论文部分内容阅读
国际上关于21世纪土地可持续利用的共识是:为了满足人口增长对生产和生活的需求,必须用较少投入获得更多的农林产品,并确保生态环境健康。傅伯杰院士指出:“由于我国必须确保18亿亩耕地红线,再加上建设用地不断增加,生态用地提升空间不大,必须从生态用地数量管理转向生态服务功能管理”。因此,基于生态系统服务、生物多样性保护、景观生态学等理论,分析我国实施耕地占补平衡中存在的生态问题,
International consensus on the sustainable use of land in the 21st century is that in order to meet the growing demand for production and livelihoods, less agricultural and forestry products must be invested and ecological health ensured. Academician Fu Bojie pointed out: “Since our country must ensure that the red line of 1.8 billion mu of arable land, coupled with increasing construction land, there is little room for improvement of ecological land, we must shift from ecological land management to ecological service management.” Therefore, based on the theories of ecosystem services, biodiversity conservation and landscape ecology, this paper analyzes the ecological problems existing in the balance of arable land in our country,