globalchange  > 气候变化与战略
DOI: 10.1016/j.chemosphere.2019.125608
Effects of spent mushroom substrate-derived biochar on soil CO2 and N2O emissions depend on pyrolysis temperature
Author: Deng B.; Shi Y.; Zhang L.; Fang H.; Gao Y.; Luo L.; Feng W.; Hu X.; Wan S.; Huang W.; Guo X.; Siemann E.
Source Publication: Chemosphere
ISSN: 456535
Publishing Year: 2020
Volume: 246
Language: 英语
Keyword: Biochar ; Nitrous oxide ; Pyrolysis temperature ; Soil ameliorant ; Spent mushroom substrate ; Under-forest economy
Scopus Keyword: Carbon dioxide ; Forestry ; Global warming ; Greenhouse gases ; Nitrogen oxides ; Planning ; Pyrolysis ; Soils ; Sustainable development ; Bio chars ; Forest economy ; Nitrous oxide ; Pyrolysis temperature ; Spent mushroom substrates ; Gas emissions ; biochar ; carbon dioxide ; charcoal ; nitrous oxide ; unclassified drug ; bamboo ; biochar ; carbon dioxide ; forest soil ; greenhouse gas ; microbial community ; mushroom ; nitrous oxide ; pyrolysis ; soil quality ; sustainable development ; understory ; Article ; bamboo ; carbon footprint ; forest soil ; greenhouse effect ; Lentinula edodes ; pyrolysis ; soil ; soil microflora ; soil quality ; temperature ; warming ; Basidiomycota ; Phyllostachys pubescens
English Abstract: Edible mushroom cultivation is an important industry in intensively managed forest understories. However, proper disposal of spent mushroom substrate (SMS) presents a challenge to its sustainable development. Biochar derived from SMS could be used to improve soil quality while providing a solution for SMS disposal. But SMS biochar pyrolyzed at different temperatures may alter carbon dioxide (CO2) and nitrous oxide (N2O) emissions associated with global warming, especially under the context of nitrogen (N) addition and warming. We conducted a factorial incubation study to examine greenhouse gas emissions and N transformations in moso bamboo forest soil amended with SMS-biochar (control vs. pyrolyzed at 300, 450 or 600 °C) in different N-addition (0 or 100 mg N kg-1 soil) and temperature (20, 25 or 30 °C) treatments. Pyrolysis temperature affected pH, C and N of SMS-biochars. N-transformations depended on the interaction of pyrolysis temperature, N-addition, and incubation temperature but were generally lower with 450 °C biochar addition. Soil N2O emissions increased with N-addition and they were more sensitive to incubation temperatures without biochar. Soil CO2 emissions increased with incubation temperature or biochar pyrolyzed at lower temperatures. Pyrolysis temperature might have regulated the effects of SMS-derived biochar on N2O emissions via changes in dissolved C, N, pH and associated changes in soil microbial community compositions. Because of the importance of sustainable development of this understory industry, amending soils with biochar produced at higher temperatures may be the best strategy for both the disposal of SMS and the mitigation of greenhouse gas emissions. © 2019 Elsevier Ltd
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被引频次[WOS]:7   [查看WOS记录]     [查看WOS中相关记录]
Document Type: 期刊论文
Appears in Collections:气候变化与战略

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Affiliation: Key Laboratory of Silviculture, College of Forestry, Jiangxi Agricultural University, Nanchang, 330045, China; Department of Entomology & Plant Pathology, North Carolina State University, Raleigh, 27695, United States; School of Management, Nanchang University, Nanchang, Jiangxi 330031, China; Department of Biosciences, Rice University, Houston, 77005, United States

Recommended Citation:
Deng B.,Shi Y.,Zhang L.,et al. Effects of spent mushroom substrate-derived biochar on soil CO2 and N2O emissions depend on pyrolysis temperature[J]. Chemosphere,2020-01-01,246
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