Bio:
Email: 2715475297@qq.com
张奎(1992—),男,博士,农艺师,从事土壤与肥料研究;2715475297@qq.com
为合理利用畜禽粪尿资源和提高肥料利用率,采用排泄系数法估算了山东省德州市2022年畜禽粪尿资源总量及养分总量,分析了不同区域和不同种类畜禽粪尿养分替代化肥的潜力。结果表明:2022年,德州市畜禽粪尿资源总量为9 786.4 kt,其中猪、牛的粪尿资源量较大,分别为3 562.7、4 945.8 kt,羊和家禽的粪尿资源总量为1 277.9 kt;畜禽粪尿养分总量为93.3 kt,N、P2O5、K2O养分量分别为44.1、11.1、38.1 kt,其中猪、牛的粪尿养分量较大,分别为23.8、47.2 kt,羊和家禽的粪尿养分总量为22.3 kt;畜禽粪尿资源量及养分量的分布均呈现明显的地域性,全市不同地区畜禽粪尿资源及养分量不同;2022年全市畜禽粪尿养分理论替代化肥的潜力为32.91%,其中牛粪尿的理论替代潜力最大(16.66%),猪粪尿的次之(8.40%),家禽粪尿的最小(2.93%)。德州市拥有较为丰富的畜禽粪尿资源,积极促进畜禽粪尿资源的有效利用,将有助于推动德州市农业的可持续发展。
To facilitate the rational utilization of livestock and poultry manure and urine resources and enhance fertilizer use efficiency, the excretion coefficient method is employed to estimate the total quantity of livestock and poultry manure and urine resources and nutrient content in Dezhou City, Shandong Province for the year 2022. The potential of manure and urine nutrients from different regions and types to substitute chemical fertilizers is also analyzed. The results indicate that in 2022, the total manure and urine resources in Dezhou City reached 9 786.4 kilotons (kt). Pigs and cattle contributed the largest shares, with 3 562.7 kt and 4 945.8 kt respectively, while the combined manure and urine from sheep and poultry amounted to 1 277.9 kt. The total nutrient content (N + P2O5 + K2O) of the manure and urine was 93.3 kt, comprising 44.1 kt nitrogen (N), 11.1 kt phosphorus pentoxide (P2O5), and 38.1 kt potassium oxide (K2O). Cattle manure and urine contained the highest nutrient load (47.2 kt), followed by pig (23.8 kt). Sheep and poultry manure and urine together contributed 22.3 kt. Both the quantity of manure and urine resources and their nutrient content exhibited distinct regional variations across the city. The theoretical potential for manure and urine nutrients to replace chemical fertilizers in 2022 was estimated at 32.91%. Cattle manure and urine showed the highest substitution potential (16.66%), followed by pigs manure and urine (8.40%), while poultry manure and urine had the lowest (2.93%). Dezhou City possesses substantial livestock and poultry manure and urine resources. Actively promoting their effective utilization will significantly contribute to advancing sustainable agricultural development in the region.
德州市统计局, 国家统计局德州调查队. 德州统计年鉴-2023[J/OL]. 德州统计年鉴, 2023(26)[2025-01-19]. http://dztj.dezhou.gov.cn/n54289016/n54289061/n54289125/c87039976/part/87039981.pdf.
德州市统计局, 国家统计局德州调查队. 德州统计年鉴-2019[J/OL]. 德州统计年鉴, 2019(22)[2025-01-19]. http://dztj.dezhou.gov.cn/n54289016/n54289061/n54289125/c53173660/part/53173665.pdf.