基于InVEST模型的王快水库流域生态系统服务功能评估及权衡/协同关系  

Evaluation and Trade-off/Synergy Relationship of Ecosystem Services in Wangkuai Reservoir Watershed Based on InVEST Model

作　　者：和思羽 张蕾 HE Si-yu;ZHANG Lei(College of Urban and Rural Construction,Hebei Agricultural University,Baoding 071000,China)

机构地区：[1]河北农业大学城乡建设学院,河北保定071000

出　　处：《水电能源科学》2022年第11期60-63,81,共5页Water Resources and Power

基　　金：河北省自然科学基金项目(E2019204334);河北省省属高等学校基本科研业务费研究项目(KY2021001);河北农业大学引进人才科研专项(YJ201813)。

摘　　要：白洋淀上游和太行山区的王快水库流域兼具生态保护与经济发展的双重功能。采用InVEST模拟分析了王快水库流域2005~2010年的水源供给、生境质量、碳储量及土壤保持四个生态系统服务功能,并进一步探究各生态系统服务功能之间的权衡/协同关系。结果表明,2005~2010年,王快水库流域平均产水深度减少了7.83 mm;每栅格单元平均土壤保持量和碳储量分别增加了39.77、8.87 t;生境质量指数增长了0.113。王快水库流域2005、2010年各土地利用类型面积与对应的生态系统服务值变化趋势一致,草地大面积转出为林地是产水深度减少、土壤保持量增加、碳储存量增加和生境质量指数增加的主要影响因素。土壤保持和碳储存在子流域和整个流域均呈显著正相关,即协同关系。该研究可为优化区域生态格局提供理论支撑。Located in the upper reaches of Baiyangdian and Taihang mountains, Wangkuai Reservoir Basin has both ecological protection and economic development. In this study, InVEST model was used to simulate four ecosystem services in Wangkuai Reservoir Basin from 2005 to 2010, including water supply, habitat quality, carbon storage and soil conservation, and to further explore the tradeoff/synergistic relationship among these ecosystem services. The results show that from 2005 to 2010, the average water depth of the Wangkuai Reservoir Basin decreased by 7.83 mm;The average soil conservation amount and carbon storage per grid cell increased by 39.77 t and 8.87 t, respectively. Habitat quality index increased by 0.113;There was a consistent trend between the land use area and the corresponding ecosystem service values in the Wangkuai Reservoir Basin in 2005 and 2010, and the large-scale conversion of grassland to forest land was the main influencing factor for the decrease of water-producing depth, the increase of soil conservation, the increase of carbon storage and the increase of habitat quality index;There was a significant positive correlation between soil conservation and carbon storage in the sub-catchments and the whole catchment. This study can provide some theoretical support for optimizing regional ecological pattern.

关 键 词：王快水库流域 INVEST 生态系统服务功能 偏相关分析 

分 类 号：TV212.4[水利工程—水文学及水资源]