B\u00e0i 1 trang 68 T\u1eadp b\u1ea3n \u0111\u1ed3 \u0110\u1ecba L\u00ed 12:<\/b>T\u1eeb s\u1ed1 li\u1ec7u \u1edf b\u1ea3ng 38.1 trong SGK \u0110\u1ecba l\u00ed 12, h\u00e3y v\u1ebd bi\u1ec3u \u0111\u1ed3 th\u00edch h\u1ee3p th\u1ec3 hi\u1ec7n di\u1ec7n t\u00edch c\u00e2y c\u00f4ng nghi\u1ec7p l\u00e2u n\u0103m ph\u00e2n theo c\u00e1c lo\u1ea1i c\u00e2y c\u1ee7a n\u01b0\u1edbc ta, c\u1ee7a Trung du mi\u1ec1n n\u00fai B\u1eafc B\u1ed9 v\u00e0 T\u00e2y Nguy\u00ean n\u0103m 2005 v\u00e0 n\u00eau nh\u1eadn x\u00e9t:<\/span><\/p>\n L\u1eddi gi\u1ea3i:<\/b><\/p>\n – Ch\u1ecdn bi\u1ec3u \u0111\u1ed3 th\u00edch h\u1ee3p: C\u1ed9t ch\u1ed3ng<\/p>\n – V\u1ebd bi\u1ec3u \u0111\u1ed3:<\/p>\n <\/p>\n Nh\u1eadn x\u00e9t:<\/p>\n – T\u00e2y nguy\u00ean c\u00f3 t\u1ed5ng di\u1ec7n t\u00edch c\u00e2y c\u00f4ng nghi\u1ec7p l\u00e2u n\u0103m l\u1edbn (th\u1ee9 hai c\u1ea3 n\u01b0\u1edbc ), kho\u1ea3ng 1\/3 c\u1ea3 n\u01b0\u1edbc, g\u1ea5p 7 l\u1ea7n Trung du B\u1eafc B\u1ed9.<\/p>\n – Trung du mi\u1ec1n n\u00fai B\u1eafc B\u1ed9 c\u00f3 th\u1ebf m\u1ea1nh l\u00e0 c\u00e2y ch\u00e8 (90%)<\/p>\n – T\u00e2y Nguy\u00ean v\u1edbi th\u1ebf m\u1ea1nh l\u00e0 c\u00e2y c\u00e0 ph\u00ea, cao su.<\/p>\n B\u00e0i 2 trang 68 T\u1eadp b\u1ea3n \u0111\u1ed3 \u0110\u1ecba L\u00ed 12:<\/b>\u00a0D\u1ef1a v\u00e0 v\u00e0o b\u1ea3ng s\u1ed1 li\u1ec7u, h\u00e3y t\u00ednh % v\u00e0 \u0111i\u1ec1n ti\u1ebfp v\u00e0o b\u1ea3ng d\u01b0\u1edbi, sau \u0111\u00f3 v\u1ebd bi\u1ec3u \u0111\u1ed3 th\u1ec3 hi\u1ec7n quy m\u00f4 \u0111\u00e0n tr\u00e2u, b\u00f2 c\u1ee7a c\u1ea3 n\u01b0\u1edbc v\u00e0 c\u01a1 c\u1ea5u c\u1ee7a ch\u00fang ph\u00e2n theo v\u00f9ng n\u0103m 1995 v\u00e0 2008.<\/span><\/p>\n L\u1eddi gi\u1ea3i:<\/b><\/p>\n S\u1ed1 l\u01b0\u1ee3ng tr\u00e2u, b\u00f2 c\u1ee7a hai v\u00f9ng v\u00e0 c\u1ee7a c\u1ea3 n\u01b0\u1edbc (ngh\u00ecn con)<\/p>\n – X\u1eed l\u00ed s\u1ed1 li\u1ec7u (t\u00ednh % v\u00e0 \u0111i\u1ec1n v\u00e0o c\u1ed9t tr\u1ed1ng \u1edf b\u1ea3ng tr\u00ean)<\/p>\n – T\u00ednh r:<\/p>\n Tr\u00e2u: N\u1ebfu l\u1ea5y b\u00e1n k\u00ednh (r ) c\u1ee7a v\u00f2ng tr\u00f2n th\u1ec3 hi\u1ec7n n\u0103m 1995 l\u00e0 r = 1.0 th\u00ec b\u00e1n k\u00ednh c\u1ee7a v\u00f2ng tr\u00f2n th\u1ec3 hi\u1ec7n n\u0103m 2008 l\u00e0:<\/p>\n <\/p>\n B\u00f2: N\u1ebfu l\u1ea5y b\u00e1n k\u00ednh (r ) c\u1ee7a v\u00f2ng tr\u00f2n th\u1ec3 hi\u1ec7n n\u0103m 1995 l\u00e0 r = 1.0 th\u00ec b\u00e1n k\u00ednh c\u1ee7a v\u00f2ng tr\u00f2n th\u1ec3 hi\u1ec7n n\u0103m 2008 l\u00e0:<\/p>\n <\/p>\n <\/p>\n <\/p>\n B\u00e0i 3 trang 69 T\u1eadp b\u1ea3n \u0111\u1ed3 \u0110\u1ecba L\u00ed 12:<\/b>D\u1ef1a v\u00e0o ki\u1ebfn th\u1ee9c \u0111\u00e3 h\u1ecdc, h\u00e3y gi\u1ea3i th\u00edch v\u00ec sao \u1edf Trung du v\u00e0 mi\u1ec1n n\u00fai B\u1eafc B\u1ed9 tr\u00e2u \u0111\u01b0\u1ee3c nu\u00f4i nhi\u1ec1u h\u01a1n, c\u00f2n \u1edf T\u00e2y Nguy\u00ean th\u00ec ng\u01b0\u1ee3c l\u1ea1i.<\/span><\/p>\n L\u1eddi gi\u1ea3i:<\/b><\/p>\n Trung du mi\u1ec1n n\u00fai B\u1eafc B\u1ed9, tr\u00e2u \u0111\u01b0\u1ee3c nu\u00f4i nhi\u1ec1u h\u01a1n b\u00f2, c\u00f2n \u1edf T\u00e2y Nguy\u00ean th\u00ec ng\u01b0\u1ee3c l\u1ea1i v\u00ec :<\/p>\n – Trung du mi\u1ec1n n\u00fai B\u1eafc B\u1ed9 c\u00f3 kh\u00ed h\u1eadu l\u1ea1nh v\u00e0o m\u00f9a \u0111\u00f4ng, tr\u00e2u c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu r\u00e9t, \u1ea9m \u01b0\u1edbt gi\u1ecfi h\u01a1n b\u00f2, th\u00edch h\u1ee3p ch\u0103n th\u1ea3; m\u1eb7t kh\u00e1c \u1edf \u0111\u00e2y ng\u01b0\u1eddi d\u00e2n c\u00f3 nhu c\u1ea7u v\u1ec1 s\u1ee9c k\u00e9o l\u1edbn.<\/p>\n – T\u00e2y Nguy\u00ean c\u00f3 kh\u00ed h\u1eadu kh\u00f4 h\u1ea1n, n\u00f3ng th\u00edch h\u1ee3p v\u1edbi \u0111i\u1ec1u ki\u1ec7n sinh th\u00e1i c\u1ee7a b\u00f2.<\/p>\n","protected":false},"excerpt":{"rendered":" B\u00e0i 1 trang 68 T\u1eadp b\u1ea3n \u0111\u1ed3 \u0110\u1ecba L\u00ed 12:T\u1eeb s\u1ed1 li\u1ec7u \u1edf b\u1ea3ng 38.1 trong SGK \u0110\u1ecba l\u00ed 12, h\u00e3y v\u1ebd bi\u1ec3u \u0111\u1ed3 th\u00edch h\u1ee3p th\u1ec3 hi\u1ec7n di\u1ec7n t\u00edch c\u00e2y c\u00f4ng nghi\u1ec7p l\u00e2u n\u0103m ph\u00e2n theo c\u00e1c lo\u1ea1i c\u00e2y c\u1ee7a n\u01b0\u1edbc ta, c\u1ee7a Trung du mi\u1ec1n n\u00fai B\u1eafc B\u1ed9 v\u00e0 T\u00e2y Nguy\u00ean n\u0103m 2005 […]<\/p>\n","protected":false},"author":3,"featured_media":25362,"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\n\n
\n <\/td>\n <\/td>\n 1995<\/td>\n 2008<\/td>\n<\/tr>\n \n \u0110\u00e0n tr\u00e2u:<\/td>\n Trung du v\u00e0 mi\u1ec1n n\u00fai B\u1eafc B\u1ed9<\/td>\n 1.530 (51,6%)<\/td>\n 1.689 (58,3%)<\/td>\n<\/tr>\n \n T\u00e2y Nguy\u00ean<\/td>\n 69 (2,3%)<\/td>\n 87 (3,0%)<\/td>\n<\/tr>\n \n C\u1ea3 n\u01b0\u1edbc<\/td>\n 2.963 (100%)<\/td>\n 2.898 (100%)<\/td>\n<\/tr>\n \n \u0110\u00e0n b\u00f2:<\/td>\n Trung du v\u00e0 mi\u1ec1n n\u00fai B\u1eafc B\u1ed9<\/td>\n 548 (15,1%<\/td>\n 1.086 (17,1%)<\/td>\n<\/tr>\n \n T\u00e2y Nguy\u00ean<\/td>\n 437 (12,0%)<\/td>\n 721 (11,4%)<\/td>\n<\/tr>\n \n C\u1ea3 n\u01b0\u1edbc<\/td>\n 3.639 (100%)<\/td>\n 6.338 (100%)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n