In this paper, an approach to simulate the spatial dis- tribution of urban population is proposed using urban land use and population statistical data through t
This paper explores and identifies the rules of the unsteady evolution of COD in the upper and middle reaches of Minjiang River through multi-scale analysis on
<正> This paper introduces the recent appearance of a circular economy in such industrialized countries as Germany and Japan and outlines its concept and princi
Along with the economic development and the acceleration of urbanization,urban construction land expands rapidly in China,and has resulted in a series of socio-