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世界最大生態建設工程 三北防護林工程累計造林超4.5億畝
更新時間:2020-08-19 點擊:591

國家林業和草原局最新統計顯示,截至目前,三北防護林工程造林超4.5億畝,工程區森林覆蓋率由建設之初的5.05%提高到現在的13.57%,累計治理沙化土地33.6萬平方公里,保護和恢復嚴重沙化、鹽堿化的草原、牧場1.5億多畝。工程區年均沙塵暴天數從過去的6.8天,下降到現在的2.4天。累計治理水土流失面積44.7萬平方公里,取得重大生態建設成果。

  據了解,三北防護林工程的全稱是西北華北東北地區防護林體系建設工程,工程區面積406.9萬平方公里,占我國陸地面積的42.4%,涉及我國北方13個省、自治區、直轄市,工程建設期從1978年開始到2050年結束,是世界最大的生態建設工程。


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