The effect of phosphorus addition, soil moisture, and plant type on soil nematode abundance and community composition

doi:10.1007/s11368-018-2146-5

CORC > 成都生物研究所 > 中国科学院成都生物研究所 > 生物多样性与生态系统服务领域 > 中国科学院山地生态恢复与生物资源利用重点实验室

	The effect of phosphorus addition, soil moisture, and plant type on soil nematode abundance and community composition
	Olatunji, Olusanya Abiodun 1,2; Gong, Shanxing 1; Tariq, Akash 1,2; Pan, Kaiwen 1; Sun, Xiaoming 1; Chen, Wenkai 1; Zhang, Lin 1; Dakhil, Mohammed A.1,2,3; Huang, Dan 1,2; Tan, Xue 1,2
刊名	JOURNAL OF SOILS AND SEDIMENTS
	2019
卷号	19 期号:3 页码:1139-1150
关键词	Biodiversity Drought Phosphorus Microfauna Nitrogen Nematodes
ISSN号	1439-0108
DOI	10.1007/s11368-018-2146-5
产权排序	1
文献子类	Article
英文摘要	PurposeEnvironmental variables such as soil moisture and phosphorus (P) might influence above- and below-ground biodiversity. In this study, we investigated the rarely reported individual and interactive multifactor effects of soil moisture and phosphorus addition with the type of above-ground tree species (biological interactions) on the soil nematode community structure.Materials and methodsWe established a completely randomized experimental design with two plant types (N-2-fixer and non-nitrogen fixer) and different combinations of water treatments and P additions (i.e., water with P addition, water only, drought with P addition, and drought only) in a greenhouse and investigated their effects on the soil chemical properties and nematode community. Soil samples were collected at the end of the experiment and were analyzed for soil moisture content (SM), available phosphorus (aP), nitrate nitrogen (NO3--N), ammonium nitrogen (NH4+-N), dissolved organic carbon (DOC), dissolved organic nitrogen (DON), and nematode community. The following trophic groups were assigned to the nematodes: bacterivores (Ba), fungivores (Fu), omnivores-predators (Op), and plant parasites (PP). The channel index (CI), enrichment index (EI), maturity index (MI), genus richness (GR), and Simpson dominance (Ig) were adopted to indicate the indices of the nematode food web.Results and discussionPhosphorus addition and its interaction with water treatments had no statistically significant effects on the soil nematode community, but there were significant decreasing (p<0.05) effects of P addition on the total density of nematodes of the N-2-fixing tree under optimum water treatment. There were no significant interactive effects of P addition and water treatments on all the trophic groups, but plant type, water treatments, and their interactions significantly affected the density of most nematode trophic groups. The total nematode abundances of bacterivores, plant parasitic, omnivores, and enrichment index were significantly higher in the N-2-fixers than in the non-nitrogen-fixing tree.ConclusionsSoil nematode abundance and community composition were more affected by the plant type than by the P addition and its interaction with water treatments. Drought exerted adverse effects on the total density of soil nematodes, the dominant genera, and the trophic groups. This study demonstrated that the rate of drought impact hinges more on the type of tree and that N-2-fixing tree could still maintain the soil food web structure irrespective of the environmental changes.
学科主题	Agriculture/agronomy
URL标识	查看原文
WOS关键词	MICROBIAL BIOMASS ; FOOD-WEB ; DIVERSITY ; CARBON ; FERTILIZATION ; BIODIVERSITY ; RHIZOSPHERE ; RESPONSES ; IMPACTS
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000459805400009
内容类型	期刊论文
源URL	[http://210.75.237.14/handle/351003/31117]
专题	生物多样性与生态系统服务领域_中国科学院山地生态恢复与生物资源利用重点实验室
通讯作者	Pan, Kaiwen
作者单位	1.Chinese Acad Sci, CAS Key Lab Mt Ecol Restorat & Bioresource Utiliz, Ecol Restorat & Biodivers Conservat Key Lab Sichu, Chengdu Inst Biol, Chengdu 610041, Sichuan, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China; 3.Helwan Univ, Bot & Microbiol Dept, Fac Sci, Cairo 11790, Egypt
推荐引用方式 GB/T 7714	Olatunji, Olusanya Abiodun,Gong, Shanxing,Tariq, Akash,et al. The effect of phosphorus addition, soil moisture, and plant type on soil nematode abundance and community composition[J]. JOURNAL OF SOILS AND SEDIMENTS,2019,19(3):1139-1150.
APA	Olatunji, Olusanya Abiodun.,Gong, Shanxing.,Tariq, Akash.,Pan, Kaiwen.,Sun, Xiaoming.,...&Tan, Xue.(2019).The effect of phosphorus addition, soil moisture, and plant type on soil nematode abundance and community composition.JOURNAL OF SOILS AND SEDIMENTS,19(3),1139-1150.
MLA	Olatunji, Olusanya Abiodun,et al."The effect of phosphorus addition, soil moisture, and plant type on soil nematode abundance and community composition".JOURNAL OF SOILS AND SEDIMENTS 19.3(2019):1139-1150.