气候变化领域集成服务门户(CCPortal): Community structure of grassland ground-dwelling arthropods along increasing soil salinities

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DOI	10.1007/s11356-017-1011-1
	Community structure of grassland ground-dwelling arthropods along increasing soil salinities
	Pan, Chengchen; Feng, Qi; Liu, Jiliang; Li, Yulin; Li, Yuqiang; Yu, Xiaoya
发表日期	2018
ISSN	0944-1344
EISSN	1614-7499
卷号	25 期号:8
英文摘要	Ground-dwelling arthropod communities are influenced by numerous biotic and abiotic factors. Little is known, however, about the relative importance of vegetation structure and abiotic environmental factors on the patterns of ground-dwelling arthropod community across a wide range of soil salinities. Here, a field survey was conducted to assess the driving forces controlling ground-dwelling arthropod community in the salinized grasslands in the Hexi Corridor, Gansu Province, China. The data were analyzed by variance partitioning with canonical correspondence analysis (CCA). We found that vegetation structure and edaphic factors were at least of similar importance to the pattern of the whole ground-dwelling arthropod community. However, when all collected ground-dwelling arthropods were categorized into three trophic guilds (predators, herbivores, and decomposers), as these groups use different food sources, their populations were controlled by different driving forces. Predators and decomposers were mainly determined by biotic factors such as vegetation cover and aboveground plant biomass and herbivores by plant density and vegetation cover. Abiotic factors were also major determinants for the variation occurring in these guilds, with predators strongly affected by soil electrical conductivity (EC) and the content of fine particles (silt + clay, CS), herbivores by soil N:P, EC, and CS, and decomposers by soil EC and organic matter content (SOM). Since plant cover, density, and aboveground biomass can indicate resource availability, which are mainly constrained by soil N:P, EC, CS, and SOM, we consider that the ground-dwelling arthropod community in the salinized grasslands was mainly influenced by resource availability.
关键词	China Grassland Pitfall trap Ground-dwelling arthropod trophic guilds Variance partitioning
学科领域	Environmental Sciences & Ecology
语种	英语
WOS研究方向	Environmental Sciences
来源期刊	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/112002
作者单位	Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Pan, Chengchen,Feng, Qi,Liu, Jiliang,et al. Community structure of grassland ground-dwelling arthropods along increasing soil salinities[J]. 中国科学院西北生态环境资源研究院,2018,25(8).
APA	Pan, Chengchen,Feng, Qi,Liu, Jiliang,Li, Yulin,Li, Yuqiang,&Yu, Xiaoya.(2018).Community structure of grassland ground-dwelling arthropods along increasing soil salinities.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,25(8).
MLA	Pan, Chengchen,et al."Community structure of grassland ground-dwelling arthropods along increasing soil salinities".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 25.8(2018).