J Integr Plant Biol. ›› 2007, Vol. 49 ›› Issue (5): -.DOI: 10.1111/j.1744-7909.2007.00474.x

Special Issue: Ecology and Global Changes

• Bioenergy Plants •    

Phenological Complementarity Does not Enhance Ecosystem Production in Undisturbed Steppe Community

Liang Zhao,Gui-Xia Yang, Zhong-Ling Liu, Xiao-Ping Xin, Yan-Jiang Luo and Gang Wang   

Abstract: Communities with more species could have a greater variety of species?characteristics, leading to more effective use of limiting resources through niche partitioning (complementarity) and therefore greater production. The effect of phenological complementarity (PC) on ecosystem production has not been fully investigated. The seasonal responses of all vascular plant species were tracked to test the effect of phenological complementarity on ecosystem production within a natural stable steppe community. Although a significant phenological pattern was observed, PC had no significant correlation with community production. The value of PC varied with years, but was observed only in a relatively narrow range during the experimental period. Species diversity (richness and evenness) had no correlation with the ecosystem production. The results suggest that the effect of PC may be saturated and has no contribution to the improvement of ecosystem production in a stable natural grassland community with abundant species.

Key words: ecosystem function, phenological complementarity, steppe community, temporal variation, total annual net primary productivity.

Editorial Office, Journal of Integrative Plant Biology, Institute of Botany, CAS
No. 20 Nanxincun, Xiangshan, Beijing 100093, China
Tel: +86 10 6283 6133 Fax: +86 10 8259 2636 E-mail: jipb@ibcas.ac.cn
Copyright © 2022 by the Institute of Botany, the Chinese Academy of Sciences
Online ISSN: 1744-7909 Print ISSN: 1672-9072 CN: 11-5067/Q
备案号:京ICP备16067583号-22