耕作侵蚀及其农业环境意义
李勇1; 张建辉1; 罗大卫(LobbD.A)2; 张建国1
刊名山地学报
2000
卷号18期号:6页码:514-519
关键词耕作侵蚀 耕作位移 农业生态系统 农业环境 土壤
ISSN号1008-2786
其他题名TILLAGE TRANSLOCATION AND TILLAGE ER0S10N PR0CESSES AND THEIR TMPLICATIONS FOR AGR0-EC0SYSTEMS
通讯作者李勇
合作状况国际
中文摘要21世纪来临之际,耕作研究和耕作习惯将发生重大变化。这一革命性变化的驱动力是人们对耕作位移与耕作侵蚀及其农业持续性和环境保护的日益了解和认识。耕作位移是耕作活动造成的土壤移动。因受耕作工具的设计、操作、景观地形和土壤性质等因素的影响,耕作位移在景观内的变化导致净土壤重新分配,即耕作侵蚀。典型的民政部是耕作连续地导致土壤顺坡移动,造成土壤在坡上部严重流失,而在坡下部堆积。本文描连了耕作位移和耕作侵蚀过程,概括了其最新研究进展,闱违了耕作侵蚀对作物生产力和温室热应等的农业环境意义,提出了土壤侵蚀研究者面临的挑战和机堪。
英文摘要As we begin the 21st century tillage research and practices will take significant new directions. This revolution will be driven by a growing awareness and understanding of the processes of tillage translocation and tillage erosion and of their implications for agricultural sustainability and environmental protection .Tillage translocation is the resultant displacement of soil by tillage. Soil can be moved meters by a single pass of tillage .The translocation of soil by tillage varies greatly within landscapes as a result of several factors; these include the design and operation of tillage implements and the topographic and soil properties of landscapes .The consequence of this variation in translocation is net soil redistribution within landscapes, i.e. tillage erosion. Typically, tillage results in the progressive downslope movement of soil , causing severe soil loss on upper slope positions and accumulation in lower slope positions .Tillage translocation and tillage erosion processes are described. An overview of the research to date is presented. A broad range of agri_environmental implications is examined including: crop productivity and greenhouse gas emission .Challenges and opportunities for tillage researchers are identified.
学科主题S157.1
分类号S157.1
收录类别CSCD ; 北大中文核心
语种中文
CSCD记录号CSCD:733169
公开日期2010-08-15
内容类型期刊论文
源URL[http://ir.imde.ac.cn/handle/131551/1410]  
专题成都山地灾害与环境研究所_成都山地所知识仓储(2009年以前)
成都山地灾害与环境研究所_山地灾害与地表过程重点实验室
成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
作者单位1.中国科学院、水利部成都山地灾害与环境研究所
2.加拿大Manitoba大学土壤科学系
推荐引用方式
GB/T 7714
李勇,张建辉,罗大卫(LobbD.A),等. 耕作侵蚀及其农业环境意义[J]. 山地学报,2000,18(6):514-519.
APA 李勇,张建辉,罗大卫,&张建国.(2000).耕作侵蚀及其农业环境意义.山地学报,18(6),514-519.
MLA 李勇,et al."耕作侵蚀及其农业环境意义".山地学报 18.6(2000):514-519.
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