Effects of long-term tillage on carbon partitioning of nematode metabolism in a Black soil of Northeast China

doi:10.1016/j.apsoil.2019.03.006

	Effects of long-term tillage on carbon partitioning of nematode metabolism in a Black soil of Northeast China
	Yang, Xueming 5; Wu, Donghui 1; Liang, Aizhen 1,4; Cui, Shuyan 3,4; Liu, Ping 1; Zhang, Shixiu 1,4; Mclaughlin, Neil B.2
刊名	APPLIED SOIL ECOLOGY
	2019-06-01
卷号	138 页码:207-212
关键词	Conservation tillage Nematodes Metabolic carbon Partitioning efficiency
ISSN号	0929-1393
DOI	10.1016/j.apsoil.2019.03.006
英文摘要	Conservation tillage is one of the major strategies for maintaining agricultural sustainability and has significant beneficial effects on soil organic carbon (C) retention and soil organism diversity. However, how changes in soil organism populations and/or community structure under different tillage practices contribute to C sequestration in soil is not well documented. In this paper, soil nematode assemblages were used as a model to quantify C allocation in production and respiration of soil organisms in a long-term tillage trial initiated in 2001 on a Black soil (Typic Hapludoll) of Northeastern China. Soils were sampled from no tillage (NT), ridge tillage (RT) and conventional tillage (CT) practices in the soybean (Glycine max Merr.) phase of the maize (Zea mays L.) -soybean rotation. In comparison with CT, RT and NT significantly increased production and respiration C of nematodes as a consequence of more basal C flowing into soil food web. The significantly increased bacterivore metabolic C in both production and respiration under RT and NT suggests that a bacterial-channel was the predominant pathway for C entering the food web. However, the efficiency of C allocation into soil nematodes, as indicated by the ratio of respiration C to production C (R/P), varied widely between RT and NT. NT significantly improved the C storage capacity of almost all nematode trophic groups while RT predominantly promoted the C storage capacity of bacterivores. Our results suggest that NT is more favorable than RT for allocating C into soil organisms under long-term application in the Black soil of Northeast China.
资助项目	National Natural Science Foundation of China[41401272] ; National Natural Science Foundation of China[41430857] ; Key Research Program of Frontier Sciences of Chinese Academy of Sciences[QYZDB-SSW-DQC035] ; Foundation of Excellent Young Talents in Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences[DLSYQ15001] ; Science and Technology Planning Project of Jilin Province[20180520047JH]
WOS研究方向	Agriculture
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000462275800023
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/123975]
专题	中国科学院沈阳应用生态研究所
通讯作者	Wu, Donghui
作者单位	1.Chinese Acad Sci, Northeast Inst Geog & Agroecol, Key Lab Mollisols Agroecol, Changchun 130012, Jilin, Peoples R China 2.Agr & Agri Food Canada, Ottawa Res & Dev Ctr, Ottawa, ON K1A 0C6, Canada 3.Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Liaoning, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Harrow Res & Dev Ctr, Agr & Agrifood Canada, Harrow, ON N0R 1GO, Canada
推荐引用方式 GB/T 7714	Yang, Xueming,Wu, Donghui,Liang, Aizhen,et al. Effects of long-term tillage on carbon partitioning of nematode metabolism in a Black soil of Northeast China[J]. APPLIED SOIL ECOLOGY,2019,138:207-212.
APA	Yang, Xueming.,Wu, Donghui.,Liang, Aizhen.,Cui, Shuyan.,Liu, Ping.,...&Mclaughlin, Neil B..(2019).Effects of long-term tillage on carbon partitioning of nematode metabolism in a Black soil of Northeast China.APPLIED SOIL ECOLOGY,138,207-212.
MLA	Yang, Xueming,et al."Effects of long-term tillage on carbon partitioning of nematode metabolism in a Black soil of Northeast China".APPLIED SOIL ECOLOGY 138(2019):207-212.