三峡库区生态屏障区畜禽养殖场污染风险评估及其治理对策研究

THE POLLUTION RISK ASSESSMENT AND COUNTERMEASURES RESEARCH ON LIVESTOCK FARMS IN ECOLOGICAL BARRIER ZONE OF THREE GORGES RESERVOIR

三峡库区生态屏障区畜禽养殖场的环境管理和污染治理十分薄弱,所以对畜禽粪便资源化处理的研究特别重要。为了了解三峡库区的水质和土质现状,排除养殖场粪便对三峡库区水体和土壤的污染风险,本文以丰都某养牛场为对象,评估养殖场污染风险,采样分析粪便养分及污染物含量,调查周边土壤和水质质量,根据2008—2013年该养牛场的规模,对粪便量、养分含量及污染物含量进行估算。结果表明,该养牛场周边环境污染严重,粪便排放量随养殖规模逐年增加,对环境的压力也逐年加大。通过分析,提出了针对性的粪便处理方法。

The environmental management and pollution abatement about livestock and poultry farms of ecological barrier zone in the Three Gorges Reservoir area are very unsubstantial. Taking a cattle farm in Fengdu as the object,this paper accessed the pollution risk of the livestock and poultry farms,sampled and analysed the manure nutrient and the content of pollutants,and investigated the soil and water quality around. According to the scale of the cattle farm from 2008 to 2013,the amount of manure,nutrient content and the content of pollutants were estimated. The results showed that this cattle farm surrounding had serious environment pollution. The Manure emissions increased with the expansion of livestock and poultry farms year by year,so the environmental pressure also increased year by year. The study put forward a target method of manure treatment through the analysis.