基于RUSLE模型的珊溪水库流域土壤侵蚀定量估算

doi:10.13292/j.1000-4890.20150612.009

科研成果详情

题名	基于RUSLE模型的珊溪水库流域土壤侵蚀定量估算
其他题名	Quantitative estimation of soil erosion in Shanxi Reservoir basin based on RUSLE
作者	任坤1; 梅琨1; 朱慧敏1; 何溶1; 朱元励1; 陆萍1; 张明华1,2
发表日期	2015
发表期刊	生态学杂志影响因子和分区
语种	中文
原始文献类型	学术期刊
关键词	土壤侵蚀评估修正通用土壤流失方程滑坡 GIS RS
其他关键词	soil erosion assessment ; revised universal soil loss equation ; landslide ; GIS ; RS
摘要	土壤侵蚀是当今世界面临的主要问题之一,其中水库流域的土壤侵蚀将会直接影响水库库容和水环境安全。本文以温州珊溪水库流域为研究区域,基于美国农业部开发的修正通用土壤流失方程(RUSLE),并结合地理信息系统(GIS)和遥感技术,评估研究区流域土壤侵蚀现状,并借助GIS空间叠加分析功能,定量分析流域土地利用类型、坡度与土壤侵蚀强度之间的关系。结果表明:该流域年均土壤侵蚀模数为3085.76 t·km-2·a-1,属于中度侵蚀;在土壤侵蚀强度上,微度侵蚀区域面积占流域面积的49.42%,极强度侵蚀和剧烈侵蚀区域面积占流域面积的10.93%。在土壤侵蚀量上,微度侵蚀区域侵蚀量仅占流域侵蚀总量的0.8%,极强度侵蚀和剧烈侵蚀区域侵蚀量占流域侵蚀总量的62.15%;林地面积最大,占流域面积70.21%,且林地的土壤侵蚀量占流域侵蚀量的70.92%,是研究区土壤侵蚀量的主要来源;将研究区划分为7个坡度带,其中[15!,25!)和[25!,35!)坡度带侵蚀面积和侵蚀量达55.12%和61.35%;研究还发现,土壤侵蚀强度与滑坡的发生存在一定的相关性,土壤侵蚀强度大的地方发生滑坡的可能性越大。因此,针对该研究区侵蚀强度较大的小面积区域,加强水土保持力度能有效改善整个研究区域的土壤侵蚀现状。
其他摘要	Soil erosion is one of the major problems facing the world today, and soil erosion in reservoirs is a serious problem reducing water storage volume and water quality. This paper took Shanxi Reservoir basin as the study area to evaluate the effects of the soil erosion on the reservoir water holding capacity and water quality. The Revised Universal Soil Loss Equation (RUSLE) model and GIS and RS technologies were used in the study. Through the ArcGIS spatial overlay analysis, we quantitatively analyzed the relationship between land-use types, slope, and soil erosion. The results showed that soil erosion in Shanxi Reservoir basin was moderate with an average erosion modulus at 3085.76 t ? km~(-2) ? a~(-1). In terms of erosion intensity, mild erosion occupied 49.42% of the area while the extremely severe and severe erosion occupied 10.93% of the area. In terms of erosion quantity, only 0.8% of total soil erosion amount came from the mild erosion area and 62.15% from the extremely severe and severe erosion areas. Also 70.21% of watershed area was covered by the forest, which became the main source of soil erosion accounting for 70.92% of total soil erosion amount. The study area was divided into seven slope belts. Soil erosion was most serious at the [ 15°, 25°) and [25°, 35°) slope belts, which occupied 55.12% of the study area and 61.35% of total soil erosion, respectively. A significant correlation between the soil erosion and the landslide events was found. The greater the intensity of soil erosion, the more likely the landslide happened. Therefore, strengthening soil and water conservation efforts in the severe erosion area could effectively improve the situation of soil erosion in the whole area.
资助项目	浙江省科技厅重大科研专项（2008C03009）资助
ISSN	1000-4890
卷号	34 期号:07 页码:1950-1958
DOI	10.13292/j.1000-4890.20150612.009
页数	9
收录类别	CNKI ; 万方 ; 北大核心 ; PKU ; CSCD ; ISTIC
学科领域	农业基础科学
URL	查看原文
CSCD记录号	CSCD:5469680
引用统计
文献类型	期刊论文
条目标识符	https://kms.wmu.edu.cn/handle/3ETUA0LF/49227
专题	公共卫生与管理学院_水环境应用技术研究所
作者单位	1.温州医科大学水环境应用技术研究所; 2.美国加州大学戴维斯分校土气与水资源系
第一作者单位	温州医科大学
第一作者的第一单位	温州医科大学
推荐引用方式 GB/T 7714	任坤,梅琨,朱慧敏,等. 基于RUSLE模型的珊溪水库流域土壤侵蚀定量估算[J]. 生态学杂志,2015,34(07):1950-1958.
APA	任坤., 梅琨., 朱慧敏., 何溶., 朱元励., ... & 张明华. (2015). 基于RUSLE模型的珊溪水库流域土壤侵蚀定量估算. 生态学杂志, 34(07), 1950-1958.
MLA	任坤,et al."基于RUSLE模型的珊溪水库流域土壤侵蚀定量估算".生态学杂志 34.07(2015):1950-1958.

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