A one-year short-term biochar application improved carbon accumulation in large macroaggregate fractions

doi:10.1016/j.catena.2014.12.009

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	A one-year short-term biochar application improved carbon accumulation in large macroaggregate fractions
	Zhang, Qingzhong 1; Du, ZhangLiu 1; Lou, Yilai 1; He, Xinhua 2
刊名	CATENA
	2015
卷号	127 页码:26-31
关键词	Black carbon Carbon sequestration Soil organic carbon Soil structure stability
ISSN号	0341-8162
DOI	10.1016/j.catena.2014.12.009
通讯作者	Zhang, Qingzhong
英文摘要	Biochar amended to soil may improve soil aggregation and in turn increase soil organic carbon (SOC) stabilization. In an intensive wheat-maize rotation system of the North China Plain, we investigated effects of one-year biochar application on soil aggregate-size distribution and structure stability, and aggregate-associated C concentrations. Three biochar (< 1 mm diameter, from corncob at 360 degrees C for 24 h) treatments were examined as no biochar amendment control, rate at 4.5 (B4.5) and 9.0 t ha(-1) year(-1) (B9.0). Soil samples were collected from 0-10 and 10-20 cm depths and separated into six water-stable aggregate sizes (>= 5, 2-5, 1-2, 0.5-1, 0.25-0.5 and 0.053-0.25 mm). Results showed that neither soil aggregation nor aggregate stability was significantly affected by biochar amendments. In contrast, more SOC was accumulated in the large fractions (>= 5 and 2-5 mm) under B9.0 than under the other two treatments. Meanwhile, more C occluded in the large fractions (>= 5, 2-5 and 1-2 mm) under both B4.5 and B9.0 than under no-biochar control, suggesting that biochar-C was physically protected within these aggregate fractions. Our data indicated that biochar application could be a potential pathway to improve native SOC and black C stabilization in the intensive cropping system of the North China Plain. (C) 2014 Elsevier B.V. All rights reserved.
学科主题	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000349877800004
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/19758]
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.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Sinoaustralian Joint Lab Sustainable Agroecosyst, Key Lab Agr Environm,Minist Agr, Beijing 100081, Peoples R China 2.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Minist Agr, Key Lab Crop Nutr & Fertilizat, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Qingzhong,Du, ZhangLiu,Lou, Yilai,et al. A one-year short-term biochar application improved carbon accumulation in large macroaggregate fractions[J]. CATENA,2015,127:26-31.
APA	Zhang, Qingzhong,Du, ZhangLiu,Lou, Yilai,&He, Xinhua.(2015).A one-year short-term biochar application improved carbon accumulation in large macroaggregate fractions.CATENA,127,26-31.
MLA	Zhang, Qingzhong,et al."A one-year short-term biochar application improved carbon accumulation in large macroaggregate fractions".CATENA 127(2015):26-31.