Soil CO2 Emissions and Drivers in Rice-Wheat Rotation Fields Subjected to Different Long-Term Fertilization Practices

doi:10.1002/clen.201400478

CORC > 武汉植物园 > 中国科学院武汉植物园

	Soil CO2 Emissions and Drivers in Rice-Wheat Rotation Fields Subjected to Different Long-Term Fertilization Practices
	Li, Zhiguo 2; Zhang, Guoshi 2; Chen, Fang 2; Liu, Yi 1,2,3; Hu, Cheng 5; Mohamed, Ibrahim 2,4; Wang, Jing 2
刊名	CLEAN-SOIL AIR WATER
	2016-07-01
卷号	44 期号:7 页码:867-876
关键词	Physicochemical soil properties Soil CO2 fluxes Soil enzyme activity Soil nutrients Soil organic matter
ISSN号	1863-0650
DOI	10.1002/clen.201400478
英文摘要	Soil CO2 emissions are key components of global carbon cycling. Hence, knowledge of their drivers is important for estimating, and modifying, carbon storage pools. To extend knowledge of these drivers, results of a long-term (31-year) experiment in a rice-wheat rotation field in subtropical Central China were analyzed to determine effects on soil CO2 flux (F-CO2) of various fertilization practices and related environmental factors including soil organic matter (SOM), microbial biomass carbon (MBC), total nitrogen (TN), total phosphorus (TP), and total potassium (TK) contents; activities of three soil enzymes (acid phosphatase, urease, and catalase); and soil temperature, pH, cation exchange capacity (CEC), bulk density and porosity. The results clearly show that FCO2 was sensitive to changes in soil nutrient conditions under different long-term fertilization practices. Notably, it was significantly higher in plots receiving organic manure applications than in those receiving only chemical fertilizers (N, NP, and NPK) and unfertilized plots. Correlation analysis showed that F-CO2 was significantly correlated with the soil's SOM, TN, TP, and MBC contents, acid phosphatase and urease activities, and several physicochemical soil properties including pH, CEC, bulk density and porosity. However, no significant correlations were observed between F-CO2 and either TK content or catalase activity. The findings suggest that at given temperature and soil moisture contents, variations in soil CO2 emissions associated with the fertilization practices are strongly related to SOM, and the nutrient contents, microbial and enzyme activities, and physicochemical properties of the soil.
资助项目	National Natural Science Foundation of China[31100386] ; National Natural Science Foundation of China[31370529] ; State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau[K318009902-1415] ; cooperative project with International Plant Nutrition Institute[IPNI-HB-33]
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
语种	英语
出版者	WILEY-BLACKWELL
WOS记录号	WOS:000379942400015
内容类型	期刊论文
源URL	[http://202.127.146.157/handle/2RYDP1HH/52]
专题	中国科学院武汉植物园
通讯作者	Chen, Fang
作者单位	1.Minist Water Resource, Yangling, Peoples R China 2.Chinese Acad Sci China, Wuhan Bot Garden, Lab Aquat Bot & Watershed Ecol, Wuhan 430074, Peoples R China 3.Chinese Acad Sci, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling, Peoples R China 4.Benha Univ, Dept Soil Sci, Fac Agr, Toukh, Kalyoubia, Egypt 5.Hubei Acad Agr Sci, Inst Plant Protect & Soil Fertilizer, Wuhan, Peoples R China
推荐引用方式 GB/T 7714	Li, Zhiguo,Zhang, Guoshi,Chen, Fang,et al. Soil CO2 Emissions and Drivers in Rice-Wheat Rotation Fields Subjected to Different Long-Term Fertilization Practices[J]. CLEAN-SOIL AIR WATER,2016,44(7):867-876.
APA	Li, Zhiguo.,Zhang, Guoshi.,Chen, Fang.,Liu, Yi.,Hu, Cheng.,...&Wang, Jing.(2016).Soil CO2 Emissions and Drivers in Rice-Wheat Rotation Fields Subjected to Different Long-Term Fertilization Practices.CLEAN-SOIL AIR WATER,44(7),867-876.
MLA	Li, Zhiguo,et al."Soil CO2 Emissions and Drivers in Rice-Wheat Rotation Fields Subjected to Different Long-Term Fertilization Practices".CLEAN-SOIL AIR WATER 44.7(2016):867-876.