China, having urique national conditions, is facing a basic contradiction between large numbers of less educated surplus rural labor forces and limited capacities of urban employment and infrastructur
Based on explicating the definition of ecotone, this paper discussed emphatically the distribution and features of joint zone between land and water, transition zone between mountains and plains, and
In the era of information, geography has made remarkable progress in the development of its research objective and approaches. Geographic information System (GIS), which is similar to the quantitative