Microbial functional diversity responses to 2 years since biochar application in silt-loam soils on the Loess Plateau

doi:10.1016/j.ecoenv.2017.06.075

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	Microbial functional diversity responses to 2 years since biochar application in silt-loam soils on the Loess Plateau
	Li, Shi-qing 3; Zhu, Li-xia 2,3; Xiao, Qian 1,3; Shen, YF (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China.; Shen, Yu-feng 3
刊名	ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
	2017
卷号	144 页码:578-584
关键词	Agroecosystem Biochar Biolog Ecoplater (Tm) Functional Diversity Soil Microbial Community
ISSN号	0147-6513
DOI	10.1016/j.ecoenv.2017.06.075
文献子类	Article
英文摘要	The structure and function of soil microbial communities have been widely used as indicators of soil quality and fertility. The effect of biochar application on carbon sequestration has been studied, but the effect on soil microbial functional diversity has received little attention. We evaluated effects of biochar application on the functional diversities of microbes in a loam soil. The effects of biochar on microbial activities and related processes in the 0-10 and 10-20 cm soil layers were determined in a two-year experiment in maize field on the Loess Plateau in China. Low-pyrolysis biochar produced from maize straw was applied into soils at rates of 0 (BC0), 10 (BC10) and 30 (BC30) t ha(-1). Chemical analysis indicated that the biochar did not change the pH, significantly increased the amounts of organic carbon and nitrogen, and decreased the amount of mineral nitrogen and the microbial quotient. The biochar significantly decreased average well colour development (AWCD) values in Biolog EcoPlates (TM) for both layers, particularly for the rate of 10 t ha(-1). Biochar addition significantly decreased substrate richness (S) except for BC30 in the 0-10 cm layer. Effects of biochar on the Shannon-Wiener index (H) and Simpson's dominance (D) were not significant, except for a significant increase in evenness index (E) in BC10 in the 10-20 cm layer. A principal component analysis clearly differentiated the treatments, and microbial use of six categories of substrates significantly decreased in both layers after biochar addition, although the use of amines and amides did not differ amongst the three treatments in the deeper layer. Maize above ground dry biomass and height did not differ significantly amongst the treatments, and biochar had no significant effect on nitrogen uptake by maize seedlings. H was positively correlated with AWCD, and negatively with pH. AWCD was positively correlated with mineral N and negatively with pH. Our results indicated that shifts in soil microbial functional diversity affected by biochar were not effective indicators of soil quality in earlier maize growth periods in this region.
学科主题	Environmental Sciences & Ecology ; Toxicology
URL标识	查看原文
出版地	SAN DIEGO
语种	英语
出版者	ACADEMIC PRESS INC ELSEVIER SCIENCE
WOS记录号	WOS:000408520100073
资助机构	National Natural Science Foundation of China [51279197, 41671307]; Fundamental Research Funds for the Central Universities [YQ2013009]; Natural Science Basic Research Plan in Shaanxi Province of China [2012JM3010, K3320215199] ; National Natural Science Foundation of China [51279197, 41671307]; Fundamental Research Funds for the Central Universities [YQ2013009]; Natural Science Basic Research Plan in Shaanxi Province of China [2012JM3010, K3320215199] ; National Natural Science Foundation of China [51279197, 41671307]; Fundamental Research Funds for the Central Universities [YQ2013009]; Natural Science Basic Research Plan in Shaanxi Province of China [2012JM3010, K3320215199] ; National Natural Science Foundation of China [51279197, 41671307]; Fundamental Research Funds for the Central Universities [YQ2013009]; Natural Science Basic Research Plan in Shaanxi Province of China [2012JM3010, K3320215199]
内容类型	期刊论文
源URL	[http://ir.iswc.ac.cn/handle/361005/7913]
专题	水保所科研产出--SCI_2017--SCI
通讯作者	Shen, YF (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China.
作者单位	1.Northwest A&F Univ, Coll Forestry, Yangling 712100, Peoples R China 2.Northwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Peoples R China 3.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China
推荐引用方式 GB/T 7714	Li, Shi-qing,Zhu, Li-xia,Xiao, Qian,et al. Microbial functional diversity responses to 2 years since biochar application in silt-loam soils on the Loess Plateau[J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,2017,144:578-584.
APA	Li, Shi-qing,Zhu, Li-xia,Xiao, Qian,Shen, YF ,&Shen, Yu-feng.(2017).Microbial functional diversity responses to 2 years since biochar application in silt-loam soils on the Loess Plateau.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,144,578-584.
MLA	Li, Shi-qing,et al."Microbial functional diversity responses to 2 years since biochar application in silt-loam soils on the Loess Plateau".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 144(2017):578-584.