Sensitivity of soil respiration to soil temperature decreased under deep biochar amended soils in temperate croplands

doi:10.1016/j.apsoil.2016.08.018

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	Sensitivity of soil respiration to soil temperature decreased under deep biochar amended soils in temperate croplands
	He, Xinhua 1,2; Du, Zhangliu 3; Wang, Yiding 3; Lu, Ning 3; Zhang, Qingzhong 3
刊名	APPLIED SOIL ECOLOGY
	2016
卷号	108 页码:204-210
关键词	Carbon sequestration Q(10) Soil organic carbon Straw return Triticum aestivum Zea mays
ISSN号	0929-1393
DOI	10.1016/j.apsoil.2016.08.018
通讯作者	He, Xinhua
英文摘要	Long-term effects of biochar application on soil carbon mineralization are important to evaluate the potential of biochar in carbon sequestration. Over a one-year period of time, we monitored soil respiration from a wheat-maize rotation cropping system after five years (once a year) of consecutive biochar application. In doing so four treatments with three replications each in a random design were examined: (1) a control plot without biochar and straw addition, (CT), (2) 4.5 Mg biochar ha(-1) year(-1) (B4.5), (3) 9.0 Mg biochar ha(-1) year(-1) (B9.0) and (4) straw return (SR, similar to 15 Mg wheat + maize aboveground biomass ha(-1)year(-1)). An equivalent amount of inorganic fertilizers with biochar was broadcasted on the soil surface and then plowed into similar to 16 cm soil depth prior to seeding. Both temporal dynamics and cumulative amounts of soil respiration were not significantly changed under the two biochar applications than under CT, but significantly increased under straw return than under CT and two biochar treatments. The annual respiration was 29.42, 29.96, 30.08, and 39.00 Mg CO2 ha(-1) year(-1) in CT, B4.5, B9.0 and SR treatments, respectively. Meanwhile, soil respiration positively correlated with soil temperature but negatively with soil moisture. Sensitivity of soil respiration to temperature (Q(10)) was significantly decreased due to biochar addition. These results indicated the potential of applying biochar to enhance soil carbon sequestration. (C) 2016 Elsevier B.V. All rights reserved.
学科主题	Soil Science
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000386643800023
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/105432]
专题	农业环境与可持续发展研究所_生态安全研究室
作者单位	1.Southwest Univ, Coll Resources & Environm, Ctr Excellence Soil Biol, Chongqing 400715, Peoples R China 2.Univ Western Australia, Sch Plant Biol, Crawley, WA 6009, Australia 3.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Key Lab Agr Environm,Minist Agr, Sino Australian Joint Lab Sustainable Agroecosyst, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	He, Xinhua,Du, Zhangliu,Wang, Yiding,et al. Sensitivity of soil respiration to soil temperature decreased under deep biochar amended soils in temperate croplands[J]. APPLIED SOIL ECOLOGY,2016,108:204-210.
APA	He, Xinhua,Du, Zhangliu,Wang, Yiding,Lu, Ning,&Zhang, Qingzhong.(2016).Sensitivity of soil respiration to soil temperature decreased under deep biochar amended soils in temperate croplands.APPLIED SOIL ECOLOGY,108,204-210.
MLA	He, Xinhua,et al."Sensitivity of soil respiration to soil temperature decreased under deep biochar amended soils in temperate croplands".APPLIED SOIL ECOLOGY 108(2016):204-210.