不同土地利用类型化肥施用环境成本核算

Environmental Costs Acconnting of Chemical Fertilizer Application on Different Land Use Types

根据化肥施用的污染物产生剂量,采用能值分析理论和伤残调整生命年核算方法,计算了不同土地利用类型化肥施用的环境成本.结果表明,2015年,不同土地利用类型单位面积化肥施用环境成本由大到小的顺序为:设施作物(679.33元/hm^2)、露地蔬菜(532.74元/hm^2)、粮食经济作物(409.41元/hm^2).郑州市不同土地利用类型总环境成本为10 922.77万元,其中粮食经济作物(6 470.44万元)最大,其后依次为露地蔬菜(3 605.58万元)和设施作物(846.75万元).

Based on the analysis of pollution dose of chemical fertilizer,the environmental costs of chemical fertilizer application of different land use types were estimated by means of the emergy evaluation theory and assessment method of disability adjusted life years in 2015 of Zhengzhou city. The results showed that per unit area of environmental costs of different land use types in 2015 from largest to small which were greenhouse crops was 679.33 yuan per hectare,outdoor vegetable was 532.74 yuan per hectare,food and cash crops was 409.41 yuan per hectare. The environmental costs of chemical fertilizer application in Zhengzhou city was 109.22 million yuan in which the order of environmental costs was the food and cash crops of 64.70 million yuan were the largest,followed by the outdoor vegetables of 36.05 million yuan and the greenhouse crops of 8.47 million yuan.land use typeschemical fertilizerenvironmental pollutionenergy costs analysisdisability ad-