B\u00e0i 1 trang 23 T\u1eadp b\u1ea3n \u0111\u1ed3 \u0110\u1ecba L\u00ed 12:<\/b>D\u1ef1a v\u00e0o s\u1ed1 li\u1ec7u c\u1ee7a b\u1ea3ng 14.1 trong SGK \u0110\u1ecba l\u00ed 12:<\/span><\/p>\n

L\u1eddi gi\u1ea3i:<\/b><\/p>\n

– H\u00e3y v\u1ebd bi\u1ec3u \u0111\u1ed3 c\u1ed9t ch\u1ed3ng th\u1ec3 hi\u1ec7n s\u1ef1 bi\u1ebfn \u0111\u1ed9ng c\u1ee7a di\u1ec7n t\u00edch r\u1eebng qua m\u1ed9t s\u1ed1 n\u0103m.<\/p>\n

<\/p>\n

– Nh\u1eadn x\u00e9t: t\u1ed5ng di\u1ec7n t\u00edch r\u1eebng, di\u1ec7n t\u00edch r\u1eebng tr\u1ed3ng, r\u1eebng t\u1ef1 nhi\u00ean c\u00f3 s\u1ef1 bi\u1ebfn \u0111\u1ed9ng.<\/p>\n

+ T\u1ed5ng di\u1ec7n t\u00edch r\u1eebng gi\u1ea3m nhanh t\u1eeb 14,3 tri\u1ec7u ha (1943) xu\u1ed1ng 7,2 tri\u1ec7u ha (1983), sau \u0111\u00f3 t\u0103ng l\u00ean 12,7 tri\u1ec7u ha (2005).<\/p>\n

+ Di\u1ec7n t\u00edch r\u1eebng tr\u1ed3ng t\u0103ng kh\u00e1 nhanh t\u1eeb 0,4 tri\u1ec7u ha (1983) l\u00ean 2,5 tri\u1ec7u ha (2005).<\/p>\n

+ Di\u1ec7n t\u00edch r\u1eebng t\u1ef1 nhi\u00ean gi\u1ea3m nhanh t\u1eeb 14,3 tri\u1ec7u ha xu\u1ed1ng 6,8 tri\u1ec7u ha (1983) sau \u0111\u00f3 t\u0103ng l\u00ean 10,2 tri\u1ec7u ha (2005).<\/p>\n

B\u00e0i 2 trang 23 T\u1eadp b\u1ea3n \u0111\u1ed3 \u0110\u1ecba L\u00ed 12:<\/b>\u00a0N\u00eau vai tr\u00f2, \u00fd ngh\u0129a kinh t\u1ebf v\u00e0 c\u00e1c bi\u1ec7n ph\u00e1p b\u1ea3o v\u1ec7 t\u00e0i nguy\u00ean r\u1eebng v\u00e0 \u0111a d\u1ea1ng sinh h\u1ecdc \u1edf n\u01b0\u1edbc ta.<\/span><\/p>\n

L\u1eddi gi\u1ea3i:<\/b><\/p>\n

V\u1ec1 c\u00e1c bi\u1ec7n ph\u00e1p b\u1ea3o v\u1ec7 t\u00e0i nguy\u00ean r\u1eebng:<\/b><\/p>\n

– Ban h\u00e0nh Lu\u1eadt B\u1ea3o v\u1ec7 v\u00e0 ph\u00e1t tri\u1ec3n r\u1eebng.<\/p>\n

– Th\u1ef1c hi\u1ec7n nhi\u1ec1u ch\u00ednh s\u00e1ch giao quy\u1ec1n s\u1eed dung \u0111\u1ea5t v\u00e0 b\u1ea3o v\u1ec7 r\u1eebng cho ng\u01b0\u1eddi d\u00e2n.<\/p>\n

– N\u00e2ng cao \u00fd th\u1ee9c b\u1ea3o v\u1ec7 r\u1eebng.<\/p>\n

V\u1ec1 c\u00e1c bi\u1ec7n ph\u00e1p b\u1ea3o v\u1ec7 s\u1ef1 \u0111a d\u1ea1ng sinh h\u1ecdc:<\/b><\/p>\n

– X\u00e2y d\u1ef1ng v\u00e0 m\u1edf r\u1ed9ng h\u1ec7 th\u1ed1ng v\u01b0\u1eddn qu\u1ed1c gia v\u00e0 khu b\u1ea3o t\u1ed3n thi\u00ean nhi\u00ean.<\/p>\n

– Ban h\u00e0nh \u201cs\u00e1ch \u0110\u1ecf Vi\u1ec7t Nam\u201d.<\/p>\n

B\u00e0i 3 trang 23 T\u1eadp b\u1ea3n \u0111\u1ed3 \u0110\u1ecba L\u00ed 12:<\/b>H\u00e3y \u0111i\u1ec1n n\u1ed9i dung ph\u00f9 h\u1ee3p v\u00e0o b\u1ea3ng d\u01b0\u1edbi cho \u0111\u00fang:<\/span><\/p>\n

L\u1eddi gi\u1ea3i:<\/b><\/p>\n\n\n\n\n

Hi\u1ec7n tr\u1ea1ng s\u1eed d\u1ee5ng t\u00e0i nguy\u00ean \u0111\u1ea5t<\/td>\n

C\u00e1c bi\u1ec7n ph\u00e1p b\u1ea3o v\u1ec7<\/td>\n<\/tr>\n

– C\u00f3 kho\u1ea3ng 12, 7 tri\u1ec7u ha \u0111\u1ea5t c\u00f3 r\u1eebng che ph\u1ee7 (\u0111\u1ea1t kh\u1ea3ng 40%), ch\u01b0a \u0111\u1ea3m b\u1ea3o c\u00e2n b\u1eb1ng sinh th\u00e1i m\u00f4i tr\u01b0\u1eddng trong \u0111i\u1ec1u ki\u1ec7n \u0111\u1ecba h\u00ecnh v\u00e0 kh\u00ed h\u1eadu Vi\u1ec7t Nam.<\/p>\n – \u0110\u1ea5t n\u00f4ng nghi\u1ec7p ch\u1ec9 \u0111\u1ea1t 9,4 tri\u1ec7u ha (28,4 %), b\u00ecnh qu\u00e2n \u0111\u1ea5t n\u00f4ng nghi\u1ec7p ch\u1ec9 \u0111\u1ea1t 0,1 ha\/ng\u01b0\u1eddi.<\/p>\n – \u0110\u1ea5t ch\u01b0a s\u1eed d\u1ee5ng c\u00f2n nhi\u1ec1u (7,2 tri\u1ec7u ha), vi\u1ec7c c\u1ea3i t\u1ea1o v\u00e0 s\u1eed d\u1ee5ng c\u00f2n g\u1eb7p nhi\u1ec1u kh\u00f3 kh\u0103n, di\u1ec7n t\u00edch \u0111\u1ea5t \u0111\u1ed3i n\u00fai b\u1ecb tho\u00e1i h\u00f3a l\u00e0 5 tri\u1ec7u ha.<\/p>\n – Hi\u1ec7n nay n\u01b0\u1edbc ta c\u00f3 kho\u1ea3ng 9,3 tri\u1ec7u ha \u0111\u1ea5t b\u1ecb \u0111e d\u1ecda hoang m\u1ea1c h\u00f3a (28% di\u1ec7n t\u00edch \u0111\u1ea5t \u0111ai).<\/td>\n

– \u0110\u1ed1i v\u1edbi \u0111\u1ea5t v\u00f9ng n\u00fai:<\/p>\n + \u00c1p d\u1ee5ng t\u1ed5ng th\u1ec3 bi\u1ec7n ph\u00e1p th\u1ee7y l\u1ee3i, canh t\u00e1c: l\u00e0m ru\u1ed9ng b\u1eadc thang, \u0111\u00e0o h\u1ed1 v\u1ea9y c\u00e1, tr\u1ed3ng c\u00e2y theo b\u0103ng.<\/p>\n + Bi\u1ec7n ph\u00e1p n\u00f4ng \u2013 l\u00e2m k\u1ebft h\u1ee3p.<\/p>\n + B\u1ea3o v\u1ec7 r\u1eebng, gi\u1eef ngu\u1ed3n n\u01b0\u1edbc.<\/p>\n – \u0110\u1ed1i v\u1edbi \u0111\u1ed3ng b\u1eb1ng:<\/p>\n + C\u00f3 k\u1ebf ho\u1ea1ch qu\u1ea3n l\u00ed ch\u1eb7t ch\u1ebd v\u00e0 m\u1edf r\u1ed9ng di\u1ec7n t\u00edch \u0111\u1ea5t.<\/p>\n + Th\u00e2m canh, canh t\u00e1c h\u1ee3p l\u00ed, tr\u00e1nh l\u00e0m \u0111\u1ea5t b\u1ecb tho\u00e1i h\u00f3a.<\/p>\n + Ch\u1ed1ng \u00f4 nhi\u1ec5m \u0111\u1ea5t do ch\u1ea5t h\u00f3a h\u1ecdc, thu\u1ed1c tr\u1eeb s\u00e2u, n\u01b0\u1edbc th\u1ea3i…<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n <\/div>\n \n \n B\u00e0i 4 trang 24 T\u1eadp b\u1ea3n \u0111\u1ed3 \u0110\u1ecba L\u00ed 12:<\/b>H\u00e3y \u0111i\u1ec1n n\u1ed9i dung ph\u00f9 h\u1ee3p v\u00e0o s\u01a1 \u0111\u1ed3 d\u01b0\u1edbi \u0111\u00e2y \u0111\u1ec3 th\u1ec3 hi\u1ec7n r\u00f5 vi\u1ec7c s\u1eed d\u1ee5ng v\u00e0 b\u1ea3o v\u1ec7 t\u00e0i nguy\u00ean \u1edf Vi\u1ec7t Nam.<\/span><\/p>\n L\u1eddi gi\u1ea3i:<\/b><\/p>\n <\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":" B\u00e0i 1 trang 23 T\u1eadp b\u1ea3n \u0111\u1ed3 \u0110\u1ecba L\u00ed 12:D\u1ef1a v\u00e0o s\u1ed1 li\u1ec7u c\u1ee7a b\u1ea3ng 14.1 trong SGK \u0110\u1ecba l\u00ed 12: L\u1eddi gi\u1ea3i: – H\u00e3y v\u1ebd bi\u1ec3u \u0111\u1ed3 c\u1ed9t ch\u1ed3ng th\u1ec3 hi\u1ec7n s\u1ef1 bi\u1ebfn \u0111\u1ed9ng c\u1ee7a di\u1ec7n t\u00edch r\u1eebng qua m\u1ed9t s\u1ed1 n\u0103m. – Nh\u1eadn x\u00e9t: t\u1ed5ng di\u1ec7n t\u00edch r\u1eebng, di\u1ec7n t\u00edch r\u1eebng tr\u1ed3ng, r\u1eebng […]<\/p>\n","protected":false},"author":3,"featured_media":25531,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"tdm_status":"","tdm_grid_status":""},"categories":[1308],"tags":[1438,1437],"yoast_head":"\n