新疆生产建设兵团典型团场畜禽粪污土地承载力测算与分析

Calculation and Analysis of Land Carrying Capacity of Livestock Manure in the Typical Corps of Xinjiang Production and Construction Corps

为探究新疆生产建设兵团(以下简称兵团)畜禽粪污土地承载力现状,收集2019年兵团39个典型农牧团场的相关数据资料,计算各团场畜禽粪污的土地承载力指数,分析各典型团场畜禽粪污土地承载力差异。结果表明,以氮测算,39个典型团场中仅188团畜禽粪污量超过了农田的承受能力(畜禽粪污的土地承载力指数>1);以磷测算,仅104团畜禽粪污的土地承载力指数>1。总体上,39个典型团场中仅有2个近郊环境敏感团场有潜在的氮磷污染风险。研究结果提示,兵团绝大部分团场未来养殖发展潜力巨大,但应该加强兵团近郊环境敏感团场的畜禽粪污土地承载力测算和养殖大团的养殖调整工作。

To investigate the current status of land carrying capacity of livestock and poultry manure in Xinjiang Production and Construction Corps(XPCC),the relevant data of 39 typical farms of XPCC in 2019 were collected,to calculate the land carrying capacity index of livestock and plultry manure of each corp and analyse the capacity differences of each typical corps.The results showed that the amount of manure in Farm 188,which was one of 39 typical farms,exceeded the carrying capacity of farmland(the land carrying capacity index of livestock manure was>1)interms of N content,while the land carrying capacity index of Farm 104 was>1 based on P content.Overall,only 2 environmental sensitive farms out of 39 typical farms have the potential risk of N and P pollution.The study reveals that most corps in the XPCC have great potential for future development of breeding.However,it is necessary to strengthen the calculation of the carrying capacity of livestock and poultry manure for the environmental sensitive farms,and the big farms should adjust their breeding accordingly.