With the acceleration of industrialization,urbanization,as well as the reform and opening-up,the amount of migrant workers is increasing sharply. However,the sp
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