| Aiming at the insufficient research on the structure,function,and development mode of different types of ecological family farms in Inner Mongolia,This thesis analyzes the energy value structure,material cycle,energy flow,ecosystem service value,and economic benefits of typical family farms in Inner Mongolia,to clarify the structure,function,development mode and existing problems of ecological family farms in Inner Mongolia,comprehensively evaluate different types of family farms in Inner Mongolia,and analyze their influencing factors to provide theoretical basis and suggestions for improving farmers’income and building the construction and development of ecological and green family farm industry in Inner Mongolia.The results showed that:(1)In this study,the net energy value yield rate of different types of family farms was closely related to their business scale and type,as well as the main functions of the farm,and the net energy value yield rate in this study was the highest in the family farm,the planting family farm was better,the horticultural family farm was the lowest,and the energy value performance was the best in the combination of planting and breeding family farm.(2)In terms of material flow,the family farm with combined planting and breeding performed the best,meeting the basic production of the farm without excessive nutrient surplus,and the production-to-investment ratio of nitrogen,phosphorus,and potassium was the highest among the three types of family farms,followed by horticultural family farms,and the performance of planting family farms was poor.(3)In terms of the value stream,horticultural family farms had the highest net income and comprehensive material utilization efficiency per hectare,followed by planting-breeding family farms and planting family farms(4)In terms of the value of ecosystem services,family farms with combined farming and breeding are the highest,followed by planting family farms and horticultural family farms.(5)From the perspective of greenhouse gas emission intensity,there were significant differences between planting family farms and plant-breeding combined family farms and horticultural family farms,and the emission intensity was the highest,and the warming potential and daily emissions of N2O and CH4 of planting-breeding family farms were lower than those of the other two types of family farms.(6)The potential consumption risks of agricultural products in the three family farms were as follows:planting family farms were healthier,planting family farms had potential risks,and horticultural family farms had higher risks.Regarding soil enzyme activity,horticultural family farms had the highest urease activity,organic matter content,and strong soil nitrogen supply capacity.The soil sucrase activity was the highest in the farms of the combined farming type,and there was no significant difference in the soil phosphatase activity of the three types of family farms(7)In terms of analytic hierarchy:In the evaluation of the overall indicators of family farms,the value of ecosystem services of family farms is the most important,followed by value stream,material flow is more important,and energy value is less important.The combined performance of the three family farms is that the combined farming family farm is better than the horticultural family farm and better than the planting family farm. |