陈绍华,杜冬云.清江流域畜禽粪便产生量估算及环境效应分析[J].中南民族大学学报自然科学版,2017,(2):15-20
清江流域畜禽粪便产生量估算及环境效应分析
Estimation of Production Amount and Environmental Effect of Livestock Manurein Qingjiang Basin
  
DOI:
中文关键词: 清江流域  畜禽养殖  环境效应  耕地负荷
英文关键词: Qingjiang basin  livestock and poultry breeding  environmental effect  farmland load
基金项目:湖北省自然科学基金资助项目(2015CFC888);中央高校基本科研业务专项(CZW15075,CZW15037)
作者单位
陈绍华,杜冬云 中南民族大学 资源与环境学院 湖北省重金属废水处理与回用工程技术研究中心武汉 430074 
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中文摘要:
      依据 2008~2013年清江流域畜禽养殖数据,采用排泄系数法估算了畜禽粪便量,并对各地区畜禽粪便对耕地和水环境的污染现状进行了评价.结果表明:2008~2013年畜禽粪便耕地负荷平均为20.30 t/hm2,对环境已呈现一定的影响,按照目前增长趋势,到 2016 年底清江流域畜粪便负荷将接近限值 30 t/hm2,此时畜禽养殖对当地的环境将呈现较严重的影响.各种污染物中年均产生量最大的是COD 223057.59 t,占污染物产生总量的39.72%,最小的是NH2-N 18433.59 t,仅占污染物产生总量的3.48%.各种污染物因子中对水体影响最大的是TN、TP,等标排放率分别为40.43%和34.58%.畜禽养殖业中生猪、羊、牛和家禽养殖对水体污染的贡献率分别为55.83%、26.41%、14.06%和3.68%.在清江流域10个县市中,对水体污染的贡献最大的是宜都县,贡献为16.33%,其次依次为长阳县其余依次为长阳县、恩施市、利川市、巴东县、建始县、宣恩县、咸丰县、五峰县和鹤峰县,其对水体污染的贡献分别为14.68%、13.24%、11.69%、10.72%、9.90%、6.78%、6.66%、5.20%和4.80%.
英文摘要:
      Based on the livestock data in Qingjiang basin from 2008 to 2013,the amount of livestock manure were calculated by using the excretion coefficient method, and their environmental effect on farmland and water was evaluated. The results indicated that the average farmland pollution loading was 20.30 t/hm2 during 2008 to 2013, already showing some environmental effect. According to the present trend, the loading would reach 30 t/hm2 in 2016, which might affect environment seriously. Among all the pollutants, the amount of COD (223057.59 t) was the most, accounting for 39.72% of the total. The amount of ammonia nitrogen (18433.59 t) was least, accounting for 3.48% of the total. Among the various pollutants, TN and TP had most significant influence on water environment, with equal-standard discharge rate of 40.43% and 34.58%, respectively. The contribution of pig, sheep, cow and poultry to water pollution was 55.83%, 26.41%, 14.06% and 3.68%, respectively. Among the ten counties and cities in Qingjiang basin, Yidu City contributed most to water pollution, with a rate of 16.33%, followed by Changyang Country, Enshi City, Lichuan City, Badong Country, Jianshi Country, Xuan’en Country, Xianfeng, Wufeng and Hefeng Country, with the corresponding contribution being 14.68%, 13.24%, 11.69%, 10.72%, 9.90%, 6.78%, 6.66%, 5.20% and 4.80%, respectively.
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