The article analyses the temporal-spatial changes of profiles by EOF (Empirical Orthogonal Function) analy-sis and DTM analysis of GIS. These profiles, which ar
This article reveals the ecological features and the theories and methods of introducing pioneer plants in the process of eco-restoring in different degenerativ
This paper reveals that agricultural growth trend in China is strongly correlated with the growth of off-farm industries-the curve of net income from off-farm i
Human beings have had a tremendous impact on natural ecosystems and are now the principal power tochange the biosphere. It is logical that we should pay close a
In this paper a new method is developed to make a dynamic layout adjustemnt and navigation for enter-prise Geographic Information System(GIS) based on object ma