Effects of Biochar Application on CO2 Emissions from a Cultivated Soil under Semiarid Climate Conditions in Northwest China

doi:10.3390/su9081482

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

	Effects of Biochar Application on CO2 Emissions from a Cultivated Soil under Semiarid Climate Conditions in Northwest China
	Shen, Yufang 1; Zhu, Lixia 1,2; Cheng, Hongyan 1,2; Yue, Shanchao 1; Li, Shiqing 1; Shen, YF ; Li, SQ (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China.
文章类型	Article
	2017
发表期刊	SUSTAINABILITY
ISSN	2071-1050
通讯作者邮箱	shenyufang@nwsuaf.edu.cn ; justin2118@163.com ; chyloveyms@163.com ; yueshanchao@ms.iswc.ac.cn ; sqli@ms.iswc.ac.cn
卷号	9 期号:8
摘要	Biochar amendments to soil have potential as a climate change mitigation strategy. However, their effect on carbon exchange in different ecosystems has not been well evaluated. Understanding how biochar affects carbon exchange from agricultural soil is essential for clarifying the contribution of biochar management to the carbon budget. We performed a laboratory and a two-year field experiment to investigate the short- and medium-term effects of biochar application on CO2 emissions from semiarid farmland. There was no statistically significant alteration in the cumulative CO2 emissions from the mixture of soil with biochar alone, while the emissions increased significantly with additional nitrogen amendment over the 46-day experimental period. Over the two-year experimental period, the cumulative CO2 emissions from the field experiment decreased in the biochar-amended treatment, and the effects were significant at high application rates (20 and 30 tha(-1)) relative to the control in the MS. The seasonal CO2 dynamics were strongly dependent on soil temperature, with a higher correlation with the temperature at a depth of 10cm than with the temperature at a depth of 0cm. Soil temperature, rather than soil water content, was the major environmental factor controlling the soil carbon exchange in the semiarid farmland of the Loess Plateau. In general, biochar additions enhanced aboveground dry matter accumulation in both the early and late stages of maize growth. The results suggested that biochar amendment was a preferable management practice to help maintain or increase carbon sequestration for this region with lower CO2 emissions and higher dry matter production over a longer period.
关键词	Biochar Rate Nitrogen Mineralization c Sequestration Dryland
学科领域	Science & Technology - Other Topics ; Environmental Sciences & Ecology
DOI	10.3390/su9081482
URL	查看原文
收录类别	SCI
出版地	BASEL
语种	英语
WOS记录号	WOS:000408861800195
出版者	MDPI AG
项目资助者	National Natural Science Foundation of China [51279197, 41671307, 50809068]; Fundamental Research Funds for the Central Universities [YQ2013009]; State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau [A314021403-C4] ; National Natural Science Foundation of China [51279197, 41671307, 50809068]; Fundamental Research Funds for the Central Universities [YQ2013009]; State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau [A314021403-C4]
引用统计	被引频次：9[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/361005/7947
专题	水保所科研产出--SCI_2017--SCI
通讯作者	Shen, YF; Li, SQ (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, 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
推荐引用方式 GB/T 7714	Shen, Yufang,Zhu, Lixia,Cheng, Hongyan,et al. Effects of Biochar Application on CO2 Emissions from a Cultivated Soil under Semiarid Climate Conditions in Northwest China[J]. SUSTAINABILITY,2017,9(8).
APA	Shen, Yufang.,Zhu, Lixia.,Cheng, Hongyan.,Yue, Shanchao.,Li, Shiqing.,...&Li, SQ .(2017).Effects of Biochar Application on CO2 Emissions from a Cultivated Soil under Semiarid Climate Conditions in Northwest China.SUSTAINABILITY,9(8).
MLA	Shen, Yufang,et al."Effects of Biochar Application on CO2 Emissions from a Cultivated Soil under Semiarid Climate Conditions in Northwest China".SUSTAINABILITY 9.8(2017).