基于子流域的北运河流域(北京段)畜禽养殖空间布局研究

根据北运河流域(北京段)畜禽养殖业污染特点及其粪便与农作物养分供求关系,采用养分平衡法对各子流域畜禽养殖粪便养分实际排放量、实际负荷量、主要作物最大养分需求量、作物所需畜禽粪便养分最大负荷量、畜禽养殖承载力进行了核算,结果表明北运河干流、沙河流域、温榆河干流、凉水河流域和蔺沟河流域的畜禽实际承载量已超过畜禽土地承载力,研究结果对于环境部门加强畜禽养殖污染防治和农业部门合理进行农业规划有重要参考意义.

Study onLivestock and Poultry Layout Based on Sub Basinof Beijing Beiyunhe River Basin

According to the characteristics of livestock and poultry pollution in BeiyunheRiver Basin and the relationship be-tween manure supply and crop nutrient demand,the actual emissions of livestock and poultry manure, the actual load of livestock and poultry manure, the largest nutrient demand of the main crops, the load capacity of livestock manure needed by crops, the ca-pacity of livestock and poultry in each sub basin were computed with nutrient balance method, which showed the actual capacity of livestock and poultry had exceeded the land capacity of livestock and poultry in the main stream of BeiyunheRiver Basin, Sha-heRiver Basin, the main stream of WenyuheRiver Basin, LiangshuiheRiver Basin and LingouheRiver Basin.The research's results had important reference value for the environmental department to strength the prevention and control of livestock and poultry ma-nure and agricultural sector to carry out rational agricultural plan.