{"id":8954,"date":"2007-06-22T03:51:29","date_gmt":"2007-06-21T20:51:29","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/2007\/06\/nghien-cuu-bien-phap-xu-ly-truoc-khi-say-go-xe-bach-dan-trang-eucalyptus-camaldulensis-dehnh-de-han-che-nut-dau\/"},"modified":"2013-10-06T09:00:55","modified_gmt":"2013-10-06T02:00:55","slug":"nghien-cuu-bien-phap-xu-ly-truoc-khi-say-go-xe-bach-dan-trang-eucalyptus-camaldulensis-dehnh-de-han-che-nut-dau","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/nghien-cuu-bien-phap-xu-ly-truoc-khi-say-go-xe-bach-dan-trang-eucalyptus-camaldulensis-dehnh-de-han-che-nut-dau\/","title":{"rendered":"Nghi\u00ean c\u1ee9u bi\u1ec7n ph\u00e1p x\u1eed l\u00fd tr\u01b0\u1edbc khi s\u1ea5y g\u1ed7 x\u1ebb B\u1ea1ch \u0111\u00e0n tr\u1eafng (Eucalyptus camaldulensis Dehnh) \u0111\u1ec3 h\u1ea1n ch\u1ebf n\u1ee9t \u0111\u1ea7u"},"content":{"rendered":"<p><strong>Nguy\u1ec5n Xu\u00e2n Hi\u00ean, Nguy\u1ec5n Xu\u00e2n Quy\u1ec1n<\/strong> <\/p>\n<h6>Nguy\u1ec5n Th\u1ecb Minh Xu\u00e2n<\/h6>\n<p> <em>Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t <\/em><em>Nam<\/em> <\/p>\n<p> <strong>T\u00d3M T\u1eaeT<\/strong> <\/p>\n<p> T\u1eeb th\u1ef1c t\u1ebf s\u1ea5y g\u1ed7 v\u00e0 s\u1ea3n xu\u1ea5t v\u00e1n gh\u00e9p thanh t\u1eeb g\u1ed7 B\u1ea1ch \u0111\u00e0n tr\u1eafng cho bi\u1ebft: Nh\u01b0\u1ee3c \u0111i\u1ec3m l\u1edbn nh\u1ea5t c\u1ee7a g\u1ed7 trong qu\u00e1 tr\u00ecnh s\u1ea5y l\u00e0 mo m\u00f3p v\u00e0 n\u1ee9t v\u1ee1 l\u00e0m gi\u1ea3m hi\u1ec7u qu\u1ea3 s\u1eed d\u1ee5ng. Tr\u00ean c\u01a1 s\u1edf x\u00e1c \u0111\u1ecbnh nguy\u00ean nh\u00e2n g\u00e2y n\u1ee9t v\u1ee1 khi s\u1ea5y, s\u1ea5y th\u0103m d\u00f2 m\u1eabu th\u1edbt (50*30*50) mm \u1edf nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u0111\u1ed9 \u1ea9m (T<sup>0<\/sup>, \u03c6%) c\u1ee7a m\u00f4i tr\u01b0\u1eddng s\u1ea5y kh\u00e1c nhau tr\u01b0\u1edbc khi s\u1ea5y ph\u00f4i thanh, x\u00e1c \u0111\u1ecbnh m\u1ee9c \u0111\u1ed9 mo m\u00f3p v\u00e0 n\u1ee9t v\u1ee1 m\u1eabu th\u1edbt theo th\u1eddi gian, t\u1eeb \u0111\u00f3 x\u00e2y d\u1ef1ng bi\u1ec7n ph\u00e1p x\u1eed l\u00fd tr\u01b0\u1edbc s\u1ea5y cho ph\u00f4i thanh \u0111\u1ec3 gi\u1ea3m m\u1ee9c \u0111\u1ed9 n\u1ee9t v\u1ee1 v\u00e0 n\u00e2ng cao hi\u1ec7u qu\u1ea3 s\u1eed d\u1ee5ng g\u1ed7.<strong>T\u1eeb kho\u00e1:<\/strong> X\u1eed l\u00fd tr\u01b0\u1edbc s\u1ea5y, ph\u00f4i thanh g\u1ed7 B\u1ea1ch \u0111\u00e0n tr\u1eafng <\/p>\n<h6>\u0110\u1eb6T V\u1ea4N \u0110\u1ec0<\/h6>\n<p>  B\u1ea1ch \u0111\u00e0n tr\u1eafng (<em>Eucalyptus camaldulensis <\/em>Dehnh)l\u00e0 m\u1ed9t trong s\u1ed1 lo\u00e0i c\u00e2y r\u1eebng tr\u1ed3ng m\u1ecdc nhanh \u0111\u01b0\u1ee3c ch\u00fa \u00fd ph\u00e1t tri\u1ec3n l\u00e0m nguy\u00ean li\u1ec7u ph\u1ee5c v\u1ee5 c\u00f4ng nghi\u1ec7p Ch\u1ebf bi\u1ebfn g\u1ed7. Hi\u1ec7n nay g\u1ed7 B\u1ea1ch \u0111\u00e0n tr\u1eafng \u0111ang \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u t\u1ea1o v\u00e1n gh\u00e9p thanh d\u1ea1ng kh\u00f4ng ph\u1ee7 b\u1ec1 m\u1eb7t <em>(Finger Joint sawntimber)<\/em>. Trong qu\u00e1 tr\u00ecnh ch\u1ebf bi\u1ebfn v\u00e0 s\u1ea3n xu\u1ea5t cho bi\u1ebft: Nh\u01b0\u1ee3c \u0111i\u1ec3m l\u1edbn nh\u1ea5t c\u1ee7a g\u1ed7 B\u1ea1ch \u0111\u00e0n tr\u1eafng l\u00e0 d\u1ec5 b\u1ecb n\u1ee9t v\u1ee1 ngay sau khi ch\u1eb7t h\u1ea1, khic\u01b0a x\u1ebb v\u00e0 trong qu\u00e1 tr\u00ecnh s\u1ea5y. Nh\u01b0\u1ee3c \u0111i\u1ec3m n\u00e0y l\u00e0m gi\u1ea3m hi\u1ec7u qu\u1ea3 s\u1eed d\u1ee5ng g\u1ed7. Ch\u00ednh v\u00ec v\u1eady, vi\u1ec7c nghi\u00ean c\u1ee9u t\u00ecm bi\u1ec7n ph\u00e1p x\u1eed l\u00fd g\u1ed7 tr\u01b0\u1edbc s\u1ea5y nh\u1eb1m gi\u1ea3m thi\u1ec3u khuy\u1ebft t\u1eadt n\u1ee9t v\u1ee1 c\u1ee7a g\u1ed7 sau s\u1ea5y, l\u00e0m t\u0103ng ch\u1ea5t l\u01b0\u1ee3ng g\u1ed7 s\u1ea5y, th\u00e1o g\u1ee1 nh\u1eefng v\u01b0\u1edbng m\u1eafc m\u00e0 th\u1ef1c t\u1ebf \u0111ang g\u1eb7p ph\u1ea3i l\u00e0 v\u1ea5n \u0111\u1ec1c\u1ea7n thi\u1ebft v\u00e0 c\u1ea5p b\u00e1ch. Tr\u00ean c\u01a1 s\u1edf \u0111\u00f3 ch\u00fang t\u00f4i \u0111\u1ec1 xu\u1ea5t \u0111\u1ec1 t\u00e0i: <em>&#8220;Nghi\u00ean c\u1ee9u gi\u1ea3i ph\u00e1p x\u1eed l\u00fd tr\u01b0\u1edbc khi s\u1ea5y g\u1ed7 x\u1ebb B\u1ea1ch \u0111\u00e0n tr\u1eafng Eucalyptus camaldulensis Dehnh\u0111\u1ec3 h\u1ea1nch\u1ebf n\u1ee9t \u0111\u1ea7u&#8221;<\/em>v\u1edbi m\u1ee5c ti\u00eau nghi\u00ean c\u1ee9u l\u00e0<strong>:<\/strong>X\u00e1c \u0111\u1ecbnh m\u1ed1i quan h\u1ec7 gi\u1eefa tr\u1ea1ng th\u00e1i (T<sup>0<\/sup>, \u03c6%) c\u1ee7a m\u00f4i tr\u01b0\u1eddng s\u1ea5y v\u00e0 khuy\u1ebft t\u1eadt n\u1ee9t c\u1ee7a g\u1ed7 x\u1ebb B\u1ea1ch \u0111\u00e0n tr\u1eafng. Tr\u00ean c\u01a1 s\u1edf \u0111\u00f3 \u0111\u1ec1 xu\u1ea5t m\u1ed9t bi\u1ec7n ph\u00e1p k\u1ef9 thu\u1eadt x\u1eed l\u00fd g\u1ed7 x\u1ebb tr\u01b0\u1edbc khi s\u1ea5y \u0111\u1ec3 h\u1ea1n ch\u1ebf nh\u01b0\u1ee3c \u0111i\u1ec3m n\u00e0y. <\/p>\n<p> <a><strong>C\u1eadp nh\u1eadt t\u1ea1i \u0111\u00e2y<\/strong><\/a> <\/p>\n","protected":false},"excerpt":{"rendered":"<p><span style=\"font-weight: normal; font-size: 11pt; font-family: &#39;Times New Roman&#39;\">T\u1eeb th\u1ef1c t\u1ebf s\u1ea5y g\u1ed7 v&agrave; s\u1ea3n xu\u1ea5t v&aacute;n gh&eacute;p thanh t\u1eeb g\u1ed7 B\u1ea1ch \u0111&agrave;n tr\u1eafng cho bi\u1ebft: Nh\u01b0\u1ee3c \u0111i\u1ec3m l\u1edbn nh\u1ea5t c\u1ee7a g\u1ed7 trong qu&aacute; tr&igrave;nh s\u1ea5y l&agrave; mo m&oacute;p v&agrave; n\u1ee9t v\u1ee1 l&agrave;m gi\u1ea3m hi\u1ec7u qu\u1ea3 s\u1eed d\u1ee5ng. Tr&ecirc;n c\u01a1 s\u1edf x&aacute;c \u0111\u1ecbnh nguy&ecirc;n nh&acirc;n g&acirc;y n\u1ee9t v\u1ee1 khi s\u1ea5y, s\u1ea5y th\u0103m d&ograve; m\u1eabu th\u1edbt (50*30*50) mm \u1edf nhi\u1ec7t \u0111\u1ed9 v&agrave; \u0111\u1ed9 \u1ea9m (T<sup>0<\/sup>, <\/span><span style=\"font-weight: normal; font-size: 11pt; font-family: &#39;Times New Roman&#39;\">&phi;<\/span><span style=\"font-weight: normal; font-size: 11pt; font-family: &#39;Times New Roman&#39;\">%) c\u1ee7a m&ocirc;i tr\u01b0\u1eddng s\u1ea5y kh&aacute;c nhau tr\u01b0\u1edbc khi s\u1ea5y ph&ocirc;i thanh, x&aacute;c \u0111\u1ecbnh m\u1ee9c \u0111\u1ed9 mo m&oacute;p v&agrave; n\u1ee9t v\u1ee1 m\u1eabu th\u1edbt theo th\u1eddi gian, t\u1eeb \u0111&oacute; x&acirc;y d\u1ef1ng bi\u1ec7n ph&aacute;p x\u1eed l&yacute; tr\u01b0\u1edbc s\u1ea5y cho ph&ocirc;i thanh \u0111\u1ec3 gi\u1ea3m m\u1ee9c \u0111\u1ed9 n\u1ee9t v\u1ee1 v&agrave; n&acirc;ng cao hi\u1ec7u qu\u1ea3 s\u1eed d\u1ee5ng g\u1ed7.<\/span><span style=\"font-size: 11pt; font-family: &#39;Times New Roman&#39;\"><strong>T\u1eeb kho&aacute;:<\/strong><\/span><span style=\"font-weight: normal; font-size: 11pt; font-family: &#39;Times New Roman&#39;\"> X\u1eed l&yacute; tr\u01b0\u1edbc s\u1ea5y, ph&ocirc;i thanh g\u1ed7 B\u1ea1ch \u0111&agrave;n tr\u1eafng<\/span> <\/p>\n<p>\n&nbsp;<\/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\/8954"}],"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=8954"}],"version-history":[{"count":1,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/8954\/revisions"}],"predecessor-version":[{"id":10410,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/8954\/revisions\/10410"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=8954"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=8954"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=8954"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}