{"id":20452,"date":"2020-08-10T15:29:17","date_gmt":"2020-08-10T08:29:17","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/?p=20452"},"modified":"2020-08-10T15:29:17","modified_gmt":"2020-08-10T08:29:17","slug":"thong-tin-luan-an-tien-si-cua-nghien-cuu-sinh-le-canh-nam","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/thong-tin-luan-an-tien-si-cua-nghien-cuu-sinh-le-canh-nam\/","title":{"rendered":"Th\u00f4ng tin Lu\u1eadn \u00e1n Ti\u1ebfn s\u0129 c\u1ee7a Nghi\u00ean c\u1ee9u sinh L\u00ea C\u1ea3nh Nam"},"content":{"rendered":"

T\u00ean \u0111\u1ec1 t\u00e0i lu\u1eadn \u00e1n: \u0110\u1eb7c \u0111i\u1ec3m l\u00e2m h\u1ecdc v\u00e0 sinh th\u00e1i qu\u1ea7n th\u1ec3 lo\u00e0i Th\u00f4ng 5 l\u00e1 (Pinus dalatensis<\/em> Ferr\u00e9) \u1edf T\u00e2y Nguy\u00ean<\/p>\n

Chuy\u00ean ng\u00e0nh: L\u00e2m h\u1ecdc\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 M\u00e3 s\u1ed1: 9 62 02 05<\/p>\n

H\u1ecd v\u00e0 t\u00ean nghi\u00ean c\u1ee9u sinh: L\u00ea C\u1ea3nh Nam<\/p>\n

H\u1ecd v\u00e0 t\u00ean c\u00e1n b\u1ed9 h\u01b0\u1edbng d\u1eabn: 1. GS.TS. B\u1ea3o Huy; 2. TS. Nguy\u1ec5n Th\u1ea3nh M\u1ebfn<\/p>\n

T\u00ean c\u01a1 s\u1edf \u0111\u00e0o t\u1ea1o: Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam<\/p>\n

T\u00d3M T\u1eaeT NH\u1eeeNG K\u1ebeT LU\u1eacN M\u1edaI C\u1ee6A LU\u1eacN \u00c1N:<\/p>\n

(1) <\/em>Th\u00f4ng 5 l\u00e1 ph\u00e2n b\u1ed1 trong ki\u1ec3u r\u1eebng l\u00e1 r\u1ed9ng th\u01b0\u1eddng xanh c\u00f3 xen c\u00e2y l\u00e1 kim. C\u00f3 t\u1eeb 107 \u2013 130 lo\u00e0i c\u00e2y g\u1ed7 thu\u1ed9c 61 \u2013 78 chi v\u00e0 35 \u2013 42 h\u1ecd; Lo\u00e0i \u01b0u th\u1ebf t\u1eeb 5 \u2013 8 lo\u00e0i; Th\u00f4ng 5 l\u00e1 l\u00e0 lo\u00e0i \u01b0u th\u1ebf v\u1edbi IV% = 3,6% \u2013 12,2%. C\u00e2y g\u1ed7 t\u00e1i sinh bi\u1ebfn \u0111\u1ed9ng t\u1eeb 36 \u2013 97 lo\u00e0i; Lo\u00e0i c\u00e2y t\u00e1i sinh \u01b0u th\u1ebf t\u1eeb 4 \u2013 7 lo\u00e0i. Th\u00f4ng 5 l\u00e1 c\u00f3 ki\u1ec3u t\u00e1i sinh tu\u1ea7n ho\u00e0n theo v\u1ec7t n\u01a1i m\u1edf t\u00e1n. Ph\u00e2n b\u1ed1 N\/D<\/em> m\u00f4 ph\u1ecfng theo ph\u00e2n b\u1ed1 kho\u1ea3ng c\u00e1ch, d\u1ea1ng gi\u1ea3m ho\u1eb7c c\u00f3 \u0111\u1ec9nh \u1edf c\u1ea5p k\u00ednh th\u1ee9 2; ph\u00e2n b\u1ed1 N\/H<\/em> r\u1ea5t bi\u1ebfn \u0111\u1ed9ng, c\u00f3 d\u1ea1ng m\u1ed9t \u0111\u1ebfn nhi\u1ec1u \u0111\u1ec9nh t\u1eeb l\u1ec7ch tr\u00e1i sang ph\u1ea3i v\u00e0 kh\u00f3 ti\u1ebfp c\u1eadn theo m\u1ed9t quy lu\u1eadt ph\u00e2n b\u1ed1 chung. L\u00e2m ph\u1ea7n c\u00f3 ph\u00e2n b\u1ed1 c\u1ee5m \u1edf giai \u0111o\u1ea1n trung ni\u00ean, chuy\u1ec3n d\u1ea7n sang ng\u1eabu nhi\u00ean \u0111\u1ebfn \u0111\u1ec1u khi b\u1eaft \u0111\u1ea7u th\u00e0nh th\u1ee5c; Qu\u1ea7n th\u1ec3 Th\u00f4ng 5 l\u00e1 h\u1ea7u h\u1ebft c\u00f3 ph\u00e2n b\u1ed1 c\u1ee5m.<\/p>\n

(2) <\/em>M\u1eadt \u0111\u1ed9 ph\u00e2n b\u1ed1 Th\u00f4ng 5 l\u00e1 ch\u1ecbu \u1ea3nh h\u01b0\u1edfng b\u1edfi c\u00e1c nh\u00e2n t\u1ed1 sinh th\u00e1i ch\u00ednh: nh\u01b0 \u0111\u1ed9 cao so v\u1edbi m\u1eb7t n\u01b0\u1edbc bi\u1ec3n (DC<\/em>), \u0111\u1ed9 d\u00e0y t\u1ea7ng \u0111\u1ea5t (TDD<\/em>) v\u00e0 l\u01b0\u1ee3ng m\u01b0a trung b\u00ecnh n\u0103m (P<\/em>) qua m\u00f4 h\u00ecnh: \u00a0\u00a0<\/em>\u00a0N = P \u00d7 (0,890614 \u00d7 DC-0,0451131<\/sup> \u00d7 TDD0,540172<\/sup> \u00d7 P-0,9126<\/sup>)<\/em><\/p>\n

(3) <\/em>\u1ede t\u1ea7ng c\u00e2y g\u1ed7, Th\u00f4ng 5 l\u00e1 l\u00e0 lo\u00e0i c\u00f3 \u01b0u th\u1ebf sinh th\u00e1i v\u1edbi IV% = 4,5%, c\u00f3 quan h\u1ec7 ng\u1eabu nhi\u00ean v\u1edbi c\u00e1c lo\u00e0i Ch\u00f2 x\u00f3t, S\u1ed3i v\u00e0 quan h\u1ec7 d\u01b0\u01a1ng v\u1edbi lo\u00e0i H\u1ed3ng quang. \u1ede l\u1edbp c\u00e2y t\u00e1i sinh, Th\u00f4ng 5 l\u00e1 c\u00f3 quan h\u1ec7 d\u01b0\u01a1ng v\u1edbi lo\u00e0i Ch\u00f2 x\u00f3t v\u00e0 quan h\u1ec7 ng\u1eabu nhi\u00ean v\u1edbi c\u00e1c lo\u00e0i \u01b0u th\u1ebf kh\u00e1c.<\/p>\n

(4) <\/em>Nh\u00e2n t\u1ed1 nhi\u1ec7t \u0111\u1ed9, l\u01b0\u1ee3ng m\u01b0a theo th\u00e1ng c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn sinh tr\u01b0\u1edfng. T\u1ea1i cao nguy\u00ean L\u00e2m Vi\u1ec7n, khi gia t\u0103ng nhi\u1ec7t \u0111\u1ed9 trong m\u00f9a m\u01b0a (th\u00e1ng 6) ho\u1eb7c gia t\u0103ng l\u01b0\u1ee3ng m\u01b0a v\u00e0o cu\u1ed1i m\u00f9a m\u01b0a (th\u00e1ng 11) c\u00f3 t\u00e1c d\u1ee5ng th\u00fac \u0111\u1ea9y sinh tr\u01b0\u1edfng Th\u00f4ng 5 l\u00e1; t\u1ea1i c\u00e1c v\u00f9ng th\u1ea5p h\u01a1n nh\u01b0 \u1edf c\u00e1c cao nguy\u00ean Bu\u00f4n Ma Thu\u1ed9t, Pleiku th\u00ec gia t\u0103ng nhi\u1ec7t \u0111\u1ed9 trong m\u00f9a kh\u00f4 h\u1ea1n (th\u00e1ng 3 v\u00e0 th\u00e1ng 4) s\u1ebd l\u00e0m gi\u1ea3m sinh tr\u01b0\u1edfng Th\u00f4ng 5 l\u00e1.<\/p>\n

M\u00f4 h\u00ecnh sinh tr\u01b0\u1edfng, t\u0103ng tr\u01b0\u1edfng lo\u00e0i Th\u00f4ng 5 l\u00e1 \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp v\u00e0 th\u1ea9m \u0111\u1ecbnh ch\u00e9o sai s\u1ed1 cho ba v\u00f9ng ph\u00e2n b\u1ed1 sinh th\u00e1i. Quan h\u1ec7 H\/D<\/em> theo d\u1ea1ng Power H = ai<\/sub> \u00d7 Db<\/sup><\/em>, quan h\u1ec7 D\/A<\/em> theo h\u00e0m Mitscherlich D = 300\u00d7(1 \u2013 e(-ai<\/sub>\u00d7A))<\/em> v\u00e0 t\u1ef7 l\u1ec7 t\u0103ng tr\u01b0\u1edfng \u0111\u01b0\u1eddng k\u00ednh Pd\/D<\/em> theo d\u1ea1ng Power tham s\u1ed1 m\u0169 \u00e2m: Pd = a\u00d7Dbi<\/sup><\/em>, c\u00e1c tham s\u1ed1 ai<\/sub>, bi<\/sub> thay \u0111\u1ed5i theo v\u00f9ng ph\u00e2n b\u1ed1 sinh th\u00e1i i.<\/p>\n

(5)<\/em> \u0110\u00e3 x\u00e2y d\u1ef1ng b\u1ea3n \u0111\u1ed3 GIS c\u1ea5p m\u1eadt \u0111\u1ed9 ph\u00e2n b\u1ed1 qu\u1ea7n th\u1ec3 Th\u00f4ng 5 l\u00e1 c\u00f9ng v\u1edbi d\u1eef li\u1ec7u 10 nh\u00e2n t\u1ed1 sinh th\u00e1i t\u1ea1i T\u00e2y Nguy\u00ean ph\u1ee5c v\u1ee5 cho x\u00e1c \u0111\u1ecbnh v\u00f9ng ph\u00e2n b\u1ed1 t\u1eadp trung lo\u00e0i n\u00e0y \u0111\u1ec3 qu\u1ea3n l\u00fd b\u1ea3o t\u1ed3n v\u00e0 ph\u1ee5c h\u1ed3i qu\u1ea7n th\u1ec3 Th\u00f4ng 5 l\u00e1.<\/p>\n

(6) <\/em>C\u00e1c k\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u c\u00f3 th\u1ec3 \u1ee9ng d\u1ee5ng trong b\u1ea3o t\u1ed3n v\u00e0 ph\u00e1t tri\u1ec3n qu\u1ea7n th\u1ec3 Th\u00f4ng 5 l\u00e1 nh\u01b0: Ti\u1ebfp c\u1eadn m\u00f4 h\u00ecnh r\u1eebng h\u1ed7n giao trong ph\u1ee5c h\u1ed3i, b\u1ea3o t\u1ed3n qu\u1ea7n th\u1ec3 Th\u00f4ng 5 l\u00e1; Tr\u1ed3ng r\u1eebng h\u1ed7n giao, l\u00e0m gi\u00e0u r\u1eebng lo\u00e0i Th\u00f4ng 5 l\u00e1; X\u00e2y d\u1ef1ng m\u1eabu chu\u1ea9n r\u1eebng; Quy ho\u1ea1ch c\u00e1c v\u00f9ng b\u1ea3o t\u1ed3n v\u00e0 ph\u1ee5c h\u1ed3i qu\u1ea7n th\u1ec3 Th\u00f4ng 5 l\u00e1; D\u1ef1 \u0111o\u00e1n sinh tr\u01b0\u1edfng s\u1ea3n l\u01b0\u1ee3ng Th\u00f4ng 5 l\u00e1.<\/p>\n

Th\u00f4ng tin lu\u1eadn\u00a0\u00e1n v\u00e0 to\u00e0n v\u0103n lu\u1eadn\u00a0\u00e1n\u00a0\u0111\u00e3\u00a0\u0111\u01b0\u1ee3c\u00a0\u0111\u0103ng t\u1ea3i c\u00f4ng khai tr\u00ean trang th\u00f4ng tin c\u1ee7a B\u1ed9 Gi\u00e1o d\u1ee5c v\u00e0\u00a0\u0110\u00e0o t\u1ea1o t\u1ea1i\u00a0\u0111\u01b0\u1eddng link:\u00a0http:\/\/luanvan.moet.edu.vn\/?page=1.32&view=35639<\/a><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

T\u00ean \u0111\u1ec1 t\u00e0i lu\u1eadn \u00e1n: \u0110\u1eb7c \u0111i\u1ec3m l\u00e2m h\u1ecdc v\u00e0 sinh th\u00e1i qu\u1ea7n th\u1ec3 lo\u00e0i Th\u00f4ng 5 l\u00e1 (Pinus dalatensis Ferr\u00e9) \u1edf T\u00e2y Nguy\u00ean Chuy\u00ean ng\u00e0nh: L\u00e2m h\u1ecdc\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 M\u00e3 s\u1ed1: 9 62 02 05 H\u1ecd v\u00e0 t\u00ean nghi\u00ean c\u1ee9u sinh: L\u00ea C\u1ea3nh Nam H\u1ecd v\u00e0 t\u00ean c\u00e1n b\u1ed9 h\u01b0\u1edbng d\u1eabn: 1. GS.TS. B\u1ea3o Huy; 2. […]<\/p>\n","protected":false},"author":17,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[42,66],"tags":[],"_links":{"self":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/20452"}],"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\/17"}],"replies":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/comments?post=20452"}],"version-history":[{"count":1,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/20452\/revisions"}],"predecessor-version":[{"id":20453,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/20452\/revisions\/20453"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=20452"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=20452"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=20452"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}