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(Article of periodic en Anglais - 2011)

Document title

Soil seed bank composition and distribution on eroded slopes in the hill-gully Loess Plateau region (China): influence on natural vegetation colonization

Authors(s) and Affiliation(s)

WANG N. (1 2) ; JIAO J.-Y. (1 2) ; JIA Y.-F. (1 2) ; ZHANG X.-A. (1) ;
(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

In this work, soil seed bank composition and distribution were studied in 3 main microsites selected as sampling plots : fish-scale pits, as artificial deposited micro-topography; under tussocks, as trap microsites; and open areas, as eroded areas. Soil samples were collected at 3 depths. The soil seed bank was identified using germination experiments, and a total of 34 species were identified. The dominant species in the soil seed bank were annual/biennial herbs with an average proportion more than 90%. Compared with the eroded open areas, the fish-scale pits retained a higher density of seeds, and the tussocks retained a larger number of species. However, there was no serious reduction of the soil seed bank in the erosion areas. The present study indicates that, on these eroded slopes, the soil seed bank is not the key factor limiting the colonization of natural vegetation

Source

Article of periodic

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2011, vol. 36, no13 [pp. 1825-1835]

Bibliographic references : 2 p.

Collation : 7 fig., 4 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.2209

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2012
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