Research on the Suitable Planting Division for Lily Based on GIS in Lanzhou Region

Based on the climate data of 4 meteorological observation stations in Lanzhou and other meteorological observation stations nearby from 1981 to 2010,and the precipitation data of 154 stations,the data gridding analysis of precipitation and temperature were completed by using the technique of GIS. Combined with the field observations and yield data of lily,the planting division indices spatial analysis model for lily was established by using methods of stepwise regression,macroscopic geographic factors simulation,and small topography correction. It was found that the model conclusion accorded with the actual planting effect. Division map made by the technique of GIS and the horizontal and vertical planting division reference tables displayed intuitively the geographical distribution and characteristics of suitable planting area for lily in detail,which reduced the blindness of planting lily in Lanzhou.