摘要
以黔西南州为研究区域,利用2010年土地利用数据,结合年降水量数据,采用降水贮存量法,分析和研究了黔西南州8个县、市不同森林生态系统的水源涵养能力以及空间差异。结果表明:①2010年黔西南州森林生态系统水源涵养总量为1.89×10^(10) m ^(3),单位面积水源涵养总量为1.98×10^(5 )m ^(3);②从空间分布来看,森林生态系统水源涵养量表现为中间高、四周低,南部高、北部低,西部高、东部低;③森林以常绿针叶林涵养水源最多、贡献率最高,针阔混交林则反之;④兴义市与望谟县森林水源涵养量最丰富,贞丰县最少。
Taking Qianxinan Prefecture as the research area,and using 2010 land use data,and annual precipitation data,this paper analyzes and studies the water conservation capacity and spatial differences of different forest ecosystems in eight counties and cities in Qianxinan Prefecture by the precipitation storage method.The results show that:①In 2010,the total amount of water conservation in the forest ecosystem of Qianxinan Prefecture was 1.89×10^(10) m ^(3),and the total amount of water conservation per unit area was 1.98×10^(5) m ^(3);②From the perspective of spatial distribution,the total water conservation of the forest ecosystem is high in the middle and low in the surrounding areas;high in the south and low in the north;and high in the west and low in the east;③The evergreen coniferous forest has the most water conservation and the highest contribution rate,and the coniferous and broad-leaved mixed forest has the least area and less water conservation;④The forest water conservation is the most in Xingyi City and Wangmo County,and the least in Zhenfeng County.
作者
李文芳
余春娅
王霄念
刘弋菱
LI Wenfang;YU Chunya;WANG Xiaonian;LIU Yiling(School of Karst Science,Guizhou Normal University/State Engineering Technology Institute for Karst Desertification Control,Guiyang 550001,China)
出处
《人民珠江》
2021年第11期60-65,共6页
Pearl River
基金
国家“十三五”重点研发计划课题(2016YFC0502607)。
关键词
喀斯特山区
森林生态系统
水源涵养功能
黔西南州
Karst mountain area
forest ecosystem
water conservation function
Qianxinan Prefecture
