干旱区生态环境知识资源中心(Arid): Variation and driving factors of nitrous oxide emissions from irrigated paddy field in the arid and semiarid region

Arid

	Variation and driving factors of nitrous oxide emissions from irrigated paddy field in the arid and semiarid region
	Zhang Qingwen; Zhang Hui; Liu Xingren; Zhang Aiping; Xiao Meijia; Yang Zhengli
来源期刊	International Soil and Water Conservation Research
ISSN	2095-6339
出版年	2018
卷号	6 期号:3 页码:245-252
英文摘要	Agricultural pollution source as Nitrous oxide (N_2O) emission from irrigated paddy field as affected by overuse of chemical fertilizer application and flooding irrigation is the primary anthropogenic source of nitrogen (N) losses in the Ningxia irrigation district. The emissions variation and driving factors of N_2O emission in the large irrigation districts needs much more investigation. A static chamber-gas chromatograph method was conducted to quantify N losses from a paddy field in Lingwu Farm during 2009- 2010. Three nitrogen (N) treatments were conducted, including the conventional N application rate of 300 kg ha~(-1) (N300), the reducing N application rate of 240 kg ha~(-1) (N240) and control plot (N0). The N_2O emissions due to combined effects of the fertilizer application and flood irrigation after winter dry follow was 2.86-3.27 kg ha~(-1) in N300. The flood irrigation at the beginning of the rice transplanting promotes N_2O emissions due to nitrification-denitrification of a richer N source provided by the N fertilizer accumulation of soil NH_4~+ and NO_3~-. During the rice growth stage when the paddy field was submerged, N_2O emission was very low while intermittent irrigation before tillering and the maturation stages, frequent alteration of dry and wet soil condition enhance N_2O emission. The reducing N fertilizer application improved the recovery rate in rice and resulted in a less N_2O emission from irrigated paddy field in the arid and semiarid region while keeping the rice yield.
英文关键词	N_2O emission Irrigated paddy field Flood irrigation Anthropogenic-alluvial alkaline soil
类型	Article
语种	英语
开放获取类型	Other Gold
收录类别	CSCD
WOS研究方向	Life Sciences & Biomedicine - Other Topics
CSCD记录号	CSCD:6321258
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335996
作者单位	Zhang Qingwen, Agricultural Clean Watershed Research Group, Institute of Environment and Sustainable Development in Agriculture, CAAS, Beijing 100081, China.; Liu Xingren, Agricultural Clean Watershed Research Group, Institute of Environment and Sustainable Development in Agriculture, CAAS, Beijing 100081, China.; Zhang Aiping, Agricultural Clean Watershed Research Group, Institute of Environment and Sustainable Development in Agriculture, CAAS, Beijing 100081, China.; Xiao Meijia, Agricultural Clean Watershed Research Group, Institute of Environment and Sustainable Development in Agriculture, CAAS, Beijing 100081, China.; Yang Zhengli, Agricultural Clean Watershed Research Group, Institute of Environment and Sustainable Development in Agriculture, CAAS, Beijing 100081, China.; Zhang Hui, Ningxia Vocational and Technical College, Yinchuan, Ningxia 750002, China.
推荐引用方式 GB/T 7714	Zhang Qingwen,Zhang Hui,Liu Xingren,et al. Variation and driving factors of nitrous oxide emissions from irrigated paddy field in the arid and semiarid region[J],2018,6(3):245-252.
APA	Zhang Qingwen,Zhang Hui,Liu Xingren,Zhang Aiping,Xiao Meijia,&Yang Zhengli.(2018).Variation and driving factors of nitrous oxide emissions from irrigated paddy field in the arid and semiarid region.International Soil and Water Conservation Research,6(3),245-252.
MLA	Zhang Qingwen,et al."Variation and driving factors of nitrous oxide emissions from irrigated paddy field in the arid and semiarid region".International Soil and Water Conservation Research 6.3(2018):245-252.