安徽省畜禽粪污时空特征及产生物天然气潜力研究

从县级尺度上，评估安徽省 103个县（区）的畜牧业（包括猪、牛、羊和家禽）粪污资源潜力，旨在为安徽省畜禽粪污资源化利用和生物天然气产业发展提供参考。采取文献调研和实地调查相结合的方法，收集安徽省各县(区)近年来畜禽粪污的资源总量、可收集量、可利用量等数据。利用能值潜力估算模型估算各县区生猪、肉牛、奶牛、羊、蛋鸡和肉鸡的粪污产生量，估算畜禽粪污产生物天然气潜力，解析其时空分布特征。结果表明：2014—2017年安徽省畜禽粪污资源总量呈上升趋势，2017年安徽省畜禽粪污资源量达到0.6 亿t，不同区域之间畜禽粪污资源量差异显著，皖北、皖中、皖南的粪污资源量占比分别为56.99%、31.29%和11.72%。利用畜禽粪污产生物天然气潜力达到19 亿m³，开发潜力大于5万 m³·km^-2的县区有16个，潜力较大的县区主要集中于皖中及皖北地区。安徽省畜禽粪污“转废为宝”潜力巨大，发展生物天然气的资源禀赋条件优异，可开发潜力较大，安徽具备产业化发展生物天然气的资源基础。

Study on the temporal and spatial characteristics of livestock and poultry manure and its potential for biogas production in Anhui Province

The potential of manure resources in animal husbandry (including pigs, cattle, sheep and poultry) in 103 counties (districts) of Anhui Province was evaluated at the county level, aiming to provide a reference for the resource utilization of livestock manure and the development of biogas industry in Anhui Province. The total resources, collectible amount and available amount of livestock manure in recent years in Anhui Province have been collected by using the methods of literature research and site investigation .The energy potential estimation model was used to estimate the amount of feces produced by pigs, beef cattle, cows, sheep, layers, and broilers, to estimate the potential of biogas produced by livestock and poultry manure, then analyzed the temporal and spatial distribution characteristics.The results showed that: from 2014 to 2017, the total amount of livestock manure resources in Anhui Province was on the rise. In 2017, the amount of livestock and poultry manure resources in Anhui Province reached 60 million tons. There were significant differences in the amount of livestock manure resources between different regions. The proportion of the amount of livestock and poultry waste resources in northern, central and southern Anhui was 56.99%, 31.29% and 11.72% respectively.The potential of biogas produced by livestock and poultry manure was 1.9 billion m³, and there were 16 counties with a development potential