As one of the three main approaches to spatial ecology, metapopulation biology is concerned with the dynamic consequences of migration among local populations and the conditions of regional persistence of species with unstable local populations.

Metapopulation theory is the framework of spatial ecology which is developed during recent decades.

Dynamics of urban ecological space evolution and policy responses:a case study of Nanjing City;

From the organizing order of the social living that are the order of the state and city,indigenous breath,ecological space and furrowing civilization,it analyzes spatial distribution artist characteristics of the old city in Yuci city,which will have important meaning to realize the integral feature and general vale of the old city in Yuci city.

Through the detailed introduction of the design of Yada digital port in changsha,this paper presents the pproject s design idea from many aspects,such as plan arrangement,space contruction and building figure,and explores the concept of moulding green ecological space in hign rise building.