{"id":18682,"date":"2021-09-21T00:24:01","date_gmt":"2021-09-21T00:24:01","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=18682"},"modified":"2021-09-21T00:24:01","modified_gmt":"2021-09-21T00:24:01","slug":"giant-sequoias-americas-fascination-and-conservation","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/vi\/science\/natural-history\/giant-sequoias-americas-fascination-and-conservation\/","title":{"rendered":"C\u00e2y sequoia kh\u1ed5ng l\u1ed3: M\u1ed9t c\u00e2u chuy\u1ec7n v\u1ec1 s\u1ef1 say m\u00ea v\u00e0 b\u1ea3o t\u1ed3n c\u1ee7a n\u01b0\u1edbc M\u1ef9"},"content":{"rendered":"<h2 class=\"wp-block-heading\">C\u00e2y sequoia kh\u1ed5ng l\u1ed3: M\u1ed9t c\u00e2u chuy\u1ec7n v\u1ec1 s\u1ef1 say m\u00ea v\u00e0 b\u1ea3o t\u1ed3n c\u1ee7a n\u01b0\u1edbc M\u1ef9<\/h2>\n\n<h2 class=\"wp-block-heading\">Kh\u00e1m ph\u00e1 v\u00e0 \u201cC\u01a1n s\u1ed1t c\u00e2y l\u1edbn\u201d<\/h2>\n\n<p>V\u00e0o gi\u1eefa nh\u1eefng n\u0103m 1800, m\u1ed9t ng\u01b0\u1eddi th\u1ee3 s\u0103n t\u00ean l\u00e0 Augustus T. Dowd t\u00ecnh c\u1edd b\u1eaft g\u1eb7p m\u1ed9t c\u00e2y kh\u1ed5ng l\u1ed3 tr\u00ean nh\u1eefng ng\u1ecdn n\u00fai mi\u1ec1n \u0111\u00f4ng California. Chi\u1ec1u cao ng\u1ea5t tr\u1eddi, \u0111\u01b0\u1eddng k\u00ednh \u0111\u1ed3 s\u1ed9 v\u00e0 t\u00e1n l\u00e1 r\u1ef1c r\u1ee1 c\u1ee7a n\u00f3 \u0111\u00e3 m\u00ea ho\u1eb7c \u00f4ng. Tin t\u1ee9c v\u1ec1 kh\u00e1m ph\u00e1 c\u1ee7a \u00f4ng lan truy\u1ec1n nhanh nh\u01b0 ch\u00e1y r\u1eebng, th\u1ed5i b\u00f9ng l\u00ean s\u1ef1 \u00e1m \u1ea3nh c\u1ee7a c\u1ea3 qu\u1ed1c gia \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 &#8220;C\u01a1n s\u1ed1t c\u00e2y l\u1edbn&#8221;.<\/p>\n\n<h2 class=\"wp-block-heading\">Bi\u1ec3u t\u01b0\u1ee3ng cho s\u1ef1 h\u00f9ng v\u0129 c\u1ee7a n\u01b0\u1edbc M\u1ef9<\/h2>\n\n<p>C\u00e2y sequoia kh\u1ed5ng l\u1ed3, c\u00f3 th\u1ec3 s\u1ed1ng \u0111\u1ebfn h\u01a1n 3.000 n\u0103m v\u00e0 ph\u00e1t tri\u1ec3n \u0111\u1ebfn k\u00edch th\u01b0\u1edbc kh\u1ed5ng l\u1ed3, \u0111\u00e3 tr\u1edf th\u00e0nh bi\u1ec3u t\u01b0\u1ee3ng cho s\u1ef1 h\u00f9ng v\u0129 v\u00e0 ti\u1ec1m n\u0103ng v\u00f4 h\u1ea1n c\u1ee7a n\u01b0\u1edbc M\u1ef9. Ch\u00fang \u0111\u01b0\u1ee3c coi l\u00e0 nh\u1eefng t\u01b0\u1ee3ng \u0111\u00e0i s\u1ed1ng cho di s\u1ea3n thi\u00ean nhi\u00ean c\u1ee7a qu\u1ed1c gia v\u00e0 b\u1eb1ng ch\u1ee9ng v\u1ec1 v\u00f9ng \u0111\u1ea5t hoang d\u00e3 b\u1ea5t khu\u1ea5t c\u1ee7a qu\u1ed1c gia.<\/p>\n\n<h2 class=\"wp-block-heading\">\u201cQu\u00e1i v\u1eadt th\u1ef1c v\u1eadt\u201d<\/h2>\n\n<p>C\u00e2y sequoia kh\u1ed5ng l\u1ed3 \u0111\u1ea7u ti\u00ean \u0111\u01b0\u1ee3c Dowd ph\u00e1t hi\u1ec7n \u0111\u00e3 \u0111\u01b0\u1ee3c c\u00e1c t\u1edd b\u00e1o \u0111\u1eb7t t\u00ean l\u00e0 &#8220;Qu\u00e1i v\u1eadt th\u1ef1c v\u1eadt&#8221;. K\u00edch th\u01b0\u1edbc kh\u1ed5ng l\u1ed3 v\u00e0 v\u1ebb ngo\u00e0i k\u1ef3 l\u1ea1 c\u1ee7a n\u00f3 khi\u1ebfn c\u1ea3 c\u00e1c nh\u00e0 khoa h\u1ecdc v\u00e0 c\u00f4ng ch\u00fang \u0111\u1ec1u b\u1ed1i r\u1ed1i. Nhi\u1ec1u ph\u1ecfng \u0111o\u00e1n v\u1ec1 tu\u1ed5i c\u1ee7a n\u00f3 \u0111\u00e3 xu\u1ea5t hi\u1ec7n, v\u1edbi c\u00e1c \u01b0\u1edbc t\u00ednh dao \u0111\u1ed9ng trong kho\u1ea3ng t\u1eeb 2.500 \u0111\u1ebfn 6.500 n\u0103m.<\/p>\n\n<h2 class=\"wp-block-heading\">B\u1ea3o t\u1ed3n v\u00e0 c\u00f4ng vi\u00ean qu\u1ed1c gia<\/h2>\n\n<p>Khi s\u1ef1 ph\u1ed5 bi\u1ebfn c\u1ee7a c\u00e2y sequoia kh\u1ed5ng l\u1ed3 ng\u00e0y c\u00e0ng t\u0103ng, c\u00e1c m\u1ed1i lo ng\u1ea1i v\u1ec1 vi\u1ec7c b\u1ea3o v\u1ec7 ch\u00fang c\u0169ng xu\u1ea5t hi\u1ec7n. Nh\u1eefng ng\u01b0\u1eddi \u0111\u1ed1n g\u1ed7 b\u1eaft \u0111\u1ea7u \u0111\u1ed1n h\u1ea1 nh\u1eefng c\u00e2y h\u00f9ng v\u0129 n\u00e0y \u0111\u1ec3 l\u1ea5y g\u1ed7 qu\u00fd c\u1ee7a ch\u00fang, \u0111e d\u1ecda \u0111\u1ebfn s\u1ef1 t\u1ed3n t\u1ea1i c\u1ee7a ch\u00fang. \u0110\u1ec3 \u0111\u1ed1i ph\u00f3 v\u1edbi t\u00ecnh tr\u1ea1ng n\u00e0y, nh\u1eefng ng\u01b0\u1eddi b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng v\u00e0 nh\u00e0 t\u1ef1 nhi\u00ean h\u1ecdc, bao g\u1ed3m John Muir, \u0111\u00e3 l\u00ean ti\u1ebfng \u1ee7ng h\u1ed9 vi\u1ec7c b\u1ea3o v\u1ec7 ch\u00fang. Hai trong s\u1ed1 ba c\u00f4ng vi\u00ean qu\u1ed1c gia \u0111\u1ea7u ti\u00ean \u1edf Hoa K\u1ef3 \u0111\u01b0\u1ee3c th\u00e0nh l\u1eadp \u0111\u1ec3 b\u1ea3o v\u1ec7 nh\u1eefng c\u00e1nh r\u1eebng sequoia kh\u1ed5ng l\u1ed3.<\/p>\n\n<h2 class=\"wp-block-heading\">H\u1eadu qu\u1ea3 kh\u00f4ng mong mu\u1ed1n c\u1ee7a b\u1ea3o t\u1ed3n<\/h2>\n\n<p>Tuy nhi\u00ean, nh\u1eefng n\u1ed7 l\u1ef1c b\u1ea3o t\u1ed3n \u0111\u1ea7u ti\u00ean l\u1ea1i c\u00f3 h\u1eadu qu\u1ea3 kh\u00f4ng mong mu\u1ed1n. Ho\u1ea1t \u0111\u1ed9ng d\u1eadp l\u1eeda nh\u1eb1m b\u1ea3o v\u1ec7 c\u00e2y sequoia kh\u1ecfi thi\u1ec7t h\u1ea1i \u0111\u00e3 d\u1eabn \u0111\u1ebfn t\u00edch t\u1ee5 th\u1ea3m th\u1ef1c v\u1eadt trong c\u00e1c c\u00e1nh r\u1eebng. \u0110i\u1ec1u n\u00e0y l\u00e0m cho ch\u00fang d\u1ec5 b\u1ecb c\u00e1c v\u1ee5 ch\u00e1y r\u1eebng th\u1ea3m kh\u1ed1c h\u01a1n, c\u00f3 th\u1ec3 thi\u00eau r\u1ee5i to\u00e0n b\u1ed9 c\u00e1nh r\u1eebng.<\/p>\n\n<h2 class=\"wp-block-heading\">Bi\u1ebfn \u0111\u1ed5i kh\u00ed h\u1eadu v\u00e0 h\u1ea1n h\u00e1n<\/h2>\n\n<p>Trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y, bi\u1ebfn \u0111\u1ed5i kh\u00ed h\u1eadu \u0111\u00e3 n\u1ed5i l\u00ean nh\u01b0 m\u1ed9t m\u1ed1i \u0111e d\u1ecda \u0111\u00e1ng k\u1ec3 \u0111\u1ed1i v\u1edbi c\u00e2y sequoia kh\u1ed5ng l\u1ed3. H\u1ea1n h\u00e1n k\u00e9o d\u00e0i \u0111\u00e3 khi\u1ebfn nhi\u1ec1u c\u00e2y sequoia r\u1ee5ng l\u00e1, \u0111\u00e2y l\u00e0 d\u1ea5u hi\u1ec7u c\u1ee7a t\u00ecnh tr\u1ea1ng thi\u1ebfu n\u01b0\u1edbc. C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u lo ng\u1ea1i r\u1eb1ng qu\u1ea7n th\u1ec3 c\u00e2y n\u00e0y c\u00f3 th\u1ec3 g\u1eb7p nguy hi\u1ec3m n\u1ebfu t\u00ecnh tr\u1ea1ng h\u1ea1n h\u00e1n v\u1eabn ti\u1ebfp di\u1ec5n.<\/p>\n\n<h2 class=\"wp-block-heading\">Du l\u1ecbch v\u00e0 ph\u1ee5c h\u1ed3i<\/h2>\n\n<p>Nh\u1eefng c\u00e1nh r\u1eebng sequoia kh\u1ed5ng l\u1ed3 l\u00e0 nh\u1eefng \u0111i\u1ec3m \u0111\u1ebfn du l\u1ecbch n\u1ed5i ti\u1ebfng, thu h\u00fat h\u00e0ng tri\u1ec7u du kh\u00e1ch m\u1ed7i n\u0103m. Tuy nhi\u00ean, d\u00f2ng kh\u00e1ch du l\u1ecbch c\u00f3 th\u1ec3 g\u00e2y h\u1ea1i cho h\u1ec7 sinh th\u00e1i m\u1ecfng manh c\u1ee7a c\u00e1c c\u00e1nh r\u1eebng. \u0110\u1ec3 gi\u1ea3m thi\u1ec3u t\u00e1c \u0111\u1ed9ng n\u00e0y, m\u1ed9t s\u1ed1 c\u00e1nh r\u1eebng \u0111\u00e3 b\u1ecb \u0111\u00f3ng c\u1eeda \u0111\u1ec3 ph\u1ee5c h\u1ed3i, cho ph\u00e9p m\u00f4i tr\u01b0\u1eddng s\u1ed1ng \u0111\u01b0\u1ee3c t\u00e1i t\u1ea1o.<\/p>\n\n<h2 class=\"wp-block-heading\">T\u01b0\u01a1ng lai c\u1ee7a nh\u1eefng ng\u01b0\u1eddi kh\u1ed5ng l\u1ed3<\/h2>\n\n<p>T\u01b0\u01a1ng lai c\u1ee7a c\u00e2y sequoia kh\u1ed5ng l\u1ed3 v\u1eabn c\u00f2n ch\u01b0a ch\u1eafc ch\u1eafn. Bi\u1ebfn \u0111\u1ed5i kh\u00ed h\u1eadu, h\u1ea1n h\u00e1n v\u00e0 c\u00e1c m\u1ed1i \u0111e d\u1ecda kh\u00e1c ti\u1ebfp t\u1ee5c \u0111\u1eb7t ra nh\u1eefng th\u00e1ch th\u1ee9c \u0111\u1ed1i v\u1edbi s\u1ef1 t\u1ed3n t\u1ea1i c\u1ee7a ch\u00fang. Tuy nhi\u00ean, nh\u1eefng n\u1ed7 l\u1ef1c b\u1ea3o t\u1ed3n \u0111ang di\u1ec5n ra, bao g\u1ed3m qu\u1ea3n l\u00fd h\u1ecfa ho\u1ea1n v\u00e0 ph\u1ee5c h\u1ed3i m\u00f4i tr\u01b0\u1eddng s\u1ed1ng, mang l\u1ea1i hy v\u1ecdng cho vi\u1ec7c b\u1ea3o v\u1ec7 nh\u1eefng c\u00e2y bi\u1ec3u t\u01b0\u1ee3ng n\u00e0y.<\/p>\n\n<h2 class=\"wp-block-heading\">C\u00e1c lo\u1ea1i c\u00e2y sequoia kh\u1ed5ng l\u1ed3 kh\u00e1c nhau<\/h2>\n\n<p>C\u00f3 hai lo\u00e0i c\u00e2y sequoia kh\u1ed5ng l\u1ed3 ri\u00eang bi\u1ec7t:<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>C\u00e2y sequoia kh\u1ed5ng l\u1ed3 Sierra Nevada:<\/strong> C\u00f3 ngu\u1ed3n g\u1ed1c t\u1eeb d\u00e3y n\u00fai Sierra Nevada \u1edf California.<\/li>\n<li><strong>C\u00e2y g\u1ed7 \u0111\u1ecf ven bi\u1ec3n:<\/strong> C\u00f3 ngu\u1ed3n g\u1ed1c t\u1eeb d\u1ecdc theo b\u1edd bi\u1ec3n Th\u00e1i B\u00ecnh D\u01b0\u01a1ng c\u1ee7a California v\u00e0 mi\u1ec1n nam Oregon.<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\">C\u00e1c \u0111\u1ecba \u0111i\u1ec3m kh\u00e1c nhau c\u1ee7a c\u00e2y sequoia kh\u1ed5ng l\u1ed3<\/h2>\n\n<p>C\u00e2y sequoia kh\u1ed5ng l\u1ed3 ch\u1ec9 \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y \u1edf m\u1ed9t s\u1ed1 c\u00e1nh r\u1eebng bi\u1ec7t l\u1eadp \u1edf \u0111\u1ed9 cao trung b\u00ecnh c\u1ee7a d\u00e3y n\u00fai Sierra Nevada. Nh\u1eefng c\u00e1nh r\u1eebng l\u1edbn nh\u1ea5t n\u1eb1m \u1edf:<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>C\u00f4ng vi\u00ean qu\u1ed1c gia Sequoia<\/strong><\/li>\n<li><strong>C\u00f4ng vi\u00ean qu\u1ed1c gia Kings Canyon<\/strong><\/li>\n<li><strong>C\u00f4ng vi\u00ean qu\u1ed1c gia Yosemite<\/strong><\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\">C\u00e1c c\u00f4ng d\u1ee5ng kh\u00e1c nhau c\u1ee7a g\u1ed7 c\u00e2y sequoia kh\u1ed5ng l\u1ed3<\/h2>\n\n<p>G\u1ed7 c\u00e2y sequoia kh\u1ed5ng l\u1ed3 \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 cao nh\u1edd \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u1ee5c n\u00e1t. N\u00f3 \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho nhi\u1ec1u m\u1ee5c \u0111\u00edch kh\u00e1c nhau, bao g\u1ed3m:<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>V\u1eadt li\u1ec7u x\u00e2y d\u1ef1ng<\/strong><\/li>\n<li><strong>\u0110\u1ed3 n\u1ed9i th\u1ea5t<\/strong><\/li>\n<li><strong>Nh\u1ea1c c\u1ee5<\/strong><\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\">C\u00e1c m\u1ed1i \u0111e d\u1ecda kh\u00e1c nhau \u0111\u1ed1i v\u1edbi c\u00e2y sequoia kh\u1ed5ng l\u1ed3<\/h2>\n\n<p>C\u00e2y sequoia kh\u1ed5ng l\u1ed3 ph\u1ea3i \u0111\u1ed1i m\u1eb7t v\u1edbi nhi\u1ec1u m\u1ed1i \u0111e d\u1ecda, bao g\u1ed3m:<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>Khai th\u00e1c g\u1ed7<\/strong><\/li>\n<li><strong>H\u1ecfa ho\u1ea1n<\/strong><\/li>\n<li><strong>Bi\u1ebfn \u0111\u1ed5i kh\u00ed h\u1eadu<\/strong><\/li>\n<li><strong>H\u1ea1n h\u00e1n<\/strong><\/li>\n<li><strong>Du l\u1ecbch<\/strong><\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\">C\u00e1c c\u00e1ch kh\u00e1c nhau \u0111\u1ec3 b\u1ea3o v\u1ec7 c\u00e2y sequoia kh\u1ed5ng l\u1ed3<\/h2>\n\n<p>C\u00f3 nhi\u1ec1u c\u00e1ch \u0111\u1ec3 b\u1ea3o v\u1ec7 c\u00e2y sequoia kh\u1ed5ng l\u1ed3, bao g\u1ed3m:<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>B\u1ea3o t\u1ed3n<\/strong><\/li>\n<li><strong>Qu\u1ea3n l\u00fd h\u1ecfa ho\u1ea1n<\/strong><\/li>\n<li><strong>Ph\u1ee5c h\u1ed3i m\u00f4i tr\u01b0\u1eddng s\u1ed1ng<\/strong><\/li>\n<li><strong>Gi\u00e1o d\u1ee5c<\/strong><\/li>\n<li><strong>Qu\u1ea3n l\u00fd du l\u1ecbch<\/strong><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>C\u00e2y sequoia kh\u1ed5ng l\u1ed3: M\u1ed9t c\u00e2u chuy\u1ec7n v\u1ec1 s\u1ef1 say m\u00ea v\u00e0 b\u1ea3o t\u1ed3n c\u1ee7a n\u01b0\u1edbc M\u1ef9 Kh\u00e1m ph\u00e1 v\u00e0 \u201cC\u01a1n s\u1ed1t c\u00e2y l\u1edbn\u201d V\u00e0o gi\u1eefa nh\u1eefng n\u0103m 1800, m\u1ed9t&hellip;<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[244],"tags":[401,24379,27,252,193],"class_list":["post-18682","post","type-post","status-publish","format-standard","hentry","category-natural-history","tag-conservation","tag-giant-sequoias","tag-history","tag-nature","tag-symbolism"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/18682","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/comments?post=18682"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/18682\/revisions"}],"predecessor-version":[{"id":18683,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/18682\/revisions\/18683"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/media?parent=18682"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/categories?post=18682"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/tags?post=18682"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}