In order to explore the substitution substrate for rice seedling on upland fields,this paper uses spent mushroom substrate to study the physical and chemical pr
ArcGIS technology is used to study the spatial pattern of housing prices in Xiangtan City,and it is found that the spatial pattern of housing prices shows prima
This paper first analyzes the current situation of land use in Ma’anshan City,and points out some problems in Ma’anshan’s construction land use such as obvio