干旱区生态环境知识资源中心(Arid): Nitrate in shallow groundwater in typical agricultural and forest ecosystems in China,2004-2010

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	Nitrate in shallow groundwater in typical agricultural and forest ecosystems in China,2004-2010
	Zhang Xinyu; Xu Zhiwei; Sun Xiaomin; Dong Wenyi; Deborah Ballantine
来源期刊	Journal of Environmental Sciences
ISSN	1001-0742
出版年	2013
卷号	25 期号:5 页码:1007-1014
英文摘要	The nitrate-nitrogen(NO_ 3~-N) concentrations from shallow groundwater wells situated in 29 of the Chinese Ecosystem Research Network field stations,representing typical agroand forest ecosystems,were assessed using monitoring data collected between 2004 and 2010.Results from this assessment permit a national scale assessment of nitrate concentrations in shallow groundwater,and allow linkages between nitrate concentrations in groundwater and broad land use categories to be made.Results indicated that most of the NO_ 3~--N concentrations in groundwater from the agroand forest ecosystems were below the Class 3 drinking water standard stated in the Chinese National Standard:Quality Standard for Ground Water(≤ 20 mg/L).Over the study period,the average NO_ 3~--N concentrations were significantly higher in agro-ecosystems(4.1 0.33 mg/L) than in forest ecosystems(0.5 0.04 mg/L).NO_ 3~--N concentrations were relatively higher(> 10 mg N /L) in 10 of the 43 wells sampled in the agricultural ecosystems.These elevated concentrations occurred mainly in the Ansai,Yucheng,Linze,Fukang,Akesu,and Cele field sites,which were located in arid and semiarid areas where irrigation rates are high.We suggest that improvements in N fertilizer application and irrigation management practices in the arid and semi-arid agricultural ecosystems of China are the key to managing groundwater nitrate concentrations.
英文关键词	Chinese Ecosystem Research Network shallow groundwater agricultural forest ecosystems nitrate concentration
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:4829656
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335201
作者单位	Zhang Xinyu, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Key Laboratory of Ecosystem Network Observation and Modelling, Chinese Academy of Sciences, Beijing 100101, China.; Xu Zhiwei, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Key Laboratory of Ecosystem Network Observation and Modelling, Chinese Academy of Sciences, Beijing 100101, China.; Sun Xiaomin, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Key Laboratory of Ecosystem Network Observation and Modelling, Chinese Academy of Sciences, Beijing 100101, China.; Dong Wenyi, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Key Laboratory of Ecosystem Network Observation and Modelling, Chinese Academy of Sciences, Beijing 100101, China.; Deborah Ballantine, National Institute of Water and Atmospheric Research, Hamilton, Lanarkshire New Zealand.
推荐引用方式 GB/T 7714	Zhang Xinyu,Xu Zhiwei,Sun Xiaomin,et al. Nitrate in shallow groundwater in typical agricultural and forest ecosystems in China,2004-2010[J],2013,25(5):1007-1014.
APA	Zhang Xinyu,Xu Zhiwei,Sun Xiaomin,Dong Wenyi,&Deborah Ballantine.(2013).Nitrate in shallow groundwater in typical agricultural and forest ecosystems in China,2004-2010.Journal of Environmental Sciences,25(5),1007-1014.
MLA	Zhang Xinyu,et al."Nitrate in shallow groundwater in typical agricultural and forest ecosystems in China,2004-2010".Journal of Environmental Sciences 25.5(2013):1007-1014.