globalchange  > 气候变化事实与影响
DOI: 10.5194/hess-18-333-2014
Scopus记录号: 2-s2.0-84893151927
论文题名:
Nitrate leaching from intensive organic farms to groundwater
作者: Dahan O; , Babad A; , Lazarovitch N; , Russak E; E; , Kurtzman D
刊名: Hydrology and Earth System Sciences
ISSN: 10275606
出版年: 2014
卷: 18, 期:1
起始页码: 333
结束页码: 341
语种: 英语
Scopus关键词: Conventional agricultures ; Environmental pollutions ; Groundwater contamination ; Irrigation systems ; Liquid fertilizers ; Organic agriculture ; Percolating waters ; Solid organic matter ; Fertilizers ; Greenhouses ; Groundwater pollution ; Irrigation ; Leaching ; Nitrates ; Groundwater ; fertilization (reproduction) ; fertilizer application ; groundwater ; intensive agriculture ; leaching ; manure ; nitrate ; organic farming ; percolation ; pollution monitoring ; soil amendment ; vadose zone ; water quality
英文摘要: It is commonly presumed that organic agriculture causes only minimal environmental pollution. In this study, we measured the quality of percolating water in the vadose zone, underlying both organic and conventional intensive greenhouses. Our study was conducted in newly established farms where the subsurface underlying the greenhouses has been monitored continuously from their establishment. Surprisingly, intensive organic agriculture relying on solid organic matter, such as composted manure that is implemented in the soil prior to planting as the sole fertilizer, resulted in significant down-leaching of nitrate through the vadose zone to the groundwater. On the other hand, similar intensive agriculture that implemented liquid fertilizer through drip irrigation, as commonly practiced in conventional agriculture, resulted in much lower rates of pollution of the vadose zone and groundwater. It has been shown that accurate fertilization methods that distribute the fertilizers through the irrigation system, according to plant demand, during the growing season dramatically reduce the potential for groundwater contamination from both organic and conventional greenhouses. © Author(s) 2014.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/78342
Appears in Collections:气候变化事实与影响

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作者单位: Department of Environmental Hydrology and Microbiology, Zuckerberg Institute for Water Research, Ben-Gurion University of the Negev, Midreshet Ben-Gurion, Israel; Wyler Department of Dryland Agriculture, French Associates Institute for Agriculture and Biotechnology of Drylands, Ben-Gurion University of the Negev, Midreshet Ben-Gurion, Israel; Geological and Environmental Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel; Institute of Soil, Water and Environmental Sciences, Agricultural Research Organization, Volcani Center, Bet Dagan, Israel

Recommended Citation:
Dahan O,, Babad A,, Lazarovitch N,et al. Nitrate leaching from intensive organic farms to groundwater[J]. Hydrology and Earth System Sciences,2014-01-01,18(1)
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