On Construction of Supply Chain System for China's Modern Agricultural Products

In view of drawbacks in supply chain of China's traditional agricultural products,this paper proposed building supply chain system for modern agricultural products: taking informationization as basis,channel system as core,organization system as support,and service system and safety system as guarantee,to promote high efficient operation of the supply chain system. The channel system stresses alliance and integration of channel system,informationization of channel management,and terminalization of channel operation; the organization system stresses organization,large scale,group,and brand of participant entities; service system stresses construction of service means,service platform,and operation mechanism; safety system stresses building quality safety based agricultural product supply chain management mode. In order to ensure high efficient operation of supply chain for modern agricultural products,it is required to straighten out supply chain management system,actively cultivate core enterprises of supply chain,strengthen information construction of supply chain,select suitable supply chain mode,and improve benefit allocation mechanism.

Industrialized Development Models of Agricultural Scientific and Technological Achievements

Industrialization of agricultural scientific and technological achievements has become an extremely important part in agricultural structural adjustment and agricultural economic development. Basic models for industrialization of China's agricultural scientific and technological achievements should be:( i) integrating scientific and technological development and production relying on large enterprises;( ii) integrating scientific research and development with agricultural scientific and technological achievements and scientific research institutions as support;( iii) spindle type transformation;( vi) agricultural scientific and technological demonstration area;( v) technology extension network.

Study on Circulation and Management of Rural Land Use Right

Currently,agriculture and rural economy have entered a new development stage. According to market demands and comparative advantages of regional resources,strategic adjustment of agricultural structure and realizing transformation from traditional agriculture to modern agriculture have become primary tasks. Land is the essential element of agricultural production,making innovation upon rural land use system and establishing flexible and effective land circulation system concern efficiency and optimization of agricultural resource allocation and development of rural element market. With more and more farmers engaged in secondary and tertiary industries,land left by those farmers is circulated to those farmers willing to do farming. Rural land circulation is inevitable trend of economic and social development,but it is a progressive process. To realize smooth rural land circulation,there must be standardized system.

The Recommendations for the Development of China's LCA Based on the International Successful Experience

Although agriculture is a source of greenhouse gas emissions,it also has carbon sequestration function. In the context of global warming and depletion of energy resources,the Western developed countries have explored the development model of low-carbon agriculture from many aspects such as developing strategies,promoting carbon trading and innovating upon production techniques. Based on the successful international experience,this paper analyzes the actual situation of China's agricultural carbon emissions,and sets forth the recommendations for the development of China's low-carbon agriculture.

An Outlook on Agricultural Modernization Path with Chinese Characteristics from Scale Agricultural Operation

First of all,this paper discusses the scale agricultural operation of China from the aspects of practical exploration and rational thinking. Later,it puts forward the concept of further promoting scale agricultural operation according to the present conditions of China,which includes encouraging large household pattern and scale breeding,developing various forms of socialized agricultural services,promoting agriculture industrialization,accelerating regional distribution of advantageous agricultural products and promoting the progress in agricultural science and technology comprehensively.

Framework on low-carbon retrofit of rural residential buildings in arid areas of northwest China:A case study of Turpan residential buildings

At present,buildings in arid and hot regions are facing severe challenges of indoor comfort improvement and carbon emission reduction,especially in rural areas.Multi-objective optimization could be an effective tool for tackling the aforementioned challenges.Therefore,this paper proposes a life-cycle optimization framework considering thermal comfort,which is beneficial to promoting residents’motivation for low-carbon retrofit in arid climate regions.First,in response to the above problems,three objective functions are specified in the framework,which are global warming potential(GWP),life cycle cost(LCC),and thermal discomfort hours(TDH).To improve the optimization efficiency,this research uses Deep Neural Networks(DNN)combined with NSGA-II to construct a high-precision prediction model(meta-model for optimization)based on the energy consumption simulation database formed by the orthogonal multi-dimensional design parameters.The accuracy index of the modified model is R2>0.99,cv(RMSE)≤1%,and NMBE≤0.2%,which gets rid of the dilemma of low prediction accuracy of traditional machine learning models.In the scheme comparison and selection stage,the TOPSIS based on two empowerment methods is applied to meet different design tendencies,where the entropy-based method can avoid the interference of subjective preference and significantly improve the objectivity and scientific nature of decision analysis.Additionally,sensitivity analysis is conducted on the variables,which supports guidance for practitioners to carry out the low-carbon design.Finally,the multi-objective optimization analysis for a farmhouse in Turpan is taken as a case study to evaluate the performance of the framework.The results show that the framework could significantly improve the building performance,with 60.8%,52.5%,and 14.2%reduction in GWP,LCC,and TDH,respectively.