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Effects of biochar and maize straw on the short-term carbon and nitrogen dynamics in a cultivated silty loam in China

文献类型：期刊论文

作者Li, SQ (reprint author), Northwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Peoples R China.; Li, SQ (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China.; Zhu, Li-xia1,2; Xiao, Qian1,3; Shen, Yu-fang1,2; Li, Shi-qing1,2; Shen, YF
刊名ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
出版日期2017
卷号24期号:1页码:1019-1029
关键词Biochar Maize Straw Mineralization Carbon Fraction Nitrogen Fraction Priming Effect
ISSN号0944-1344
DOI10.1007/s11356-016-7829-0
文献子类Article
英文摘要Application of maize straw and biochar can potentially improve soil fertility and sequester carbon (C) in the soil, but little information is available about the effects of maize straw and biochar on the mineralization of soil C and nitrogen (N). We conducted a laboratory incubation experiment with five treatments of a cultivated silty loam, biochar produced from maize straw and/or maize straw: soil only (control), soil + 1 % maize straw (S), soil + 4 % biochar (B1), soil + 4 % biochar + 1 % maize straw (B1S), and soil + 8 % biochar + 1 % maize straw (B2S). CO2 emissions, soil organic C, dissolved organic C, easily oxidized C, total N, mineral N, net N mineralization, and microbial biomass C and N of three replicates were measured periodically during the 60-day incubation using destructive sampling method. C mineralization was highest in treatment S, followed by B2S, B1S, the control, and B1. Total net CO2 emissions suggested that negative or positive priming effect may occur between the biochar and straw according to the biochar addition rate, and biochar mineralization was minimal. By day 35, maize straw, irrespective of the rate of biochar addition, significantly increased microbial biomass C and N but decreased dissolved organic N. Biochar alone, however, had no significant effect on either microbial biomass C or N but decreased dissolved organic N. Mixing the soil with biochar and/or straw significantly increased soil organic C, easily oxidized C and total N contents, and decreased dissolved organic N content. Dissolved organic C contents showed mixed results. Notably, N was immobilized in soil mixed with straw and/or biochar, but the effect was stronger for soil mixed with straw, which may cause N deficiency for plant growth. The application of biochar and maize straw can thus affect soil C and N cycles, and the appropriate proportion of biochar and maize straw need further studies to increase C sequestration.
学科主题Environmental Sciences & Ecology
URL标识查看原文
出版地HEIDELBERG
语种英语
WOS记录号WOS:000392105700095
出版者SPRINGER HEIDELBERG
资助机构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, 2015JQ4107] ; 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, 2015JQ4107] ; 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, 2015JQ4107] ; 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, 2015JQ4107]
源URL[http://ir.iswc.ac.cn/handle/361005/8078]  
专题水保所科研产出--SCI_2017--SCI
通讯作者Li, SQ (reprint author), Northwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Peoples R China.; Li, SQ (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China.; Shen, YF
作者单位1.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China
2.Northwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Peoples R China
3.Northwest A&F Univ, Coll Forestry, Yangling 712100, Peoples R China
推荐引用方式
GB/T 7714		 Li, SQ ,Li, SQ ,Zhu, Li-xia,et al. Effects of biochar and maize straw on the short-term carbon and nitrogen dynamics in a cultivated silty loam in China[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2017,24(1):1019-1029.
APA Li, SQ .,Li, SQ .,Zhu, Li-xia.,Xiao, Qian.,Shen, Yu-fang.,...&Shen, YF.(2017).Effects of biochar and maize straw on the short-term carbon and nitrogen dynamics in a cultivated silty loam in China.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,24(1),1019-1029.
MLA Li, SQ ,et al."Effects of biochar and maize straw on the short-term carbon and nitrogen dynamics in a cultivated silty loam in China".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 24.1(2017):1019-1029.

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来源：水土保持研究所

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