[1]穆天龙,谢婧,吴健生,等.深圳市土地利用对土壤侵蚀的影响研究[J].水土保持研究,2010,17(03):53-58.
　MU Tian-long,XIE Jing,WU Jian-sheng,et al.Effects of Land Use on Soil Erosion in Shenzhen, China[J].Research of Soil and Water Conservation,2010,17(03):53-58.
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深圳市土地利用对土壤侵蚀的影响研究

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 17 期数: 2010年03期 页码: 53-58 栏目: 出版日期: 2010-06-20
Title:
Effects of Land Use on Soil Erosion in Shenzhen, China
作者:
穆天龙1, 谢婧1,2, 吴健生1, 王秀茹2, 郑茂坤3
1. 北京大学 深圳研究生院, 城市人居环境科学与技术重点实验室, 广东 深圳 518055;
2. 北京林业大学 水土保持学院, 北京 100083;
3. 北京大学 城市与环境学院, 北京 100871
Author(s):
MU Tian-long1, XIE Jing1,2, WU Jian-sheng1, WANG Xiu-ru2, ZHENG Mao-kun3
1. The Key Laboratory for Environmental and Urban Sciences, Shenzhen Graudate School, Peking University, Shenzhen, Guangdong 518055, China;
2. Water and Soil Conservation School, Beijing Forestry University, Beijing 100083, China;
3. School of Urban and Environmental Sciences, Peking University, Beijing 100871, China
关键词:
土地利用; 土壤侵蚀; RUSLE; 土壤侵蚀强度综合指数
Keywords:
land use; soil erosion; RUSLE; composite index of soil erosion intensity
分类号:
S157.1;F301.24
摘要:
运用修正通用土壤流失方程（RUSLE）对深圳市土壤侵蚀进行定量计算，并依据城市水土流失标准进行分级，应用并修正土壤侵蚀强度综合指数和区域土壤侵蚀强度综合指数，对深圳市全市及下辖各区的土地利用和土壤侵蚀关系进行比较分析。结果表明：深圳市较少侵蚀等级以上土壤侵蚀面积为81.588 km2；全市平均土壤侵蚀模数为3 570.676 t/（hm2·a），土壤侵蚀模数最大值为447 621.594 t/（hm2·a）；以土地利用类型划分，最易引起侵蚀的三种土地利用类型是采矿地、未利用地以及工地和推平未建地，最不易引起土壤侵蚀的三种土地利用类型是林地、草地和水田，最易引起土壤侵蚀并造成最大影响的用地类型是果园；而从区域分异来看，南山区和龙岗区发生土壤侵蚀的可能性较大，应及早预防。
Abstract:
This paper calculates soil erosion in Shenzhen based on GIS and RUSLE, classifies it in accordance with standards of urban soil erosion, introduces and amends the composite indexes of soil erosion intensity and regional soil erosion intensity in order to analyze the spatial relationships between land use and soil erosion. Several data, including land use distribution, the rainfall records, soil type distribution, the landforms, are used in this paper. The land use types can be classified into 10 types: paddy field, cultivated lands, orchard, bush, forest, grassland, construction site, mining field, unused land and urban area on the basis of common classification standards. In this paper, 30×30 meters is chosen as the basic pixel size. RUSLE consists of six factors-rainfall-runoff erosivity factor, soil erodibility factor, slope length factor, slope steepness, cover-management factor and support practice factor. These six factors give the total soil loss, which comes to 1 733.23 t/(hm2·a) on average. The composite indexes of soil erosion intensity and regional soil erosion intensity are employed to discuss how much land use affects soil erosion, the degree of which is represented by a series of indexes. The results are as follows: three land use types which are most likely to cause soil erosion are mining, unused land and building sites (razed ground included); three land-use types which are most likely to retain soil are forest, grassland and paddy fields; agricultural land-use type which is most likely to cause significant soil erosion is the orchard; Nanshan District and Longgang District are the key districts in which to improve soil and water conservation.

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备注/Memo

收稿日期:2009-12-24。
基金项目:国家自然科学基金重点基金（40635028）；国家自然科学基金青年项目（40801066）；中国博士后科学基金项目（200801017）
作者简介:穆天龙（1984- ），男，辽宁海城人，在读硕士，研究方向为地理学（城市与区域规划）。E-mail：mutianlong@yahoo.com.cn
通讯作者:吴健生（1965- ），男，湖南娄底人，副教授，研究方向为景观生态学与土地利用。E-mail：wujs@szpku.edu.cn

更新日期/Last Update: 1900-01-01