干旱区生态环境知识资源中心(Arid): Desertification and nitrogen addition cause species homogenization in a desert steppe ecosystem

Arid

DOI	10.1016/j.ecoleng.2019.07.013
	Desertification and nitrogen addition cause species homogenization in a desert steppe ecosystem
	Tang, Zhuangsheng 1,2; Deng, Lei 3; Shangguan, Zhouping 3; Wang, Bo 4; An, Hui 1
通讯作者	An, Hui
来源期刊	ECOLOGICAL ENGINEERING
ISSN	0925-8574
EISSN	1872-6992
出版年	2019
卷号	138 页码:54-60
英文摘要	Although the influences of desertification and nitrogen (N) addition in shaping species composition and community structure have long been explored, our understanding of the underlying processes is not yet strong. Analyses of trends in the turnover and nestedness components of beta diversity can be informative of the processes response to N addition and desertification in desert steppe ecosystems. Our investigation of the changes in beta diversity under desertification and N addition in a desert steppe ecosystem in northern China showed desertification to significantly decrease beta diversity among communities, which leads to species homogenization. Further, decreases to the turnover component of beta diversity was likely an important factor causing homogenization under desertification. Although nitrogen addition did not fundamentally influence beta diversity, dissimilarity caused by nestedness significantly increased with nitrogen addition. The contrasting effects of desertification and N addition on the turnover and nestedness components of beta diversity suggest that the ordered loss of plant species with desertification improvement. Overall, our findings provide strong evidence that the effects of desertification and N addition on beta diversity change with ecological processes. We recommend that conservation strategies that focus management practices on prevention of desertification will be most effective in maintaining species diversity.
英文关键词	Beta-diversity Spatial species turnover Nestedness Nitrogen addition Desertification
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000485660800008
WOS关键词	NULL MODEL ANALYSIS ; BETA-DIVERSITY ; BIOTIC HOMOGENIZATION ; NESTEDNESS ; MECHANISMS ; RICHNESS ; TURNOVER ; GRASSLANDS ; VEGETATION ; TEMPERATE
WOS类目	Ecology ; Engineering, Environmental ; Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology ; Engineering
EI主题词	2019-11-01
来源机构	西北农林科技大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310622
作者单位	1.Ningxia Univ, United Ctr Ecol Res & Bioresource Exploitat Weste, Minist Educ, Key Lab Restorat & Reconstruct Degraded Ecosyst N, Yinchuan 750021, Peoples R China; 2.Gansu Agr Univ, Key Lab Grassland Ecosyst, Minist Educ, Coll Grassland Sci, Lanzhou 730070, Gansu, Peoples R China; 3.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China; 4.Grassland Expt Stn Yanchi, Wuzhong 751506, Peoples R China
推荐引用方式 GB/T 7714	Tang, Zhuangsheng,Deng, Lei,Shangguan, Zhouping,et al. Desertification and nitrogen addition cause species homogenization in a desert steppe ecosystem[J]. 西北农林科技大学,2019,138:54-60.
APA	Tang, Zhuangsheng,Deng, Lei,Shangguan, Zhouping,Wang, Bo,&An, Hui.(2019).Desertification and nitrogen addition cause species homogenization in a desert steppe ecosystem.ECOLOGICAL ENGINEERING,138,54-60.
MLA	Tang, Zhuangsheng,et al."Desertification and nitrogen addition cause species homogenization in a desert steppe ecosystem".ECOLOGICAL ENGINEERING 138(2019):54-60.