| 西藏高原东部横断山区降雨侵蚀力初步研究 |
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| 引用本文： | 辜世贤,王小丹,刘淑珍. 西藏高原东部横断山区降雨侵蚀力初步研究[J]. 水土保持研究, 2011, 18(3): 28-31 |
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| 作者姓名： | 辜世贤 王小丹 刘淑珍 |
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| 作者单位： | 1. 湛江师范学院,广东,湛江,524048
2. 中国科学院,成都山地灾害与环境研究所,山地环境演变与调控重点实验室,成都,610041 |
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| 摘 要： | 降雨侵蚀力是引起水力侵蚀最主要的动力因素,经典算法所必须的降雨过程资料在藏东横断山区难以获得,目前,藏东高山峡谷区的降雨侵蚀力研究很薄弱。本研究采用月平均降雨量和年平均降雨量为基础的不同降雨侵蚀力估算模型,比较分析了不同模型的估算精度。结果表明:基于年雨量的指数函数形式的模型适用于藏东横断山区降雨侵蚀力计算,具有较高精度。研究区年平均降雨量为540.1 mm,模型估算藏东横断山区降雨侵蚀力R值为298.67(MJ.mm)/(hm2.h.a)。
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| 关 键 词： | 降雨侵蚀力 藏东横断山区 估算模型 |
The Preliminary Research on Rainfall Erosivity Based on Simple Estimation Method in the Hengduan Mountainous Region of the Eastern Tibet |
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| GU Shi-xian,WANG Xiao-dan,LIU Shu-zhen. The Preliminary Research on Rainfall Erosivity Based on Simple Estimation Method in the Hengduan Mountainous Region of the Eastern Tibet[J]. Research of Soil and Water Conservation, 2011, 18(3): 28-31 |
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| Authors: | GU Shi-xian WANG Xiao-dan LIU Shu-zhen |
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| Affiliation: | GU Shi-xian1,WANG Xiao-dan2,LIU Shu-zhen2(1.Zhanjiang Normal University,Zhanjiang,Guangdong 524048,China,2.Key Laboratory of MountainEnvironment and Regulation,Institute of Mountain Hazards and Environment,CAS,Chengdu 610041,China) |
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| Abstract: | The rainfall erosivity is the main factor causing the soil and water erosion,but the classical erosivity estimation method needs the data of rainfall processes which are unavailable in most of the test areas.As for the region of Hengduan Mountain in the Eastern Tibet,this paper aimed to estimate the rainfall erosivity by the simple method based on the data of mean monthly precipitation and mean annual precipitation.Through the comparison and analysis of the various simple models and the related research res... |
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| Keywords: | rainfall erosivity region of Hengduan mountainin the Eastern Tibet simple estimation method |
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