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(Article of periodic en Anglais - 2008)

Document title

Relationships between vegetation and soil and topography in a dry warm river valley, SW China

Authors(s) and Affiliation(s)

XU X.-L. (1) ; MA K.-M. (1) ; FU B.-J. (1) ; SONG C.-J. (1) ; LIU W. (2) ;
(1) State Key Lab. of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Beijing, CHINE
(2) School of Information Science and Technology, Beijing Inst. of Technology, Beijing, CHINE

Abstract

The aim of this research was to propose a four-staged procedure by combining several multivariate statistical techniques to detect the relationships between vegetation and soil and topography, and thereby identify the key factors for the degraded ecosystem restoration and management. Forty-three plots were selected for the field survey of the vegetation, soil and topography variables in the dry warm river valley of the upper Minjiang River, Sichuan Province, China. Cluster analysis demonstrated that high plant diversity, cover and height were associated with good soil quality and favorable topographic positions with lower solar incident radiation, runoff and soil erosion potential.Correlation analysis and multiple linear stepwise regression analysis affirmed that plant diversity was mainly correlated with soil water content, and soil water content was mainly determined by soil texture (clay content). Identifying the favorable topographic position and the distribution pattern of soil texture and its controlling mechanisms is thus very important for restoration practices

Source

Article of periodic

published at : Catena / ISSN 0341-8162

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

Millesime : 2008, vol. 75, no2 [pp. 138-145]

Bibliographic references : 33 ref.

Collation : 2 fig., 7 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2008.04.016

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2008
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