基于Weaver-Thomas组合系数法的生态服务价值结构及其在河南省的实证研究

Structure of Ecosystem Services Value Based on Weaver-Thomas Combination Coefficient Method and Its Application in Henan Province

研究生态服务价值结构,可为区域可持续发展提供相应的土地利用对策.本文以河南省2010年土地利用数据和粮食产量等经济数据为基础,利用Weaver-Thomas组合系数法计算了该省126个县(市、区)的生态服务价值结构,并探讨了生态服务价值结构与生态系统服务价值之间的关系.研究发现:(1)Weaver-Thomas组合系数法是研究生态服务价值结构的有效手段.(2)河南省生态服务价值结构简单、生态系统服务价值水平偏低,且西高东低差异明显.(3)单一结构类型生态系统服务价值变化幅度大,多重结构类型变化幅度小.(4)地形因子是引起生态系统服务价值和生态服务价值结构空间分异的重要因素.基于此,在生态系统服务价值较低的平原和盆地地区,适当增加林地、水域等面积,严格控制建设项目占用耕地;在生态系统服务价值较高的山地丘陵地区,加强对林地、草地、水域等生态用地数量和质量的保护.

The study of structure of ecosystem services value can provide land use strategies for regional sustainable development. Firstly, based on land use data of Henan Province in 2010 and relevant economic data, such as grain yield data, structure of ecosystem services value of each county was calculated using Weaver-Thomas Combination Coe{ficient Method. Secondly, the relationship between ecosystem services value and structure of ecosystem services value was analyzed. The following conclusions are drawn： （1） Weaver-Thomas Combination Coefficient Method is an effective mean to study the structure of ecosystem services value. （2） The structure of ecosystem services value of Henan Province is relatively simple, the ecosystem services value in Henan Province is low, and the differentiation between the east and west of the province is obvious. （3） The ecosystem services value of single structure type varies in wide range while multiple structure type varies in narrow range. （4） Terrain is an important factor that causes the spatial differentiation of ecosystem services value and structure of ecosystem services. So, as for these regions where the ecosystem services value is lower, like the eastern plain region of the province, we should increase the area of forest and water body appropriately, and strictly control the cultivated land occupied for construction land. However, for the hilly area where the ecosystem services value is higher, we should strengthen protection of quantity and quality of forest land, grassland, water body and so on.