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作 者:俞丹萍[1] 覃亚 潘洪明 单立楠[1] 徐捷[1] 李竺霖[1] 何云峰[1]
机构地区:[1]浙江大学环境与资源学院,杭州310058 [2]杭州博盛环保科技有限公司,杭州310014 [3]浙江省乐清市环境保护局柳市分局,浙江温州325600
出 处:《农业环境科学学报》2012年第11期2200-2206,共7页Journal of Agro-Environment Science
基 金:国家水体污染控制与治理科技重大专项(2008ZX07101-006)
摘 要:为定量地综合评价不同施肥模式下温室黄瓜种植的效益,建立了包括社会、经济和生态环境3个方面共9项指标的多因素二级评价指标体系。本研究采用模糊评判的方法,定量评判6种施肥模式(不施肥、常规化肥、等养分专用肥、等养分有机肥、等养分专用肥减量20%、等养分专用肥减量40%)下温室黄瓜种植的社会效益、经济效益以及生态环境效益,以期为受试地区温室黄瓜种植找到最优化的施肥模式。结果表明:仅考虑社会效益时,不施肥模式的社会效益最好,常规化肥施肥模式的社会效益最差;仅考虑经济效益时,不施肥模式的经济效益最差,而等养分专用肥减量20%模式和等养分专用肥模式的经济效益都较好;仅考虑生态环境效益时,不施肥模式和等养分专用肥减量40%模式的生态环境效益均较好,而常规化肥模式不具有好的生态环境效益;而考虑综合效益时,等养分专用肥减量20%模式的综合效益最好,6种施肥模式中综合效益最差的是常规施肥模式。因此,应在受试地区大力推广等养分专用肥减量20%施肥模式,减少常规化肥的施用,以期获得较好的社会效益、经济效益与生态环境效益。Based on the problems caused by the irrational fertilization,the effects of 6 modes of fertilizer application(none fertilization,chemical fertilizers,special fertilizers,organic manure,special fertilizers minus 20%,special fertilizers minus 40%)on the greenhouse cucumber were studied.The fuzzy comprehensive evaluation method was used to get the best social,economic and ecological benefits.The results obtained were as follows:none fertilization mode got the best social benefits,special fertilizers mode and special fertilizers minus 20% mode got better economic benefit than others,while none fertilization mode and special fertilizers minus 40% mode got better ecological benefit than other modes.In addition,the fuzzy comprehensive evaluation showed that the best mode of the fertilization was special fertilizers minus 20% mode,and the worst mode was chemical fertilizers.Therefore,the promotions should be made to practice the special fertilizers minus 20% mode of fertilization in the region in order to obtain better social,economic and environmental benefits to local farmers.
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