作　　者： ; ; ; ;

机构地区： 郑州航空工业管理学院土木建筑工程学院资源与环境技术研究所

出　　处： 《农业环境科学学报》 2008年第5期2105-2108,共4页

摘　　要： 以位于黄河中下游的河南省长垣县作为研究区域,结合当地规模化养殖小区的畜禽饲养量、排污量以及作物需肥量,对畜禽粪便的耕地最大污染负荷量进行了估算,并与当地畜禽粪便的实际负荷量进行比较,对现有养殖规模条件下的环境风险进行了评价。结果表明,2006年该县仅规模化畜禽养殖全年产生的粪尿合计13.5万t,采用耕地畜禽粪便负荷预警值对畜禽养殖污染进行评价的结果是除张三寨乡和丁栾镇以外,该县其他各乡镇都已受到畜禽粪便一定程度的污染。从耕地环境保护角度来看,总体上该县规模化养殖还有一定的发展空间,但要合理规划,以降低环境风险。今后应该以区域环境污染负荷为基础,建立健全区域环境风险评价及预警机制,以此为依据来发展规模化养殖。 For the purpose of environment protection and reasonable development of scale breeding, Changyuan county in Henan Province, which is situated by the middle and lower reaches of Huanghe River, was taken to be studied. In this paper, the maximum waste loading of farmland was estimated through the breeding numbers, respective excretive coefficients, and the crop fertilizer. By comparing the actual load of livestock manure with the maximum admissible load, environmental risk of actual breeding scale in each community was evaluated. The resuits showed that there were 1.35×10^5 tons livestock manure from scale breeding in 2006. The assessment for breeding pollution was gone with the pre-warning value, and the result showed that most communities in the county were polluted on some certain except the towns of Zhangsanzhai and Dingluan. There were certain developing spaces for scale breeding in the county, but should plan reasonably for reducing the environmental risk. For the future, environment risk assessment and the pre-warning mechanism, which was as the basis to develop the scale breeding, should be established based on the waste load of district environment.

关 键 词： 规模化养殖 畜禽粪便 污染负荷 风险评价

领　　域： [环境科学与工程]