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(Article of periodic en Anglais - 2011)

Document title

Seed removal on loess slopes in relation to runoff and sediment yield

Authors(s) and Affiliation(s)

HAN L. (1 2) ; JIAO J. (1 2) ; JIA Y. (2) ; WANG N. (2) ; LEI D. (1) ; LI L. (2) ;
(1) Inst. of Soil and Water Conservation, Northwest A & F Univ., Yangling, CHINE
(2) Inst. of Soil and Water Conservation, Chinese Academy of Science and Ministry of Water Resources, Shaanxi, Yangling, CHINE

Abstract

The aims of this study were to investigate the process of seed loss on loess slopes and its relationship to the yield of runoff and sediment, the effects of rainfall intensity, slope gradient and seed morphology on seed removal. Rainfall simulation experiments were carried out on the Chinese hilly-gullied Loess Plateau. Results showed that the accumulated seed loss rates in the rainfall process were closely related to the corresponding sediment yield, and even more closely related to the runoff amount. The seed removal obviously increased with rainfall intensity but did not obviously change with slope gradient, and results varied among species. It was suggested that seed removal during water erosion events can affect seed redistribution and, consequently, species composition and vegetation spatial distribution

Source

Article of periodic

published at : Catena / ISSN 0341-8162

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

Millesime : 2011, vol. 85, no1 [pp. 12-21]

Bibliographic references : 51 ref.

Collation : 7 fig., 2 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2010.11.007

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2011
Refdoc record number (ud4) : 24139443 : Permanent link - XML version
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