{"id":9857,"date":"2012-06-19T07:36:07","date_gmt":"2012-06-19T00:36:07","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/2012\/06\/mot-so-dac-diem-quan-the-va-phan-bo-loai-thong-hai-la-det-pinus-krempfii-h-lec-o-lam-dong\/"},"modified":"2015-05-19T13:26:13","modified_gmt":"2015-05-19T06:26:13","slug":"mot-so-dac-diem-quan-the-va-phan-bo-loai-thong-hai-la-det-pinus-krempfii-h-lec-o-lam-dong","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/mot-so-dac-diem-quan-the-va-phan-bo-loai-thong-hai-la-det-pinus-krempfii-h-lec-o-lam-dong\/","title":{"rendered":"M\u1ed9t s\u1ed1 \u0111\u1eb7c \u0111i\u1ec3m qu\u1ea7n th\u1ec3 v\u00e0 ph\u00e2n b\u1ed1 lo\u00e0i Th\u00f4ng hai l\u00e1 d\u1eb9t (Pinus krempfii H.Lec) \u1edf L\u00e2m \u0110\u1ed3ng"},"content":{"rendered":"

Nguy\u1ec5n Th\u00e0nh M\u1ebfn<\/strong><\/p>\n

Trung t\u00e2m Nghi\u00ean c\u1ee9u Th\u1ef1c nghi\u1ec7m L\u00e2m sinh L\u00e2m \u0110\u1ed3ng<\/em><\/p>\n

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

Th\u00f4ng 2 l\u00e1 d\u1eb9t (Pinus krempfii<\/em> H.Lec ) l\u00e0 lo\u00e0i th\u00f4ng \u0111\u1eb7c h\u1eefu c\u1ee7a Vi\u1ec7t Nam v\u00e0 c\u00f3 ph\u00e2n b\u1ed1 t\u1eadp trung \u1edf v\u00f9ng Bidoup – N\u00fai B\u00e0, C\u1ed5ng tr\u1eddi c\u1ee7a L\u00e2m \u0110\u1ed3ng, m\u1ed9t s\u1ed1 \u00edt \u1edf Ch\u01b0 Yang Sin- \u0110\u1eafc L\u1eafc, H\u00f2n B\u00e0 thu\u1ed9c Kh\u00e1nh H\u00f2a v\u00e0 v\u00f9ng N\u00fai Ch\u00faa thu\u1ed9c t\u1ec9nh Ninh Thu\u1eadn. Theo ti\u00eau chu\u1ea9n ph\u00e2n lo\u1ea1i c\u1ee7a S\u00e1ch \u0111\u1ecf Vi\u1ec7t Nam lo\u00e0i n\u00e0y \u0111\u01b0\u1ee3c x\u1ebfp v\u00e0o c\u1ea5p V (Vulnerable) – S\u1ebd nguy c\u1ea5p ( c\u00f3 th\u1ec3 b\u1ecb \u0111e d\u1ecda tuy\u1ec7t ch\u1ee7ng); v\u00e0 theo ti\u00eau chu\u1ea9n IUCN \u0111\u01b0\u1ee3c x\u1ebfp v\u00e0o c\u1ea5p EN (Endanger)- nguy c\u1ea5p. \u1ede L\u00e2m \u0110\u1ed3ng, lo\u00e0i n\u00e0y ph\u00e2n b\u1ed1 t\u1eadp trung \u1edf nh\u1eefng v\u00f9ng c\u00f3 \u0111\u1ed9 cao t\u1eeb 1.400 – 1.900m, hi\u1ec7n di\u1ec7n ph\u1ed5 bi\u1ebfn trong ki\u1ec3u r\u1eebng l\u00e1 r\u1ed9ng h\u1ed7n giao v\u1edbi c\u00e2y l\u00e1 kim v\u00e0 tr\u00ean d\u1ea1ng \u0111\u1ecba h\u00ecnh s\u01b0\u1eddn \u0111\u1ec9nh. C\u00e1c qu\u1ea7n th\u1ec3 Th\u00f4ng 2 l\u00e1 d\u1eb9t \u0111ang t\u1ed3n t\u1ea1i \u0111a ph\u1ea7n \u1edf giai \u0111o\u1ea1n qu\u00e1 th\u00e0nh th\u1ee5c, nhi\u1ec1u qu\u1ea7n th\u1ec3 \u0111\u00e3 ch\u1ebft m\u1ee5c, m\u1ed9t s\u1ed1 kh\u00e1c \u0111ang trong qu\u00e1 tr\u00ecnh ch\u1ebft d\u1ea7n, t\u1ef7 l\u1ec7 c\u00e2y b\u1ecb b\u1ec7nh m\u1ee5c v\u00e0 r\u1ed7ng ru\u1ed9t chi\u1ebfm t\u1eeb 23-36% t\u1ed5ng s\u1ed1 c\u00e2y trong qu\u1ea7n th\u1ec3. Lo\u00e0i n\u00e0y \u0111ang trong t\u00ecnh tr\u1ea1ng b\u1ecb \u0111e d\u1ecda. Ri\u00eang \u1edf L\u00e2m \u0110\u1ed3ng tuy s\u1ed1 l\u01b0\u1ee3ng c\u00e1 th\u1ec3 b\u01b0\u1edbc \u0111\u1ea7u \u0111\u00e3 th\u1ed1ng k\u00ea \u0111\u01b0\u1ee3c kho\u1ea3ng tr\u00ean 1.000 c\u00e1 th\u1ec3, nh\u01b0ng ch\u01b0a ph\u00e1t hi\u1ec7n qu\u1ea7n th\u1ec3 n\u00e0o c\u00f3 tr\u00ean 250 c\u00e1 th\u1ec3 tr\u01b0\u1edfng th\u00e0nh. S\u1ed1 c\u00e1 th\u1ec3 trong qu\u1ea7n th\u1ec3 b\u00ecnh qu\u00e2n kho\u1ea3ng 20 c\u00e2y, hi\u1ebfm khi c\u00f3 qu\u1ea7n th\u1ec3 c\u00f3 s\u1ed1 l\u01b0\u1ee3ng c\u00e1 th\u1ec3 tr\u01b0\u1edfng th\u00e0nh tr\u00ean 100 c\u00e2y. B\u00ean c\u1ea1nh \u0111\u00f3, c\u1ea5u tr\u00fac qu\u1ea7n th\u1ec3 g\u1ed3m nhi\u1ec1u c\u00e2y th\u00e0nh th\u1ee5c v\u00e0 qu\u00e1 th\u00e0nh th\u1ee5c (\u0111\u01b0\u1eddng k\u00ednh tr\u00ean 80cm) trong khi l\u1edbp c\u00e2y k\u1ebf c\u1eadn thi\u1ebfu v\u00e0 t\u00ecnh h\u00ecnh t\u00e1i sinh k\u00e9m, cho n\u00ean kh\u1ea3 n\u0103ng t\u1ed3n t\u1ea1i c\u1ee7a qu\u1ea7n th\u1ec3 trong t\u01b0\u01a1ng lai \u0111ang b\u1ecb \u0111e d\u1ecda.<\/p>\n

T\u1eeb kh\u00f3a:<\/strong> C\u00e2y l\u00e1 kim, \u0110\u1eb7c \u0111i\u1ec3m qu\u1ea7n th\u1ec3, Ph\u00e2n b\u1ed1, Th\u00f4ng 2 l\u00e1 d\u1eb9t, S\u00e1ch \u0111\u1ecf Vi\u1ec7t Nam.<\/p>\n

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

Th\u00f4ng 2 l\u00e1 d\u1eb9t c\u00f2n c\u00f3 t\u00ean kh\u00e1c l\u00e0 Th\u00f4ng Sri, Th\u00f4ng 2 l\u00e1 gi\u1eb9p. T\u00ean khoa h\u1ecdc l\u00e0 Pinus krempfii<\/em> H.Lec. t\u00ean \u0111\u1ed3ng ngh\u0129a Ducampopinus krempfii<\/em> (Lec.) A. Chev. thu\u1ed9c h\u1ecd Th\u00f4ng (Pinaceae).<\/p>\n

L\u00e0 c\u00e2y g\u1ed7 l\u1edbn, chi\u1ec1u cao l\u00ean \u0111\u1ebfn 30-35m v\u00e0 th\u01b0\u1eddng chi\u1ebfm t\u1ea7ng tr\u00ean t\u00e1n r\u1eebng. \u0110\u01b0\u1eddng k\u00ednh th\u00e2n l\u00ean \u0111\u1ebfn tr\u00ean 1m, \u0111\u00f4i khi \u0111\u1ebfn tr\u00ean 2m. Th\u00e2n tr\u00f2n th\u1eb3ng, \u0111o\u1ea1n th\u00e2n d\u01b0\u1edbi c\u00e0nh l\u1edbn, \u00edt c\u00e0nh nh\u00e1nh ph\u1ee5, c\u00e0nh th\u01b0\u1eddng c\u00f3 m\u00e0u n\u00e2u \u0111\u1ecf. V\u1ecf m\u00e0u n\u00e2u x\u00e1m, bong ra d\u1ea1ng v\u1ea3y. T\u00e1n c\u00e2y th\u01b0\u1eddng kh\u00e1 r\u1ed9ng, m\u00e0u xanh s\u1eabm v\u00e0 c\u00f3 h\u00ecnh r\u1ebd qu\u1ea1t \u0111\u1eb7c tr\u01b0ng d\u1ec5 ph\u00e2n bi\u1ec7t v\u1edbi t\u00e1n c\u00e1c lo\u00e0i m\u1ecdc chung kh\u00e1c.<\/p>\n

L\u00e1 t\u1eadp trung \u1edf \u0111\u1ea7u c\u00e0nh; m\u1ed7i b\u1eb9 mang 2 l\u00e1, d\u1ea1ng h\u00ecnh l\u00e1 m\u00e1c d\u1eb9t, nh\u1ecdn \u1edf \u0111\u1ea7u, d\u00e0i t\u1eeb 7 -12cm, r\u1ed9ng 0,2 – 0,4cm. N\u00f3n \u0111\u01a1n t\u00ednh, n\u00f3n \u0111\u1ef1c h\u00ecnh tr\u1ee5, n\u00f3n c\u00e1i m\u1ecdc \u0111\u01a1n \u0111\u1ed9c, th\u01b0\u1eddng h\u01b0\u1edbng xu\u1ed1ng d\u01b0\u1edbi, h\u00ecnh tr\u1ee9ng, d\u00e0i 4-9cm, r\u1ed9ng 3-8cm. Khi ch\u00edn c\u00e1c v\u1ea3y n\u00f3n kh\u00f4ng m\u1edf h\u1ebft \u0111\u1ebfn g\u1ed1c; v\u1ea3y l\u1ed3i, h\u00ecnh thoi v\u1edbi m\u1ed9t \u0111\u01b0\u1eddng ngang \u1edf gi\u1eefa, c\u00f3 m\u00e0o h\u01a1i l\u1ed3i. H\u1ea1t nh\u1ecf, h\u00ecnh b\u1ea7u d\u1ee5c d\u00e0i, c\u00f3 c\u00e1nh tr\u00f2n \u1edf \u0111\u1ea7u. M\u00f9a qu\u1ea3 ch\u00edn v\u00e0o th\u00e1ng 9 – 10.<\/p>\n

\u0110\u00e2y l\u00e0 lo\u00e0i th\u00f4ng \u0111\u1eb7c h\u1eefu c\u1ee7a Vi\u1ec7t Nam, \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n t\u1eadp trung \u1edf L\u00e2m \u0110\u1ed3ng, m\u1ed9t s\u1ed1 \u00edt \u1edf Ch\u01b0 Yang Sin- \u0110\u1eafc L\u1eafc, H\u00f2n B\u00e0 thu\u1ed9c Kh\u00e1nh H\u00f2a v\u00e0 v\u00f9ng N\u00fai Ch\u00faa thu\u1ed9c t\u1ec9nh Ninh Thu\u1eadn. T\u1ea1i L\u00e2m \u0110\u1ed3ng, Th\u00f4ng 2 l\u00e1 d\u1eb9t hi\u1ec7n di\u1ec7n ch\u1ee7 y\u1ebfu trong ki\u1ec3u r\u1eebng h\u1ed7n giao c\u00e2y l\u00e1 r\u1ed9ng v\u00e0 l\u00e1 kim t\u1eadp trung \u1edf v\u00f9ng Bidoup – N\u00fai B\u00e0, C\u1ed5ng Tr\u1eddi v\u00e0 s\u1ed1 \u00edt \u1edf \u0110a Nhim.<\/p>\n

Theo ti\u00eau chu\u1ea9n ph\u00e2n lo\u1ea1i c\u1ee7a S\u00e1ch \u0111\u1ecf Vi\u1ec7t Nam lo\u00e0i n\u00e0y \u0111\u01b0\u1ee3c x\u1ebfp v\u00e0o c\u1ea5p V (Vulnerable )- s\u1ebd nguy c\u1ea5p (c\u00f3 th\u1ec3 b\u1ecb \u0111e d\u1ecda tuy\u1ec7t ch\u1ee7ng); v\u00e0 theo ti\u00eau chu\u1ea9n IUCN \u0111\u01b0\u1ee3c x\u1ebfp v\u00e0o c\u1ea5p EN (Endanger)- nguy c\u1ea5p.<\/p>\n

<\/strong>Qua c\u00e1c nghi\u00ean c\u1ee9u tr\u01b0\u1edbc \u0111\u00e2y cho th\u1ea5y h\u1ea7u h\u1ebft c\u00e1c qu\u1ea7n th\u1ec3 Th\u00f4ng 2 l\u00e1 d\u1eb9t \u1edf L\u00e2m \u0110\u1ed3ng c\u00f3 s\u1ed1 l\u01b0\u1ee3ng c\u00e1 th\u1ec3 \u00edt, trong qu\u1ea7n th\u1ec3 t\u1eadp trung nhi\u1ec1u c\u00e2y qu\u00e1 th\u00e0nh th\u1ee5c v\u00e0 h\u1ee5t h\u1eabng s\u1ed1 l\u01b0\u1ee3ng \u1edf c\u00e1c th\u1ebf h\u1ec7 k\u1ebf c\u1eadn, t\u00ecnh h\u00ecnh t\u00e1i sinh t\u1ef1 nhi\u00ean k\u00e9m. B\u00ean c\u1ea1nh \u0111\u00f3, kh\u00f4ng gian s\u1ed1ng c\u1ee7a lo\u00e0i \u0111ang ng\u00e0y c\u00e0ng thu h\u1eb9p do t\u00e1c \u0111\u1ed9ng ph\u00e1 r\u1eebng, c\u00f9ng v\u1edbi s\u1ef1 thi\u1ebfu h\u1ee5t v\u1ec1 c\u00e1c th\u00f4ng tin li\u00ean quan c\u1ea7n thi\u1ebft cho c\u00f4ng t\u00e1c b\u1ea3o t\u1ed3n, Th\u00f4ng 2 l\u00e1 d\u1eb9t \u0111ang b\u1ecb \u0111e d\u1ecda th\u1ef1c s\u1ef1 trong t\u01b0\u01a1ng lai g\u1ea7n. Do v\u1eady c\u1ea7n c\u00f3 c\u00e1c nghi\u00ean c\u1ee9u b\u1ed5 sung v\u1ec1 \u0111\u1eb7c \u0111i\u1ec3m ph\u00e2n b\u1ed1, c\u1ea5u tr\u00fac qu\u1ea7n th\u1ec3 \u0111\u1ec3 l\u00e0m c\u01a1 s\u1edf cho c\u00e1c ho\u1ea1t \u0111\u1ed9ng b\u1ea3o t\u1ed3n \u0111a d\u1ea1ng sinh h\u1ecdc, b\u1ea3o t\u1ed3n lo\u00e0i Th\u00f4ng 2 l\u00e1 d\u1eb9t tr\u00ean \u0111\u1ecba b\u00e0n t\u1ec9nh L\u00e2m \u0110\u1ed3ng – l\u00e0 \u0111\u1ecba ph\u01b0\u01a1ng c\u00f3 ph\u00e2n b\u1ed1 t\u1eadp trung lo\u00e0i n\u00e0y – c\u00f3 hi\u1ec7u qu\u1ea3 h\u01a1n.<\/p>\n

(T\u1ea1p ch\u00ed Khoa h\u1ecdc L\u00e2m nghi\u1ec7p s\u1ed1 1, n\u0103m 2012, trang 202095-2104)<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

<\/p>\n

\nThông 2 lá d\u1eb9t (Pinus krempfii<\/em> H.Lec ) là
\nloài thông \u0111\u1eb7c h\u1eefu c\u1ee7a Vi\u1ec7t Nam và có phân b\u1ed1 t\u1eadp trung \u1edf vùng Bidoup – Núi Bà,
\nC\u1ed5ng tr\u1eddi c\u1ee7a Lâm \u0110\u1ed3ng, m\u1ed9t s\u1ed1 ít \u1edf Ch\u01b0 Yang Sin- \u0110\u1eafc L\u1eafc, Hòn Bà thu\u1ed9c Khánh
\nHòa và vùng Núi Chúa thu\u1ed9c t\u1ec9nh Ninh Thu\u1eadn. Theo tiêu
\nchu\u1ea9n phân lo\u1ea1i c\u1ee7a Sách \u0111\u1ecf Vi\u1ec7t Nam loài này \u0111\u01b0\u1ee3c x\u1ebfp vào c\u1ea5p V (Vulnerable)
\n– S\u1ebd nguy c\u1ea5p ( có th\u1ec3 b\u1ecb \u0111e d\u1ecda tuy\u1ec7t ch\u1ee7ng); và theo tiêu chu\u1ea9n IUCN \u0111\u01b0\u1ee3c x\u1ebfp
\nvào c\u1ea5p EN (Endanger)- nguy c\u1ea5p. <\/span><\/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\/9857"}],"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=9857"}],"version-history":[{"count":2,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9857\/revisions"}],"predecessor-version":[{"id":15212,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9857\/revisions\/15212"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=9857"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=9857"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=9857"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}