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Effects of apple branch biochar on soil C mineralization and nutrient cycling under two levels of N
Li, Shuailin1,2; Liang, Chutao1,2; Shangguan, Zhouping1
2017-12-31
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
Volume607Pages:109-119
Corresponding AuthorShangguan, Zhouping(shangguan@ms.iswc.ac.cn)
AbstractThe 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.
KeywordBiochar Soil carbon Nitrogen Phosphorus Enzyme activity
DOI10.1016/j.scitotenv.2017.06.275
WOS KeywordMICROBIAL COMMUNITY STRUCTURE ; EXTRACTION METHOD ; ENZYME-ACTIVITIES ; NITROGEN-FERTILIZATION ; CARBON MINERALIZATION ; FUMIGATION-EXTRACTION ; FUTURE-DIRECTIONS ; ORGANIC-CARBON ; PARTICLE-SIZE ; ADDITION RATE
Indexed BySCI
Language英语
Funding ProjectNational Key Technology R&D Program of China[2016YFC0501605] ; National Key Technology R&D Program of China[2015BAD22B01]
Funding OrganizationNational Key Technology R&D Program of China
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000408755300013
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/61711
Collection中国科学院地理科学与资源研究所
Corresponding AuthorShangguan, Zhouping
Affiliation1.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
Recommended Citation
GB/T 7714
Li, Shuailin,Liang, Chutao,Shangguan, Zhouping. 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.(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.
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