{"id":15107,"date":"2015-05-08T09:50:43","date_gmt":"2015-05-08T02:50:43","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/?p=15107"},"modified":"2019-09-24T15:30:01","modified_gmt":"2019-09-24T08:30:01","slug":"bao-cao-ket-qua-de-tai-nghien-cuu-ky-thuat-trong-rung-ngap-man-tren-cac-dieu-kien-lap-dia-kho-khan-gop-phan-chan-song-vung-ven-bien-cac-tinh-mien-bac-viet-nam","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/bao-cao-ket-qua-de-tai-nghien-cuu-ky-thuat-trong-rung-ngap-man-tren-cac-dieu-kien-lap-dia-kho-khan-gop-phan-chan-song-vung-ven-bien-cac-tinh-mien-bac-viet-nam\/","title":{"rendered":"B\u00e1o c\u00e1o k\u1ebft qu\u1ea3 \u0111\u1ec1 t\u00e0i: Nghi\u00ean c\u1ee9u k\u1ef9 thu\u1eadt tr\u1ed3ng r\u1eebng ng\u1eadp m\u1eb7n tr\u00ean c\u00e1c \u0111i\u1ec1u ki\u1ec7n l\u1eadp \u0111\u1ecba kh\u00f3 kh\u0103n g\u00f3p ph\u1ea7n ch\u1eafn s\u00f3ng v\u00f9ng ven bi\u1ec3n c\u00e1c t\u1ec9nh mi\u1ec1n B\u1eafc Vi\u1ec7t Nam"},"content":{"rendered":"

\u0110o\u00e0n \u0110\u00ecnh Tam<\/em><\/p>\n

1. \u0110\u1eb7t v\u1ea5n \u0111\u1ec1<\/b><\/p>\n

R\u1eebng ng\u1eadp m\u1eb7n c\u00f3 vai tr\u00f2 r\u1ea5t l\u1edbn trong vi\u1ec7c b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng \u0111\u1eb7c bi\u1ec7t l\u00e0 ch\u1eafn s\u00f3ng b\u1ea3o v\u1ec7 \u0111\u00ea bi\u1ec3n nh\u1ea5t l\u00e0 sau khi x\u1ea3y ra th\u1ea3m ho\u1ea1 s\u00f3ng th\u1ea7n \u1edf Tsynami.<\/p>\n

Vi\u1ec7c tr\u1ed3ng r\u1eebng ng\u1eadp m\u1eb7n hi\u1ec7n nay nh\u00ecn chung l\u00e0 thu\u1eadn l\u1ee3i, t\u1ef7 l\u1ec7 th\u00e0nh r\u1eebng t\u01b0\u01a1ng \u0111\u1ed1i cao do vi\u1ec7c ph\u00e2n b\u1ed1 c\u1ee7a r\u1eebng ng\u1eadp m\u1eb7n th\u01b0\u1eddng g\u1eafn v\u1edbi \u0111\u1eb7c \u0111i\u1ec3m \u0111\u1ea5t ph\u00f9 sa v\u00e0 \u0111\u1eb7c \u0111i\u1ec3m thu\u1ef7 tri\u1ec1u. \u1ede v\u00f9ng ven bi\u1ec3n ph\u00eda B\u1eafc, r\u1eebng ng\u1eadp m\u1eb7n g\u00e2y tr\u1ed3ng chi\u1ebfm m\u1ed9t t\u1ef7 l\u1ec7 l\u1edbn. Tuy nhi\u00ean, trong th\u1ef1c ti\u1ec5n kh\u00f4ng ph\u1ea3i ch\u1ed7 n\u00e0o c\u0169ng c\u00f3 r\u1eebng ng\u1eadp m\u1eb7n ph\u00e2n b\u1ed1 t\u1ef1 nhi\u00ean ho\u1eb7c g\u00e2y tr\u1ed3ng r\u1eebng ng\u1eadp m\u1eb7n m\u1ed9t c\u00e1ch thu\u1eadn l\u1ee3i cho d\u00f9 \u1edf \u0111\u00f3 r\u1ea5t c\u1ea7n thi\u1ebft ph\u1ea3i x\u00e2y d\u1ef1ng m\u1ed9t h\u1ec7 th\u1ed1ng r\u1eebng ng\u1eadp m\u1eb7n nh\u1eb1m ch\u1eafn s\u00f3ng bi\u1ec3n, b\u1ea3o v\u1ec7 \u0111\u00ea \u0111i\u1ec1u, ch\u1ed1ng s\u1ee5t l\u1edf b\u1edd bi\u1ec3n, h\u1ea1n ch\u1ebf t\u00e1c h\u1ea1i c\u1ee7a gi\u00f3 b\u00e3o,\u2026<\/p>\n

Nghi\u00ean c\u1ee9u k\u1ef9 thu\u1eadt tr\u1ed3ng r\u1eebng ng\u1eadp m\u1eb7n tr\u00ean c\u00e1c \u0111i\u1ec1u ki\u1ec7n l\u1eadp \u0111\u1ecba kh\u00f3 kh\u0103n g\u00f3p\u00a0 ph\u1ea7n ch\u1eafn s\u00f3ng v\u00f9ng ven bi\u1ec3n mi\u1ec1n B\u1eafc Vi\u1ec7t Nam \u0111\u01b0\u1ee3c \u0111\u1eb7t ra l\u00e0 h\u1ebft s\u1ee9c c\u1ea7n thi\u1ebft, nh\u1eb1m x\u00e2y d\u1ef1ng nh\u1eefng c\u01a1 s\u1edf khoa h\u1ecdc c\u1ea3 v\u1ec1 l\u00fd lu\u1eadn v\u00e0 th\u1ef1c ti\u1ec5n, g\u00f3p ph\u1ea7n ch\u1eafn s\u00f3ng, b\u1ea3o v\u1ec7 \u0111\u00ea bi\u1ec3n ph\u00f2ng tr\u00e1nh x\u00f3i l\u1edf b\u1edd bi\u1ec3n c\u0169ng nh\u01b0 gi\u1ea3m thi\u1ec3u t\u00e1c h\u1ea1i c\u1ee7a gi\u00f3 b\u00e3o, s\u00f3ng t\u1edbi m\u00f4i tr\u01b0\u1eddng v\u00f9ng ven bi\u1ec3n v\u00e0 kh\u00f4i ph\u1ee5c nh\u1eefng di\u1ec7n t\u00edch \u0111\u1ea5t ng\u1eadp m\u1eb7n b\u1ecb tho\u00e1i ho\u00e1<\/p>\n

2. N\u1ed9i dung v\u00e0 ph\u01b0\u01a1ng ph\u00e1p nghi\u00ean c\u1ee9u<\/b><\/p>\n

2.1. N\u1ed9i dung nghi\u00ean c\u1ee9u<\/i><\/b><\/p>\n

– T\u1ed5ng k\u1ebft v\u00e0 \u0111\u00e1nh gi\u00e1 th\u1ef1c tr\u1ea1ng tr\u1ed3ng r\u1eebng ng\u1eadp m\u1eb7n tr\u00ean c\u00e1c \u0111i\u1ec1u ki\u1ec7n l\u1eadp \u0111\u1ecba kh\u00e1c nhau t\u1ea1i v\u00f9ng ven bi\u1ec3n mi\u1ec1n B\u1eafc<\/p>\n

– Nghi\u00ean c\u1ee9u ph\u00e2n lo\u1ea1i c\u00e1c \u0111i\u1ec1u ki\u1ec7n l\u1eadp \u0111\u1ecba kh\u00f3 kh\u0103n v\u00f9ng ven bi\u1ec3n mi\u1ec1n B\u1eafc<\/p>\n

– Nghi\u00ean c\u1ee9u k\u1ef9 thu\u1eadt tr\u1ed3ng r\u1eebng ng\u1eadp m\u1eb7n tr\u00ean m\u1ed9t s\u1ed1 d\u1ea1ng l\u1eadp \u0111\u1ecba kh\u00f3 kh\u0103n<\/p>\n

2.2. Ph\u01b0\u01a1ng ph\u00e1p nghi\u00ean c\u1ee9u<\/i><\/b><\/p>\n

– S\u1eed d\u1ee5ng c\u00f4ng c\u1ee5 PRA \u0111\u1ec3 thu th\u1eadp c\u00e1c th\u00f4ng tin (di\u1ec7n t\u00edch, k\u1ef9 thu\u1eadt tr\u1ed3ng, su\u1ea5t \u0111\u1ea7u t\u01b0, kh\u00ed h\u1eadu, thu\u1ef7 v\u0103n,\u2026)<\/p>\n

– S\u1ee7 d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p tra sinh th\u00e1i v\u00e0 \u0111i\u1ec1u tra l\u00e2m h\u1ecdc \u0111\u1ec3 thu th\u1eadp c\u00e1c s\u1ed1 li\u1ec7u t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng<\/p>\n

– S\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p ph\u00e2n lo\u1ea1i l\u1eadp \u0111\u1ecba v\u00e0 \u0111i\u1ec1u tra l\u1eadp \u0111\u1ecba \u0111\u1ec3 ph\u00e2n chia c\u00e1c \u0111i\u1ec1u ki\u1ec7n l\u1eadp \u0111\u1ecba kh\u00f3 kh\u0103n<\/p>\n

– S\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p l\u00e2m sinh th\u1ef1c nghi\u1ec7m \u0111\u1ec3 thi\u1ebft k\u1ebf v\u00e0 x\u00e2y d\u1ef1ng c\u00e1c m\u00f4 h\u00ecnh th\u00ed nghi\u1ec7m tr\u00ean m\u1ed9t s\u1ed1 \u0111i\u1ec1u ki\u1ec7n l\u1eadp \u0111\u1ecba kh\u00f3 kh\u0103n (ng\u1eadp tri\u1ec1u cao, ng\u1eadp tri\u1ec1u s\u00e2u, \u0111\u1ea5t c\u00e1t d\u00ednh, \u0111\u1ea5t pha s\u1ecfi \u0111\u00e1, kh\u00f4i ph\u1ee5c \u0111\u1ea7m t\u00f4m) t\u1ea1i c\u00e1c \u0111\u1ecba \u0111i\u1ec3m l\u1ef1a ch\u1ecdn.<\/p>\n

– S\u1eed d\u1ee5ng c\u00e1c ph\u1ea7n m\u1ec1m SPSS v\u00e0 Excel \u0111\u1ec3 x\u1eed l\u00fd c\u00e1c s\u1ed1 li\u1ec7u<\/p>\n

\"15-05-08<\/a><\/p>\n

3. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u<\/b><\/p>\n

3.1. Th\u1ef1c tr\u1ea1ng r\u1eebng ng\u1eadp m\u1eb7n t\u1ea1i v\u00f9ng ven bi\u1ec3n mi\u1ec1n B\u1eafc<\/i><\/b><\/p>\n

-Di\u1ec7n t\u00edch \u0111\u1ea5t ng\u1eadp m\u1eb7n \u1edf Qu\u1ea3ng Ninh l\u1edbn nh\u1ea5t v\u1edbi 45.358 ha, chi\u1ebfm 35,5% t\u1ed5ng di\u1ec7n t\u00edch \u0111\u1ea5t ng\u1eadp m\u1eb7n to\u00e0n v\u00f9ng; sau \u0111\u00f3 \u0111\u1ebfn H\u1ea3i Ph\u00f2ng chi\u1ebfm 19,3%, Th\u00e1i B\u00ecnh 19,1%, Nam \u0110\u1ecbnh 16,3%, Thanh Ho\u00e1 6,8% v\u00e0 \u00edt nh\u1ea5t l\u00e0 Ninh B\u00ecnh chi\u1ebfm 3%.<\/p>\n

-Di\u1ec7n t\u00edch \u0111\u1ea5t c\u00f3 r\u1eebng ng\u1eadp m\u1eb7n t\u1ea1i Qu\u1ea3ng Ninh l\u00e0 l\u1edbn nh\u1ea5t, chi\u1ebfm 48% di\u1ec7n t\u00edch \u0111\u1ea5t ng\u1eadp m\u1eb7n c\u1ee7a to\u00e0n t\u1ec9nh. H\u1ea3i Ph\u00f2ng l\u00e0 t\u1ec9nh c\u00f3 di\u1ec7n t\u00edch \u0111\u1ea5t ng\u1eadp m\u1eb7n l\u1edbn th\u1ee9 hai v\u1edbi 24.578 ha (chi\u1ebfm 19,3% t\u1ed5ng di\u1ec7n t\u00edch \u0111\u1ea5t ng\u1eadp m\u1eb7n to\u00e0n v\u00f9ng), tuy nhi\u00ean di\u1ec7n t\u00edch c\u00f3 r\u1eebng ch\u1ec9 chi\u1ebfm 23,8% di\u1ec7n t\u00edch \u0111\u1ea5t ng\u1eadp m\u1eb7n c\u1ee7a t\u1ec9nh<\/p>\n

B\u1ea3ng 1: Di\u1ec7n t\u00edch \u0111\u1ea5t v\u00e0 r\u1eebng ng\u1eadp m\u1eb7n c\u1ee7a c\u00e1c t\u1ec9nh ven bi\u1ec3n mi\u1ec1n B\u1eafc Vi\u1ec7t Nam<\/b><\/p>\n\n\n\n\n\n\n\n\n\n\n\n
\n

T\u1ec9nh<\/b><\/p>\n<\/td>\n

\n

Di\u1ec7n t\u00edch \u0111\u1ea5t ng\u1eadp m\u1eb7n<\/b><\/p>\n<\/td>\n

\n

T\u1ef7 l\u1ec7 %<\/b><\/p>\n<\/td>\n

\n

D.t\u00edch c\u00f3 r\u1eebng<\/b><\/p>\n<\/td>\n

\n

D.t\u00edch kh\u00f4ng c\u00f3 r\u1eebng<\/b><\/p>\n<\/td>\n

\n

D.t\u00edch nu\u00f4i t\u00f4m<\/b><\/p>\n<\/td>\n<\/tr>\n

\n

Ha<\/i><\/b><\/p>\n<\/td>\n

\n

%<\/i><\/b><\/p>\n<\/td>\n

\n

Ha<\/i><\/b><\/p>\n<\/td>\n

\n

%<\/i><\/b><\/p>\n<\/td>\n

\n

Ha<\/i><\/b><\/p>\n<\/td>\n

\n

%<\/i><\/b><\/p>\n<\/td>\n<\/tr>\n

\n

Q.Ninh<\/p>\n<\/td>\n

\n

45.358<\/p>\n<\/td>\n

\n

100<\/p>\n<\/td>\n

\n

35,53<\/p>\n<\/td>\n

\n

21.782<\/p>\n<\/td>\n

\n

48,02<\/p>\n<\/td>\n

\n

9.558<\/p>\n<\/td>\n

\n

21,07<\/p>\n<\/td>\n

\n

14.018<\/p>\n<\/td>\n

\n

30,91<\/p>\n<\/td>\n<\/tr>\n

\n

H\u1ea3i Ph\u00f2ng<\/p>\n<\/td>\n

\n

24.578<\/p>\n<\/td>\n

\n

100<\/p>\n<\/td>\n

\n

19,25<\/p>\n<\/td>\n

\n

5.857<\/p>\n<\/td>\n

\n

23,83<\/p>\n<\/td>\n

\n

6.106<\/p>\n<\/td>\n

\n

24,84<\/p>\n<\/td>\n

\n

12.615<\/p>\n<\/td>\n

\n

51,33<\/p>\n<\/td>\n<\/tr>\n

\n

Th\u00e1i B\u00ecnh<\/p>\n<\/td>\n

\n

24.351<\/p>\n<\/td>\n

\n

100<\/p>\n<\/td>\n

\n

19,08<\/p>\n<\/td>\n

\n

8.973<\/p>\n<\/td>\n

\n

36,85<\/p>\n<\/td>\n

\n

12.526<\/p>\n<\/td>\n

\n

51,44<\/p>\n<\/td>\n

\n

2.852<\/p>\n<\/td>\n

\n

11,71<\/p>\n<\/td>\n<\/tr>\n

\n

Nam \u0110\u1ecbnh<\/p>\n<\/td>\n

\n

20.841<\/p>\n<\/td>\n

\n

100<\/p>\n<\/td>\n

\n

16,33<\/p>\n<\/td>\n

\n

10.050<\/p>\n<\/td>\n

\n

48,22<\/p>\n<\/td>\n

\n

7.291<\/p>\n<\/td>\n

\n

34,98<\/p>\n<\/td>\n

\n

3.500<\/p>\n<\/td>\n

\n

16,79<\/p>\n<\/td>\n<\/tr>\n

\n

Ninh B\u00ecnh<\/p>\n<\/td>\n

\n

3.837<\/p>\n<\/td>\n

\n

100<\/p>\n<\/td>\n

\n

3,01<\/p>\n<\/td>\n

\n

1.233<\/p>\n<\/td>\n

\n

32,13<\/p>\n<\/td>\n

\n

1.282<\/p>\n<\/td>\n

\n

33,41<\/p>\n<\/td>\n

\n

1.322<\/p>\n<\/td>\n

\n

34,45<\/p>\n<\/td>\n<\/tr>\n

\n

Thanh Ho\u00e1<\/p>\n<\/td>\n

\n

8.682<\/p>\n<\/td>\n

\n

100<\/p>\n<\/td>\n

\n

6,80<\/p>\n<\/td>\n

\n

708<\/p>\n<\/td>\n

\n

8,15<\/p>\n<\/td>\n

\n

4.654<\/p>\n<\/td>\n

\n

5361<\/p>\n<\/td>\n

\n

3.320<\/p>\n<\/td>\n

\n

38,24<\/p>\n<\/td>\n<\/tr>\n

\n

T\u1ed5ng<\/b><\/p>\n<\/td>\n

\n

127.647<\/b><\/p>\n<\/td>\n

\n

\u00a0<\/b><\/p>\n<\/td>\n

\n

100<\/b><\/p>\n<\/td>\n

\n

48.603<\/b><\/p>\n<\/td>\n

\n

38.08<\/b><\/p>\n<\/td>\n

\n

41.417<\/b><\/p>\n<\/td>\n

\n

32,45<\/b><\/p>\n<\/td>\n

\n

37.627<\/b><\/p>\n<\/td>\n

\n

29,48<\/b><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

V\u1edbi di\u1ec7n t\u00edch r\u1eebng 48.603 ha, trong \u0111\u00f3 c\u00f3 25.912 ha l\u00e0 r\u1eebng t\u1ef1 nhi\u00ean, ph\u00e2n b\u1ed1 ch\u1ee7 y\u1ebfu t\u1ea1i hai t\u1ec9nh Qu\u1ea3ng Ninh v\u00e0 Nam \u0110\u1ecbnh v\u00e0 m\u1ed9t di\u1ec7n t\u00edch nh\u1ecf t\u1ea1i H\u1ea3i Ph\u00f2ng. C\u00e1c di\u1ec7n t\u00edch r\u1eebng c\u00f2n l\u1ea1i ch\u1ee7 y\u1ebfu l\u00e0 r\u1eebng tr\u1ed3ng v\u1edbi 22.691 ha, ch\u1ee7 y\u1ebfu l\u00e0 r\u1eebng ph\u00f2ng h\u1ed9, ch\u1ec9 c\u00f3 2.259 ha r\u1eebng tr\u1ed3ng l\u00e0 r\u1eebng \u0111\u1eb7c d\u1ee5ng \u0111\u01b0\u1ee3c tr\u1ed3ng t\u1ea1i Th\u00e1i B\u00ecnh.<\/p>\n

B\u1ea3ng 2. Di\u1ec7n t\u00edch r\u1eebng ph\u00e2n theo ch\u1ee9c n\u0103ng<\/b><\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

T\u1ec9nh<\/b><\/b><\/p>\n<\/td>\n

\n

T\u1ed5ng di\u1ec7n t\u00edch (ha)<\/b><\/b><\/p>\n<\/td>\n

\n

Di\u1ec7n t\u00edch r\u1eebng(ha)<\/b><\/b><\/p>\n<\/td>\n<\/tr>\n

\n

R.t\u1ef1 nhi\u00ean<\/b><\/b><\/p>\n<\/td>\n

\n

R\u1eebng tr\u1ed3ng<\/b><\/b><\/p>\n<\/td>\n<\/tr>\n

\n

Ph\u00f2ng h\u1ed9<\/b><\/b><\/p>\n<\/td>\n

\n

\u0110\u1eb7c d\u1ee5ng<\/b><\/b><\/p>\n<\/td>\n

\n

Ph\u00f2ng h\u1ed9<\/b><\/b><\/p>\n<\/td>\n

\n

\u0110\u1eb7c d\u1ee5ng<\/b><\/b><\/p>\n<\/td>\n<\/tr>\n

Qu\u1ea3ng Ninh<\/td>\n\n

21.782<\/p>\n<\/td>\n

\n

19.856<\/p>\n<\/td>\n

<\/td>\n\n

1.926<\/p>\n<\/td>\n

<\/td>\n<\/tr>\n
H\u1ea3i Ph\u00f2ng<\/td>\n\n

5.857<\/p>\n<\/td>\n

\n

411<\/p>\n<\/td>\n

<\/td>\n\n

5.446<\/p>\n<\/td>\n

<\/td>\n<\/tr>\n
Th\u00e1i B\u00ecnh<\/td>\n\n

8.973<\/p>\n<\/td>\n

<\/td>\n<\/td>\n\n

6.714<\/p>\n<\/td>\n

\n

2.259<\/p>\n<\/td>\n<\/tr>\n

Nam \u0110\u1ecbnh<\/td>\n\n

10.050<\/p>\n<\/td>\n

<\/td>\n\n

5.645<\/p>\n<\/td>\n

\n

4.405<\/p>\n<\/td>\n

<\/td>\n<\/tr>\n
Ninh B\u00ecnh<\/td>\n\n

1.233<\/p>\n<\/td>\n

<\/td>\n<\/td>\n\n

1.233<\/p>\n<\/td>\n

<\/td>\n<\/tr>\n
Thanh Ho\u00e1<\/td>\n\n

708<\/p>\n<\/td>\n

<\/td>\n<\/td>\n\n

708<\/p>\n<\/td>\n

<\/td>\n<\/tr>\n
T\u1ed5ng<\/b><\/b><\/td>\n\n

48.603<\/b><\/p>\n<\/td>\n

\n

20.267<\/b><\/p>\n<\/td>\n

\n

5.645<\/b><\/p>\n<\/td>\n

\n

20.432<\/b><\/p>\n<\/td>\n

\n

2.259<\/b><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Trong nh\u1eefng n\u0103m qua, c\u00e1c t\u1ec9nh ven bi\u1ec3n mi\u1ec1n B\u1eafc \u0111\u00e3 tr\u1ed3ng \u0111\u01b0\u1ee3c m\u1ed9t di\u1ec7n t\u00edch r\u1eebng t\u01b0\u01a1ng \u0111\u1ed1i l\u1edbn th\u00f4ng qua c\u00e1c ch\u01b0\u01a1ng tr\u00ecnh, d\u1ef1 \u00e1n \u0111\u1ea7u t\u01b0 trong v\u00e0 ngo\u00e0i n\u01b0\u1edbc.<\/p>\n

B\u1ea3ng 3. Di\u1ec7n t\u00edch r\u1eebng tr\u1ed3ng c\u1ee7a c\u00e1c \u0111\u1ecba ph\u01b0\u01a1ng<\/b><\/p>\n

\n\n\n\n\n\n\n\n\n\n\n
\n

T\u1ec9nh<\/b><\/p>\n<\/td>\n

\n

C\u00e1c d\u1ef1 \u00e1n tr\u1ed3ng r\u1eebng (ha)<\/b><\/p>\n<\/td>\n

\n

DT c\u00f2n l\u1ea1i<\/b><\/p>\n<\/td>\n

\n

T\u1ef7 l\u1ec7 %<\/b><\/p>\n<\/td>\n

\n

Su\u1ea5t \u0111\u1ea7u t\u01b0<\/b><\/p>\n<\/td>\n<\/tr>\n

\n

CT\u0110<\/i><\/b><\/p>\n<\/td>\n

\n

PAM<\/i><\/b><\/p>\n<\/td>\n

\n

661<\/i><\/b><\/p>\n<\/td>\n

\n

Kh\u00e1c<\/i><\/b><\/p>\n<\/td>\n

\n

T\u1ed5ng<\/i><\/b><\/p>\n<\/td>\n<\/tr>\n

Qu\u1ea3ng Ninh<\/td>\n\n

1.933<\/p>\n<\/td>\n

\n

463<\/p>\n<\/td>\n

\n

840<\/p>\n<\/td>\n

\n

1.350<\/p>\n<\/td>\n

\n

4.586<\/p>\n<\/td>\n

\n

1.926<\/p>\n<\/td>\n

\n

42<\/p>\n<\/td>\n

\n

1.283.000<\/p>\n<\/td>\n<\/tr>\n

H\u1ea3i Ph\u00f2ng<\/td>\n\n

3046.<\/p>\n<\/td>\n

\n

550<\/p>\n<\/td>\n

\n

1.400<\/p>\n<\/td>\n

\n

450<\/p>\n<\/td>\n

\n

5.446<\/p>\n<\/td>\n

\n

2.077,44<\/p>\n<\/td>\n

\n

38<\/p>\n<\/td>\n

\n

1.42.5000<\/p>\n<\/td>\n<\/tr>\n

Th\u00e1i B\u00ecnh<\/td>\n\n

2.354<\/p>\n<\/td>\n

<\/td>\n\n

5.687<\/p>\n<\/td>\n

\n

941<\/p>\n<\/td>\n

\n

8.982<\/p>\n<\/td>\n

\n

3.343,89<\/p>\n<\/td>\n

\n

37<\/p>\n<\/td>\n

\n

1.425.000<\/p>\n<\/td>\n<\/tr>\n

Nam \u0110\u1ecbnh<\/td>\n\n

1.300<\/p>\n<\/td>\n

\n

550<\/p>\n<\/td>\n

\n

1.450<\/p>\n<\/td>\n

\n

1.105<\/p>\n<\/td>\n

\n

4.405<\/p>\n<\/td>\n

\n

1.622,5<\/p>\n<\/td>\n

\n

37<\/p>\n<\/td>\n

\n

1.566.000<\/p>\n<\/td>\n<\/tr>\n

Ninh B\u00ecnh<\/td>\n\n

595<\/p>\n<\/td>\n

<\/td>\n\n

438<\/p>\n<\/td>\n

\n

200<\/p>\n<\/td>\n

\n

1.233<\/p>\n<\/td>\n

\n

442<\/p>\n<\/td>\n

\n

36<\/p>\n<\/td>\n

\n

1.425.000<\/p>\n<\/td>\n<\/tr>\n

Thanh Ho\u00e1<\/td>\n\n

1.142,5<\/p>\n<\/td>\n

\n

255<\/p>\n<\/td>\n

<\/td>\n\n

115<\/p>\n<\/td>\n

\n

1.512,5<\/p>\n<\/td>\n

\n

708.1<\/p>\n<\/td>\n

\n

47<\/p>\n<\/td>\n

\n

933.300<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

C\u00e1c lo\u00e0i c\u00e2y tr\u1ed3ng ch\u1ee7 y\u1ebfu t\u1ea1i c\u00e1c \u0111\u1ecba \u0111i\u1ec3m nghi\u00ean c\u1ee9u l\u00e0 B\u1ea7n chua, Trang, S\u00fa, M\u1eafm, \u0110\u01b0\u1edbc, V\u1eb9t v\u1edbi c\u00e1c ph\u01b0\u01a1ng th\u1ee9c tr\u1ed3ng h\u1ed7n giao ho\u1eb7c thu\u1ea7n lo\u00e0i. Tuy nhi\u00ean, theo th\u1ed1ng k\u00ea \u0111\u1ebfn th\u1eddi \u0111i\u1ec3m 2009, t\u1ef7 l\u1ec7 s\u1ed1ng c\u1ee7a r\u1eebng ch\u1ec9 \u0111\u1ea1t trung b\u00ecnh 42%, nhi\u1ec1u di\u1ec7n t\u00edch r\u1eebng \u0111\u00e3 ch\u1ebft 80 \u2013 90% c\u00f3 n\u01a1i 100%.<\/p>\n

C\u00e1c m\u00f4 h\u00ecnh tr\u1ed3ng r\u1eebng ch\u1ee7 y\u1ebfu l\u00e0 tr\u1ed3ng r\u1eebng l\u1ea5n bi\u1ec3n tr\u00ean c\u00e1c d\u1ea3i b\u00e3i b\u1ed3i ch\u01b0a c\u00f3 r\u1eebng ho\u1eb7c tr\u1ed3ng d\u1eb7m b\u1ed5 sung v\u00e0o c\u00e1c di\u1ec7n t\u00edch \u0111\u1ea5t tr\u1ed1ng t\u1ea1i c\u00e1c n\u01a1i \u0111\u00e3 c\u00f3 r\u1eebng tr\u00ean \u0111\u1ea5t c\u00f3 \u0111\u1ed9 th\u00e0nh th\u1ee5c cao v\u1edbi c\u00e1c bi\u1ec7n ph\u00e1p k\u1ef9 thu\u1eadt truy\u1ec1n th\u1ed1ng nh\u01b0 tr\u1ed3ng b\u1eb1ng c\u00e2y con d\u1ec5 tr\u1ea7n (b\u1ea7n chua) v\u00e0 tr\u1ee5 m\u1ea7m thu h\u00e1i ngo\u00e0i t\u1ef1 nhi\u00ean (trang, v\u1eb9t, \u0111\u01b0\u1edbc,\u2026) v\u1edbi m\u1eadt \u0111\u1ed9 dao \u0111\u1ed9ng t\u1eeb 5000 \u0111\u1ebfn 16000 c\u00e2y\/ha, v\u1edbi m\u1ee9c \u0111\u1ea7u t\u01b0 trung b\u00ecnh < 1.500.000\u0111\/ha. L\u01b0\u1ee3ng t\u0103ng tr\u01b0\u1edfng \u0111\u01b0\u1eddng k\u00ednh b\u00ecnh qu\u00e2n (\u2206 D00<\/sub>) c\u1ee7a c\u00e1c lo\u00e0i c\u00e2y ng\u1eadp m\u1eb7n \u1edf nh\u1eefng n\u0103m \u0111\u1ea7u d\u01b0\u1edbi 0,5 cm, l\u01b0\u1ee3ng t\u0103ng tr\u01b0\u1edfng Hvn trung b\u00ecnh (\u2206 Hvn) d\u01b0\u1edbi 0,3m. Trong \u0111\u00f3 V\u1eb9t d\u00f9\u00a0 (\u2206 D00<\/sub> = 0,4 \u2013 0,6cm\/n\u0103m v\u00e0 \u2206 Hvn = 0,2 \u2013 0,3m\/n\u0103m), \u0110\u01b0\u1edbc v\u00f2i (\u2206 D00<\/sub> = 0,4 \u2013 0,5cm\/n\u0103m v\u00e0 \u2206 Hvn = 0,25 \u2013 0,4 m\/n\u0103m), Trang (\u2206 D00<\/sub> = 0,3 \u2013 0,4 cm\/n\u0103m v\u00e0 \u2206 Hvn = 0,15 \u2013 0,2m\/n\u0103m), B\u1ea7n chua (\u2206 D00<\/sub> = 3 \u2013 4 cm\/n\u0103m; \u2206 Hvn\u00a0 = 0,6 \u2013 0,8 m\/n\u0103m).<\/p>\n

Hi\u1ec7n nay, \u0111\u00e3 c\u00f3 nh\u1eefng m\u00f4 h\u00ecnh nghi\u00ean c\u1ee9u, th\u1eed nghi\u1ec7m tr\u1ed3ng RNM tr\u00ean c\u00e1c \u0111i\u1ec1u ki\u1ec7n l\u1eadp \u0111\u1ecba kh\u00f3 kh\u0103n v\u1edbi su\u1ea5t \u0111\u1ea7u t\u01b0 l\u1edbn nh\u01b0; tr\u1ed3ng B\u1ea7n chua tr\u00ean b\u00e3i c\u00e1t \u0111en t\u1ea1i Ki\u1ebfn Thu\u1ef5 – H\u1ea3i Ph\u00f2ng v\u00e0 H\u1eadu L\u1ed9c \u2013 Thanh Ho\u00e1, m\u1eadt \u0111\u1ed9 1600 c\u00e2y\/ha v\u1edbi c\u00e1c bi\u1ec7n ph\u00e1p k\u1ef9 thu\u1eadt c\u00f4ng tr\u00ecnh nh\u01b0 c\u1ea3i t\u1ea1o th\u00e0nh ph\u1ea7n c\u01a1 gi\u1edbi \u0111\u1ea5t c\u1ee5c b\u1ed9 t\u1ea1i cac h\u1ed1 tr\u1ed3ng c\u00e2y. B\u01b0\u1edbc \u0111\u1ea7u cho th\u1ea5y, c\u00e2y \u0111\u00e3 c\u00f3 th\u1ec3 t\u1ed3n t\u1ea1i v\u00e0 sinh tr\u01b0\u1edfng nh\u01b0ng t\u1ef7 l\u1ec7 s\u1ed1ng c\u0169ng ch\u1ec9 \u0111\u1ea1t <50%. Tuy nhi\u00ean n\u00f3 c\u0169ng m\u1ee1 ra m\u1ed9t h\u01b0\u1edbng \u0111i m\u1edbi trong c\u00f4ng t\u00e1c tr\u1ed3ng, kh\u00f4i ph\u1ee5c v\u00e0 ph\u00e1t tri\u1ec3n RNM tr\u00ean nh\u1eefng \u0111i\u1ec1u ki\u1ec7n l\u1eadp \u0111\u1ecba kh\u00f3 kh\u0103n.<\/p>\n

3.2. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u ph\u00e2n chia l\u1eadp \u0111\u1ecba<\/i><\/b><\/p>\n

a) \u0110\u1ec1 xu\u1ea5t c\u00e1c ti\u00eau ch\u00ed ph\u00e2n chia l\u1eadp \u0111\u1ecba<\/i><\/p>\n

C\u00f3 nhi\u1ec1u y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn s\u1ef1 t\u1ed3n t\u1ea1i, sinh tr\u01b0\u1edfng v\u00e0 ph\u00e1t tri\u1ec3n c\u1ee7a RNM nh\u01b0 \u0110\u1ecba h\u00ecnh, Ch\u1ebf \u0111\u1ed9 m\u01b0a, Nhi\u1ec7t \u0111\u1ed9, \u0110\u1ed9 m\u1eb7n, Ch\u1ebf \u0111\u1ed9 ng\u1eadp tri\u1ec1u, \u0111\u1ed9 th\u00e0nh th\u1ee5c c\u1ee7a \u0111\u1ea5t,\u2026 Tuy nhi\u00ean sau khi xem x\u00e9t vai tr\u00f2 c\u1ee7a t\u1eebng y\u1ebfu t\u1ed1, \u0111\u1ec1 t\u00e0i l\u1ef1a ch\u1ecdn 4 y\u1ebfu t\u1ed1 ch\u00ednh l\u00e0 Ch\u1ebf \u0111\u1ed9 ng\u1eadp tri\u1ec1u, Lo\u1ea1i \u0111\u1ea5t, TPCG v\u00e0 \u0111\u1ed9 th\u00e0nh th\u1ee5c c\u1ee7a \u0111\u1ea5t \u0111\u1ec3 l\u00e0m c\u01a1 s\u1edf ph\u00e2n chia l\u1eadp \u0111\u1ecba.<\/p>\n

B\u1ea3ng 4. C\u00e1c ti\u00eau ch\u00ed ph\u00e2n chia l\u1eadp \u0111\u1ecba kh\u00f3 kh\u0103n<\/b><\/p>\n\n\n\n\n\n\n\n\n
\n

TT<\/b><\/p>\n<\/td>\n

\n

Ti\u00eau ch\u00ed<\/b><\/p>\n<\/td>\n

\n

M\u1ee9c \u0111\u1ed9 kh\u00f3 kh\u0103n<\/b><\/p>\n<\/td>\n<\/tr>\n

\u0110\u1eb7c bi\u1ec7t kh\u00f3 kh\u0103n<\/i><\/b><\/td>\n\n

R\u1ea5t kh\u00f3 kh\u0103n<\/i><\/b><\/p>\n<\/td>\n

\n

Kh\u00f3 kh\u0103n<\/i><\/b><\/p>\n<\/td>\n

\n

\u00cdt kh\u00f3 kh\u0103n<\/i><\/b><\/p>\n<\/td>\n<\/tr>\n

1<\/td>\nCh\u1ebf \u0111\u1ed9 ng\u1eadp tri\u1ec1u<\/td>\nNg\u1eadp khi tri\u1ec1u c\u01b0\u1eddng < 25 ng\u00e0y\/n\u0103m, \u0111\u1ed9 ng\u1eadp tri\u1ec1u < 20cm ho\u1eb7c ng\u1eadp tri\u1ec1u th\u01b0\u1eddng xuy\u00ean, \u0111\u1ed9 ng\u1eadp > 50cm.<\/td>\nNg\u1eadp tri\u1ec1u cao t\u1eeb 100 \u0111\u1ebfn > 30 ng\u00e0y\/n\u0103m, \u0111\u1ed9 ng\u1eadp tri\u1ec1u < 100 cm<\/td>\nNg\u1eadp tri\u1ec1u trung b\u00ecnh 100-300 ng\u00e0y\/n\u0103m, \u0111\u1ed9 ng\u1eadp > 100cm<\/td>\nNg\u1eadp tri\u1ec1u th\u1ea5p 300-365 ng\u00e0y\/n\u0103m, \u0111\u1ed9 ng\u1eadp > 100cm<\/td>\n<\/tr>\n
2<\/td>\nLo\u1ea1i \u0111\u1ea5t<\/td>\n\u0110\u1ea5t ng\u1eadp m\u1eb7n ph\u00e8n ti\u1ec1m t\u00e0ng m\u1ea1nh, t\u1ea7ng sinh ph\u00e8n n\u1eb1m \u1edf t\u1ea7ng m\u1eb7t<\/td>\n\u0110\u1ea5t ng\u1eadp m\u1eb7n ph\u00e8n ti\u1ec1m t\u00e0ng m\u1ea1nh, t\u1ea7ng sinh ph\u00e8n \u1edf t\u1ea7ng \u0111\u1ea5t s\u00e2u > 40 cm<\/td>\n\u0110\u1ea5t ng\u1eadp m\u1eb7n ph\u00e8n ti\u1ec1m t\u00e0ng trung b\u00ecnh v\u00e0 y\u1ebfu<\/td>\n\u0110\u1ea5t ng\u1eadp m\u1eb7n kh\u00f4ng c\u00f3 ph\u00e8n ti\u1ec1m t\u00e0ng<\/td>\n<\/tr>\n
3<\/td>\nTh\u00e0nh ph\u1ea7n c\u01a1 gi\u1edbi c\u1ee7a \u0111\u1ea5t<\/td>\n– C\u00e1t r\u1eddi, c\u00e1t d\u00ednh- T\u1ef7 l\u1ec7 \u0111\u00e1 s\u1ecfi l\u1eabn > 70%<\/td>\n– C\u00e1t pha- T\u1ef7 l\u1ec7 \u0111\u00e1 s\u1ecfi l\u1eabn 50 – < 70%<\/td>\n– Th\u1ecbt nh\u1eb9.- T\u1ef7 l\u1ec7 \u0111\u00e1 s\u1ecfi l\u1eabn 25 – 50%<\/td>\n– Th\u1ecbt trung b\u00ecnh v\u00e0 s\u00e9t.- T\u1ef7 l\u1ec7 \u0111\u00e1 l\u1eabn < 25%<\/td>\n<\/tr>\n
4<\/td>\n\u0110\u1ed9 th\u00e0nh th\u1ee5c c\u1ee7a \u0111\u1ea5t<\/td>\n– S\u00e9t r\u1eafn ch\u1eafc (n < 0,4)- C\u00e1t r\u1eddi, c\u00e1t d\u00ednh<\/td>\n– C\u00e1t pha- S\u00e9t ch\u1eb7t (n = 0,4 \u2013 0,6)<\/p>\n

 <\/td>\n

– B\u00f9n (n = 1,5 \u2013 2,5) ho\u1eb7c B\u00f9n lo\u00e3ng (n = 2,5 \u2013 4,0).- S\u00e9t (n = 0,7 \u2013 0,9)<\/td>\nS\u00e9t m\u1ec1m (n = 1,0 \u2013 1,4)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Ti\u1ebfn h\u00e0nh t\u00ednh to\u00e1n, kh\u1ea3o s\u00e1t ngo\u00e0i th\u1ef1c \u0111\u1ecba v\u00e0 d\u00f9ng ph\u01b0\u01a1ng ph\u00e1p cho \u0111i\u1ec3m\u00a0 c\u00f3\u00a0 tr\u1ecdng s\u1ed1 \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 m\u1ee9c \u0111\u1ed9 kh\u00f3 kh\u0103n c\u1ee7a c\u00e1c ti\u00eau ch\u00ed nh\u01b0 sau<\/p>\n

B\u1ea3ng 5. \u0110i\u1ec3m s\u1ed1 cho c\u00e1c ti\u00eau ch\u00ed theo m\u1ee9c \u0111\u1ed9 kh\u00f3 kh\u0103n<\/b><\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Ti\u00eau ch\u00ed<\/b><\/p>\n<\/td>\n

\n

\u0110i\u1ec3m s\u1ed1<\/b><\/p>\n<\/td>\n

\n

Tr\u1ecdng s\u1ed1<\/b><\/p>\n<\/td>\n

\n

T\u1ed1i \u0111a<\/b><\/p>\n<\/td>\n<\/tr>\n

\n

Ch\u1ebf \u0111\u1ed9 ng\u1eadp tri\u1ec1u<\/p>\n<\/td>\n

\n

T1<\/sub><\/p>\n<\/td>\n

\n

1<\/p>\n<\/td>\n

\n

2<\/p>\n<\/td>\n

\n

2<\/p>\n<\/td>\n<\/tr>\n

\n

T2<\/sub><\/p>\n<\/td>\n

\n

2<\/p>\n<\/td>\n

\n

4<\/p>\n<\/td>\n<\/tr>\n

\n

T3<\/sub><\/p>\n<\/td>\n

\n

3<\/p>\n<\/td>\n

\n

6<\/p>\n<\/td>\n<\/tr>\n

\n

T4<\/sub><\/p>\n<\/td>\n

\n

4<\/p>\n<\/td>\n

\n

8<\/p>\n<\/td>\n<\/tr>\n

\n

Lo\u1ea1i \u0111\u1ea5t<\/p>\n<\/td>\n

\n

M\u00ad\u00ad1<\/sub><\/p>\n<\/td>\n

\n

1<\/p>\n<\/td>\n

\n

1<\/p>\n<\/td>\n

\n

1<\/p>\n<\/td>\n<\/tr>\n

\n

M\u00ad\u00ad2<\/sub><\/p>\n<\/td>\n

\n

2<\/p>\n<\/td>\n

\n

2<\/p>\n<\/td>\n<\/tr>\n

\n

M\u00ad\u00ad3<\/sub><\/p>\n<\/td>\n

\n

3<\/p>\n<\/td>\n

\n

3<\/p>\n<\/td>\n<\/tr>\n

\n

M\u00ad\u00ad4<\/sub><\/p>\n<\/td>\n

\n

4<\/p>\n<\/td>\n

\n

4<\/p>\n<\/td>\n<\/tr>\n

\n

Th\u00e0nh ph\u1ea7n c\u01a1 gi\u1edbi<\/p>\n<\/td>\n

\n

G1<\/sub><\/p>\n<\/td>\n

\n

1<\/p>\n<\/td>\n

\n

3<\/p>\n<\/td>\n

\n

3<\/p>\n<\/td>\n<\/tr>\n

\n

G2<\/sub><\/p>\n<\/td>\n

\n

2<\/p>\n<\/td>\n

\n

6<\/p>\n<\/td>\n<\/tr>\n

\n

G3<\/sub><\/p>\n<\/td>\n

\n

3<\/p>\n<\/td>\n

\n

9<\/p>\n<\/td>\n<\/tr>\n

\n

G4<\/sub><\/p>\n<\/td>\n

\n

4<\/p>\n<\/td>\n

\n

12<\/p>\n<\/td>\n<\/tr>\n

\n

\u0110\u1ed9 th\u00e0nh th\u1ee5c c\u1ee7a \u0111\u1ea5t<\/p>\n<\/td>\n

\n

N1<\/sub><\/p>\n<\/td>\n

\n

1<\/p>\n<\/td>\n

\n

3<\/p>\n<\/td>\n

\n

3<\/p>\n<\/td>\n<\/tr>\n

\n

N2<\/sub><\/p>\n<\/td>\n

\n

2<\/p>\n<\/td>\n

\n

6<\/p>\n<\/td>\n<\/tr>\n

\n

N3<\/sub><\/p>\n<\/td>\n

\n

3<\/p>\n<\/td>\n

\n

9<\/p>\n<\/td>\n<\/tr>\n

\n

N4<\/sub><\/p>\n<\/td>\n

\n

4<\/p>\n<\/td>\n

\n

12<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

N\u1ebfu s\u1ed1 \u0111i\u1ec3m c\u1ee7a c\u00e1c ti\u00eau ch\u00ed \u0111\u1ea1t 7 \u0111i\u1ec3m \u2013 \u00edt kh\u00f3 kh\u0103n,<\/p>\n

N\u1ebfu s\u1ed1 \u0111i\u1ec3m c\u1ee7a c\u00e1c ti\u00eau ch\u00ed \u0111\u1ea1t >7 \u0111i\u1ec3m \u0111\u1ebfn < 18 \u0111i\u1ec3m \u2013 kh\u00f3 kh\u0103n,<\/p>\n

N\u1ebfu s\u1ed1 \u0111i\u1ec3m c\u1ee7a c\u00e1c ti\u00eau ch\u00ed \u0111\u1ea1t 18 \u0111\u1ebfn < 27 \u0111i\u1ec3m \u2013 r\u1ea5t kh\u00f3 kh\u0103n,<\/p>\n

N\u1ebfu s\u1ed1 \u0111i\u1ec3m c\u1ee7a c\u00e1c ti\u00eau ch\u00ed \u0111\u1ea1t > 27 \u0111i\u1ec3m \u2013 \u0111\u1eb7c bi\u1ec7t kh\u00f3 kh\u0103n kh\u00f3 kh\u0103n,<\/p>\n

b) K\u1ebft qu\u1ea3 ph\u00e2n chia l\u1eadp \u0111\u1ecba theo ch\u1ebf \u0111\u1ed9 ng\u1eadp tri\u1ec1u<\/i><\/p>\n

K\u1ebft qu\u1ea3 cho th\u1ea5y; V\u00f9ng ng\u1eadp tri\u1ec1u th\u1ea5p (t\u1eeb 300 \u0111\u1ebfn 365 ng\u00e0y\/n\u0103m) c\u00f3 di\u1ec7n t\u00edch l\u1edbn nh\u1ea5t v\u1edbi 47.532 ha chi\u1ebfm 37,2% di\u1ec7n t\u00edch \u0111\u1ea5t ng\u1eadp m\u1eb7n to\u00e0n v\u00f9ng, ti\u1ebfp \u0111\u1ebfn l\u00e0 v\u00f9ng ng\u1eadp tri\u1ec1u trung b\u00ecnh v\u1edbi 32.664 ha (chi\u1ebfm 25,6%). V\u00f9ng ng\u1eadp tri\u1ec1u cao c\u00f3 v\u1edbi 25.452 ha (chi\u1ebfm 20%). V\u00f9ng ng\u1eadp khi tri\u1ec1u c\u01b0\u1eddng ho\u1eb7c th\u01b0\u1eddng xuy\u00ean b\u1ecb ng\u1eadp \u2013 T4<\/sub> chi\u1ebfm 17,2% v\u1edbi 21.945 ha l\u00e0 v\u00f9ng c\u00f3 di\u1ec7n t\u00edch nh\u1ecf nh\u1ea5t.<\/p>\n

c) K\u1ebft qu\u1ea3 ph\u00e2n chia v\u1ec1 lo\u1ea1i \u0111\u1ea5t ng\u1eadp m\u1eb7n<\/i><\/p>\n

V\u00f9ng ven bi\u1ec3n c\u00e1c t\u1ec9nh mi\u1ec1n B\u1eafc c\u00f3 02 lo\u1ea1i \u0111\u1ea5t ch\u00ednh l\u00e0 \u0111\u1ea5t ng\u1eadp m\u1eb7n kh\u00f4ng c\u00f3 ph\u00e8n ti\u1ec1m t\u00e0ng v\u00e0 \u0111\u1ea5t ng\u1eadp m\u1eb7n ph\u00e8n ti\u1ec1m t\u00e0ng trung b\u00ecnh v\u00e0 y\u1ebfu. \u0110\u1ea5t ng\u1eadp m\u1eb7n kh\u00f4ng c\u00f3 ph\u00e8n ti\u1ec1m t\u00e0ng, nh\u00ecn chung r\u1ea5t thu\u1eadn l\u1ee3i cho tr\u1ed3ng, sinh tr\u01b0\u1edfng v\u00e0 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00e1c lo\u00e0i c\u00e2y r\u1eebng, lo\u1ea1i \u0111\u1ea5t n\u00e0y chi\u1ebfm ph\u1ea7n l\u1edbn di\u1ec7n t\u00edch \u0111\u1ea5t ng\u1eadp m\u1eb7n khu v\u1ef1c nghi\u00ean c\u1ee9u v\u1edbi 114.983 ha (chi\u1ebfm 90,1%). \u0110\u00e2y l\u00e0 di\u1ec7n t\u00edch \u0111\u00e3 c\u00f3 r\u1eebng ho\u1eb7c c\u00f3 kh\u1ea3 n\u0103ng tr\u1ed3ng r\u1eebng t\u1ea1i c\u00e1c \u0111\u1ecba ph\u01b0\u01a1ng.<\/p>\n

\u0110\u1ea5t ng\u1eadp m\u1eb7n ph\u00e8n ti\u1ec1m t\u00e0ng trung b\u00ecnh v\u00e0 y\u1ebfu chi\u1ebfm 9,9% v\u1edbi 12.664 ha. \u0110\u00e2y l\u00e0 di\u1ec7n t\u00edch \u0111\u1ea5t ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i m\u1ee5c \u0111\u00edch sang nu\u00f4i tr\u1ed3ng thu\u1ef7 s\u1ea3n. Trong qu\u00e1 tr\u00ecnh di\u1ec5n ra c\u00e1c ho\u1ea1t \u0111\u1ed9ng canh t\u00e1c c\u1ee7a con ng\u01b0\u1eddi \u0111\u00e3 l\u00e0m thay \u0111\u1ed5i t\u00ednh ch\u1ea5t \u0111\u1ea5t, g\u00e2y \u0111\u1ed9c cho v\u1eadt nu\u00f4i, c\u00e2y tr\u1ed3ng v\u00e0 t\u01b0\u01a1ng \u0111\u1ed1i kh\u00f3 kh\u0103n trong vi\u1ec7c kh\u00f4i ph\u1ee5c l\u1ea1i RNM.<\/p>\n

d) K\u1ebft qu\u1ea3 ph\u00e2n chia v\u1ec1 th\u00e0nh ph\u1ea7n c\u01a1 gi\u1edbi \u0111\u1ea5t<\/i><\/p>\n

\u0110\u1ea5t trong khu v\u1ef1c ven bi\u1ec3n c\u00e1c t\u1ec9nh t\u1eeb Qu\u1ea3ng Ninh \u0111\u1ebfn Thanh Ho\u00e1 c\u00f3 th\u00e0nh ph\u1ea7n c\u01a1 gi\u1edbi ch\u1ee7 y\u1ebfu l\u00e0 th\u1ecbt trung b\u00ecnh \u0111\u1ebfn s\u00e9t v\u1edbi 100.913 ha, chi\u1ebfm 79,1% t\u1ed5ng di\u1ec7n t\u00edch \u0111\u1ea5t ng\u1eadp m\u1eb7n to\u00e0n v\u00f9ng. \u0110\u1ea5t c\u00f3 th\u00e0nh ph\u1ea7n c\u01a1 gi\u1edbi th\u1ecbt nh\u1eb9 \u0111\u1ee9ng th\u1ee9 2 v\u1edbi 13.006 ha, chi\u1ebfm 10,2%. Th\u1ea5p nh\u1ea5t l\u00e0 \u0111\u1ea5t c\u00f3 th\u00e0nh ph\u1ea7n c\u01a1 gi\u1edbi l\u00e0 c\u00e1t, v\u1edbi 4.867 ha, chi\u1ebfm 3,8%<\/p>\n

e) K\u1ebft qu\u1ea3 ph\u00e2n chia theo \u0111\u1ed9 th\u00e0nh th\u1ee5c c\u1ee7a \u0111\u1ea5t<\/i><\/p>\n

Di\u1ec7n t\u00edch \u0111\u1ea5t c\u00f3 \u0111\u1ed9 th\u00e0nh th\u1ee5c l\u00e0 s\u00e9t m\u1ec1m chi\u1ebfm 50.374 ha (45,3%). \u0110\u00e2y l\u00e0 di\u1ec7n t\u00edch \u0111a s\u1ed1 n\u1eb1m trong c\u00e1c khu v\u1ef1c m\u1edbi \u0111\u01b0\u1ee3c tr\u1ed3ng RNM c\u00f3 \u0111\u1ed9 tu\u1ed5i < 5 n\u0103m.<\/p>\n

Di\u1ec7n t\u00edch \u0111\u1ea5t c\u00f3 \u0111\u1ed9 th\u00e0nh th\u1ee5c l\u00e0 b\u00f9n v\u00e0 s\u00e9t chi\u1ebfm 22,4 %. L\u00e0 c\u00e1c khu v\u1ef1c \u0111\u00e3 \u0111\u01b0\u1ee3c tr\u1ed3ng r\u1eebng ng\u1eadp m\u1eb7n c\u00f3 \u0111\u1ed9 tu\u1ed5i 5 \u0111\u1ebfn 10 n\u0103m<\/p>\n

Di\u1ec7n t\u00edch \u0111\u1ea5t c\u00f3 \u0111\u1ed9 th\u00e0nh th\u1ee5c l\u00e0 b\u00f9n lo\u00e3ng v\u00e0 s\u00e9t ch\u1eb7t chi\u1ebfm 13,5%. L\u00e0 v\u00f9ng chuy\u1ec3n ti\u1ebfp v\u00e0 xen k\u1ebd gi\u1eefa s\u00e9t r\u1eafn ch\u1eafc\u00a0 v\u00e0 s\u00e9t ho\u1eb7c b\u00f9n v\u00e0 b\u00f9n r\u1ea5t lo\u00e3ng.<\/p>\n

Di\u1ec7n t\u00edch \u0111\u1ea5t c\u00f3 \u0111\u1ed9 th\u00e0nh th\u1ee5c l\u00e0 b\u00f9n r\u1ea5t lo\u00e3ng v\u00e0 s\u00e9t r\u1eafn ch\u1eafc chi\u1ebfm 18,9% v\u1edbi\u00a0 23.957 ha. \u0110\u00e2y l\u00e0 lo\u1ea1i \u0111\u1ea5t \u0111\u01b0\u1ee3c ph\u00e2n b\u1ed1 s\u00e1t ch\u00e2n \u0111\u00ea v\u00e0 ph\u00eda ngo\u00e0i ti\u1ebfp gi\u00e1p v\u1edbi m\u00e9p n\u01b0\u1edbc thu\u1ed9c c\u00e1c v\u00f9ng nghi\u00ean c\u1ee9u<\/p>\n

f) X\u00e2y d\u1ef1ng b\u1ea3n \u0111\u1ed3 l\u1eadp \u0111\u1ecba<\/i><\/p>\n

C\u00e1c y\u1ebfu t\u1ed1 l\u1eadp \u0111\u1ecba n\u00eau tr\u00ean \u0111\u01b0\u1ee3c t\u1ed5ng h\u1ee3p, th\u1ed1ng nh\u1ea5t tr\u00ean n\u1ec1n b\u1ea3n \u0111\u1ed3 \u0111\u1ecba h\u00ecnh h\u1ec7 UTM, t\u1ef7 l\u1ec7 1\/25.000 v\u00e0 s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 GIS \u0111\u1ec3 s\u1ed1 ho\u00e1, g\u00e1n c\u1ea5p ho\u1eb7c k\u00fd hi\u1ec7u v\u00e0 t\u00edch h\u1ee3p theo t\u1eebng l\u1edbp th\u00f4ng tin chuy\u00ean \u0111\u1ec1. K\u1ebft qu\u1ea3 cho th\u1ea5y v\u00f9ng ven bi\u1ec3n mi\u1ec1n B\u1eafc c\u00f3 hai lo\u1ea1i g\u1ed3m \u0110\u1ea5t ng\u1eadp m\u1eb7n kh\u00f4ng c\u00f3 ph\u00e8n ti\u1ec1m t\u00e0ng v\u00e0 \u0110\u1ea5t ng\u1eadp m\u1eb7n ph\u00e8n ti\u1ec1m t\u00e0ng trung b\u00ecnh v\u00e0 y\u1ebfu v\u1edbi 18 d\u1ea1ng l\u1eadp \u0111\u1ecba. Trong \u0111\u00f3 \u0111\u1ea5t ng\u1eadp m\u1eb7n kh\u00f4ng c\u00f3 ph\u00e8n ti\u1ec1m t\u00e0ng c\u00f3 13 d\u1ea1ng l\u1eadp \u0111\u1ecba, c\u00f2n \u0111\u1ea5t ng\u1eadp m\u1eb7n ph\u00e8n ti\u1ec1m t\u00e0ng trung b\u00ecnh v\u00e0 y\u1ebfu c\u00f3 5 d\u1ea1ng l\u1eadp \u0111\u1ecba.<\/p>\n

Ti\u1ebfn h\u00e0nh gh\u00e9p c\u00e1c d\u1ea1ng l\u1eadp \u0111\u1ecba c\u00f3 c\u00e1c ti\u00eau ch\u00ed n\u1eb1m g\u1ea7n nhau th\u00e0nh 4 d\u1ea1ng l\u1eadp \u0111\u1ecba theo c\u00e1c m\u1ee9c \u0111\u1ed9 kh\u00f3 kh\u0103n, \u0111\u1ed3ng th\u1eddi \u0111\u1ec1 xu\u1ea5t h\u01b0\u1edbng s\u1eed d\u1ee5ng cho t\u1eebng d\u1ea1ng l\u1eadp \u0111\u1ecba.<\/p>\n

B\u1ea3ng 6. C\u00e1c nh\u00f3m d\u1ea1ng l\u1eadp \u0111\u1ecba theo m\u1ee9c \u0111\u1ed9 kh\u00f3 kh\u0103n<\/b><\/p>\n

\n\n\n\n\n\n\n\n
\n

Nh\u00f3m l\u1eadp \u0111\u1ecba<\/b><\/p>\n<\/td>\n

\n

M\u1ee9c \u0111\u1ed9 kh\u00f3 kh\u0103n<\/b><\/p>\n<\/td>\n

\n

\u0110\u1ea5t ng\u1eadp m\u1eb7n kh\u00f4ng c\u00f3 ph\u00e8n ti\u1ec1m t\u00e0ng<\/b><\/p>\n<\/td>\n

\n

\u0110\u1ea5t ng\u1eadp m\u1eb7n ph\u00e8n ti\u1ec1m t\u00e0ng trung b\u00ecnh v\u00e0 y\u1ebfu<\/b><\/p>\n<\/td>\n

\n

Ghi ch\u00fa<\/b><\/p>\n<\/td>\n<\/tr>\n

\n

A<\/p>\n<\/td>\n

\u00cdt kh\u00f3 kh\u0103n<\/td>\nM1<\/sub>T1<\/sub>G1<\/sub>N1<\/sub>; M1<\/sub>T2<\/sub>G2<\/sub>N1<\/sub>; M1<\/sub>T1<\/sub>G1<\/sub>N2<\/sub>; M1<\/sub>T2<\/sub>G2<\/sub>N2<\/sub>; M1<\/sub>T1<\/sub>G1<\/sub>N3<\/sub>;<\/td>\n<\/td>\n7 \u0111i\u1ec3m<\/td>\n<\/tr>\n
\n

B<\/p>\n<\/td>\n

Kh\u00f3 kh\u0103n<\/td>\nM1<\/sub>T3<\/sub>G3<\/sub>N1<\/sub>; M1<\/sub>T4<\/sub>G4<\/sub>N1<\/sub>; M1<\/sub>T3<\/sub>G3<\/sub>N2<\/sub>; M1<\/sub>T2<\/sub>G2<\/sub>N3<\/sub>; M1<\/sub>T3<\/sub>G3<\/sub>N3<\/sub><\/td>\nM2<\/sub>T2<\/sub>G2<\/sub>N3<\/sub>; M2<\/sub>T3<\/sub>G3<\/sub>N3<\/sub>;M2<\/sub>T1<\/sub>G1<\/sub>N4<\/sub>;<\/p>\n

 <\/td>\n

> 7 \u0111\u1ebfn < 18 \u0111i\u1ec3m<\/td>\n<\/tr>\n
\n

C<\/p>\n<\/td>\n

R\u1ea5t kh\u00f3 kh\u0103n<\/td>\nM1<\/sub>T4<\/sub>G4<\/sub>N2<\/sub>; M1<\/sub>T3<\/sub>G3<\/sub>N4<\/sub><\/td>\n<\/td>\n>18 \u0111\u1ebfn < 27 \u0111i\u1ec3m<\/td>\n<\/tr>\n
\n

D<\/p>\n<\/td>\n

\u0110\u1eb7c bi\u1ec7t kh\u00f3 kh\u0103n<\/td>\nM1<\/sub>T3<\/sub>G4<\/sub>N4<\/sub><\/td>\nM2<\/sub>T4<\/sub>G4<\/sub>N3<\/sub>; M2<\/sub>T4<\/sub>G4<\/sub>N4<\/sub><\/td>\n\u2265 27 \u0111i\u1ec3m<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Di\u1ec7n t\u00edch c\u00e1c nh\u00f3m d\u1ea1ng l\u1eadp \u0111\u1ecba nh\u01b0 sau<\/p>\n

–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 L\u1eadp \u0111\u1ecba \u00edt kh\u00f3 kh\u0103n: 70.854 ha (chi\u1ebfm 55,5%)<\/p>\n

–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 L\u1eadp \u0111\u1ecba kh\u00f3 kh\u0103n: 37.352 ha (chi\u1ebfm 29,3%)<\/p>\n

–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 L\u1eadp \u0111\u1ecba r\u1ea5t kh\u00f3 kh\u0103n: 13.224 ha (chi\u1ebfm 10,4%)<\/p>\n

–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 L\u1eadp \u0111\u1ecba \u0111\u1eb7c bi\u1ec7t kh\u00f3 kh\u0103n: 6.217 ha (chi\u1ebfm 4,9%)<\/p>\n

3.3. K\u1ebft qu\u1ea3 b\u01b0\u1edbc \u0111\u1ea7u x\u00e2y d\u1ef1ng c\u00e1c m\u00f4 h\u00ecnh th\u00ed nghi\u1ec7m<\/b><\/p>\n

a) M\u00f4 h\u00ecnh tr\u1ed3ng RNM tr\u00ean l\u1eadp \u0111\u1ecba c\u00e1t<\/i> d\u00ednh<\/i> (3 ha): t\u1ea1i \u0110\u00f4ng Long \u2013 Ti\u1ec1n H\u1ea3i- Th\u00e1i B\u00ecnh S\u1eed d\u1ee5ng gi\u1ea3i ph\u00e1p c\u1ea3i t\u1ea1o th\u00e0nh ph\u1ea7n c\u01a1 gi\u1edbi c\u1ee5c b\u1ed9 v\u00e0 m\u1ed9t s\u1ed1 gi\u1ea3i ph\u00e1p k\u1ef9 thu\u1eadt v\u1ec1 c\u00e2y gi\u1ed1ng, t\u00e1c \u0111\u1ed9ng c\u01a1 gi\u1edbi v\u00e0o c\u00e2y gi\u1ed1ng, m\u00f9a v\u1ee5, v\u00e0 thu\u1ef7 tri\u1ec1u \u0111\u1ec3 tr\u1ed3ng h\u1ed7n giao theo h\u00e0ng c\u00e1c lo\u00e0i Trang v\u00e0 B\u1ea7n chua, m\u1eadt \u0111\u1ed9 3.300 c\u00e2y\/ha v\u1edbi c\u00e1c c\u00f4ng th\u1ee9c th\u00ed nghi\u1ec7m nh\u01b0 sau<\/p>\n

CT1:<\/b>1650 c\u00e2y B\u1ea7n + 1650 c\u00e2yTrang,<\/p>\n

CT2<\/b>: 2500 c\u00e2y B\u1ea7n (2 x 2m) + 800 c\u00e2y Trang (2 x 6 m),<\/p>\n

CT3:<\/b> 2000 c\u00e2y B\u1ea7n (2 x 2,5m) + 1300 c\u00e2y Trang(2,5 x 3 m),<\/p>\n

Sau 2 n\u0103m cho th\u1ea5y, c\u00f4ng th\u1ee9c\u00a0 CT2<\/b> l\u00e0 th\u00edch h\u1ee3p nh\u1ea5t v\u1edbi t\u1ef7 l\u1ec7 s\u1ed1ng trung b\u00ecnh tr\u00ean 93%, (\u2206Hvn = 51 cm; \u2206Do = 0,8 cm; Dr\u1ec5 lan<\/sub> = 4m), t\u1ed1c \u0111\u1ed9 b\u1ed3i l\u1eafng ph\u00f9 sa 1,03 cm\/n\u0103m, t\u1ef7 l\u1ec7 c\u00e1t trong \u0111\u1ea5t gi\u1ea3m t\u1eeb > 85% xu\u1ed1ng c\u00f2n 83%, \u0111\u1ed9 m\u1eb7n, \u0111\u1ed9 \u0111\u1ee5c ch\u01b0a c\u00f3 bi\u1ebfn \u0111\u1ed9ng.<\/p>\n

b) M\u00f4 h\u00ecnh tr\u1ed3ng RNM kh\u00f4i ph\u1ee5c \u0111\u1ea7m nu\u00f4i t\u00f4m tho\u00e1i ho\u00e1<\/i> (4 ha): tai \u0110\u1ed3ng Rui –\u00a0 Ti\u00ean Y\u00ean \u2013 Qu\u1ea3ng Ninh. S\u1eed d\u1ee5ng m\u1ed9t s\u1ed1 gi\u1ea3i ph\u00e1p k\u1ef9 thu\u1eadt v\u1ec1 c\u00e2y gi\u1ed1ng, t\u00e1c \u0111\u1ed9ng c\u01a1 gi\u1edbi v\u00e0o c\u00e2y gi\u1ed1ng, m\u00f9a v\u1ee5, v\u00e0 thu\u1ef7 tri\u1ec1u \u0111\u1ec3 tr\u1ed3ng h\u1ed7n giao theo h\u00e0ng c\u00e1c lo\u00e0i V\u1eb9t d\u00f9 + \u0110\u01b0\u1edbc v\u00f2i + M\u1eafm, m\u1eadt \u0111\u1ed9 2.500 – 3.300 c\u00e2y\/hav\u1edbi c\u00e1c c\u00f4ng th\u1ee9c th\u00ed nghi\u1ec7m nh\u01b0 sau<\/p>\n

CT1<\/b>: V\u1eb9t d\u00f9 + \u0110\u01b0\u1edbc v\u00f2i (1 ha), m\u1eadt \u0111\u1ed9 2500 c\u00e2y\/ha. Trong \u0111\u00f3 1250 c\u00e2y v\u1eb9t + 1250 c\u00e2y \u0111\u01b0\u1edbc v\u00f2i (2 m x 2m)<\/p>\n

CT2:<\/b> V\u1eb9t d\u00f9 + \u0110\u01b0\u1edbc v\u00f2i (1 ha), m\u1eadt \u0111\u1ed9 3300 c\u00e2y\/ha. Trong \u0111\u00f3 1650 c\u00e2y v\u1eb9t + 1650 c\u00e2y \u0111\u01b0\u1edbc v\u00f2i (1,5 m x 2m)<\/p>\n

CT3: <\/b>M\u1eafm + \u0110\u01b0\u1edbc v\u00f2i (1 ha), m\u1eadt \u0111\u1ed9 2500 c\u00e2y\/ha. Trong \u0111\u00f3 1250 c\u00e2y m\u1eafm + 1250 c\u00e2y \u0110\u01b0\u1edbc (2 m x 2m).<\/p>\n

CT4: <\/b>M\u1eafm + \u0110\u01b0\u1edbc v\u00f2i (1 ha), m\u1eadt \u0111\u1ed9 3300 c\u00e2y\/ha. Trong \u0111\u00f3 1650 c\u00e2y m\u1eafm + 1650 c\u00e2y \u0110\u01b0\u1edbc (1,5 m x 2m).<\/p>\n

Sau 6 th\u00e1ng tr\u1ed3ng cho th\u1ea5y c\u00e1c c\u00f4ng th\u1ee9c \u0111\u1ec1u c\u00f3 t\u1ef7 l\u1ec7 s\u1ed1ng > 90%, cao nh\u1ea5t l\u00e0 CT1 v\u1edbi t\u1ef7 l\u1ec7 95%. C\u00e1c ch\u1ec9 ti\u00eau m\u00f4i tr\u01b0\u1eddng ch\u01b0a c\u00f3 bi\u1ebfn \u0111\u1ed9ng trong th\u1eddi gian ng\u1eafn.<\/p>\n

c) M\u00f4 h\u00ecnh tr\u1ed3ng RNM tr\u00ean l\u1eadp \u0111\u1ecba ng\u1eadp tri\u1ec1u s\u00e2u<\/i> (3 ha): t\u1ea1i \u0110\u00f4ng Long \u2013 Ti\u1ec1n H\u1ea3i \u2013 Th\u00e1i B\u00ecnh. S\u1eed d\u1ee5ng gi\u1ea3i ph\u00e1p R\u1ecd c\u00e2y v\u00e0 m\u1ed9t s\u1ed1 gi\u1ea3i ph\u00e1p k\u1ef9 thu\u1eadt v\u1ec1 c\u00e2y gi\u1ed1ng, t\u00e1c \u0111\u1ed9ng c\u01a1 gi\u1edbi v\u00e0o c\u00e2y gi\u1ed1ng, m\u00f9a v\u1ee5, v\u00e0 thu\u1ef7 tri\u1ec1u \u0111\u1ec3 tr\u1ed3ng h\u1ed7n giao theo h\u00e0ng c\u00e1c lo\u00e0i Trang v\u00e0 B\u1ea7n chua, m\u1eadt \u0111\u1ed9 3.300 c\u00e2y\/ha v\u1edbi c\u00e1c c\u00f4ng th\u1ee9c th\u00ed nghi\u1ec7m nh\u01b0 sau<\/p>\n

CT1:<\/b> B\u1ea7n + Trang ( 1 ha – m\u1eadt \u0111\u1ed9 3300 c\u00e2y\/ha). trong \u0111\u00f3 1650 c\u00e2y B\u1ea7n + 1650 c\u00e2y trang (1,5 x 2 m).<\/p>\n

CT2:<\/b> B\u1ea7n + Trang (1 ha – m\u1eadt \u0111\u1ed9 3300 c\u00e2y\/ha). trong \u0111\u00f3 b\u1ea7n 1000 c\u00e2y (2 x 5 m) v\u00e0\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\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\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\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Trang 2300 c\u00e2y (2 x 2 m).<\/p>\n

CT3:<\/b> B\u1ea7n + Trang (1 ha – m\u1eadt \u0111\u1ed9 3300 c\u00e2y\/ha). Trong \u0111\u00f3: B\u1ea7n 2500 c\u00e2y (2 x 2m) v\u00e0 Trang 800 c\u00e2y (2 x 6 m).<\/p>\n

K\u1ebft qu\u1ea3 cho th\u1ea5y,sau 6 th\u00e1ng tr\u1ed3ng, t\u1ef7 l\u1ec7 s\u1ed1ng \u0111\u1ea1t > 96%. Di\u1ebfn bi\u1ebfn c\u00e1c y\u1ebfu\u00e2 t\u1ed1 m\u00f4i tr\u01b0\u1eddng \u0111\u1ea5t,n\u01b0\u1edbc, ph\u00f9 sa ch\u01b0a c\u00f3 bi\u1ebfn \u0111\u1ed9ng do th\u1eddi gian theo d\u00f5i ng\u1eafn.<\/p>\n

d) M\u00f4 h\u00ecnh tr\u1ed3ng RNM tr\u00ean l\u1eadp \u0111\u1ecba \u0111\u1ea5t l\u1eabn s\u1ecfi \u0111\u00e1<\/i> (2 ha) t\u1ea1i \u0110\u1ed3ng Rui \u2013 Ti\u00ean Y\u00ean \u2013 Qu\u1ea3ng Ninh. S\u1eed d\u1ee5ng gi\u1ea3i ph\u00e1p c\u1ea3i t\u1ea1o th\u00e0nh ph\u1ea7n c\u01a1 gi\u1edbi c\u1ee5c b\u1ed9 v\u00e0 m\u1ed9t s\u1ed1 gi\u1ea3i ph\u00e1p k\u1ef9 thu\u1eadt v\u1ec1 c\u00e2y gi\u1ed1ng, t\u00e1c \u0111\u1ed9ng c\u01a1 gi\u1edbi v\u00e0o c\u00e2y gi\u1ed1ng, m\u00f9a v\u1ee5, v\u00e0 thu\u1ef7 tri\u1ec1u \u0111\u1ec3 tr\u1ed3ng h\u1ed7n giao theo h\u00e0ng c\u00e1c lo\u00e0i \u0110\u01b0\u1edbc v\u00f2i v\u00e0 V\u1eb9t d\u00f9, m\u1eadt \u0111\u1ed9 2.500 \u2013 3.300 c\u00e2y\/ha v\u1edbi c\u00e1c c\u00f4ng th\u1ee9c th\u00ed nghi\u1ec7m nh\u01b0 sau<\/p>\n

CT1: <\/b>Tr\u1ed3ng h\u1ed7n giao V\u1eb9t d\u00f9 + \u0110\u01b0\u1edbc v\u00f2i (1 ha), m\u1eadt \u0111\u1ed9 3.300 c\u00e2y\/ha. Trong \u0111\u00f3, V\u1eb9t 1.650 c\u00e2y v\u00e0 \u0110\u01b0\u1edbc 1650 c\u00e2y (1,5 x 2 m). <\/b><\/p>\n

CT2: <\/b>Tr\u1ed3ng h\u1ed7n giao V\u1eb9t d\u00f9 + \u0110\u01b0\u1edbc v\u00f2i (1 ha), m\u1eadt \u0111\u1ed9 2.500 c\u00e2y\/ha. Trong \u0111\u00f3, V\u1eb9t 1.250 c\u00e2y v\u00e0 \u0110\u01b0\u1edbc 1250 c\u00e2y (2 x 2 m). <\/b><\/p>\n

K\u1ebft qu\u1ea3, sau 6 th\u00e1ng t\u1ef7 l\u00ea s\u1ed1ng \u0111\u1ea1t > 94%, c\u00e1c y\u1ebfu t\u1ed1 m\u00f4i tr\u01b0\u1eddng ch\u01b0a c\u00f3 s\u1ef1 bi\u1ebfn \u0111\u1ed9ng<\/p>\n

e)M\u00f4 h\u00ecnh tr\u1ed3ng RNM tr\u00ean l\u1eadp \u0111\u1ecba ng\u1eadp tri\u1ec1u cao (2 ha) t\u1ea1i \u0110\u00f4ng Ho\u00e0ng \u2013 Ti\u1ec1n H\u1ea3i \u2013 Th\u00e1i B\u00ecnh v\u1edbi m\u1ed9t s\u1ed1 gi\u1ea3i ph\u00e1p k\u1ef9 thu\u1eadt v\u1ec1 c\u00e2y gi\u1ed1ng, t\u00e1c \u0111\u1ed9ng c\u01a1 gi\u1edbi v\u00e0o c\u00e2y gi\u1ed1ng v\u1edbi c\u00e1c c\u00f4ng th\u1ee9c th\u00ed nghi\u1ec7m nh\u01b0 sau<\/p>\n

CT1:<\/b> Tr\u1ed3ng Tra thu\u1ea7n lo\u00e0i (1 ha), m\u1eadt \u0111\u1ed9 3.300 c\u00e2y\/ha (1,5 x 2 m).<\/p>\n

CT2:<\/b> Tr\u1ed3ng Na n\u01b0\u1edbc thu\u1ea7n lo\u00e0i, m\u1eadt \u0111\u1ed9 3300 c\u00e2y\/ha (1,5 x 2 m).<\/p>\n

K\u1ebft qu\u1ea3 b\u01b0\u1edbc \u0111\u1ea7u cho th\u1ea5y c\u00e2y \u0111\u00e3 c\u00f3 th\u1ec3 t\u1ed3n t\u1ea1i \u0111\u01b0\u1ee3c tr\u00ean \u0111\u00e1t c\u00e1t r\u1eddi. Tuy nhi\u00ean c\u1ea7n ph\u1ea3i theo d\u00f5i, \u0111\u00e1nh gi\u00e1 trong th\u1eddi gian ti\u1ebfp theo.<\/p>\n

4. K\u1ebft lu\u1eadn<\/b><\/p>\n

– V\u00f9ng ven bi\u1ec3n mi\u1ec1n B\u1eafc Vi\u1ec7t Nam hi\u1ec7n c\u00f3 127.647 ha \u0111\u1ea5t r\u1eebng ng\u1eadp m\u1eb7n. Trong \u0111\u00f3, di\u1ec7n t\u00edch \u0111\u1ea5t c\u00f3 r\u1eebng l\u00e0 48.603 ha (chi\u1ebfm 38,08%), di\u1ec7n t\u00edch \u0111\u1ea5t kh\u00f4ng c\u00f3 r\u1eebng l\u00e0 41.417 ha (chi\u1ebfm 32,45%). To\u00e0n b\u1ed9 di\u1ec7n t\u00edch r\u1eebng n\u00e0y l\u00e0 r\u1eebng ph\u00f2ng h\u1ed9 v\u00e0 r\u1eebng \u0111\u1eb7c d\u1ee5ng.<\/p>\n

– C\u00e1c m\u00f4 h\u00ecnh tr\u1ed3ng r\u1eebng trong nh\u1eefng n\u0103m qua t\u1eadp trung v\u00e0o vi\u1ec7c tr\u1ed3ng thu\u1ea7n lo\u00e0i ho\u1eb7c h\u1ed7n giao c\u00e1c lo\u00e0i c\u00e2y B\u1ea7n chua, Trang, S\u00fa \u1edf nh\u1eefng v\u00f9ng c\u1eeda s\u00f4ng, \u0111\u1ed9 m\u1eb7n < 18%o ho\u1eb7c c\u00e1c lo\u00e0i \u0110\u01b0\u1edbc, V\u1eb9t, M\u1eafm \u1edf c\u00e1c khu v\u1ef1c c\u00f3 \u0111\u1ed9 m\u1eb7n cao, t\u1eeb 18 \u0111\u1ebfn 25%o, v\u1edbi c\u00e1c bi\u1ec7n ph\u00e1p k\u1ef9 thu\u1eadt truy\u1ec1n th\u1ed1ng tr\u00ean c\u00e1c d\u1ea3i b\u00e3i b\u1ed3i ho\u1eb7c tr\u1ed3ng b\u1ed5 sung v\u00e0o c\u00e1c l\u1ed7 tr\u1ed1ng trong r\u1eebng. Tr\u00ean nh\u1eefng l\u1eadp \u0111\u1ecba \u00edt kh\u00f3 kh\u0103n. Tuy nhi\u00ean t\u1ef7 l\u1ec7 th\u00e0nh r\u1eebng c\u1ee7a r\u1eebng tr\u1ed3ng trong nh\u1eefng n\u0103m qua th\u1ea5p (d\u01b0\u1edbi 42%), c\u00e2y sinh tr\u01b0\u1edfng t\u1ed1t.<\/p>\n

– V\u00f9ng ven bi\u1ec3n mi\u1ec1n B\u1eafc c\u00f3 18 d\u1ea1ng l\u1eadp \u0111\u1ecba ch\u00ednh c\u1ee7a 02 lo\u1ea1i \u0111\u1ea5t (ng\u1eadp m\u1eb7n kh\u00f4ng c\u00f3 ph\u00e8n ti\u1ec1m t\u00e0ng v\u00e0 ng\u1eadp m\u1eb7n ph\u00e8n ti\u1ec1m t\u00e0ng trung b\u00ecnh v\u00e0 y\u1ebfu) \u0111\u01b0\u1ee3c gh\u00e9p th\u00e0nh 4 nh\u00f3m d\u1ea1ng l\u1eadp \u0111\u1ecba t\u01b0\u01a1ng \u1ee9ng v\u1edbi c\u00e1c m\u1ee9c \u0111\u1ed9 l\u00e0 \u00edt kh\u00f3 kh\u0103n: 70.854 ha (chi\u1ebfm 55,5%); kh\u00f3 kh\u0103n: 37.352 ha (chi\u1ebfm 29,3%); r\u1ea5t kh\u00f3 kh\u0103n: 13.224 ha (chi\u1ebfm 10,4%); \u0111\u1eb7c bi\u1ec7t kh\u00f3 kh\u0103n: 6.217 ha (chi\u1ebfm 4,9%).<\/p>\n

– C\u00e1c m\u00f4 h\u00ecnh tr\u1ed3ng r\u1eebng nh\u00ecn chung c\u00f3 t\u1ef7 l\u1ec7 s\u1ed1ng cao (tr\u00ean 93%), c\u00e2y tr\u1ed3ng sinh tr\u01b0\u1edfng t\u01b0\u01a1ng \u0111\u1ed1i t\u1ed1t. Theo \u0111\u00e1nh gi\u00e1 b\u01b0\u1edbc \u0111\u1ea7u cho th\u1ea5y tr\u00ean l\u1eadp \u0111\u1ecba c\u00e1t d\u00ednh c\u00f3 \u0111i\u1ec1u ki\u1ec7n l\u1eadp \u0111\u1ecba t\u01b0\u01a1ng t\u1ef1 th\u00ec c\u00e2y B\u1ea7n chua l\u00e0 c\u00e2y tr\u1ed3ng th\u00edch h\u1ee3p v\u1edbi \u2206Hvn = 62,5 cm; \u2206Do = 0,2 cm. C\u00e1c y\u1ebfu t\u1ed1 m\u00f4i tr\u01b0\u1eddng \u0111\u1ea5t, n\u01b0\u1edbc, ph\u00f9 sa ch\u01b0a c\u00f3 s\u1ef1 bi\u1ebfn \u0111\u1ed9ng do th\u1eddi gian theo d\u00f5i c\u00f2n ng\u1eafn.<\/p>\n","protected":false},"excerpt":{"rendered":"

\u0110o\u00e0n \u0110\u00ecnh Tam 1. \u0110\u1eb7t v\u1ea5n \u0111\u1ec1 R\u1eebng ng\u1eadp m\u1eb7n c\u00f3 vai tr\u00f2 r\u1ea5t l\u1edbn trong vi\u1ec7c b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng \u0111\u1eb7c bi\u1ec7t l\u00e0 ch\u1eafn s\u00f3ng b\u1ea3o v\u1ec7 \u0111\u00ea bi\u1ec3n nh\u1ea5t l\u00e0 sau khi x\u1ea3y ra th\u1ea3m ho\u1ea1 s\u00f3ng th\u1ea7n \u1edf Tsynami. Vi\u1ec7c tr\u1ed3ng r\u1eebng ng\u1eadp m\u1eb7n hi\u1ec7n nay nh\u00ecn chung l\u00e0 thu\u1eadn l\u1ee3i, t\u1ef7 […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[21,72],"tags":[],"_links":{"self":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/15107"}],"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\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/comments?post=15107"}],"version-history":[{"count":4,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/15107\/revisions"}],"predecessor-version":[{"id":19161,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/15107\/revisions\/19161"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=15107"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=15107"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=15107"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}