IGB

Connexion

(Article of periodic en Anglais - 2013)

Document title

Effects of seed morphology on seed removal and plant distribution in the Chinese hill-gully Loess Plateau region

Authors(s) and Affiliation(s)

WANG D. (1) ; JIAO J. (1 2) ; LEI D. (1 3) ; WANG N. (2) ; DU H. (2) ; JIA Y. (2 4) ;
(1) College of Resources and Environment, North-West A&F Univ., Yangling, CHINE
(2) Inst. of Soil and Water Conservation, Chinese Academy of Science and Ministry of Water Resources, Shaanxi, Yangling, CHINE
(3) Henan Building Materials Research & Design Inst., Zengzhou, CHINE
(4) College of Water Conservancy, Agricultural Univ., Shenyang, CHINE

Abstract

This study aimed at understanding how seed morphology affects seed removal, consequently, interacts with plant distribution. Rainfall simulation experiments were conducted over 1 m2 plots with slope of 20° at intensity of 120 mm/h for 30 min, accompanying with vegetation survey of 70 sample plots from 16 eroded slopes. It is showed that seed mass played a key role in the seed removal process. Seed morphology resisting water erosion like big mass, extreme elongated shape, appendages, and mucilage segregation was useful for species to develop on eroded slopes. However, there was no uniform relationship between species distribution and seed removal by water erosion. Some species with seeds resisting water erosion prefer gentle slope to eroded slope, while some species with high seed removal can develop on eroded slope. Some species that distribute on eroded slope may be mainly determined by plant strategies or soil surface characteristics

Source

Article of periodic

published at : Catena / ISSN 0341-8162

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

Millesime : 2013, vol. 104 [pp. 144-152]

Bibliographic references : 33 ref.

Collation : 3 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.2012.11.003

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2013
Refdoc record number (ud4) : 27624631 : Permanent link - XML version
Powered by Pxxo