摘要
基于InVEST模型对流域产水量进行量化评估,并利用Theil-Sen+Mann-Kendall的时序变化分析和地理探测器探究其时空变化特征以及空间分异驱动影响因素。结果表明:产水量呈“W”型波动变化,高值区集中于流域西北部和南部,低值区主要分布于东部及中部地区;趋势分析显示产水量变化以显著上升为主,面积占比达80%以上。林地和耕地作为流域内面积最大的地类,其产水量之和占流域产水总量的90%以上,是流域内产水量贡献最大的地类;年均降水是引起产水量空间异质性的主导因素,与植被覆盖度和蒸散发的交互作用占主导地位。千岛湖流域作为长江三角洲重要的水源地和生态屏障区,探究其产水量服务对保护水资源安全和实现社会经济高质量发展有着重要意义。
The watershed water yield was quantified based on InVEST model,and Theil-Sen+Mann-Kendall and geographical detector were used to explore the characteristics of spatial differentiation.The results show that the water yield is"W"fluctuation,the high value areas are concentrated in the northwest and south of the basin,and the low value areas are mainly distributed in the east and central regions.Trend analysis shows that the water yield mainly increases significantly,and the area accounts for more than 80%.Forest land and cultivated land,as the largest land in the basin,the combined water yield account for more than 90%of the total,and is the largest water yield in the basin.The average annual precipitation is the dominant factor causing the spatial heterogeneity of water yield,and the interaction with vegetation coverage and evapotranspiration plays the dominant role.As an important water source and ecological barrier area of the Yangtze River Delta,it is of great significance to explore the water production service of Qiandao Lake Basin to protect the safety of water resources and realize the high-quality social and economic development.
作者
孙严超
刘道垒
王伟业
蔡俊
SUN Yanchao;LIU Daolei;WANG Weiye;CAI Jun(College of Economics and Management,Anhui Agricultural University,Hefei 230036,China)
出处
《佳木斯大学学报(自然科学版)》
2024年第12期169-172,共4页
Journal of Jiamusi University:Natural Science Edition
基金
国家社会科学基金项目(71203054)
安徽农业大学2021年安徽乡村振兴战略研究中心项目(校科字〔2021〕10号)。
关键词
新安江流域
产水量
趋势分析
驱动因素
Xin'an River basin
water yield
trend analysis
driving factors
