IMHE OpenIR  > 山地表生过程与生态调控重点实验室
Assessment of gravelly soil redistribution caused by a two-tooth harrow in mountainous landscapes of the Yunnan-Guizhou Plateau, China
Jia, L. Z.1,2; Zhang, J. H.1; Zhang, Z. H.1,2; Wang, Y.3
Corresponding AuthorZhang, J. H.
2017
Source PublicationSOIL & TILLAGE RESEARCH
ISSN0167-1987
EISSN1879-3444
Volume168Pages:11-19
SubtypeArticle
Abstract

The processes of soil redistribution caused by hoeing tillage in hilly areas have been increasingly recognized for nearly two decades. Yet, few studies have examined the effects of hoeing tillage on soil redistribution in rocky mountainous areas. Due to a high rock fragments content of gravelly soils, a special type of hoe called the two-tooth harrow has been widely used in the Yunnan-Guizhou Plateau, China. In order to assess gravelly soil redistribution, a series of tillage experiments were set up and the subsequent data were compared with those acquired previously in hilly areas. The displacement distance of gravelly soils increased with slope gradient linearly in the range of 0.05 to 0.69 m m(-1); however, when the slope gradient extended further, an exponential equation could better describe the relationship between them. The repose angle of gravelly soils was approximately 0.69-0.70 m m(-1). Large-size rock contents and implement types are two important factors affecting tillage depth. Tillage transport coefficients (k(3) and k(4)) of gravelly soil in rocky mountainous areas were 40 and 78 kg m(-1) tillage pass(-1), respectively, displaying a slightly large k(3) value but a significantly small k(4) value compared with those in hilly areas. Due to its energy saving and applicability to gravelly soils, the two-tooth harrow is more attractive to farmers than the normal hoe in rocky mountainous areas. Moreover, the two-tooth harrow is proved to be efficient and effective in reducing tillage erosion than the normal hoe. (C) 2016 Elsevier B.V. All rights reserved.

KeywordGravelly Soil Muddy Soil Two-tooth Harrow Tillage Erosion Rocky Mountainous Area
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1016/j.still.2016.12.010
WOS Subject ExtendedAgriculture
Indexed BySCI
WOS KeywordTILLAGE EROSION RATES ; ROCK FRAGMENT COVER ; LONG-TERM TILLAGE ; STEEP SLOPES ; NORTHERN THAILAND ; POTATO PRODUCTION ; ATLANTIC CANADA ; ORGANIC-CARBON ; MANUAL TILLAGE ; TRANSLOCATION
Language英语
Quartile1区
TOP
WOS SubjectSoil Science
WOS IDWOS:000394079800002
Funding OrganizationNational Basic Research Program of China(2015CB452704) ; National Natural Science Foundation of China(41571267 ; 41271242)
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/18561
Collection山地表生过程与生态调控重点实验室
Affiliation1.Chinese Acad Sci & Minist Water Conservancy, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Sichuan Agr Univ, Coll Water Conservancy & Hydropower Engn, Yaan 625014, Peoples R China
Recommended Citation
GB/T 7714
Jia, L. Z.,Zhang, J. H.,Zhang, Z. H.,et al. Assessment of gravelly soil redistribution caused by a two-tooth harrow in mountainous landscapes of the Yunnan-Guizhou Plateau, China[J]. SOIL & TILLAGE RESEARCH,2017,168:11-19.
APA Jia, L. Z.,Zhang, J. H.,Zhang, Z. H.,&Wang, Y..(2017).Assessment of gravelly soil redistribution caused by a two-tooth harrow in mountainous landscapes of the Yunnan-Guizhou Plateau, China.SOIL & TILLAGE RESEARCH,168,11-19.
MLA Jia, L. Z.,et al."Assessment of gravelly soil redistribution caused by a two-tooth harrow in mountainous landscapes of the Yunnan-Guizhou Plateau, China".SOIL & TILLAGE RESEARCH 168(2017):11-19.
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