| 斋堂盆地的河谷地貌结构及近万年以来的水土流失概况 |
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| 引用本文： | 刘静,夏正楷. 斋堂盆地的河谷地貌结构及近万年以来的水土流失概况[J]. 水土保持研究, 2005, 12(4): 90-92 |
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| 作者姓名： | 刘静 夏正楷 |
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| 作者单位： | 北京大学环境学院, 北京, 100871 |
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| 基金项目： | 国家教育部博士点基金(编号:20030001100) |
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| 摘 要： | 根据斋堂盆地的河谷地貌结构，估算出10000aB.P.～8500aB.P.的河流年平均侵蚀量为158.0×103t/a，8500aB.P.～4000aB.P.的河流年平均堆积量为3.31×103t/a，4000aB.P.以来的河流年平均侵蚀量为96.3×103t/a。经比较得出，该区近万年以来的水土流失，受自然条件影响大。但随着人类活动作用的加强，人为因素逐渐成为水土流失的主导因素，现今的土地受人为破坏严重。
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| 关 键 词： | 斋堂盆地 河谷地貌 水土流失 |
| 文章编号： | 1005-3409(2005)04-0090-03 |
| 修稿时间： | 2005-04-26 |
Fluvial Geomorphology of Zhaitang Basin and Water and Soil Erosion Since 10 000 a B.P. |
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| LIU Jing,XIA Zheng-kai. Fluvial Geomorphology of Zhaitang Basin and Water and Soil Erosion Since 10 000 a B.P.[J]. Research of Soil and Water Conservation, 2005, 12(4): 90-92 |
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| Authors: | LIU Jing XIA Zheng-kai |
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| Affiliation: | College of Environment Sciences, Peking University, Beijing 100871, China |
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| Abstract: | Fieldworks of fluvial geomorphology of Zhaitang basin provided that fluvial erosion of every year during 10 000 a B. P.～8 500 a B. P. is about 158.0× 103 t/a, and fluvial accumulation of every year during 8 500 a B. P.～4 000 a B. P. is about 3.31× 103 t/a, and fluvial erosion of every year since 4 000 a B. P. is about 96.3× 103 t/a.Comparison of those shows that the main reason of water and soil erosion in this place since 10 000 a B. P. is the nature condition.But with the strengthen of human activity, man-made factors are becoming the main reasons, and the land is seriously destroyed by people. |
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| Keywords: | Zhaitang basin fluvial geomorphology water and soil erosion |
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