Erosion processes and landform evolution on agricultural land - New perspectives from caesium-137 measurements and topographic-based erosion modelling
Quine, TA; Govers, G; Walling, DE; Zhang, XB; Desmet, PJJ; Zhang, YS; Vandaele, K
1997-09-01
发表期刊EARTH SURFACE PROCESSES AND LANDFORMS
ISSN0197-9337
卷号22期号:9页码:799-816
摘要Despite growing interest in soil erosion on agricultural land, relatively little attention has been paid to the influence of erosion processes on the pattern of contemporary landform evolution. This in part reflects the problems associated with upscaling the results of short-term process studies to temporal and spatial scales relevant to the study of landform evolution. This paper presents a new approach to examining the influence of erosion processes on landform evolution on agricultural land which employs: caesium-137 (Cs-137) measurements to provide medium-term (c.40 years) estimates of rates of landform change; experimental data and a topographic-based model to simulate soil redistribution by tillage; a mass-balance model of Cs-137 redistribution to separate the water erosion and tillage components of the Cs-137 'signatures'; and field observations of water erosion for validation. This approach is used to examine the relative importance of water erosion and tillage processes for contemporary landform evolution at contrasting sites near Leuven, in Belgium, and near Yanan, in Shaanxi Province, China. This application of the approach provides good agreement between the derived water erosion rates and field observations, and hitherto unobtainable insights into medium-term patterns and rates of contemporary landform evolution, At Huldenberg in Belgium, despite rill incision of slope concavities and ephemeral gully incision of the valley floor, contemporary landform evolution is dominated by infilling of slope and valley concavities (rates >0.5 mm a(-1)) and gradual lowering of slope angles as a result of tillage. In contrast, at Ansai (near Yanan) the slope is characterized by increase in slope angle over most of the length, recession of the steepest section at a rate >5 mm a(-1) and by increasing planform curvature, At this site, contemporary landform evolution is dominated by water erosion. The constraints on the approach are examined, with particular attention being given to limitations on extrapolation of the results and to the sensitivity of the models to parameter variation. (C) 1997 by John Wiley & Sons, Ltd.
关键词landform evolution caesium-137 soil erosion erosion modelling water erosion tillage erosion China Loess Plateau Belgium
关键词[WOS]CANADIAN PRAIRIE LANDSCAPE ; SOIL-EROSION ; TILLAGE EROSION ; RILL EROSION ; SLOPE ; REDISTRIBUTION ; VARIABILITY ; CESIUM-137 ; CS-137 ; RATES
语种英语
WOS研究方向Physical Geography ; Geology
WOS类目Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号WOS:A1997XW82500001
出版者WILEY-BLACKWELL
引用统计
文献类型期刊论文
条目标识符http://ir.imde.ac.cn/handle/131551/5422
专题成都山地所知识仓储(2009年以前)
作者单位1.UNIV CATHOLIQUE LOUVAIN, NATL FUND SCI RES, LAB EXPT GEMORPHOL, B-3000 LOUVAIN LA NEUVE, BELGIUM
2.CHINESE ACAD SCI, INST MT DISASTERS & ENVIRONM, CHENGDU, SICHUAN, PEOPLES R CHINA
推荐引用方式
GB/T 7714
Quine, TA,Govers, G,Walling, DE,et al. Erosion processes and landform evolution on agricultural land - New perspectives from caesium-137 measurements and topographic-based erosion modelling[J]. EARTH SURFACE PROCESSES AND LANDFORMS,1997,22(9):799-816.
APA Quine, TA.,Govers, G.,Walling, DE.,Zhang, XB.,Desmet, PJJ.,...&Vandaele, K.(1997).Erosion processes and landform evolution on agricultural land - New perspectives from caesium-137 measurements and topographic-based erosion modelling.EARTH SURFACE PROCESSES AND LANDFORMS,22(9),799-816.
MLA Quine, TA,et al."Erosion processes and landform evolution on agricultural land - New perspectives from caesium-137 measurements and topographic-based erosion modelling".EARTH SURFACE PROCESSES AND LANDFORMS 22.9(1997):799-816.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
Erosion processes an(695KB) 开放获取CC BY-NC-SA浏览 请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Quine, TA]的文章
[Govers, G]的文章
[Walling, DE]的文章
百度学术
百度学术中相似的文章
[Quine, TA]的文章
[Govers, G]的文章
[Walling, DE]的文章
必应学术
必应学术中相似的文章
[Quine, TA]的文章
[Govers, G]的文章
[Walling, DE]的文章
相关权益政策
暂无数据
收藏/分享
文件名: Erosion processes and landform evolution on agricultural land.pdf
格式: Adobe PDF
此文件暂不支持浏览
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。