Effects of straw and biochar amendments on aggregate stability, soil organic carbon, and enzyme activities in the Loess Plateau, China

doi:10.1007/s11356-017-8505-8

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

	Effects of straw and biochar amendments on aggregate stability, soil organic carbon, and enzyme activities in the Loess Plateau, China
	Zhang, Man 1,3; Cheng, Gong 2; Feng, Hao 1; Sun, Benhua 2; Zhao, Ying 2; Chen, Haixin 1; Chen, Jing 2; Dyck, Miles 5; Wang, Xudong 2; Zhang, Jianguo 2; Zhang, Afeng 2; Zhang, AF (reprint author), Northwest A&F Univ, Key Lab Plant Nutr & Agri Environm Northwest Chin, Minist Agr, Coll Nat Resources & Environm, 3 Taicheng, Yangling 712100, Peoples R China.
文章类型	Article
	2017
发表期刊	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
ISSN	0944-1344
通讯作者邮箱	zhangafeng@nwsuaf.edu.cn
卷号	24 期号:11 页码:10108-10120
摘要	Soil from the Loess Plateau of China is typically low in organic carbon and generally has poor aggregate stability. Application of organic amendments to these soils could help to increase and sustain soil organic matter levels and thus to enhance soil aggregate stability. A field experiment was carried out to evaluate the effect of the application of wheat straw and wheat straw-derived biochar (pyrolyzed at 350550 degrees C) amendments on soil aggregate stability, soil organic carbon (SOC), and enzyme activities in a representative Chinese Loess soil during summer maize and winter wheat growing season from 2013 to 2015. Five treatments were set up as follows: no fertilization (CK), application of inorganic fertilizer (N), wheat straw applied at 8 t ha(-1) with inorganic fertilizer (S8), and wheat straw-derived biochar applied at 8 t ha(-1) (B8) and 16 t ha(-1) (B16) with inorganic fertilizer, respectively. Compared to the N treatment, straw and straw-derived biochar amendments significantly increased SOC (by 33.7-79.6%), microbial biomass carbon (by 18.9-46.5%), and microbial biomass nitrogen (by 8.3-38.2%), while total nitrogen (TN) only increased significantly in the B16 plot (by 24.1%). The 8 t ha(-1) straw and biochar applications had no significant effects on soil aggregation, but a significant increase in soil macro-aggregates (>2 mm) (by 105.8%) was observed in the B16 treatment. The concentrations of aggregate-associated SOC increased by 40.4-105.8% in macro-aggregates (>2 mm) under straw and biochar amendments relative to the N treatment. No significant differences in invertase and alkaline phosphatase activity were detected among different treatments. However, urease activity was greater in the biochar treatment than the straw treatment, indicating that biochar amendment improved the transformation of nitrogen in the soil. The carbon pool index and carbon management index were increased with straw and biochar amendments, especially in the B16 treatment. In conclusion, application of carbonized crop residue as biochar, especially at a rate of 16 t ha(-1), could be a potential solution to recover the depleted SOC and enhance the formation of macro-aggregates in Loess Plateau soils of China.
关键词	Straw Biochar Soil Aggregate Stability Soil Organic Carbon Enzyme Activities Loess Plateau
学科领域	Environmental Sciences & Ecology
DOI	10.1007/s11356-017-8505-8
URL	查看原文
收录类别	SCI
出版地	HEIDELBERG
语种	英语
WOS记录号	WOS:000399401700024
出版者	SPRINGER HEIDELBERG
项目资助者	National Natural Science Foundation of China [41301305, 41471222, 41601321]; National 863 Research Program [2013AA102904]; Technology Co-innovation Projects in Shaanxi Province [2016KTZDNY03-06]; NWAFU Research Project [Z111021302, Z109021614]; Chinese Universities Scientific Fund [2014YB062, 2452015355] ; National Natural Science Foundation of China [41301305, 41471222, 41601321]; National 863 Research Program [2013AA102904]; Technology Co-innovation Projects in Shaanxi Province [2016KTZDNY03-06]; NWAFU Research Project [Z111021302, Z109021614]; Chinese Universities Scientific Fund [2014YB062, 2452015355]
引用统计	被引频次：36[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/361005/8009
专题	水保所科研产出--SCI_2017--SCI
通讯作者	Zhang, AF (reprint author), Northwest A&F Univ, Key Lab Plant Nutr & Agri Environm Northwest Chin, Minist Agr, Coll Nat Resources & Environm, 3 Taicheng, Yangling 712100, Peoples R China.
作者单位	1.Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Shanxi, Peoples R China 2.Northwest A&F Univ, Key Lab Plant Nutr & Agri Environm Northwest Chin, Minist Agr, Coll Nat Resources & Environm, 3 Taicheng, Yangling 712100, Peoples R China 3.Chinese Acad Sci, Inst Soil & Water Conservat, Yangling 712100, Shanxi, Peoples R China 4.Minist Water Resources, Yangling 712100, Shanxi, Peoples R China 5.Univ Alberta, Dept Renewable Resources, 773 Gen Serv Bldg, Edmonton, AB T6G 2H1, Canada
推荐引用方式 GB/T 7714	Zhang, Man,Cheng, Gong,Feng, Hao,et al. Effects of straw and biochar amendments on aggregate stability, soil organic carbon, and enzyme activities in the Loess Plateau, China[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2017,24(11):10108-10120.
APA	Zhang, Man.,Cheng, Gong.,Feng, Hao.,Sun, Benhua.,Zhao, Ying.,...&Zhang, AF .(2017).Effects of straw and biochar amendments on aggregate stability, soil organic carbon, and enzyme activities in the Loess Plateau, China.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,24(11),10108-10120.
MLA	Zhang, Man,et al."Effects of straw and biochar amendments on aggregate stability, soil organic carbon, and enzyme activities in the Loess Plateau, China".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 24.11(2017):10108-10120.