{"id":8589,"date":"2009-03-24T02:21:39","date_gmt":"2009-03-23T19:21:39","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/2009\/03\/phuong-phap-ung-dung-dieu-tra-lap-dia-trong-cong-tac-trong-rung-va-khoanh-nuoi-tai-sinh-rung-o-mot-so-du-an-lam-nghiep-quoc-te-tai-viet-nam\/"},"modified":"2019-09-25T10:18:53","modified_gmt":"2019-09-25T03:18:53","slug":"phuong-phap-ung-dung-dieu-tra-lap-dia-trong-cong-tac-trong-rung-va-khoanh-nuoi-tai-sinh-rung-o-mot-so-du-an-lam-nghiep-quoc-te-tai-viet-nam","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/phuong-phap-ung-dung-dieu-tra-lap-dia-trong-cong-tac-trong-rung-va-khoanh-nuoi-tai-sinh-rung-o-mot-so-du-an-lam-nghiep-quoc-te-tai-viet-nam\/","title":{"rendered":"Ph\u01b0\u01a1ng ph\u00e1p \u1ee9ng d\u1ee5ng \u0111i\u1ec1u tra l\u1eadp \u0111\u1ecba trong c\u00f4ng t\u00e1c tr\u1ed3ng r\u1eebng v\u00e0 khoanh nu\u00f4i t\u00e1i sinh r\u1eebng \u1edf m\u1ed9t s\u1ed1 d\u1ef1 \u00e1n L\u00e2m nghi\u1ec7p qu\u1ed1c t\u1ebf t\u1ea1i Vi\u1ec7t Nam"},"content":{"rendered":"

Ng\u00f4 \u0110\u00ecnh Qu\u1ebf<\/em><\/strong>, Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam<\/em><\/p>\n

Nguy\u1ec5n Kh\u1eafc Ninh<\/strong>, T\u01b0 v\u1ea5n d\u1ef1 \u00e1n L\u00e2m nghi\u1ec7p KFW.<\/em><\/p>\n

\u0110i\u1ec1u tra l\u1eadp \u0111\u1ecba lu\u00f4n \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 l\u00e0 c\u1ea7n thi\u1ebft v\u00e0 quan tr\u1ecdng trong c\u00f4ng t\u00e1c tr\u1ed3ng r\u1eebng. T\u1eeb nh\u1eefng n\u0103m 1970, trong ch\u01b0\u01a1ng tr\u00ecnh h\u1ee3p t\u00e1c l\u00e2m nghi\u1ec7p v\u1edbi C.H.D.C \u0110\u1ee9c, c\u00e1c chuy\u00ean gia l\u00e2m nghi\u1ec7p \u0110\u1ee9c \u0111\u00e3 \u0111\u01b0a c\u00f4ng t\u00e1c \u0111i\u1ec1u tra l\u1eadp \u0111\u1ecba ph\u1ee5c v\u1ee5 cho quy ho\u1ea1ch tr\u1ed3ng r\u1eebng th\u00f4ng nh\u1ef1a \u1edf t\u1ec9nh Qu\u1ea3ng Ninh. N\u0103m 1971, ng\u00e0nh L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam\u0111\u00e3 ban h\u00e0nh quy tr\u00ecnh v\u1ec1 \u0111i\u1ec1u tra l\u1eadp \u0111\u1ecba c\u1ea5pI.Tuy nhi\u00ean, vi\u1ec7c v\u1eadn d\u1ee5ng quy tr\u00ecnh tr\u00ean c\u00f2n h\u1ea1n ch\u1ebf, ch\u1ee7 y\u1ebfu ch\u1ec9 m\u00f4 t\u1ea3 c\u00e1c \u0111i\u1ec1u ki\u1ec7n l\u1eadp \u0111\u1ecba khi thi\u1ebft k\u1ebf tr\u1ed3ng r\u1eebng.<\/p>\n

N\u0103m 1996, theo y\u00eau c\u1ea7u c\u1ee7a d\u1ef1 \u00e1n tr\u1ed3ng r\u1eebng Vi\u1ec7t – \u0110\u1ee9c KFW1 th\u1ef1c hi\u1ec7n t\u1ea1i L\u1ea1ng S\u01a1n v\u00e0 B\u1eafc Giang, ch\u00fang t\u00f4i \u0111\u00e3 ti\u1ebfn h\u00e0nh \u0111i\u1ec1u tra kh\u1ea3o s\u00e1t v\u00f9ng d\u1ef1 \u00e1n v\u00e0 \u0111\u1ec1 xu\u1ea5t m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p \u1ee9ng d\u1ee5ng \u0111i\u1ec1u tra l\u1eadp \u0111\u1ecba ph\u1ee5c v\u1ee5 cho tr\u1ed3ng r\u1eebng. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng v\u00e0 \u0111\u00e1nh gi\u00e1 c\u00f3 hi\u1ec7u qu\u1ea3 t\u1ea1i c\u00e1c d\u1ef1 \u00e1n tr\u1ed3ng r\u1eebng qu\u1ed1c t\u1ebf t\u1ea1i Vi\u1ec7t Nam nh\u01b0: D\u1ef1 \u00e1n tr\u1ed3ng r\u1eebng KFW2 (H\u00e0 T\u0129nh – Qu\u1ea3ng B\u00ecnh – Qu\u1ea3ng Tr\u1ecb), d\u1ef1 \u00e1n khu v\u1ef1c l\u00e2m nghi\u1ec7p ADB (Ph\u00fa Y\u00ean – Gia Lai – Qu\u1ea3ng Tr\u1ecb – Thanh Ho\u00e1), d\u1ef1 \u00e1n l\u00e2m nghi\u1ec7p x\u00e3 h\u1ed9i s\u00f4ng \u0110\u00e0 (S\u01a1n La – Lai Ch\u00e2u), d\u1ef1 \u00e1n tr\u1ed3ng r\u1eebng KFW3(L\u1ea1ng S\u01a1n – B\u1eafc Giang – Qu\u1ea3ng Ninh). Cho \u0111\u1ebfn nay, Ban QLDA KFW \u0111\u00e3 ho\u00e0n thi\u1ec7n, tr\u00ecnh B\u1ed9 N\u00f4ng Nghi\u1ec7p &PTNT ph\u00ea duy\u1ec7t th\u00e0nh quy tr\u00ecnh \u0111i\u1ec1u tra l\u1eadp \u0111\u1ecba cho tr\u1ed3ng r\u1eebng v\u00e0 khoanh nu\u00f4i t\u00e1i sinh r\u1eebng.<\/p>\n

1. M\u1ee5c \u0111\u00edch v\u00e0 y\u00eau c\u1ea7u c\u1ee7a ph\u01b0\u01a1ng ph\u00e1p \u1ee9ng d\u1ee5ng \u0111i\u1ec1u tra l\u1eadp \u0111\u1ecba.<\/strong><\/p>\n

1.1.M\u1ee5c \u0111\u00edch.<\/em><\/p>\n

– X\u00e1c \u0111\u1ecbnh v\u00e0 b\u1ed1 tr\u00ed lo\u00e0i c\u00e2y ph\u00f9 h\u1ee3p v\u1edbi ti\u1ec1m n\u0103ng s\u1ee9c s\u1ea3n xu\u1ea5t c\u1ee7a \u0111\u1ea5t v\u00e0 m\u1ee5c ti\u00eau c\u1ee7a d\u1ef1 \u00e1n.<\/p>\n

– L\u00e0m c\u01a1 s\u1edf \u0111\u1ec3 x\u00e2y d\u1ef1ng k\u1ebf ho\u1ea1ch tr\u1ed3ng r\u1eebng t\u1eeb c\u00e1c ch\u1ee7 r\u1eebng tham gia d\u1ef1 \u00e1n.<\/p>\n

1.2.Y\u00eau c\u1ea7u.<\/em><\/p>\n

– \u0110i\u1ec1u tra l\u1eadp \u0111\u1ecba l\u00e0 b\u01b0\u1edbc \u0111i tr\u01b0\u1edbc thi\u1ebft k\u1ebf tr\u1ed3ng r\u1eebng v\u00e0 ph\u1ea3i \u0111\u01b0\u1ee3c ti\u1ebfn h\u00e0nh tr\u00ean to\u00e0n b\u1ed9 di\u1ec7n t\u00edch gi\u00e0nh cho l\u00e2m nghi\u1ec7p sau khi quy ho\u1ea1ch s\u1eed d\u1ee5ng \u0111\u1ea5t th\u00f4n b\u1ea3n ho\u1ea1ch \u0111\u1ecbnh.<\/p>\n

– Lo\u00e0i c\u00e2y tr\u1ed3ng \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh ph\u00f9 h\u1ee3p \u0111\u1ebfn t\u1eebng l\u00f4 \u0111\u1ea5t c\u1ee7a ch\u1ee7 r\u1eebng ho\u1eb7c nh\u00f3m h\u1ed9.<\/p>\n

2. Quan \u0111i\u1ec3m v\u00e0 ph\u01b0\u01a1ng ph\u00e1p lu\u1eadn.<\/strong><\/p>\n

2.1.Quan \u0111i\u1ec3m chung.<\/em><\/p>\n

– Ph\u01b0\u01a1ng ph\u00e1p \u1ee9ng d\u1ee5ng \u0111i\u1ec1u tra l\u1eadp \u0111\u1ecba c\u1ea7n \u0111\u01a1n gi\u1ea3n v\u00e0 d\u1ec5 s\u1eed d\u1ee5ng.<\/p>\n

– C\u00e1c ch\u1ec9 ti\u00eau \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 ph\u1ea3i l\u00e0 c\u00e1c y\u1ebfu t\u1ed1 ch\u1ee7 \u0111\u1ea1o, d\u1ec5 \u0111\u1ecbnh t\u00ednh \u0111\u1ecbnh l\u01b0\u1ee3ng.<\/p>\n

2.2. Ph\u01b0\u01a1ng ph\u00e1p lu\u1eadn.<\/em><\/p>\n

– T\u1eadp \u0111o\u00e0n c\u00e2y tr\u1ed3ng c\u1ee7a t\u1eebng \u0111\u1ecba ph\u01b0\u01a1ng \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh theo v\u00f9ng sinh th\u00e1i ho\u1eb7c qua kinh nghi\u1ec7m trong s\u1ea3n xu\u1ea5t l\u00e2m nghi\u1ec7p t\u1ea1i c\u00e1c \u0111\u1ecba ph\u01b0\u01a1ng.<\/p>\n

– C\u00e1c y\u1ebfu t\u1ed1 t\u1ef1 nhi\u00ean nh\u01b0: \u0110\u1ed9 \u1ea9m, ch\u1ebf \u0111\u1ed9 nhi\u1ec7t, ch\u1ebf \u0111\u1ed9 m\u01b0a…nh\u00ecn chung \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 ph\u00f9 h\u1ee3p v\u1edbi c\u00e2y tr\u1ed3ng. Tuy nhi\u00ean, c\u1ea7n x\u00e1c \u0111\u1ecbnh c\u00e1c y\u1ebfu t\u1ed1 ch\u1ee7 \u0111\u1ea1o c\u1ee7a l\u1eadp \u0111\u1ecba \u0111\u1ec3 b\u1ed1 tr\u00ed t\u1eebng lo\u00e0i c\u00e2y ph\u00f9 h\u1ee3p tr\u00ean nh\u1eefng v\u1ecb tr\u00ed c\u1ee5 th\u1ec3.<\/p>\n

V\u00ed d\u1ee5: C\u00e2y th\u00f4ng \u0111u\u00f4i ng\u1ef1a (Pinus massoniana<\/em>) l\u00e0 lo\u00e0i c\u00e2y tr\u1ed3ng ph\u1ed5 bi\u1ebfn thu\u1ed9c c\u00e1c t\u1ec9nh c\u1ee7a d\u1ef1 \u00e1n, nh\u01b0ng kh\u00f4ng ph\u1ea3i b\u1ea5t c\u1ee9 d\u1ea1ng l\u1eadp \u0111\u1ecba n\u00e0o c\u0169ng ph\u00f9 h\u1ee3p v\u00e0 ph\u00e1t huy h\u1ebft ti\u1ec1m n\u0103ng s\u1ea3n xu\u1ea5t c\u1ee7a \u0111\u1ea5t, do \u0111\u00f3 c\u1ea7n ph\u1ea3i c\u00f3 c\u00e1c ch\u1ec9 ti\u00eau c\u1ee5 th\u1ec3 \u0111\u1ec3 quy \u0111\u1ecbnh khu v\u1ef1c tr\u1ed3ng th\u00f4ng \u0111u\u00f4i ng\u1ef1a.<\/p>\n

3. N\u1ed9i dung.<\/strong><\/p>\n

3.1 X\u00e1c \u0111\u1ecbnh c\u00e1c y\u1ebfu t\u1ed1 ch\u1ee7 \u0111\u1ea1o trong v\u00f9ng d\u1ef1 \u00e1n.<\/em><\/p>\n

Qua kh\u1ea3o s\u00e1t \u0111\u00e1nh gi\u00e1 v\u00e0 t\u1eeb kinh nghi\u1ec7m th\u1ef1c ti\u1ec5n khi \u1ee9ng d\u1ee5ng cho d\u1ef1 \u00e1n KFW1, c\u00e1c y\u1ebfu t\u1ed1 ch\u1ee7 \u0111\u1ea1o \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh d\u1ea1ng l\u1eadp \u0111\u1ecba l\u00e0:<\/p>\n

(1). Lo\u1ea1i \u0111\u1ea5t h\u00ecnh th\u00e0nh tr\u00ean c\u00e1c nh\u00f3m \u0111\u00e1 m\u1eb9.<\/p>\n

– Nh\u00f3m Fs: \u0110\u1ea5t Feralit h\u00ecnh th\u00e0nh tr\u00ean nh\u00f3m \u0111\u00e1 ph\u1ea5n sa, phi\u1ebfn th\u1ea1ch s\u00e9t;<\/p>\n

– Nh\u00f3m Fa: \u0110\u1ea5t Feralit h\u00ecnh th\u00e0nh tr\u00ean nh\u00f3m \u0111\u00e1 Macma, cu\u1ed9i k\u1ebft, Rhyolit, Granit;<\/p>\n

– Nh\u00f3m Fq: \u0110\u1ea5t Feralit h\u00ecnh th\u00e0nh tr\u00ean nh\u00f3m \u0111\u00e1 Sa th\u1ea1ch.<\/p>\n

(2). T\u1ea7ng s\u00e2u c\u01a1 gi\u1edbi c\u1ee7a \u0111\u1ea5t v\u00e0 t\u1ef7 l\u1ec7 \u0111\u00e1 l\u1eabn.<\/p>\n

– C\u1ea5p 1: \u0110\u1ed9 s\u00e2u t\u1ea7ng \u0111\u1ea5t tr\u00ean 50cm v\u00e0 c\u00f3 \u0111\u1ed9 \u0111\u00e1 l\u1eabn < 50%;<\/p>\n

– C\u1ea5p 2: \u0110\u1ed9 s\u00e2u t\u1ea7ng \u0111\u1ea5t t\u1eeb 30 – 50cm v\u00e0 \u0111\u1ed9 \u0111\u00e1 l\u1eabn < 50% ho\u1eb7c \u0111\u1ed9 s\u00e2u t\u1ea7ng \u0111\u1ea5t tr\u00ean 50cm, nh\u01b0ng \u0111\u1ed9 \u0111\u00e1 l\u1eabn > 50%;<\/p>\n

– \u0110\u1ed9 s\u00e2u t\u1ea7ng \u0111\u1ea5t < 30cm v\u00e0 \u0111\u1ed9 \u0111\u00e1 l\u1eabn > 50% ho\u1eb7c \u0111\u1ed9 s\u00e2u t\u1ea7ng \u0111\u1ea5t t\u1eeb 30 – 50cm v\u00e0 \u0111\u1ed9 \u0111\u00e3 l\u1eabn >70%.<\/p>\n

(3). C\u00e2y t\u00e1i sinh m\u1ee5c \u0111\u00edch ho\u1eb7c th\u1ef1c b\u00ec ch\u1ec9 th\u1ecb.<\/p>\n

– Nh\u00f3m a: C\u00e2y t\u00e1i sinh m\u1ee5c \u0111\u00edch tr\u00ean 400c\u00e2y\/ ha;<\/p>\n

– Nh\u00f3m b: C\u00e2y t\u00e1i sinh m\u1ee5c \u0111\u00edch t\u1eeb 150 – 400c\u00e2y\/ ha ho\u1eb7c th\u1ef1c b\u00ec c\u00e2y b\u1ee5i c\u00f3 \u0111\u1ed9 che ph\u1ee7 tr\u00ean 30%;<\/p>\n

– Nh\u00f3m c: \u0110\u1ea5t sau n\u01b0\u01a1ng r\u00e3y c\u00f2n g\u1ea7n t\u00ednh ch\u1ea5t \u0111\u1ea5t r\u1eebng kh\u00f4ng c\u00f3 ho\u1eb7c c\u00f3 th\u1ef1c b\u00ec th\u00e2n th\u1ea3o nh\u01b0 c\u1ecf l\u00e0o, v\u1eebng d\u1ea1i….C\u00e2y t\u00e1i sinh < 150c\u00e2y\/ ha.<\/p>\n

– Nh\u00f3m d: \u0110\u1ea5t tr\u1ed1ng \u0111\u1ed3i n\u00fai tr\u1ecdc, tr\u1ea3ng c\u1ecf. Th\u1ef1c b\u00ec ch\u1ec9 th\u1ecb: Sim, mua, r\u00e0ng r\u00e0ng, c\u1ecf may, c\u1ecf l\u00f4ng l\u1ee3n…<\/p>\n

3.2 T\u1ed5 h\u1ee3p c\u00e1c y\u1ebfu t\u1ed1 ch\u1ee7 \u0111\u1ea1o v\u00e0 ph\u00e2n nh\u00f3m d\u1ea1ng l\u1eadp \u0111\u1ecba.<\/em><\/p>\n

– V\u1edbi 3 y\u1ebfu t\u1ed1 ch\u1ee7 \u0111\u1ea1o tr\u00ean v\u00e0 c\u00e1c nh\u00f3m trong t\u1eebng y\u1ebfu t\u1ed1 ta s\u1ebd c\u00f3 36 d\u1ea1ng l\u1eadp \u0111\u1ecba kh\u00e1c nhau.<\/p>\n

– C\u00f3 nh\u1eefng lo\u00e0i c\u00e2y c\u00f9ng sinh tr\u01b0\u1edfng v\u00e0 ph\u00e1t tri\u1ec3n t\u1ed1t tr\u00ean m\u1ed9t s\u1ed1 d\u1ea1ng l\u1eadp \u0111\u1ecba c\u00f3 t\u00ednh ch\u1ea5t g\u1ea7n gi\u1ed1ng nhau.<\/p>\n

\u0110\u1ec3 d\u1ec5 s\u1eed d\u1ee5ng v\u00e0 \u0111\u01a1n gi\u1ea3n c\u1ea7n ti\u1ebfn h\u00e0nh gh\u00e9p nh\u00f3m d\u1ea1ng l\u1eadp \u0111\u1ecba cho c\u00e1c lo\u00e0i c\u00e2y c\u00f9ng m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng.<\/p>\n

B\u1ea3ng ph\u00e2n chia nh\u00f3m d\u1ea1ng l\u1eadp \u0111\u1ecba v\u00f9ng d\u1ef1 \u00e1n theo h\u01b0\u1edbng s\u1eed d\u1ee5ng<\/em><\/h1>\n\n\n\n\n\n\n\n\n
Nh\u00f3m d\u1ea1ng l\u1eadp \u0111\u1ecba<\/em><\/td>\nD\u1ea1ng l\u1eadp \u0111\u1ecba<\/em><\/td>\nH\u01b0\u1edbng s\u1eed d\u1ee5ng<\/em><\/td>\n<\/tr>\n
A<\/td>\nA1<\/td>\nFs3a,Fa3a,Fq3a,Fs3b,Fa3b,Fq3b<\/p>\n

Fs1a,Fa1a,Fq1a<\/td>\n

Khoanh nu\u00f4i t\u00e1i sinh kh\u00f4ng tr\u1ed3ng b\u1ed5 sung.<\/td>\n<\/tr>\n
A2<\/td>\nFs1a,Fs2a,Fa1a,Fa2a,Fq1a,Fq2a<\/td>\nKhoanh nu\u00f4i t\u00e1i sinh c\u00f3 tr\u1ed3ng b\u1ed5 sung.<\/td>\n<\/tr>\n
B<\/td>\nFs1b, Fs2b,Fa1b, Fa2b, Fq1b, Fq2b<\/td>\nTr\u1ed3ng r\u1eebng m\u1edbi: Nh\u1eefng c\u00e2y b\u1ea3n \u0111\u1ecba ch\u1ecbu b\u00f3ng v\u00e0 trung t\u00ednh.<\/td>\n<\/tr>\n
C<\/td>\nFs1c, Fa1c<\/td>\nTr\u1ed3ng r\u1eebng m\u1edbi: Nh\u1eefng c\u00e2y b\u1ea3n \u0111\u1ecba \u01b0a s\u00e1ng ho\u1eb7c c\u00e2y trung t\u00ednh c\u00f3 c\u00e2y ph\u00f9 tr\u1ee3.<\/td>\n<\/tr>\n
D<\/td>\nFs3c, Fa3c, Fq3c, Fs3d, Fa3d, Fq3d<\/p>\n

Fs2c, Fa2c, Fq2c, Fs2d, Fa2d, Fq2d<\/p>\n

Fq1c, Fq1d, Fa1d, Fs1d,<\/p>\n

Fs1C*, Fa1c*<\/td>\n

Tr\u1ed3ng r\u1eebng m\u1edbi: Nh\u1eefng c\u00e2y \u01b0a s\u00e1ng ch\u1ecbu \u0111\u01b0\u1ee3c n\u01a1i \u0111\u1ea5t x\u1ea5u, t\u1ea7ng \u0111\u1ea5t n\u00f4ng k\u1ebft h\u1ee3p c\u00e2y ph\u00f9 tr\u1ee3.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Ghi ch\u00fa: <\/em><\/strong>C*: Thu\u1ed9c nh\u1eefng n\u01a1i v\u1ecb tr\u00ed \u0111\u1ec9nh, c\u00f3 \u0111\u1ed9 cao t\u01b0\u01a1ng \u0111\u1ed1i tr\u00ean 30m ho\u1eb7c h\u01b0\u1edbng ph\u01a1i ph\u00eda T\u00e2y kh\u00f4 h\u1ea1n. Nh\u00f3m th\u1ef1c b\u00ec a thu\u1ed9c nh\u00f3m d\u1ea1ng l\u1eadp \u0111\u1ecba A1 c\u00f3 c\u00e2y t\u00e1i sinh m\u1ee5c \u0111\u00edch t\u1eeb 800c\u00e2y\/ ha tr\u1edf l\u00ean.<\/p>\n

3.3 Th\u00e0nh qu\u1ea3 c\u1ee7a \u0111i\u1ec1u tra l\u1eadp \u0111\u1ecba.<\/em><\/p>\n

(1). X\u00e2y d\u1ef1ng b\u1ea3n \u0111\u1ed3 nh\u00f3m d\u1ea1ng l\u1eadp \u0111\u1ecba 1:5.000 c\u1ea5p th\u00f4n b\u1ea3n;<\/p>\n

(2). \u0110\u1ec1 xu\u1ea5t c\u00e2y tr\u1ed3ng theo nh\u00f3m d\u1ea1ng l\u1eadp \u0111\u1ecba;<\/p>\n

Trong t\u1eebng v\u00f9ng sinh th\u00e1i c\u1ee7a d\u1ef1 \u00e1n (huy\u1ec7n ho\u1eb7c m\u1ed9t s\u1ed1 x\u00e3): X\u00e1c \u0111\u1ecbnh t\u1eadp \u0111o\u00e0n c\u00e2y tr\u1ed3ng.<\/p>\n

V\u00ed d\u1ee5:<\/p>\n

B\u1ea3ng \u0111\u1ec1 xu\u1ea5t c\u00e2y tr\u1ed3ng v\u00f9ng d\u1ef1 \u00e1n huy\u1ec7n L\u1ee5c Ng\u1ea1n – T\u1ec9nh B\u1eafc Giang<\/strong> <\/em><\/p>\n\n\n\n\n\n\n\n\n
Nh\u00f3m<\/em><\/strong><\/p>\n

DL\u0110<\/em><\/strong><\/td>\n

Lo\u00e0i c\u00e2y theo th\u1ee9 t\u1ef1 \u01b0u ti\u00ean<\/em><\/strong><\/td>\n<\/tr>\n
1<\/em><\/strong><\/td>\n2<\/em><\/strong><\/td>\n3<\/em><\/strong><\/td>\n4<\/em><\/strong><\/td>\n5<\/em><\/strong><\/td>\n6<\/em><\/strong><\/td>\n<\/tr>\n
A2<\/td>\nLim xanh<\/p>\n

Limxa.+Limx\u1eb9t<\/p>\n

Limxa.+Tr.\u0111en<\/td>\n

Lim x\u1eb9t<\/p>\n

Limx\u1eb9t+Tr.tr\u1eafg<\/p>\n

Limx\u1eb9t+Tr.\u0111en<\/td>\n

Tr\u00e1m \u0111en<\/p>\n

Tr.\u0111+Tr\u00e1mtr\u1eafng<\/p>\n

Tr.\u0111+Lim x\u1eb9t<\/td>\n

Tr\u00e1m tr\u1eafng<\/p>\n

Tr.trg+Tr.\u0111<\/td>\n

Gi\u1ebb<\/p>\n

Gi\u1ebb+Lim x\u1eb9t<\/td>\n<\/tr>\n

B<\/td>\nTr\u00e1m tr\u1eafng<\/p>\n

Tr.tr +L\u00e1t hoa<\/p>\n

Tr.tr + V\u1ed1i thu\u1ed1c<\/td>\n

L\u00e1t hoa<\/p>\n

L\u00e1t hoa+V\u1ed1i th.<\/p>\n

L\u00e1t ho\u00e1+S\u1ea5u<\/td>\n

Lim x\u1eb9t<\/p>\n

Limx.+V\u1ed1i thu\u1ed1c<\/p>\n

Limxe+Tr\u00e1mtr\u1eafg<\/td>\n

V\u1ed1i thu\u1ed1c<\/p>\n

V\u1ed1ith+L\u00e1t<\/p>\n

V\u1ed1ith+Tr\u00e1m<\/td>\n

S\u1ea5u<\/p>\n

S\u1ea5u+L\u00e1t<\/td>\n

Tr\u00e2m<\/p>\n

Tr\u00e2m+S\u1ea5u<\/td>\n<\/tr>\n

C<\/td>\nTr\u00e1mtr.+Keo Lt.<\/td>\nL\u00e1t+KeoLt<\/td>\nV\u1ed1i thu\u1ed1c<\/p>\n

V\u1ed1i thu\u1ed1c+s\u1ea5u<\/td>\n

S\u1ea5u + L\u00e1t<\/td>\n<\/tr>\n
D<\/td>\nTh\u00f4ng\u0111n+Keo Lt<\/td>\nTh\u00f4ng \u0111.ng\u1ef1a<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

(3). Th\u1ea3o lu\u1eadn v\u1edbi c\u00e1c ch\u1ee7 r\u1eebng ch\u1ecdn lo\u00e0i c\u00e2y tr\u1ed3ng cho h\u1ed9 ho\u1eb7c nh\u00f3m h\u1ed9.<\/p>\n

– Th\u00f4ng b\u00e1o v\u1edbi c\u00e1c ch\u1ee7 r\u1eebng v\u1ec1 c\u00e1c nh\u00f3m d\u1ea1ng l\u1eadp \u0111\u1ecba thu\u1ed9c khu v\u1ef1c tr\u1ed3ng r\u1eebng c\u1ee7a h\u1ecd v\u00e0 t\u1eadp \u0111o\u00e0n c\u00e2y tr\u1ed3ng.<\/p>\n

– Th\u1ea3o lu\u1eadn v\u1edbi c\u00e1c ch\u1ee7 r\u1eebng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh lo\u00e0i c\u00e2y tr\u1ed3ng c\u1ee5 th\u1ec3 \u0111\u1ed1i v\u1edbi t\u1eebng h\u1ed9 ho\u1eb7c nh\u00f3m h\u1ed9<\/p>\n

4. K\u1ebft qu\u1ea3.<\/strong><\/p>\n

– Ph\u01b0\u01a1ng ph\u00e1p \u1ee9ng d\u1ee5ng \u0111i\u1ec1u tra l\u1eadp \u0111\u1ecba tr\u00ean \u0111\u00e3 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng cho tr\u00ean 30.000ha tr\u1ed3ng r\u1eebng m\u1edbi \u0111\u1ed1i v\u1edbi c\u00e1c lo\u00e0i c\u00e2y: H\u1ed3i, tr\u00e1m, sa m\u1ed9c, th\u00f4ng \u0111u\u00f4i ng\u1ef1a, th\u00f4ng nh\u1ef1a, keo l\u00e1 tr\u00e0m, keo tai t\u01b0\u1ee3ng, v\u1ed1i thu\u1ed1c v\u00e0 khoanh nu\u00f4i t\u00e1i sinh. Nh\u1eefng n\u01a1i tr\u1ed3ng \u0111\u00fang lo\u00e0i c\u00e2y do \u0111i\u1ec1u tra l\u1eadp \u0111\u1ecba x\u00e1c \u0111\u1ecbnh ph\u00e1t tri\u1ec3n t\u1ed1t.<\/p>\n

– C\u00e1c \u0111\u1ee3t th\u1ea9m \u0111\u1ecbnh \u0111\u00e1nh gi\u00e1 c\u1ee7a c\u00e1c chuy\u00ean gia trong v\u00e0 ngo\u00e0i n\u01b0\u1edbc \u0111\u1ec1u kh\u1eb3ng \u0111\u1ecbnh \u0111i\u1ec1u tra l\u1eadp \u0111\u1ecba l\u00e0 h\u1eefu \u00edch v\u00e0 c\u1ea7n thi\u1ebft \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh b\u1ed1 tr\u00ed c\u00e2y tr\u1ed3ng cho c\u00e1c ch\u1ee7 r\u1eebng v\u00e0 ch\u1ee7 \u0111\u1ed9ng gi\u00fap c\u00e1c c\u01a1 s\u1edf x\u00e2y d\u1ef1ng k\u1ebf ho\u1ea1ch tr\u1ed3ng r\u1eebng h\u00e0ng n\u0103m.<\/p>\n

– Do t\u1ea7m quan tr\u1ecdng v\u00e0 c\u1ea7n thi\u1ebft c\u1ee7a \u0111i\u1ec1u tra l\u1eadp \u0111\u1ecba, c\u00e1c d\u1ef1 \u00e1n KFW quy \u0111\u1ecbnh: Tr\u01b0\u1edbc khi thi\u1ebft k\u1ebf tr\u1ed3ng r\u1eebng, nh\u1ea5t thi\u1ebft ph\u1ea3i ti\u1ebfn h\u00e0nh \u0111i\u1ec1u tra l\u1eadp \u0111\u1ecba. N\u01a1i n\u00e0o, h\u1ed9 n\u00e0o kh\u00f4ng \u0111i\u1ec1u tra l\u1eadp \u0111\u1ecba s\u1ebd kh\u00f4ng \u0111\u01b0\u1ee3c tr\u1ed3ng r\u1eebng ho\u1eb7c tr\u1ed3ng r\u1eebng kh\u00f4ng \u0111\u00fang lo\u00e0i c\u00e2y m\u00e0 \u0111i\u1ec1u tra l\u1eadp \u0111\u1ecba x\u00e1c \u0111\u1ecbnh s\u1ebd kh\u00f4ng \u0111\u01b0\u1ee3c nghi\u1ec7m thu.<\/p>\n

5. \u0110\u00e1nh gi\u00e1 v\u00e0 b\u00ecnh lu\u1eadn.<\/strong><\/p>\n

– \u0110i\u1ec1u tra l\u1eadp \u0111\u1ecba kh\u00f4ng nh\u1eefng c\u1ea7n thi\u1ebft cho c\u00f4ng t\u00e1c tr\u1ed3ng r\u1eebng, khoanh nu\u00f4i t\u00e1i sinh t\u1ef1 nhi\u00ean cho tr\u01b0\u1edbc m\u1eaft b\u1ea3o \u0111\u1ea3m c\u00e2y tr\u1ed3ng c\u00f3 t\u1ef7 l\u1ec7 s\u1ed1ng cao, sinh tr\u01b0\u1edfng ph\u00e1t tri\u1ec3n t\u1ed1t, m\u00e0 v\u1ec1 l\u00e2u d\u00e0i c\u00f2n t\u1ea1o \u0111\u01b0\u1ee3c s\u1ef1 b\u1ec1n v\u1eefng cho l\u00e2m ph\u1ea7n.<\/p>\n

– Vi\u1ec7c \u1ee9ng d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec1u tra l\u1eadp \u0111\u1ecba ph\u1ee5 thu\u1ed9c v\u00e0o \u0111i\u1ec1u ki\u1ec7n \u0111\u1eb7c th\u00f9 c\u1ee7a t\u1eebng v\u00f9ng v\u00e0 y\u00eau c\u1ea7u c\u1ee7a t\u1eebng d\u1ef1 \u00e1n. Do \u0111\u00f3, trong qu\u00e1 tr\u00ecnh th\u1ef1c hi\u1ec7n, c\u00e1c d\u1ef1 \u00e1n lu\u00f4n c\u00f3 hi\u1ec7u \u0111\u00ednh, s\u1eeda \u0111\u1ed5i b\u1ed5 sung \u0111\u1ec3 \u0111\u01a1n gi\u1ea3n h\u01a1n, c\u1ee5 th\u1ec3 h\u01a1n.<\/p>\n

T\u00e0i li\u1ec7u tham kh\u1ea3o<\/p>\n

1. \u0110\u1ed7 \u0110\u00ecnh S\u00e2m, Ng\u00f4 \u0110\u00ecnh Qu\u1ebf. \u0110\u00e1nh gi\u00e1 ti\u1ec1m n\u0103ng s\u1ea3n xu\u1ea5t \u0111\u1ea5t l\u00e2m nghi\u1ec7p v\u00e0 ho\u00e0n thi\u1ec7n ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec1u tra l\u1eadp \u0111\u1ecba. \u0110\u1ec1 t\u00e0i c\u1ea5p Nh\u00e0 n\u01b0\u1edbc KN 03 – 01 – Vi\u1ec7n KHLN Vi\u1ec7t Nam, 1995.<\/p>\n

2. V\u1ee5 Khoa h\u1ecdc C\u00f4ng ngh\u1ec7 B\u1ed9 L\u00e2m nghi\u1ec7p. K\u1ef9 thu\u1eadt tr\u1ed3ng m\u1ed9t s\u1ed1 lo\u00e0i c\u00e2y r\u1eebng.NXB NN H\u00e0 N\u1ed9i, 1994.<\/p>\n

3. B\u1ed9 L\u00e2m nghi\u1ec7p. Quy tr\u00ecnh \u0111i\u1ec1u tra l\u1eadp \u0111\u1ecba c\u1ea5p I – NXB NN 1971.<\/p>\n

4. Nguy\u1ec5n V\u0103n Kh\u00e1nh. \u0110i\u1ec1u tra v\u00e0 \u0111\u00e1nh gi\u00e1 l\u1eadp \u0111\u1ecba trong l\u00e2m nghi\u1ec7p – T\u1ea1p ch\u00ed l\u00e2m nghi\u1ec7p 9\/ 1993.<\/p>\n

5. H\u1ed9i Khoa h\u1ecdc \u0110\u1ea5t Vi\u1ec7t Nam. \u0110\u1ea5t Vi\u1ec7t Nam- NXB NN Vi\u1ec7t Nam1996<\/p>\n

6. Ng\u00f4 \u0110\u00ecnh Qu\u1ebf, Nguy\u1ec5n Kh\u1eafc Ninh. Quy tr\u00ecnh t\u1ea1m th\u1eddi \u0111i\u1ec1u tra x\u00e2y d\u1ef1ng b\u1ea3n \u0111\u1ed3 d\u1ea1ng l\u1eadp \u0111\u1ecba cho c\u00e1c D\u1ef1 \u00e1n tr\u1ed3ng r\u1eebng Vi\u1ec7t – \u0110\u1ee9c KFW1 ( L\u1ea1ng S\u01a1n – H\u00e0 B\u1eafc, 1996 ). KFW2 ( H\u00e0 T\u0129nh – Qu\u1ea3ng B\u00ecnh – Qu\u1ea3ng Tr\u1ecb, 1998 ). KFW3 ( L\u1ea1ng S\u01a1n – B\u1eafc Giang – Qu\u1ea3ng Ninh, 2000 ). D\u1ef1 \u00e1n khu v\u1ef1c l\u00e2m nghi\u1ec7p ADB ( Gia Lai – Ph\u00fa Y\u00ean – Qu\u1ea3ng Tr\u1ecb v\u00e0 Thanh Ho\u00e1, 1998 ). L\u00e2m nghi\u1ec7p x\u00e3 h\u1ed9i s\u00f4ng \u0110\u00e0 (S\u01a1n La – Lai Ch\u00e2u , 1999 ).<\/p>\n

7. Vi\u1ec7n \u0110i\u1ec1u tra Quy ho\u1ea1ch r\u1eebng. H\u01b0\u1edbng d\u1eabn \u0111i\u1ec1u tra l\u00e2m h\u1ecdc ph\u1ee5c v\u1ee5 ch\u01b0\u01a1ng tr\u00ecnh \u0111i\u1ec1u tra c\u01a1 b\u1ea3n, 1991 – 1995 – Vi\u1ec7n \u0110TQHR 4\/ 1991. <\/em><\/strong><\/p>\n

Application of site survey method in forest planting and forest regrowth maintenance in some international forestry project in Viet Nam.<\/strong><\/p>\n

Summary:<\/em><\/strong>Site survey method applied in forest planting and forest regrowth maintenance is appreciated in Viet Nam. Content of this method consists of:<\/p>\n

– Identifying leading factors in the project regions such as: Soil types generated from different parent rocks, depth of soil layer, ratio of mixed stone fragments, desired regenerated species and indicator vegetation.<\/p>\n

– Collection of leading factors and grouping of soil types for use objectives.<\/p>\n

This method has been applied on 30,000ha. Serving new forest planting. Results show that where appropriate species were planted as determined by site survey, tree growth is good.<\/p>\n

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

\u0110i\u1ec1u tra l\u1eadp \u0111\u1ecba luôn \u0111\u01b0\u1ee3c \u0111ánh giá là c\u1ea7n thi\u1ebft và quan tr\u1ecdng trong công tác tr\u1ed3ng r\u1eebng. T\u1eeb nh\u1eefng n\u0103m 1970, trong ch\u01b0\u01a1ng trình h\u1ee3p tác lâm nghi\u1ec7p v\u1edbi C.H.D.C \u0110\u1ee9c, các chuyên gia lâm nghi\u1ec7p \u0110\u1ee9c \u0111ã \u0111\u01b0a công tác \u0111i\u1ec1u tra l\u1eadp \u0111\u1ecba ph\u1ee5c v\u1ee5 cho quy ho\u1ea1ch tr\u1ed3ng r\u1eebng thông nh\u1ef1a \u1edf t\u1ec9nh Qu\u1ea3ng Ninh. N\u0103m 1971, ngành Lâm nghi\u1ec7p Vi\u1ec7t Nam\u0111ã ban hành quy trình v\u1ec1 \u0111i\u1ec1u tra l\u1eadp \u0111\u1ecba c\u1ea5pI.Tuy nhiên, vi\u1ec7c v\u1eadn d\u1ee5ng quy trình trên còn h\u1ea1n ch\u1ebf, ch\u1ee7 y\u1ebfu ch\u1ec9 mô t\u1ea3 các \u0111i\u1ec1u ki\u1ec7n l\u1eadp \u0111\u1ecba khi thi\u1ebft k\u1ebf tr\u1ed3ng r\u1eebng. <\/p>\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\/8589"}],"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=8589"}],"version-history":[{"count":2,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/8589\/revisions"}],"predecessor-version":[{"id":19312,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/8589\/revisions\/19312"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=8589"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=8589"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=8589"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}