Nam Phi \u0111\u00e3 tr\u1ed3ng c\u00e2y CNSH \u0111\u1ea7u ti\u00ean v\u00e0o n\u0103m 1998 v\u1edbi b\u00f4ng kh\u00e1ng c\u00f4n tr\u00f9ng; ng\u00f4 kh\u00e1ng s\u00e2u b\u1ec7nh v\u00e0 \u0111\u1eadu t\u01b0\u01a1ng ch\u1ecbu \u0111\u01b0\u1ee3c thu\u1ed1c di\u1ec7t c\u1ecf \u0111\u00e3 \u0111\u01b0\u1ee3c tr\u1ed3ng v\u00e0o n\u0103m 2001, ng\u00f4 ch\u1ecbu \u0111\u01b0\u1ee3c thu\u1ed1c di\u1ec7t c\u1ecf v\u00e0o n\u0103m 2003. N\u0103m 2016, \u0111\u1ea5t tr\u1ed3ng c\u00e2y CNSH l\u00e0 2,66 tri\u1ec7u ha g\u1ed3m ng\u00f4 (2,16 tri\u1ec7u ha), \u0111\u1eadu t\u01b0\u01a1ng (494.000 ha) v\u00e0 b\u00f4ng (9.000 ha), t\u0103ng 20% \u200b\u200bso v\u1edbi di\u1ec7n t\u00edch c\u00e2y tr\u1ed3ng c\u00f4ng ngh\u1ec7 sinh h\u1ecdc \u0111\u01b0\u1ee3c b\u00e1o c\u00e1o l\u00e0 2,29 tri\u1ec7u ha v\u00e0o n\u0103m 2015. Vi\u1ec7c s\u1eed d\u1ee5ng c\u00e2y CNSH trung b\u00ecnh t\u0103ng nh\u1eb9 \u1edf m\u1ee9c 91% v\u00e0o n\u0103m 2016. T\u1ed5ng di\u1ec7n t\u00edch tr\u1ed3ng ng\u00f4, \u0111\u1eadu t\u01b0\u01a1ng v\u00e0 b\u00f4ng l\u00e0 2,93 tri\u1ec7u ha, t\u0103ng 15% t\u1eeb b\u00e1o c\u00e1o cu\u1ed1i n\u0103m 2015. T\u1eeb n\u0103m 1998, 70 s\u1ef1 ki\u1ec7n \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t \u0111\u1ec3 tr\u1ed3ng \u1edf Nam Phi bao g\u1ed3m 5 s\u1ef1 ki\u1ec7n c\u1ea3i d\u1ea7u Argentina, 10 s\u1ef1 ki\u1ec7n b\u00f4ng, 42 s\u1ef1 ki\u1ec7n ng\u00f4, 1 s\u1ef1 ki\u1ec7n l\u00faa g\u1ea1o (\u0111\u1ed1i v\u1edbi th\u1ef1c ph\u1ea9m) v\u00e0 12 s\u1ef1 ki\u1ec7n \u0111\u1eadu t\u01b0\u01a1ng.<\/p>\n
L\u1ee3i \u00edch kinh t\u1ebf: \u01af\u1edbc t\u00ednh l\u1ee3i \u00edch kinh t\u1ebf t\u1eeb c\u00e2y tr\u1ed3ng c\u00f4ng ngh\u1ec7 sinh h\u1ecdc cho Nam Phi trong giai \u0111o\u1ea1n 1998 \u0111\u1ebfn n\u0103m 2015 l\u00e0 kho\u1ea3ng 2,1 t\u1ef7 \u0111\u00f4 la M\u1ef9 v\u00e0 237 tri\u1ec7u \u0111\u00f4 la M\u1ef9 v\u00e0o n\u0103m 2015 (Brookes v\u00e0 Barfoot, 2017, Forthcoming). S\u1ef1 gia t\u0103ng tr\u1ed3ng c\u00e2y c\u00f4ng ngh\u1ec7 sinh h\u1ecdc \u1edf Nam Phi \u0111\u01b0\u1ee3c th\u00fac \u0111\u1ea9y b\u1edfi vi\u1ec7c tr\u1ed3ng ng\u00f4 t\u0103ng do \u0111i\u1ec1u ki\u1ec7n th\u1eddi ti\u1ebft v\u00e0 n\u01b0\u1edbc \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n v\u00e0o cu\u1ed1i n\u0103m 2016. C\u0169ng c\u00f3 s\u1ef1 s\u1ee5t gi\u1ea3m trong tr\u1ed3ng \u0111\u1eadu t\u01b0\u01a1ng do h\u1ea1n h\u00e1n v\u00e0o \u0111\u1ea7u m\u00f9a tr\u1ed3ng , c\u0169ng nh\u01b0 vi\u1ec7c gi\u1ea3m 25% di\u1ec7n t\u00edch b\u00f4ng do gi\u00e1 to\u00e0n c\u1ea7u th\u1ea5p. C\u00f3 nh\u1eefng t\u1ed5n th\u1ea5t ph\u00e1t sinh do hi\u1ec7n t\u01b0\u1ee3ng El Ni\u00f1o v\u1eabn t\u1ed3n t\u1ea1i su\u1ed1t cu\u1ed1i n\u0103m 2015 v\u00e0 \u0111\u1ebfn n\u0103m 2016 v\u00e0 La Ni\u00f1a v\u00e0o cu\u1ed1i th\u00e1ng 11. \u01af\u1edbc t\u00ednh di\u1ec7n t\u00edch c\u00e2y tr\u1ed3ng c\u00f4ng ngh\u1ec7 sinh h\u1ecdc s\u1ebd t\u0103ng trong n\u0103m t\u1edbi v\u00ec l\u01b0\u1ee3ng m\u01b0a v\u00e0o cu\u1ed1i n\u0103m 2016 \u0111\u1ed1i v\u1edbi h\u1ea7u h\u1ebft c\u00e1c v\u1ee5 m\u00f9a, nhu c\u1ea7u ng\u00f4 t\u0103ng l\u00ean v\u00ec th\u1ef1c ph\u1ea9m, th\u1ee9c \u0103n ch\u0103n nu\u00f4i v\u00e0 n\u0103ng su\u1ea5t h\u1ea1t c\u1ea3i d\u1ea7u nghi\u1ec1n t\u0103ng l\u00ean. Thi\u1ebfu n\u01b0\u1edbc c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn Nam Phi c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c gi\u1ea3i quy\u1ebft b\u1edfi ng\u00f4 WEMA (Qu\u1ea3n l\u00fd Ng\u00f4 S\u1eed d\u1ee5ng N\u01b0\u1edbc cho Ch\u00e2u Phi) d\u1ef1 ki\u1ebfn \u200b\u200bs\u1ebd \u0111\u01b0\u1ee3c ph\u00e2n ph\u1ed1i r\u1ed9ng r\u00e3i cho n\u00f4ng d\u00e2n v\u00e0o n\u0103m 2018, c\u0169ng nh\u01b0 \u0111\u1eadu t\u01b0\u01a1ng ch\u1ecbu h\u1ea1n t\u1eeb Argentina. S\u1ef1 suy gi\u1ea3m trong tr\u1ed3ng b\u00f4ng \u0111\u00e3 b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi gi\u00e1 to\u00e0n c\u1ea7u th\u1ea5p, c\u00f3 th\u1ec3 ph\u1ee5c h\u1ed3i tr\u1edf l\u1ea1i khi gi\u00e1 \u1ed5n \u0111\u1ecbnh.<\/p>\n
Ngu\u1ed3n: isaaa.org<\/em><\/p>\n","protected":false},"excerpt":{"rendered":" Nam Phi \u0111\u00e3 tr\u1ed3ng c\u00e2y CNSH \u0111\u1ea7u ti\u00ean v\u00e0o n\u0103m 1998 v\u1edbi b\u00f4ng kh\u00e1ng c\u00f4n tr\u00f9ng; ng\u00f4 kh\u00e1ng s\u00e2u b\u1ec7nh v\u00e0 \u0111\u1eadu t\u01b0\u01a1ng ch\u1ecbu \u0111\u01b0\u1ee3c thu\u1ed1c di\u1ec7t c\u1ecf \u0111\u00e3 \u0111\u01b0\u1ee3c tr\u1ed3ng v\u00e0o n\u0103m 2001, ng\u00f4 ch\u1ecbu \u0111\u01b0\u1ee3c thu\u1ed1c di\u1ec7t c\u1ecf v\u00e0o n\u0103m 2003. N\u0103m 2016, \u0111\u1ea5t tr\u1ed3ng c\u00e2y CNSH l\u00e0 2,66 tri\u1ec7u ha g\u1ed3m ng\u00f4 […]\n","protected":false},"author":1,"featured_media":6493,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[87],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/posts\/6830"}],"collection":[{"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/comments?post=6830"}],"version-history":[{"count":0,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/posts\/6830\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/media\/6493"}],"wp:attachment":[{"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/media?parent=6830"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/categories?post=6830"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/tags?post=6830"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}