论文摘要
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.
论文目录
文章来源
类型: 期刊论文
作者: 杨崇曜,黄永梅,李恩贵,李泽卿
来源: Journal of Geographical Sciences 2019年09期
年度: 2019
分类: 基础科学,工程科技Ⅰ辑,农业科技
专业: 环境科学与资源利用,农业基础科学,农艺学
单位: State Key Laboratory of Earth Surface Processes and Resource Ecology, Faculty of Geographical Science,Beijing Normal University
基金: National Natural Science Foundation of China,No.91425301,No.91725000,State Key Laboratory of Land Surface Processes and Resource Ecology,No.2017-ZY-04
分类号: S152.7;X171.1
页码: 1527-1547
总页数: 21
文件大小: 1262K
下载量: 67
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