[1]辜世贤,王小丹,刘淑珍.西藏高原东部矮西沟流域土壤可蚀性研究[J].水土保持研究,2011,18(01):77-81.
　GU Shi-xian,WANG Xiao-dan,LIU Shu-zhen.The Preliminary Research on the Model Method of Soil Erodibility in the Aixigou Watershed of Jinsha River[J].Research of Soil and Water Conservation,2011,18(01):77-81.
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西藏高原东部矮西沟流域土壤可蚀性研究

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 18 期数: 2011年01期 页码: 77-81 栏目: 出版日期: 2011-02-20
Title:
The Preliminary Research on the Model Method of Soil Erodibility in the Aixigou Watershed of Jinsha River
作者:
辜世贤1, 王小丹2, 刘淑珍2
1. 湛江师范学院, 广东 湛江 524048;
2. 中国科学院 成都山地灾害与环境研究所 山地环境演变与调控重点实验室, 成都 610041
Author(s):
GU Shi-xian1, WANG Xiao-dan2, LIU Shu-zhen2
1. Zhanjiang Normal University, Zhanjiang, Guangdong, 524048, China;
2. Key Laboratory of Mountain Environment and Regulation, Institute of Mountain Hazards and Environmnet, CAS, Chengdu, 610041
关键词:
金沙江上游; 土壤可蚀性; 模型法
Keywords:
upper reaches of Jinsha River; soil erodibility; model method
分类号:
S157
摘要:
藏东矮西沟流域水土流失严重，土壤抗侵蚀能力差，是金沙江上游大量泥沙的主要来源之一。对研究区的土壤可蚀性的研究，无论是对草地和耕地的保护，还是对金沙江泥沙量的缓减，都具有重大的现实意义，是水土保持工作的基础。该文通过调查研究土壤抗侵蚀能力与土壤侵蚀特征，利用大量的实测资料，比较研究了3种K值模型估算值的数值特征，与调查结果的相关性以及估算值取值范围的可靠性，确定了西藏高原东部土壤K值的最优估算模型为通用流失方程K因子模型，不同土壤的K值大小顺序为灰褐土>高山草甸土>棕壤>暗棕壤，流域K值的平均值为0.005，在全国范围内较小。
Abstract:
In the Aixigou watershed of the Jinsha River, its production capability is backward, soil and water loss is heavy and the anti-erosion ability of soil is not good, all of which cause the Aixigou watershed the main sediment provider of the upper reaches in the Jinsha River. The study on the soil erodibility factor K is the foundation of the soil and water conservation in that area, not only could help to conserve the soil loss of the grassland and farmland, but also could help to reduce the sediment in the Jinsha River. Based on the investigation results of the soil anti-erosion ability and soil erosion characteristics, this paper compared 3 kinds of classical model methods of soil erodibility using various field investigation data. The digital feature, the relationship between the predicted value and the field investigated value and the reliability of the predicted value span were comparative studied. As a result, the best model for soil erodibility estimation in the study area was the USLE-K model, the K value order of different soils was grey cinnamonic soil > alpine meadow soil > brown soil > dark brown forest soil, and the average K value of the watershed was 0.005 which was low around the country.

参考文献/References:

[1] Ashish Pandey V M, Chowdary B C Mal. Identification of critical erosion prone areas in the small agricultural watershed using USLE, GIS and remote sensing[J].Water Resour. Manage, 2007, 21:729-746.
[2] Dabral P P. Neelakshi Baithuri. Ashish Pandey. Soil Erosion Assessment in a Hilly Catchment of North Eastern India Using USLE, GIS and Remote Sensing[J]. Water Resour Manage, 2008, 22:1783-1798.
[3] Shirazi M A, Boersma L. A unifying quantitative analysis of soil texture[J]. Soil Sci. Soc. Am. J., 1984, 48:142-147.
[4] 张科利, 彭文英, 杨红丽.中国土壤可蚀性值及其估算[J].土壤学报, 2007, 44(1):7-13.
[5] 刘吉峰, 李世杰, 秦宁生, 等.青海湖流域土壤可蚀性K值研究[J].干旱地区研究, 2006, 29(3):321-326.
[6] 王小丹, 钟祥浩, 王建平, 等.西藏高原土壤可蚀性及其空间分布规律初步研究[J].干旱地区农业研究, 2004, 27(3):343-346.
[7] Nikolaus J K, Rorke B B. Drying, soil surface condition and interrill erosion on two Ontario soils[J].Catena, 2004, 57(2):1l3-133.
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备注/Memo

收稿日期:2010-7-29;改回日期:2010-11-16。
基金项目:国家科技支撑计划课题（2007BAC06B06-03）
作者简介:辜世贤（1978- ），男，讲师，主要从事自然地理相关的教学和科研工作。E-mail：shixgu@gmail.com
通讯作者:王小丹（1973- ），男，研究员，主要从事生态环境相关科研工作。E-mail：wxd@imde.ac.cn

更新日期/Last Update: 1900-01-01