Impact of root diversity upon coupling between soil C and N accumulation and bacterial community dynamics and activity: Result of a 30 year rotation experiment

doi:10.1016/j.geoderma.2017.01.014

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	Impact of root diversity upon coupling between soil C and N accumulation and bacterial community dynamics and activity: Result of a 30 year rotation experiment
	Gao, Changqing 2; Wang, Y (reprint author), Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Shaanxi Provinc, Peoples R China.; Wang, Ying 1,2; Ji, Hongfei 1,2; Wang, Rui 1,2; Guo, Shengli 2; Wang, Y (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi Provinc, Peoples R China.
刊名	GEODERMA
	2017
卷号	292 页码:87-95
关键词	Bacterial Community Crop Rotation Copiotrophic Bacteria Carbon-use Efficiency (Cue) Nitrogen-use Efficiency (Nue) Root Diversity
ISSN号	0016-7061
DOI	10.1016/j.geoderma.2017.01.014
文献子类	Article
英文摘要	Many ecosystem functions and processes depend on biodiversity, however, the effect of root diversity in agroecosystems on soil bacterial communities and processes remained largely unknown. Our objectives were to examine the importance of increased root diversity through crop rotation on soil bacterial community composition and its relationship with soil carbon (C) and nitrogen (N) accumulation, which play an important role in soil fertility. In a field experiment with 30-year crop rotation, where there was no difference in root biomass input in top soil, soil C and N accumulation rates, soil microbial activities and bacterial community composition were investigated. Soil C and N accumulation rates and microbial biomass content were generally increased after rotation, with a greater increase in legume-cereal rotation than in cereal-cereal rotation. Crop rotation also increased soil microbial activity (soil respiration, potential N mineralization), but did not affect soil bacterial diversity. The increased bacterial abundance and changes in bacterial community structure and abundances of dominant bacterial phyla in rotation soils were related to increases in soil C and N accumulation and microbial activity. Our results suggest that increased root diversity through rotation can influence soil bacterial community structure and increase soil fertility by enhancing C and N accumulation rates, and cause positive effects on soil organic C and fertility. The influence of legume-cereal rotation was greater than that of cereal-cereal rotation. (C) 2017 Elsevier B.V. All rights reserved.
学科主题	Agriculture
URL标识	查看原文
出版地	AMSTERDAM
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000401878600008
资助机构	National Natural Science Foundation of China [41301322]; Natural Science Basic Research Plan in Shaanxi Province of China [2015JQ4111]; Chinese Universities Scientific Fund [2014YB055]; Open Fund of State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau [K318009902-1303] ; National Natural Science Foundation of China [41301322]; Natural Science Basic Research Plan in Shaanxi Province of China [2015JQ4111]; Chinese Universities Scientific Fund [2014YB055]; Open Fund of State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau [K318009902-1303] ; National Natural Science Foundation of China [41301322]; Natural Science Basic Research Plan in Shaanxi Province of China [2015JQ4111]; Chinese Universities Scientific Fund [2014YB055]; Open Fund of State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau [K318009902-1303] ; National Natural Science Foundation of China [41301322]; Natural Science Basic Research Plan in Shaanxi Province of China [2015JQ4111]; Chinese Universities Scientific Fund [2014YB055]; Open Fund of State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau [K318009902-1303]
内容类型	期刊论文
源URL	[http://ir.iswc.ac.cn/handle/361005/8004]
专题	水保所科研产出--SCI_2017--SCI
通讯作者	Wang, Y (reprint author), Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Shaanxi Provinc, Peoples R China.; Wang, Y (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi Provinc, Peoples R China.
作者单位	1.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi Provinc, Peoples R China 2.Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Shaanxi Provinc, Peoples R China
推荐引用方式 GB/T 7714	Gao, Changqing,Wang, Y ,Wang, Ying,et al. Impact of root diversity upon coupling between soil C and N accumulation and bacterial community dynamics and activity: Result of a 30 year rotation experiment[J]. GEODERMA,2017,292:87-95.
APA	Gao, Changqing.,Wang, Y .,Wang, Ying.,Ji, Hongfei.,Wang, Rui.,...&Wang, Y .(2017).Impact of root diversity upon coupling between soil C and N accumulation and bacterial community dynamics and activity: Result of a 30 year rotation experiment.GEODERMA,292,87-95.
MLA	Gao, Changqing,et al."Impact of root diversity upon coupling between soil C and N accumulation and bacterial community dynamics and activity: Result of a 30 year rotation experiment".GEODERMA 292(2017):87-95.