Relationship between plant diversity and spatial stability of aboveground net primary productivity (ANPP) across different grassland ecosystems

	Relationship between plant diversity and spatial stability of aboveground net primary productivity (ANPP) across different grassland ecosystems
	Zhao Na 2; Wang Zhengwen 1; Lv Jinying 2; Wang Kun 2
刊名	AFRICAN JOURNAL OF BIOTECHNOLOGY
	2010-10-01
卷号	9 期号:40 页码:6708-6715
关键词	Biodiversity Experiment Spatial Variability Functional Trait Diversity Ecosystem Type
ISSN号	1684-5315
英文摘要	Theory predicts that greater biodiversity is expected to enhance stability of ecosystem. In field experiment, we created some diversity-level assemblages by removing functional groups across two grassland ecosystems and evaluated the responses of spatial stability of aboveground net primary productivity (ANPP) to varying functional trait diversity. The results revealed that higher diversity promoted greater spatial stability in the semi-shrub grassland ecosystem except SGB, whereas the similar pattern in diversity-stability relationship had been scarcely found in the typical steppe ecosystem. Additionally, we found that factors-influencing spatial stability varied across different grassland types. In the typical steppe ecosystem, spatial stability was only accounted for by positive sampling effect induced by high dispersal rate of rhizomatous grass. By contrast, in the semi-shrub grassland ecosystem, diversity level together with positive sampling effect commonly contributed to spatial stability, moreover, effect of particular trait overshadowed that of diversity. We also found that the positive diversity-stability relationship did not exist when compared with two grassland types. Research provides new insights into understanding the relationship between biodiversity and ecosystem functioning in varying environments. This relationship is not consistent across different ecosystems and is often system-dependent. Critical trait of species is particularly an important determinant for ecosystem functioning.
WOS研究方向	Biotechnology & Applied Microbiology
语种	英语
出版者	ACADEMIC JOURNALS
WOS记录号	WOS:000282763800015
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/121633]
专题	中国科学院沈阳应用生态研究所
通讯作者	Wang Kun
作者单位	1.Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China 2.China Agr Univ, Dept Grassland Sci, Beijing 100193, Peoples R China
推荐引用方式 GB/T 7714	Zhao Na,Wang Zhengwen,Lv Jinying,et al. Relationship between plant diversity and spatial stability of aboveground net primary productivity (ANPP) across different grassland ecosystems[J]. AFRICAN JOURNAL OF BIOTECHNOLOGY,2010,9(40):6708-6715.
APA	Zhao Na,Wang Zhengwen,Lv Jinying,&Wang Kun.(2010).Relationship between plant diversity and spatial stability of aboveground net primary productivity (ANPP) across different grassland ecosystems.AFRICAN JOURNAL OF BIOTECHNOLOGY,9(40),6708-6715.
MLA	Zhao Na,et al."Relationship between plant diversity and spatial stability of aboveground net primary productivity (ANPP) across different grassland ecosystems".AFRICAN JOURNAL OF BIOTECHNOLOGY 9.40(2010):6708-6715.