农业环境科学学报2026，Vol.45Issue(4)：869-882,14.DOI:10.11654/jaes.2025-0836
宁夏农村厕所粪污养分与土壤-作物系统耦合利用研究
Research on the utilization of nutrients from rural toilet feces with the soil-crop system in Ningxia
摘要
Abstract
In order to accurately evaluate the resource utilization potential of rural toilet feces in Ningxia Autonomous Region and its matching relationship with the regional crop nutrient demand,and to provide a scientific basis for regional nutrient cycle optimization and land carrying capacity regulation,this paper systematically measured the excretion of rural human manure(N,P,K)and the nutrient demand of crop manure in Ningxia based on the public statistics of the whole region(2021-2025)and the field sampling data of typical areas,and innovatively applied the human equivalent method to evaluate the land use adaptation intensity.The calculation results showed that the annual manure production and discharge of rural flushing toilets in Ningxia was 9 410 500-14 995 500 m3,and the solid manure production and discharge of dry toilets reached 365 100-601 400 t,which could provide 6 755.91-10 839.03,415.65-673.68 t and 3 232.87-5 186.96 t of N,P and K nutrients,respectively.The demand for N and P of manure in regional crops was as high as 102 377.17 t and 16 854.32 t,and the substitution rates of N,P and K nutrients for chemical fertilizers were only 4.95％-7.94％,1.03％-1.67％and 12.11％-19.43％.The N and P bearing capacity of soil(141.98-227.89 person equivalents·hm-2·season-1 and 375.71-408.55 person equivalents·hm-2·season-1)significantly exceeded the recommended value of land use adaptation.The study revealed that the supply of human feces and urine in Ningxia was far from meeting the demand(especially N and P).In order to achieving the sustainable development of agricultural system,it is feasible to establish an integrated management system for rural human waste and livestock manure,coupled with the implementation of precise nutrient management strategies to maximize their resource potential.关键词
农村厕所粪污/资源化潜力/土壤利用/作物养分需求Key words
rural toilet feces/resource utilization potential/soil utilization/crop nutrient requirements分类
资源环境引用本文复制引用
李海鹏,彭锦星,黄治平,申锋,王强,刘芳..宁夏农村厕所粪污养分与土壤-作物系统耦合利用研究[J].农业环境科学学报,2026,45(4):869-882,14.基金项目
国家重点研发计划项目(2023YFD1701803) （2023YFD1701803）
中国农业科学院院级基本科研业务费(Y2025JC04)National Key Research and Development Program of China(2023YFD1701803) （Y2025JC04）
Basic Scientific Research Fund at the Institute Level of the Chinese Academy of Agricultural Sciences(Y2025JC04) （Y2025JC04）
