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四川退耕还林18年:山绿了生态好了 农户腰包鼓了

2017-08-08 08:39:32   

□记者 王成栋

大规模绿化全川森林面积和蓄积量双增

本次监测,由省林业厅牵头,省林业科学研究院、省林业规划院等科研院校和单位参与。

“数据是一点一点统计出来的。”省林业厅天保中心主任黎治富透露,自2007年以来,我省坚持每年开展四川林业资源及效益的系统化监测与评价,并将相关成果向社会发布。他认为,开展林业资源及效益监测,有助于及时掌握林业生产现状和资源消长变化动态。

所有的数据中,林业主管部门和专家最在意的,是森林面积和森林蓄积量。

“生态好不好,森林会说话。”省林业厅资源处相关负责人介绍,森林面积表示的是造林行动的效果,蓄积量则表示固碳等生态效益。

去年,借助大规模绿化全川的实施,全省森林面积、森林蓄积量分别增加41.96万公顷和1970万立方米,达到1792.75万公顷和17.53亿立方米。

“这两个数据顺序为什么这么排?因为先有资源,然后才能有效益。”省林科院生态所专家表示,森林具有保持水土、涵养水源、固碳释氧的功能,这也是核算林业生态价值的参照系。

监测还显示,去年,四川的森林累计减少土壤流失1.38亿吨,涵养水源731.8亿立方米,“相当于731座大型水库。”省林勘院相关负责人表示,去年森林在防洪减灾等方面的作用更不可小觑。

让更多人造林护林培育壮大涉林产业

根据规划,到2020年,全省森林覆盖率将达到40%、国土绿化覆盖率达到70%,届时全省林业生态服务价值突破1.8万亿元。这意味着,未来4年,全省每年营造林面积要大于1.25个卧龙国家级自然保护区。

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