Responses of CH4 and N2O fluxes to land-use conversion and fertilization in a typical red soil region of southern China

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 城市与区域生态国家重点实验室

	Responses of CH4 and N2O fluxes to land-use conversion and fertilization in a typical red soil region of southern China
	Liu, Guohua; Wu, Xing; Liu, Huifeng; Zheng, Xunhua; Lu, Fei; Wang, Shuai; Li, Zongshan; Fu, Bojie
刊名	SCIENTIFIC REPORTS
	2017-09-05
卷号	7 期号:2 页码:-
关键词	Information And Communication Technologies Environmental Movement E-participation Sustainable Development China
英文摘要	Land-use conversion and fertilization have been widely reported as important management practices affecting CH4 and N2O fluxes; however, few long-term in situ measurements are available after land-use conversion from rice paddies to upland cultivation, especially those including the initial stages after conversion. A 3-year field experiment was conducted in rice paddies and a newly converted citrus orchard to measure CH4 and N2O fluxes in response to land-use conversion and fertilization in a red soil region of southern China. Annual CH4 and N2O emissions averaged 303.9 kg C ha(-1) and 3.8 kg N ha(-1), respectively, for the rice paddies over three cultivation years. Although annual N2O emissions increased two-to threefold after the conversion of rice paddies to citrus orchard, the substantial reduction in CH4 emissions and even shift into a sink for atmospheric CH4 led to significantly lower CO2-eq emissions of CH4 and N2O in the citrus orchard compared to the rice paddies. Moreover, distinct CH4 emissions were observed during the initial stages and sustained for several weeks after conversion. Our results indicated that the conversion of rice paddies to citrus orchards in this region for higher economic benefits may also lead to lower aggregate CH4 and N2O emissions.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/39092]
专题	生态环境研究中心_城市与区域生态国家重点实验室
推荐引用方式 GB/T 7714	Liu, Guohua,Wu, Xing,Liu, Huifeng,et al. Responses of CH4 and N2O fluxes to land-use conversion and fertilization in a typical red soil region of southern China[J]. SCIENTIFIC REPORTS,2017,7(2):-.
APA	Liu, Guohua.,Wu, Xing.,Liu, Huifeng.,Zheng, Xunhua.,Lu, Fei.,...&Fu, Bojie.(2017).Responses of CH4 and N2O fluxes to land-use conversion and fertilization in a typical red soil region of southern China.SCIENTIFIC REPORTS,7(2),-.
MLA	Liu, Guohua,et al."Responses of CH4 and N2O fluxes to land-use conversion and fertilization in a typical red soil region of southern China".SCIENTIFIC REPORTS 7.2(2017):-.