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Journal of Mountain Science : Volume 8

Journal of Mountain Science : Volume 7

Journal of Mountain Science : Volume 6

Journal of Mountain Science : Volume 5

Journal of Mountain Science : Volume 4

Journal of Mountain Science : Volume 3

Journal of Mountain Science : Volume 2

Journal of Mountain Science : Volume 1

Assessment of soil erosion by compensatory hoeing tillage in a purple soil

Content Provider	Springer Nature Link
Author	Su, Zhengan Zhang, Jianhui Xiong, Donghong Liu, Gangcai
Copyright Year	2012
Abstract	This study explores the role of a traditional tillage method, i.e., compensatory hoeing, for sustainable agro-ecosystem management in the hilly areas of the Chongqing municipality, south-western China. To validate the effects of compensatory tillage on the terraced slopes, the tillage method of noncompensatory hoeing was conducted on a linear slope. To acquire information about $^{137}$Cs inventories and soil texture, soil samples were collected by a core sampler with a 6.8-cm diameter at 5.0-m intervals along the toposequence and the linear slope in the dry season (March) of 2007. Meanwhile, a tillage erosion model was used for evaluating the spatial pattern of tillage erosion. The $^{137}$Cs data showed that on the terraced slope, soil was lost from the upper slope, and soil deposition occurred at the toe slope positions on each terrace. As a result, abrupt changes in the $^{137}$Cs inventories of soil were found over short distances between two sides of terrace boundaries. Results obtained from the tillage erosion model and the $^{137}$Cs data indicate that soil redistribution mainly results from tillage erosion in the terraced landscape. Consecutive non-compensatory tillage caused soil redistribution on the linear slope, resulting in thin soil profile disappearing at the top and soil accumulating at the bottom positions of the linear slope. This result further validates that compensatory tillage could avoid the complete erosion of the thin soil layer at the summit position. Therefore, this traditional tillage method, i.e., compensatory tillage, has maintained the soil quality at the summit of the slope in the past decades.
Starting Page	59
Ending Page	66
Page Count	8
File Format	PDF
ISSN	16726316
Journal	Journal of Mountain Science
Volume Number	9
Issue Number	1
e-ISSN	19930321
Language	English
Publisher	SP Science Press
Publisher Date	2012-01-25
Publisher Place	Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Compensatory tillage Tillage erosion model $^{137}$Cs Three Gorges Reservoir region China Geography (general) Earth Sciences Ecology Environment
Content Type	Text
Resource Type	Article
Subject	Earth-Surface Processes Geography, Planning and Development Geology Global and Planetary Change Nature and Landscape Conservation

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