摘要
为了对河北省生态服务价值进行评估,以TM数据和MODIS NDVI数据为数据源,建立生态系统服务价值评估体系、物质量评估模型及价值量评估模型,对河北省2009年生态系统服务价值进行了计算。结果显示:2009年河北省生态系统总服务价值为180.38×106万元;不同的服务种类所占比重由大到小顺序依次为保护土壤肥力价值、释放O2价值、吸收固定CO2价值、积累营养物质价值、固定土壤价值、调节水量价值和净化水质价值;生态系统服务价值呈现出北高南低、山区高平原低等显著的空间分异特征;不同土地利用类型的生态系统服务价值差异显著,林地单位面积所提供的服务价值最高,而农田由于面积广大,总服务价值最高。
In this paper, the ecosystem services valuation system and methods were developed and Landsat TM and MODIS NDVI were used as the main dataset to calculate the ecosystem services value of 2009 in Hebei Province. The total value of ecosystem services of Hebei Province was 180.38 million in 2009. The value of the service that maintained soil fertility accounted for 59.15% of the total value, which was the biggest one of the eight services, followed by the values of released O2, fixed CO2, nutrients accumulation, soil conservation, water volume regulation, organic matter production and water purification. The spatiotemporal pattern of ecosystem services values of Hebei Province in 2009 was remarkable, the values were much higher in northern and northwestern parts and mountain areas than the values in southern and southeastern parts and plain areas. The values of ecosystem services of various kinds of land - use categories were different significantly. Forest land offers the highest ecosystem service value per hectare, and farmland, because of its huge area, offers the highest total value.
出处
《国土资源遥感》
CSCD
北大核心
2013年第4期180-186,共7页
Remote Sensing for Land & Resources
基金
城市土地空间立体化利用管理技术研究(编号:2013BAJ05B04)
