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Hydrological Adjusting Functions of Different Landscape Patterns in Typical Catchments in Qilian Mountains
Pages: 701-708
Year: Issue:  5
Journal: JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY

Keyword:  景观结构水文调节能力典型流域祁连山;
Abstract: 在GIS支持下,对祁连山中段典型流域不同景观结构的水文效应进行比较分析.结果表明:以低海拔乔木林占优势的大野口河流域可对其年降水量的36.45%进行调节,雨季径流深是旱季径流深的8.43倍;以较高海拔灌丛占优势的海潮坝河流域可对其年降水量的24.96%进行调节,雨季径流深是旱季径流深的11.8倍.大野口河流域对降水的调控能力强于海潮坝河流域.在降水量不变的情况下,流域森林面积每增加1 km2,流域对降水的综合调节能力将提高0.35 t·100 m-2(即3.5mm).
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