[1]靳晓莉,程根伟,范继辉,等.基于GIS的小流域土壤侵蚀与产沙的简化模拟[J].山地学报,2012,(01):24.
JIN Xiaoli,CHEN Genwei,FAN Jihui,et al.A Simple GIS-Based Modeling of Soil Erosion and Yield in Small Basin[J].Mountain Research,2012,(01):24.
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基于GIS的小流域土壤侵蚀与产沙的简化模拟(
)
《山地学报》[ISSN:1008-2186/CN:51-1516]
- 卷:
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- 期数:
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2012年01期
- 页码:
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24
- 栏目:
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山地学报
- 出版日期:
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2012-01-01
文章信息/Info
- Title:
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A Simple GIS-Based Modeling of Soil Erosion and Yield in Small Basin
- 作者:
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靳晓莉;程根伟;范继辉;麻泽龙;
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1. 中国科学院水利部成都山地灾害与环境研究所，四川 成都 610041；
2. 四川省水利科学研究院，四川 成都 610072
- Author(s):
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JIN Xiaoli; CHEN Genwei; FAN Jihui; MA Zelong
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1. Institute of Mountain Hazards and Environment，CAS，Chengdu 610041，China；
2. Sichuan Hydraulic Science Research Institute，Chengdu 610072，China
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- 关键词:
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泥沙输移能力; 侵蚀强度; USLE公式; 简化模型
- Keywords:
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transport capacity; erosion intensity; USLE equation; simple model
- 分类号:
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S157.1
- 文献标志码:
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A
- 摘要:
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将泥沙输移能力公式与USLE公式相结合,建立了一个简化的分布式小流域产沙模型,并将其应用于川中丘陵区小流域的土壤侵蚀与泥沙输移的空间分布模拟。得到的主要结论:1.该模型适用于川中丘陵区小流域产沙的模拟;2.魏城河流域1980—1987年8 a平均土壤侵蚀量为16.8×104t,侵蚀模数为675.8 t/(km2.a),模拟得到的输沙模数为238.6 t/(km2.a),泥沙输移比为0.35;3.魏城河流域主要以微度侵蚀为主,占到全流域总面积的68%,强度侵蚀占流域面积的1%,主要分布在坡度较陡的流域边缘地带;4.相对其他因子,降雨与坡度对该流域侵蚀产沙的影响更为突出。
- Abstract:
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This paper proposed a simple distributed sediment prediction model by combing the USLE and transport capacity equations，and applied it in hilly area of Sichuan province to model the spatial distribution of soil erosion and transport. The main results are as follows: 1. the model established in this paper is applicable for sediment modeling in hilly area of Sichuan province；2. with the sediment delivery ratio of 0.35，the average annual potential soil erosion is 16.8 thousands t，the erosion modulus is 675.8 t/(km2·a) in Weichenghe basin，and the modeled soil yield modulus is 238.6 t/(km2·a)；3. the Weichenghe basin is dominated by mild erosion which accounts for 68% of whole basin area，and the extremely intensive erosion accounts for less than 1%，and the intensive erosion mainly occurs at the edge of the basin where the slope is very steep； 4. the rainfall and slope effect the soil erosion more than other factors in this study area.
备注/Memo
- 备注/Memo:
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收稿日期(Received date)：2011-11-04；改回日期(Accepted) : 2012-01-06。
基金项目（Foundation item）：本项研究得到国家自然科学基金支持（编号：31070405）。\[National Nature Science Foundation of China (No. 31070405).\]
作者简介（Biography）：靳晓莉（1980-），女（汉），湖北省随州市人，博士后，研究方向：流域水文与土壤侵蚀模拟。\[Jin Xiaoli（1980-），Postdoctoral，research: hydrological and soil erosion simulation.\]Tel: 15881153698，E-mail: yezi1612@hotmail.com
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通讯作者（Author for Correspondence) ： 程根伟， 男（1956-），研究员。研究方向：水文学与水资源，森林生态。\[Cheng Genwei(1956-), male, research professor, mainly engaged in hydrology and forest ecology.\]E-mail: gwcheng@imde.ac.cn
更新日期/Last Update:
1900-01-01