江苏省畜禽养殖污染压力与循环农业发展潜力分析

发布时间：2018-04-24 13:46

本文选题：畜禽养殖 + 污染压力　；参考：《江苏农业科学》2017年18期

【摘要】：基于土壤表观养分平衡理论对江苏省2001—2013年畜禽养殖污染压力与循环农业潜力进行测度,结果表明,13年间除镇江市外,全省及各地市农田土壤氮素承载压力指数均大于1,但2005年以后呈现出缓和态势,并具有典型的地域特征。全省及各地畜禽粪便氮素排放量占农作物生长氮素需求量的比重均小于1,发展循环农业的潜力较大,但畜禽粪便排放和化肥施用所产生氮素投入已大大超过农作物生长所需的氮素总量,农田土壤氮素盈余现象突出,苏北地区尤为严峻。因此,针对性地提出统筹规划、依法治理,全面提高畜禽养殖污染防治水平,促进种养产业联动、推动循环农业发展等政策建议。
[Abstract]:Based on the theory of soil apparent nutrient balance, the pollution pressure of livestock and poultry breeding and the potential of circular agriculture in Jiangsu Province from 2001 to 2013 were measured. The results showed that in the past 13 years, Zhenjiang City was the exception of Zhenjiang City. The nitrogen bearing pressure index of farmland soil was higher than 1 in the whole province and every city, but it showed a tendency of relaxation after 2005 and had typical regional characteristics. Nitrogen emissions from livestock and poultry feces in the whole province and all over the province account for less than 1% of crop growth nitrogen demand, and there is a great potential for the development of circular agriculture. However, the nitrogen input produced by manure discharge and fertilizer application has greatly exceeded the total nitrogen required for crop growth, and the surplus of soil nitrogen in farmland is prominent, especially in northern Jiangsu. Therefore, some policy suggestions such as overall planning, managing according to law, improving the level of pollution prevention and control of livestock and poultry breeding, promoting the linkage of breeding and raising industry, and promoting the development of circular agriculture are put forward.
【作者单位】：淮阴师范学院经济与管理学院;江苏省统计局淮安调查局;
【基金】：国家社会科学基金青年科学基金(编号:16CJY052)
【分类号】：F323.22;X713

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