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(Article of periodic en Anglais - 2014)

Document title

Effects of crop rotation and rainfall on water erosion on a gentle slope in the hilly loess area, China

Authors(s) and Affiliation(s)

WEI W. (1) ; CHEN L. (1) ; ZHANG H. (1 2) ; YANG L. (1) ; YU Y. (1) ; CHEN J. (3) ;
(1) State Key Lab. of Urban and Regional Ecology, Research Center for Eco-environmental Sciences, CAS, Beijing, CHINE
(2) Univ. of Chinese Academy of Sciences, Beijing, CHINE
(3) Inst. of Soil and Water Conservation, Gansu, Dingxi, CHINE

Abstract

In this study, 21 plots including 7 crop-rotation types (CRTs) under 3 different slight gradients (10°, 15°, 20°), were established in Dingxi, a typical semiarid hilly loess area in China. Eight consecutive years of erosion data under different gentle-slope cultivation conditions were compared and analyzed. The most interesting and key finding is that water erosion remained far higher on slopes with gradients of less than 20° than the tolerable criterion, even when some CRT measures and field treatments were implemented. It is highlighted that : Potato cultivation results in higher erosion rates than other crops on sloping land; Potato farming using additional measures should be conducted on terraces; Crop-shrub intercropping and farmland abandonment contribute to erosion control; Effects of CRTs on water erosion are also influenced by rain features

Source

Article of periodic

published at : Catena / ISSN 0341-8162

Editor : Catena, Cremlingen-Destedt - ALLEMAGNE (1973)

Millesime : 2014, vol. 123 [pp. 205-214]

Bibliographic references : 1 p.

Collation : 2 fig., 4 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2014.08.002

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2014
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