In regard to the state and the model of city development, there will be huge difference since a city entering the metropolitan area, which means it has been into the new phase called“net-development”, which is the main impetus of city development and sustainable development during this new stage.

Through study of necessity and possibility of rural tourism development in Yangtze River Delta Region,it is thought that combined development has much strategic significance to rural tourism development.

With the deepening of the reform and open-up policies and the transition of economic system of our country, the process of regional tourism combined development has been accelerating constantly since the mid-or late-1980s, especially after entering the 21st century.

This article uses economics and management theories(including transaction costs theory,game theory and core competence theory) to analyze and discuss the integration,combined development mechanism of manufacturing and logistics industry.

This article expounded the benefit of the joint development of the public library and the library of community in the west,and proposed the methods of the joint development.

The joint development in Chinese cuisine and tourism can be achieved on the basis of cuisine products and dietetic culture,and specifically,the combination of medicative cuisine and healthcare tourism,the vegetable cuisine and religion tourism,flavor cuisine and ethnic tourism,farmers snacks and rural tourism and cooking technology and experimental tourism.

With the global economic development,joint development of the two districts seems extremely important.