| 国主要江河流域土壤侵蚀量测算 |
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| 引用本文： | 李智广,刘秉正.国主要江河流域土壤侵蚀量测算[J].中国水土保持科学,2006,4(2):1-6. |
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| 作者姓名： | 李智广 刘秉正 |
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| 作者单位： | 水利部水土保持监测中心,100053,北京 |
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| 基金项目： | 本次测算限于笔者水平和收集资料有限,仅是很粗略的一次测算尝试,还有待进一步研究.在此,对文中所引用的资料的作者,谨表衷心谢意. |
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| 摘 要： | 为了对我国土壤侵蚀进行评估,需要测算多年平均侵蚀量。在前人研究的基础上,收集主要江河泥沙测验资料和水土保持研究资料,采用河流泥沙输移比法和水土保持法,测算出我国黄河、长江等9大江河流域多年平均侵蚀量为53.10亿t,并与相关资料进行对比;讨论流域分区的泥沙输移比差异。结果表明:侵蚀总量以长江流域最大,黄河流域次之,淮河、珠江、辽河、松花江流域依次居后,闽江和钱塘江流域最少。
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| 关 键 词： | 江河流域 侵蚀产沙 泥沙输移比 土壤侵蚀量 |
| 收稿时间： | 2005-09-29 |
| 修稿时间： | 2006-02-10 |
Calculation on soil erosion amount of main river basin in China |
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| Li Zhiguang,Liu Bingzheng.Calculation on soil erosion amount of main river basin in China[J].Science of Soil and Water Conservation,2006,4(2):1-6. |
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| Authors: | Li Zhiguang Liu Bingzheng |
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| Institution: | The Mornitoring Center of Soil and Water Conservation, MWR, 100053, Beijing, China |
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| Abstract: | In order to evaluate soil erosion condition in China,the soil erosion amount should to be calculated.Based on the existing research,the sediment investigation and soil erosion controlling data are collected.With methods of sediment delivery ratio(SDR) and soil conservation,the annual average soil erosion amount of Yellow river basin and Yangtze river basin etc.9 large rivers basins are calculated,which is 5.31 billion tons.The results are compared with relative researches,and differences of sediment delivery ratio among basin regionalization are discussed.Which shows that the gross amount of soil erosion of Yangtze river basin is the largest,Yellow river basin are less than Yangtze river basin,then the turn is Huaihe river basin,Pearl river basin,Liaohe river basin,Songhuajiang river basin,the Minjiang river basin and the Qiantang river basin are the least. |
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| Keywords: | river basin erosion and sediment yield sediment delivery ratio(SDR) soil erosion amount |
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