广西水源涵养型重点生态功能区生态状况变化

文章利用2010年、2018年生态环境监测与评价项目土地利用类型数据,通过生态功能指数、生态结构指数和生态胁迫指数综合反映重点生态功能区生态状况,分析 2010-2018年广西水源涵养型重点生态功能区的生态状况变化趋势。结果表明,广西水源涵养型重点生态功能区林地覆盖率明显提升,生态状况改善。其中疏林地及其他林地向有林地、灌木林地转变是水源涵养指数提升的主要原因,退耕还林、封山育林等措施对重点生态功能区生态状况改善发挥重要作用。

Ecological status changes of water conservation key ecological function areas in Guangxi

Based on the data of land use types from 2010 and 2018 ecological environment monitoring and evaluation projects.Changes in ecology of the key ecological function zones of Guangxi during the years of 2010-2018 were analyzed,using ecological function index,ecological structure index and ecological stress index as indicators.Results show that the key ecological function zones of the water and soil conservation type all turned better,and forest land coverage increased significantly.And the main reason for the improvement of water conservation index is the transformation from sparse forest land and other forest land to forest land and shrubbery forest land.The measures such as returning farmland to forest and closing the mountain for afforestation play an important role in improving the ecological status of key ecological functional areas.