黑河流域典型生态系统的降雨截留特征——基于高时间分辨率的土壤水分数据（英文）

编号 zgly0001675838

文献类型 期刊论文

文献题名 黑河流域典型生态系统的降雨截留特征——基于高时间分辨率的土壤水分数据（英文）

作者 杨崇曜  黄永梅  李恩贵  李泽卿 

作者单位 StateKeyLaboratoryofEarthSurfaceProcessesandResourceEcology  FacultyofGeographicalScience  BeijingNormalUniversity 

母体文献 Journal of Geographical Sciences 

年卷期 2019年09期

年份 2019 

分类号 S152.7  X171.1 

关键词 rainfallinterception  HeiheRiverBasin  soilmoisture  rainfallutilization 

文摘内容 Rainfall interception is of great significance to the fully utilization of rainfall in water limited areas. Until now, studies on rainfall partitioning process of typical ecosystems in Heihe River Basin, one of the most important inland river basins in China, is still insufficient. In this study, six typical ecosystems were selected, namely alpine meadow, coniferous forest, mountain steppe, desert, cultivated crop, and riparian forest, in Heihe River Basin for investigation of the rainfall interception characteristics and their influencing factors, including rainfall amount, duration, and intensity, based on the gross rainfall and high temporal resolution soil moisture data obtained from 12 automatic observation sites. The results show that the average interception amount and average interception rate of the six ecosystems are significantly different: alpine meadow 6.2 mm and 45.9%, coniferous forest 7.4 mm and 69.1%, mountain steppe 3.5 mm and 37.3%, desert 3.5 mm and 57.2%, cultivated crop 4.5 mm and 69.1%, and riparian forest 2.6 mm and 66.7%, respectively. The rainfall amount, duration, and intensity all had impact on the process of rainfall interception. Among these three factors, the impact of rainfall amount was most significant. The responses of these ecosystems to the rainfall characteristics were also different. Analyzing rainfall interception with high temporal resolution soil moisture data is proved to be a feasible method and need further development in the future.