Effects of apple branch biochar on soil C mineralization and nutrient cycling under two levels of N

doi:10.1016/j.scitotenv.2017.06.275

ISWC OpenIR > 水保所科研产出--SCI > 2017--SCI

	Effects of apple branch biochar on soil C mineralization and nutrient cycling under two levels of N
	Li, Shuailin 1,2; Liang, Chutao 1,2; Shangguan, Zhouping 1; Shangguan, ZP (reprint author), Inst Soil & Water Conservat, Xinong Rd 26, Yangling 712100, Shaanxi, Peoples R China.
文章类型	Article
	2017
发表期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
通讯作者邮箱	shangguan@ms.iswc.ac.cn
卷号	607 页码:109-119
摘要	The incorporation of biochar into soil has been proposed as a strategy for enhancing soil fertility and crop productivity. However, there is limited information regarding the responses of soil respiration and the C, N and P cycles to the addition of apple branch biochar at different rates to soil with different levels of N. A 108-day incubation experiment was conducted to investigate the effects of the rate of biochar addition (0, 1, 2 and 4% by mass) on soil respiration and nutrients and the activities of enzymes involved in C, N and P cycling under two levels of N. Our results showed that the application of apple branch biochar at rates of 2% and 4% increased the C-mineralization rate, while biochar amendment at 1% decreased the C-mineralization rate, regardless of the N level. The soil organic C and microbial biomass C and P contents increased as the rate of biochar addition was increased to 2%. The biochar had negative effects on beta-glucosidase, N-acetyl-beta-glucosaminidase and urease activity in N-poor soil but exerted a positive effect on all of these factors in N-rich soil. Alkaline phosphatase activity increased with an increase in the rate of biochar addition, but the available P contents after all biochar addition treatments were lower than those obtained in the treatments without biochar. Biochar application at rates of 2% and 4% reduced the soil nitrate content, particularly in N-rich soil. Thus, apple branch biochar has the potential to sequester C and improve soil fertility, but the responses of soil C mineralization and nutrient cycling depend on the rate of addition and soil N levels. (C) 2017 Elsevier B.V. All rights reserved.
关键词	Biochar Soil Carbon Nitrogen Phosphorus Enzyme Activity
学科领域	Environmental Sciences & Ecology
DOI	10.1016/j.scitotenv.2017.06.275
URL	查看原文
收录类别	SCI
出版地	AMSTERDAM
语种	英语
WOS记录号	WOS:000408755300013
出版者	ELSEVIER SCIENCE BV
项目资助者	National Key Technology R&D Program of China [2016YFC0501605, 2015BAD22B01] ; National Key Technology R&D Program of China [2016YFC0501605, 2015BAD22B01]
引用统计	被引频次：21[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	sbir.nwafu.edu.cn/handle/361005/7871
专题	水保所科研产出--SCI_2017--SCI
通讯作者	Shangguan, ZP (reprint author), Inst Soil & Water Conservat, Xinong Rd 26, Yangling 712100, Shaanxi, Peoples R China.
作者单位	1.Chinese Acad Sci & Minist Water Resources, State Key Lab Soil Eros & Dryland Farming Loess P, Inst Soil & Water Conservat, Xianyang 712100, Shaanxi, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Li, Shuailin,Liang, Chutao,Shangguan, Zhouping,et al. Effects of apple branch biochar on soil C mineralization and nutrient cycling under two levels of N[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2017,607:109-119.
APA	Li, Shuailin,Liang, Chutao,Shangguan, Zhouping,&Shangguan, ZP .(2017).Effects of apple branch biochar on soil C mineralization and nutrient cycling under two levels of N.SCIENCE OF THE TOTAL ENVIRONMENT,607,109-119.
MLA	Li, Shuailin,et al."Effects of apple branch biochar on soil C mineralization and nutrient cycling under two levels of N".SCIENCE OF THE TOTAL ENVIRONMENT 607(2017):109-119.