IMHE OpenIR  > 山地表生过程与生态调控重点实验室
Effect of terrace forms on water and tillage erosion on a hilly landscape in the Yangtze River Basin, China
Zhang, J. H.1; Wang, Y.; Zhang, Z. H.
Corresponding AuthorJ.H. Zhang
2014
Source PublicationGEOMORPHOLOGY
ISSN0169-555X
EISSN1872-695X
Volume216Pages:114-124
SubtypeArticle
AbstractIn long-term agricultural practices, cultivated land on long slopes in hilly areas is sometimes terraced to diminish soil loss caused by water and facilitate farming operations. In the Upper Yangtze River Basin, the forms of the terraces vary with the landform, soil resources and traditional techniques used in different areas. This study assessed the pattern of soil redistribution and soil particle size redistribution for two major types of terraces: with and without embankments. Samples of Cs-137 and soil texture were collected at the upper and lower parts of terraces, and at an interval of 5 m along the transect of the toposequence of individual terraces. The non-embankment terrace (NET) landscape showed increasing Cs-137 downslope, whereas the embankment terrace (ET) landscape exhibited an abrupt change in Cs-137 at the embankment. Tillage erosion dominated the soil redistribution, with smaller contributions made by water erosion in the ET landscape. In addition to tillage erosion, water erosion played an important role in the soil redistribution in the NET landscape, resulting in a net soil loss at both the upper and lower parts of the terrace. Soil fine particle fractions exhibited a trend of gradual increase along the transect of the toposequence in the NET landscape, and a similar fraction of fine particles was found at the upper and lower parts of the terrace. The establishment of embankments at the lower end of the terrace obstructed the formation and development of overland water flow, thereby creating a line of null downslope soil transport leading to tillage-induced soil accumulation on the upslope side of the embankment with little granulometric sorting. In the NET landscape, soil loss seemed to increase as a result of tillage erosion (an important delivery mechanism for water erosion), accelerating the on-site soil loss. The embankments at the lower end of the sloping terrace played a crucial role in the soil redistribution patterns of the toposequence, resulting in a shift from a water-dominated erosion process to a tillage-dominated process and a distinct pattern of soil particle size distribution. (C) 2014 Elsevier B.V. All rights reserved.
KeywordTerrace Form Soil Particle Redistribution Tillage Erosion Water Erosion Yangtze River Basin China
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1016/j.geomorph.2014.03.030
WOS Subject ExtendedPhysical Geography ; Geology
Indexed BySCI
WOS KeywordSOIL REDISTRIBUTION ; CESIUM-137 MEASUREMENTS ; AGRICULTURAL LAND ; INTENSE TILLAGE ; CROP YIELD ; TRANSLOCATION ; PATTERNS ; RATES ; HILLSLOPES ; SLOPE
Language英语
Quartile2区
TOP
WOS SubjectGeography, Physical ; Geosciences, Multidisciplinary
WOS IDWOS:000337776700009
Funding Organization135 Strategic Program of the Institute of Mountain Hazards and Environment, CAS(SDS-135-1206) ; National Natural Science Foundation of China(41271242)
Citation statistics
Cited Times:17[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/6972
Collection山地表生过程与生态调控重点实验室
Affiliation1.Chinese Acad Sci, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610041, Peoples R China
2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
3.Minist Water Conservancy & Power, Chengdu 610041, Peoples R China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Zhang, J. H.,Wang, Y.,Zhang, Z. H.. Effect of terrace forms on water and tillage erosion on a hilly landscape in the Yangtze River Basin, China[J]. GEOMORPHOLOGY,2014,216:114-124.
APA Zhang, J. H.,Wang, Y.,&Zhang, Z. H..(2014).Effect of terrace forms on water and tillage erosion on a hilly landscape in the Yangtze River Basin, China.GEOMORPHOLOGY,216,114-124.
MLA Zhang, J. H.,et al."Effect of terrace forms on water and tillage erosion on a hilly landscape in the Yangtze River Basin, China".GEOMORPHOLOGY 216(2014):114-124.
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