00f4 c\u00e1c b\u1ed9 ph\u1eadn c\u00e2y c\u00e1 th\u1ec3 Th\u00f4ng m\u00e3 v\u0129 th\u00f4ng qua c\u00e1c nh\u00e2n t\u1ed1 \u0111i\u1ec1u tra l\u00e2m ph\u1ea7n ch\u1ee7 y\u1ebfu. <\/p>\n

T\u1eeb kh\u00f3a<\/strong>: C\u00e2y c\u00e1 th\u1ec3, Th\u00f4ng m\u00e3 v\u0129 (Pinus massoniana<\/em>), sinh kh\u1ed1i kh\u00f4, sinh kh\u1ed1i t\u01b0\u01a1i, ph\u01b0\u01a1ng tr\u00ecnh t\u01b0\u01a1ng quan. <\/p>\n

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

Th\u00f4ng m\u00e3 v\u0129 (Pinus massoniana<\/em> Lamb) l\u00e0 c\u00e2y g\u1ed7 l\u1edbn, chi\u1ec1u cao c\u00f3 th\u1ec3 \u0111\u1ea1t 40 m, \u0111\u01b0\u1eddng k\u00ednh 1,3 c\u00f3 th\u1ec3 \u0111\u1ea1t 90cm. G\u1ed7 c\u00f3 m\u00e0u n\u00e2u v\u00e0ng, th\u1edb th\u00f4, th\u1eb3ng, nh\u1eb9 (t\u1ef7 tr\u1ecdng t\u1eeb 0,39 – 0,49) v\u00e0 ch\u1ee9a nhi\u1ec1u nh\u1ef1a. G\u1ed7 Th\u00f4ng m\u00e3 v\u0129 \u0111\u01b0\u1ee3c \u01b0a th\u00edch s\u1eed d\u1ee5ng v\u00e0o nhi\u1ec1u m\u1ee5c \u0111\u00edch kh\u00e1c nhau nh\u01b0 g\u1ed7 tr\u1ee5 m\u1ecf, c\u1ed9t \u0111i\u1ec7n, l\u00e0m di\u00eam, nguy\u00ean li\u1ec7u gi\u1ea5y, g\u1ed7 d\u00e1n, x\u00e2y d\u1ef1ng,\u2026 (L\u00ea M\u1ed9ng Ch\u00e2n v\u00e0 L\u00ea Th\u1ecb Huy\u00ean, 2000). B\u00ean c\u1ea1nh \u0111\u00f3, th\u00f4ng m\u00e3 v\u0129 c\u00f2n \u0111em l\u1ea1i ngu\u1ed3n l\u1ee3i kinh t\u1ebf kh\u00e1 l\u1edbn t\u1eeb khai th\u00e1c nh\u1ef1a. L\u00e0 c\u00e2y kh\u00e1 th\u00edch h\u1ee3p v\u1edbi vi\u1ec7c g\u00e2y tr\u1ed3ng \u1edf \u0111\u1ed3i tr\u1ecdc c\u00e1c t\u1ec9nh v\u00f9ng \u0110\u00f4ng B\u1eafc nh\u01b0 Qu\u1ea3ng Ninh, L\u1ea1ng S\u01a1n, B\u1eafc Giang, B\u1eafc K\u1ea1n, Th\u00e1i Nguy\u00ean,\u2026 Th\u00f4ng m\u00e3 v\u0129 l\u00e0 m\u1ed9t trong c\u00e1c lo\u00e0i c\u00e2y tr\u1ed3ng r\u1eebng ch\u00ednh cho v\u00f9ng n\u00e0y theo theo Quy\u1ebft \u0111\u1ecbnh s\u1ed1 16\/2005\/Q\u0110-BNN ng\u00e0y 15\/3\/2005 c\u1ee7a B\u1ed9 N\u00f4ng nghi\u1ec7p v\u00e0 Ph\u00e1t tri\u1ec3n N\u00f4ng th\u00f4n v\u1ec1 vi\u1ec7c ban h\u00e0nh danh m\u1ee5c c\u00e1c lo\u00e0i c\u00e2y ch\u1ee7 y\u1ebfu cho tr\u1ed3ng r\u1eebng s\u1ea3n xu\u1ea5t theo 9 v\u00f9ng sinh th\u00e1i l\u00e2m nghi\u1ec7p<\/em>. <\/p>\n

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

\n \n<\/p>\n

\nNghiên c\u1ee9u này \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n trong \u0111\u1ec1 tài: “Nghiên c\u1ee9u kh\u1ea3 n\u0103ng h\u1ea5p th\u1ee5 và giá tr\u1ecb th\u01b0\u01a1ng m\u1ea1i carbon c\u1ee7a m\u1ed9t s\u1ed1 d\u1ea1ng r\u1eebng tr\u1ed3ng ch\u1ee7 y\u1ebfu \u1edf Vi\u1ec7t Nam” do Vi\u1ec7n Khoa h\u1ecdc Lâm nghi\u1ec7p Vi\u1ec7t Nam ch\u1ee7 trì. K\u1ebft qu\u1ea3 nghiên c\u1ee9u \u0111ã xác \u0111\u1ecbnh \u0111\u01b0\u1ee3c sinh kh\u1ed1i và c\u1ea5u trúc sinh kh\u1ed1i t\u01b0\u01a1i và khô c\u1ee7a cây cá th\u1ec3 Thông mã v\u0129 c\u1ea5p \u0111\u1ea5t và tu\u1ed5i t\u1ea1i L\u1ea1ng S\u01a1n và B\u1eafc Giang. Nghiên c\u1ee9u <\/span>c\u0169ng \u0111ã xây d\u1ef1ng \u0111\u01b0\u1ee3c m\u1ed1i quan h\u1ec7 gi\u1eefa sinh kh\u1ed1i t\u01b0\u01a1i, khô cây cá th\u1ec3 Thông mã v\u0129 v\u1edbi các nhân t\u1ed1 \u0111i\u1ec1u tra lâm ph\u1ea7n d\u1ec5 xác \u0111\u1ecbnh nh\u01b0 D1,3, Hvn, A; m\u1ed1i quan h\u1ec7 gi\u1eefa sinh kh\u1ed1i t\u01b0\u01a1i và sinh kh\u1ed1i khô, sinh kh\u1ed1i trên m\u1eb7t \u0111\u1ea5t và d\u01b0\u1edbi m\u1eb7t \u0111\u1ea5t. Các m\u1ed1i quan h\u1ec7 này \u0111\u01b0\u1ee3c mô ph\u1ecfng b\u1edfi các d\u1ea1ng hàm Power (y = a.xb) và hàm S (y = <\/span>exp(a – b\/x) v\u1edbi h\u1ec7 s\u1ed1 t\u01b0\u01a1ng quan cao, sai tiêu chu\u1ea9n th\u1ea5p và \u0111\u01a1n gi\u1ea3n, d\u1ec5 áp d\u1ee5ng. Có th\u1ec3 s\u1eed d\u1ee5ng các ph\u01b0\u01a1ng trình này \u0111\u1ec3 tính toán, d\u1ef1 báo sinh kh\u1ed1i t\u01b0\u01a1i, khô các b\u1ed9 ph\u1eadn cây cá th\u1ec3 Thông mã v\u0129 thông qua các nhân t\u1ed1 \u0111i\u1ec1u tra lâm ph\u1ea7n ch\u1ee7 y\u1ebfu. <\/font><\/font><\/span>\n<\/div>\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\/9048"}],"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=9048"}],"version-history":[{"count":1,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9048\/revisions"}],"predecessor-version":[{"id":10502,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9048\/revisions\/10502"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=9048"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=9048"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=9048"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}