{"id":9906,"date":"2012-11-29T08:25:02","date_gmt":"2012-11-29T01:25:02","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/2012\/11\/phan-tich-chi-so-da-dang-sinh-hoc-cua-thuc-vat-than-go-trong-khu-bao-ton-thien-nhien-son-tra-tp-da-nang\/"},"modified":"2015-05-19T13:31:24","modified_gmt":"2015-05-19T06:31:24","slug":"phan-tich-chi-so-da-dang-sinh-hoc-cua-thuc-vat-than-go-trong-khu-bao-ton-thien-nhien-son-tra-tp-da-nang","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/phan-tich-chi-so-da-dang-sinh-hoc-cua-thuc-vat-than-go-trong-khu-bao-ton-thien-nhien-son-tra-tp-da-nang\/","title":{"rendered":"Ph\u00e2n t\u00edch ch\u1ec9 s\u1ed1 \u0111a d\u1ea1ng sinh h\u1ecdc c\u1ee7a th\u1ef1c v\u1eadt th\u00e2n g\u1ed7 trong Khu b\u1ea3o t\u1ed3n thi\u00ean nhi\u00ean S\u01a1n Tr\u00e0 – Tp. \u0110\u00e0 N\u1eb5ng"},"content":{"rendered":"

Ph\u1ea1m Th\u1ecb Kim Thoa<\/strong><\/p>\n

Khoa M\u00f4i tr\u01b0\u1eddng, Tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc B\u00e1ch Khoa, \u0110\u1ea1i h\u1ecdc \u0110\u00e0 N\u1eb5ng<\/em><\/p>\n

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

Ph\u01b0\u01a1ng ph\u00e1p th\u1ef1c h\u00e0nh nghi\u00ean c\u1ee9u ph\u00e2n t\u00edch \u0111\u1ecbnh l\u01b0\u1ee3ng v\u1ec1 t\u00ednh \u0111a d\u1ea1ng sinh h\u1ecdc nh\u1eb1m \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c ch\u1ec9 s\u1ed1: ch\u1ec9 s\u1ed1 Shannon (H), ch\u1ec9 s\u1ed1 quan tr\u1ecdng (IVI), ch\u1ec9 s\u1ed1 m\u1ee9c \u0111\u1ed9 chi\u1ebfm \u01b0u th\u1ebf hay c\u00f2n g\u1ecdi l\u00e0 ch\u1ec9 s\u1ed1 Simpson (Cd), ch\u1ec9 s\u1ed1 t\u01b0\u01a1ng \u0111\u1ed3ng hay ch\u1ec9 s\u1ed1 Sorensen (SI). Khi gi\u00e1 tr\u1ecb c\u1ee7a c\u00e1c ch\u1ec9 s\u1ed1 cao ngh\u0129a l\u00e0 t\u00ednh \u0111a d\u1ea1ng cao t\u01b0\u01a1ng \u1ee9ng v\u1edbi gi\u00e1 tr\u1ecb sinh h\u1ecdc cao. \u0110\u00e2y l\u00e0 ph\u01b0\u01a1ng ph\u00e1p nghi\u00ean c\u1ee9u h\u1ebft s\u1ee9c c\u1ea7n thi\u1ebft nh\u1eb1m t\u1ea1o c\u01a1 s\u1edf d\u1eef li\u1ec7u cho c\u00e1c gi\u1ea3i ph\u00e1p b\u1ea3o t\u1ed3n, ho\u1ea1ch \u0111\u1ecbnh ch\u00ednh s\u00e1ch v\u00e0 k\u1ebf ho\u1ea1ch s\u1eed d\u1ee5ng b\u1ec1n v\u1eefng ngu\u1ed3n t\u00e0i nguy\u00ean \u0111a d\u1ea1ng sinh h\u1ecdc.<\/p>\n

L\u1ea7n \u0111\u1ea7u ti\u00ean \u00e1p d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 t\u00ednh \u0111a d\u1ea1ng sinh h\u1ecdc cho th\u1ef1c v\u1eadt th\u00e2n g\u1ed7 t\u1ea1i Khu b\u1ea3o t\u1ed3n thi\u00ean nhi\u00ean S\u01a1n Tr\u00e0 – th\u00e0nh ph\u1ed1 \u0110\u00e0 N\u1eb5ng. K\u1ebft qu\u1ea3 \u0111i\u1ec1u tra, kh\u1ea3o s\u00e1t \u1edf 12 \u00f4 ti\u00eau chu\u1ea9n ghi nh\u1eadn \u0111\u01b0\u1ee3c 96 lo\u00e0i th\u1ef1c v\u1eadt th\u00e2n g\u1ed7 tr\u00ean c\u00e1c sinh c\u1ea3nh kh\u00e1c nhau: r\u1eebng t\u1ef1 nhi\u00ean, r\u1eebng t\u1ef1 nhi\u00ean Ch\u00f2 ch\u1ec9, r\u1eebng tr\u1ed3ng, tr\u1ea3ng c\u1ecf, r\u1eebng t\u1ef1 nhi\u00ean ngh\u00e8o ki\u1ec7t v\u00e0 \u0111\u1ea5t tr\u1ed1ng. Ch\u1ec9 s\u1ed1 quan tr\u1ecdng (IVI) cho th\u1ea5y m\u1ed9t tr\u1eadt t\u1ef1 \u01b0u th\u1ebf trong qu\u1ea7n th\u1ec3 th\u1ef1c v\u1eadt nghi\u00ean c\u1ee9u, trong \u0111\u00f3 lo\u00e0i Ch\u00f2 ch\u1ec9 (Parashorea stellata Kurz) c\u00f3 \u01b0u th\u1ebf cao nh\u1ea5t (IVI = 35,38) v\u00e0 s\u1ef1 bi\u1ebfn \u0111\u1ed9ng c\u00e1 th\u1ec3 kh\u00e1 r\u00f5 r\u1ec7t trong c\u00e1c sinh c\u1ea3nh nghi\u00ean c\u1ee9u. Ch\u1ec9 s\u1ed1 Shannon (H)kh\u00e1 cao, dao \u0111\u1ed9ng t\u1eeb 1,62 \u0111\u1ebfn 4,76 (r\u1eebng t\u1ef1 nhi\u00ean, r\u1eebng t\u1ef1 nhi\u00ean Ch\u00f2 ch\u1ec9 t\u1eeb 3,61 \u0111\u1ebfn 4,76, r\u1eebng tr\u1ed3ng t\u1eeb 1,86 \u0111\u1ebfn 2,60, tr\u1ea3ng c\u1ecf 1,62, r\u1eebng t\u1ef1 nhi\u00ean ngh\u00e8o ki\u1ec7t 1,97 v\u00e0 \u0111\u1ea5t tr\u1ed1ng t\u1eeb 2,62 \u0111\u1ebfn 2,82. Ch\u1ec9 s\u1ed1 Cd thay \u0111\u1ed5i t\u1eeb 0,051 \u0111\u1ebfn 0,499 cho th\u1ea5y m\u1ee9c \u0111\u1ed9 \u0111a d\u1ea1ng sinh h\u1ecdc c\u1ee7a c\u00e1c qu\u1ea7n x\u00e3 \u0111ang c\u00f3 chi\u1ec1u h\u01b0\u1edbng gi\u1ea3m xu\u1ed1ng. Gi\u00e1 tr\u1ecb ch\u1ec9 s\u1ed1 SI c\u1ee7a th\u1ea3m th\u1ef1c v\u1eadt th\u00e2n g\u1ed7 gi\u1eefa c\u00e1c hi\u1ec7n tr\u01b0\u1eddng nghi\u00ean c\u1ee9u dao \u0111\u1ed9ng t\u1eeb 0,04 \u0111\u1ebfn 0,50 th\u1ec3 hi\u1ec7n m\u1ed9t s\u1ef1 kh\u00e1c bi\u1ec7t r\u1ea5t l\u1edbn v\u1ec1 th\u00e0nh ph\u1ea7n lo\u00e0i nghi\u00ean c\u1ee9u \u1edf c\u00e1c hi\u1ec7n tr\u01b0\u1eddng n\u00e0y. Nh\u01b0 v\u1eady \u0111a d\u1ea1ng sinh h\u1ecdc Khu BTTN S\u01a1n Tr\u00e0 l\u00e0 kh\u00e1 cao v\u00e0 \u0111ang b\u1ecb t\u00e1c \u0111\u1ed9ng b\u1edfi m\u00f4i tr\u01b0\u1eddng v\u00e0 c\u00e1c ho\u1ea1t \u0111\u1ed9ng ph\u00e1t tri\u1ec3n v\u00ec v\u1eady trong th\u1eddi gian t\u1edbi c\u1ea7n c\u00f3 c\u00e1c bi\u1ec7n ph\u00e1p b\u1ea3o t\u1ed3n ph\u00f9 h\u1ee3p.<\/p>\n

T\u1eeb kh\u00f3a:<\/strong> Ch\u1ec9 s\u1ed1 \u0111a d\u1ea1ng sinh h\u1ecdc, Th\u1ef1c v\u1eadt th\u00e2n g\u1ed7.<\/p>\n

T\u1ea1p ch\u00ed Khoa h\u1ecdc L\u00e2m nghi\u1ec7p s\u1ed1 3 n\u0103m 2012, trang 2301-2309<\/em><\/p>\n

<\/div>\n","protected":false},"excerpt":{"rendered":"

<\/p>\n

\nPh\u01b0\u01a1ng pháp th\u1ef1c hành nghiên c\u1ee9u phân tích \u0111\u1ecbnh l\u01b0\u1ee3ng v\u1ec1 tính \u0111a d\u1ea1ng
\nsinh h\u1ecdc nh\u1eb1m \u0111\u1ec3 xác \u0111\u1ecbnh các ch\u1ec9 s\u1ed1: ch\u1ec9 s\u1ed1 Shannon (H), ch\u1ec9 s\u1ed1 quan tr\u1ecdng
\n(IVI), ch\u1ec9 s\u1ed1 m\u1ee9c \u0111\u1ed9 chi\u1ebfm \u01b0u th\u1ebf hay còn g\u1ecdi là ch\u1ec9 s\u1ed1 Simpson (Cd), ch\u1ec9 s\u1ed1
\nt\u01b0\u01a1ng \u0111\u1ed3ng hay ch\u1ec9 s\u1ed1 Sorensen (SI). Khi giá tr\u1ecb c\u1ee7a các ch\u1ec9 s\u1ed1 cao ngh\u0129a là
\ntính \u0111a d\u1ea1ng cao t\u01b0\u01a1ng \u1ee9ng v\u1edbi giá tr\u1ecb sinh h\u1ecdc cao. \u0110ây là ph\u01b0\u01a1ng pháp nghiên
\nc\u1ee9u h\u1ebft s\u1ee9c c\u1ea7n thi\u1ebft nh\u1eb1m t\u1ea1o c\u01a1 s\u1edf d\u1eef li\u1ec7u cho các gi\u1ea3i pháp b\u1ea3o t\u1ed3n, ho\u1ea1ch
\n\u0111\u1ecbnh chính sách và k\u1ebf ho\u1ea1ch s\u1eed d\u1ee5ng b\u1ec1n v\u1eefng ngu\u1ed3n tài nguyên \u0111a d\u1ea1ng sinh h\u1ecdc.
\n<\/span>\n<\/p>\n

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