中国科学院昆明植物研究所机构知识库
Advanced  
KIB OpenIR  > 资源植物与生物技术所级重点实验室  > 期刊论文
题名: People's perception and socioeconomic determinants of soil erosion: A case study of Samanalawewa watershed, Sri Lanka
作者: Udayakumar, E. P. N.1; Shrestha, R. P.1; Samarakoon, L.2; Schmidt-Vogt, D.3
刊名: INTERNATIONAL JOURNAL OF SEDIMENT RESEARCH
关键词: Soil erosion ; People perception ; Determinants of soil erosion ; Conservation measures ; Sri Lanka
英文摘要: Though soil erosion is an important concern in Sri Lanka, there is a dearth of baseline information on soil erosion in many of its watersheds, which obstructs monitoring of soil erosion and mitigating its effects. In order to assess soil erosion in a critical watershed and to identify its determinants, the Samanalawewa watershed, which contains one of the main hydropower generating reservoirs in Sri Lanka, was selected for this study. Remote-sensing (RS) and geographic information system (GIS) based modeling as well as field experiments were employed to assess and map soil erosion rates. Results indicated that the current rate of soil erosion ranges from 0 to 289 t/ha/yr, and that the average rate of soil erosion has been declining from 20 to 4 t/ha/yr over a period from 1986 to 2008. The current rate of soil erosion is, however, still about 14 to 33 times greater than the natural soil generation rate. Socioeconomic factors and peoples' perception of soil erosion and soil conservation measures were examined using data collected through a household survey. Multiple regression analysis with eighteen covariates of socioeconomic characteristics yielded eleven socioeconomic variables, viz. household size, farm labor, education, land tenure, conservation cost, training, committee membership, professional competencies, income, distance, and financial capital as the predictor variables of soil erosion. Farmers identified improper soil and crop management practices as the major causes of erosion. The adoption of conservation measures, their effectiveness, and their impact on ecosystem services were also examined.
出版日期: 2010-12-01
卷号: 25, 期号:4, 页码:323-339
语种: 英语
收录类别: SCI
学科分类: Environmental Sciences; Water Resources
ISSN号: 1001-6279
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/2337
Appears in Collections:资源植物与生物技术所级重点实验室_期刊论文

Files in This Item: Download All
File Name/ File Size Content Type Version Access License
201112050051.pdf(453KB)----开放获取--View Download

作者单位: 1.Asian Inst Technol, Sch Environm Resources & Dev, Nat Resource Management Field Study, Klongluang 12120, Pathumthani, Thailand
2.Asian Inst Technol, Geoinformat Ctr, Klongluang 12120, Pathumthani, Thailand
3.Chinese Acad Sci, Kunming Inst Bot, Ctr Mt Ecosyst Studies, Kunming 650204, Peoples R China

Recommended Citation:
Udayakumar, EPN; Shrestha, RP; Samarakoon, L; Schmidt-Vogt, D.People's perception and socioeconomic determinants of soil erosion: A case study of Samanalawewa watershed, Sri Lanka,INTERNATIONAL JOURNAL OF SEDIMENT RESEARCH,2010,25(4):323-339
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Udayakumar, E. P. N.]'s Articles
[Shrestha, R. P.]'s Articles
[Samarakoon, L.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Udayakumar, E. P. N.]‘s Articles
[Shrestha, R. P.]‘s Articles
[Samarakoon, L.]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
文件名: 201112050051.pdf
格式: Adobe PDF
此文件暂不支持浏览
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  中国科学院昆明植物研究所 - Feedback
Powered by CSpace