干旱区生态环境知识资源中心(Arid): The response of soil nematode fauna to climate drying and warming in Stipa breviflora desert steppe in Inner Mongolia, China

Arid

DOI	10.1007/s11368-019-02555-5
	The response of soil nematode fauna to climate drying and warming in Stipa breviflora desert steppe in Inner Mongolia, China
	Zhang, Guogang 1,2; Sui, Xin 1,2; Li, Yang 1,2; Jia, Meiqing 3; Wang, Zhongwu 4,5; Han, Guodong4,5 ; Wang, Lichun 6
通讯作者	Jia, Meiqing ; Wang, Lichun
来源期刊	JOURNAL OF SOILS AND SEDIMENTS
ISSN	1439-0108
EISSN	1614-7480
出版年	2020
卷号	20 期号:4 页码:2166-2180
英文摘要	Purpose Global warming and drying are important environmental issues. Our study aimed to investigate how warming and precipitation changes affect soil nematode communities in an Inner Mongolian desert steppe for 10 years. Materials and methods Soil nematodes were extracted by the Baermann funnel method. Changes in the nematode communities under artificial warming and precipitation conditions were assayed by analyzing their abundance and ecological indices. Results and discussion Soil nematode abundance decreased significantly by 37.47% under artificial warming; however, there was no significant effect of warming on the nematode community diversity. As for precipitation experiment, the decreased precipitation eliminated some of non-dominant nematode genera, such as Pratylenchus, Helicotylenchus, and Aphelenchus. It caused not only a significant decrease (37.65%) in soil nematode abundance but also a more structured food web and shorter food chain. However, nematode faunal analysis indicated that the soil nematode community was more resistant to drought. Both soil nematode abundance and community diversity increased significantly as increase of precipitation. In particular, the abundance of plant parasitic nematodes increased by 46.69%, which may due to the increase in total nitrogen content in soil. Nematode faunal analysis showed that increased precipitation improved soil environment for the nematodes, and increased food web connectivity and food chain length. However, bacterivorous nematode abundance decreased by 74.39%, and the decomposition pathway of the nematode community had switched from the bacterial channel to the fungal channel. Conclusions In the Inner Mongolian steppe, both climate drying and warming had negative impacts on soil nematode abundance; however, only drying affected nematode community diversity and food web structure and slowly changed nematode ecological functions. Increased precipitation may aid soil nematode community recovery.
英文关键词	Climate warming Desert steppe Drought Faunal analysis Soil nematodes
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000520712100032
WOS关键词	HIGHER TROPHIC LEVELS ; COMMUNITY STRUCTURE ; ELEVATED CO2 ; FOOD WEBS ; NITROGEN ; DROUGHT ; CARBON ; WATER ; FIELD ; IMPACTS
WOS类目	Environmental Sciences ; Soil Science
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/315079
作者单位	1.Tianjin Normal Univ, Coll Life Sci, Tianjin 300387, Peoples R China; 2.Tianjin Normal Univ, Tianjin Key Lab Anim & Plant Resistance, Tianjin 300387, Peoples R China; 3.Tianjin Normal Univ, Key Lab Water Resource & Environm, Tianjin 300387, Peoples R China; 4.Inner Mongolia Agr Univ, Coll Grassland Resources & Environm, Hohhot 010019, Peoples R China; 5.Inner Mongolia Agr Univ, Minist Grassland Resources Educ, Key Lab, Hohhot 010019, Peoples R China; 6.Jilin Acad Agr Sci, Inst Agr Environm & Resource, Changchun 130033, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Guogang,Sui, Xin,Li, Yang,et al. The response of soil nematode fauna to climate drying and warming in Stipa breviflora desert steppe in Inner Mongolia, China[J],2020,20(4):2166-2180.
APA	Zhang, Guogang.,Sui, Xin.,Li, Yang.,Jia, Meiqing.,Wang, Zhongwu.,...&Wang, Lichun.(2020).The response of soil nematode fauna to climate drying and warming in Stipa breviflora desert steppe in Inner Mongolia, China.JOURNAL OF SOILS AND SEDIMENTS,20(4),2166-2180.
MLA	Zhang, Guogang,et al."The response of soil nematode fauna to climate drying and warming in Stipa breviflora desert steppe in Inner Mongolia, China".JOURNAL OF SOILS AND SEDIMENTS 20.4(2020):2166-2180.