干旱区生态环境知识资源中心(Arid): Relationships between plant diversity and biomass production of alpine grasslands are dependent on the spatial scale and the dimension of biodiversity

Arid

DOI	10.1016/j.ecoleng.2018.12.015
	Relationships between plant diversity and biomass production of alpine grasslands are dependent on the spatial scale and the dimension of biodiversity
	Li, Yu 1; Dong, Shikui 1,2; Liu, Shiliang 1; Su, Xukun 3; Wang, Xuexia 4; Zhang, Yong 5; Zhao, Zhenzhen 1; Gao, Xiaoxia 1; Li, Shuai 1; Tang, Lin 6
通讯作者	Dong, Shikui
来源期刊	ECOLOGICAL ENGINEERING
ISSN	0925-8574
EISSN	1872-6992
出版年	2019
卷号	127 页码:375-382
英文摘要	There is no consensus about the relationship between plant species diversity and productivity in grasslands. Lack of consensus might be caused by different diversity metrics used and different spatial scales examined. In particular, the impacts of different biodiversity indices on the plant diversity-plant productivity relationship of alpine grasslands at different spatial scales of the Qinghai-Tibetan Plateau (QTP) require investigation. We investigated the relations of multi-dimensional diversity indices (species richness, Shannon-Wiener diversity, and Pielou evenness) with aboveground and belowground plant biomass in the alpine grasslands of the QTP by linear mixed model (LMM). We assessed the plant diversity and biomass of alpine meadow, alpine steppe, and alpine desert steppe from 5 sites across the vast landscape of the QTP by using 6 randomly placed plots in each site and 27 replicated quadrats in each plot. The species richness of the studied alpine grasslands ranged from 2 to 35, aboveground plant dry biomass ranged from 17 to 838 gm(-2), and belowground plant dry biomass ranged from 398 to 3945 gm(-2). The species richness and Shannon-Wiener indices were positively correlated with aboveground plant biomass and belowground plant biomass at the landscape scale, whereas the Pielou evenness index was negatively correlated with aboveground plant biomass and belowground plant biomass at the landscape scale. Less than 20% sites showed significant relationships between plant diversity indices and plant biomass at site scale. Plant biomass partitioning between the root and shoot was not correlated with the species richness, Shannon-Wiener and Pielou evenness indices at all scales. The plant diversity-biomass relationships of the alpine grassland ecosystems in the QTP depend on both the type (or dimension) of the biodiversity index and the spatial scale of sampling. Thus, the design and implementation of plant diversity conservation should consider different dimensions of plant diversity. It is not enough to increase species richness only in the process of grassland restoration and conservation, but also to reduce species evenness so as to promote productivity more fully, for example, in planting artificial grassland.
英文关键词	Species richness Pielou evenness index Shannon-Wiener index Aboveground biomass Belowground biomass
类型	Article
语种	英语
国家	Peoples R China ; USA
收录类别	SCI-E
WOS记录号	WOS:000455632500039
WOS关键词	SPECIES RICHNESS ; ELEVATED CO2 ; POSITIVE INTERACTIONS ; SOIL BIOTA ; NITROGEN ; EVENNESS ; COMPLEMENTARITY ; COMMUNITIES ; COMPETITION ; NUTRIENTS
WOS类目	Ecology ; Engineering, Environmental ; Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology ; Engineering
来源机构	北京师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215167
作者单位	1.Beijing Normal Univ, Sch Environm, State Key Lab Water Environm Simulat, Beijing 100875, Peoples R China; 2.Cornell Univ, Dept Nat Resources, Ithaca, NY 14853 USA; 3.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China; 4.Beijing Acad Agr & Forestry Sci, Beijing 100097, Peoples R China; 5.Southwest Forestry Univ, Coll Wetlands, Natl Plateau Wetland Res Ctr, Kunming 650224, Yunnan, Peoples R China; 6.Chinese Acad Sci, Northeast Inst Geog & Agroecol, Changchun 130102, Jilin, Peoples R China
推荐引用方式 GB/T 7714	Li, Yu,Dong, Shikui,Liu, Shiliang,et al. Relationships between plant diversity and biomass production of alpine grasslands are dependent on the spatial scale and the dimension of biodiversity[J]. 北京师范大学,2019,127:375-382.
APA	Li, Yu.,Dong, Shikui.,Liu, Shiliang.,Su, Xukun.,Wang, Xuexia.,...&Tang, Lin.(2019).Relationships between plant diversity and biomass production of alpine grasslands are dependent on the spatial scale and the dimension of biodiversity.ECOLOGICAL ENGINEERING,127,375-382.
MLA	Li, Yu,et al."Relationships between plant diversity and biomass production of alpine grasslands are dependent on the spatial scale and the dimension of biodiversity".ECOLOGICAL ENGINEERING 127(2019):375-382.