Research Of Typical Circular Economy Courtyard Development Mode In Karst Mountainous Rural

The type of recycling economy courtyard is effective to solve the prombles–weaking ecological environment, complexing natural conditions, Contradiction betweenhuman and land and social economy hysteresis-in Karst Rural.It’s small, efficient andflexible. We can choose different model on the basis of the different natural resources toobtain benefits of social,economic and ecological.In order to beautify yard,developproduction, rise incomes and protect environment,we construct biogas digester, by usingmethane as a link, banding together cultivation and breeding and embellishing yard andrebuilding sty, development of production, rising incomes and environmental protection.Choosing WuLong County as the research area, the research idea is to investigatethe current status-analysis of the problem-optimization of the development-proposednew mode-analysis the new model-evaluation the newmode.First, by investigating the type of the geomorphology of the study area, the humanliving environment, supporting infrastructure, agricultural production, and resourceendowments, it will analyze problems, and dig out optimization ideas and direction forthe problems.Secondly, give out the recycling economy courtyard development mode base ondifferent karst types, and analysis the costs and the profit of vegetables recyclingplanting pattern and Karst five supporting facility pattern. Vegetables recycling plantingpattern every year on average net income is5673.78yuan, and Karst five supportingfacility pattern of pure benefit each year is8352.78yuan.Furthermore, by establishing there grades of evaluation index system of economycourtyards, screened three qualitative indicators and10quantitative indicators. It sets upthe indicators of evaluation criteria.After using AHP-fuzzy comprehensive evaluationmethod to the cost-effectiveness evaluation of two kinds of modes, the evaluationresults show that, the grade of “better” and “good” take97.8%, only2.2%evaluation ispoorer about vegetables recycling planting pattern.About76.9%evaluation results isgood of karst five supporting facility pattern, which illustrate the benefit is good. Finally, the research comes to following conclusions:(1)Circular economy courtyard model can improve the fertility of Karst mountainsoil, increase soil organic matter, and reduce pesticide use and CO2emissions. It willpromote rural development, high-quality pollution-free agricultural and sidelineproducts, will be suitable for the development of rural areas in karst mountainous areas.(2) The different economic, social and resource conditions will lead to differencesin the courtyard development model, the income for farmers also will be different.Different modes will also lead to different emphases of social and ecological impact.Right development mode should be chosen according to the regional human livingenvironment, supporting infrastructure, industrial structure, and resource advantages ofdifferent options for the regions. It will help to low down cost inputs, and increasefarmers’ income; will help to promote the development of rural production and improvethe rural ecological environment.