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社会越是向前发展,人们对物质和文化的需要也越来越大,一方面需要森林生态系统提供良好的生态环境,另一方面随着生产建设规模的不断扩大,对森林生态系统提供木材的要求也越来越大,产生供需矛盾,导致大规模采伐森林,尤其是在发展中国家就更为严重,全世界的生态学家都在呼吁:拯救森林! 我国是一个少林国家,森林覆盖率仅有12%,“四五”清查时南方集体林区达到“八三二五”(森林覆盖率达到80%,林木蓄积达到300万立方米,林木生长量达到20万立方米,每年提商品材5万立方米)的县共158个,现能达到此标准的县已减少了近60个。全国131个林业企业局,已有23个无资源可采,14个濒临资源枯竭,到本世纪末70%的林业局基本没资
The more society advances, the more people have the material and cultural needs. On the one hand, the forest ecosystem needs to provide a good ecological environment. On the other hand, as the scale of production and construction expands, the supply of wood to forest ecosystems The demand is also getting bigger and bigger, resulting in the contradiction between supply and demand, leading to large-scale deforestation, especially in developing countries is even more serious, ecologists around the world are calling for: save the forest! Our country is a Shaolin country, forest cover The rate of only 12%. In the fourth five-year-plan period, the collective forest area in the south reached 83,251 (the forest coverage rate reached 80%, the forest stock volume reached 3 million cubic meters, and the forest growth volume reached 200,000 cubic meters. A total of 158 counties of 50,000 cubic meters of commercial products, the county has now reached this standard has been reduced by nearly 60. Of the 131 forestry enterprises in the country, 23 have no recoverable resources and 14 are depleted. By the end of this century, 70% of the forestry bureaus basically did not have any capital