基于GIS技术的三江平原热量资源评价

GIS-based Assessment of Thermal Resources in the Sanjiang Plain

基于GIS技术,使用黑龙江省气象观测站和农垦、森工系统观测站的气温资料,以及数字高程模型(DEM)资料,运用趋势面分析法和线性内插法得到三江平原栅格化的热量资源数据。分析表明,三江平原纬度和高度因子对各项热量指标分布均有影响,经度因子主要影响年平均气温、4月平均气温、7月平均气温、≥0℃积温和≥10℃积温;佳木斯西部、双鸭山西部、鸡西大部热量资源较丰富,而青黑山、完达山、老爷岭和太平岭等地区热量资源相对较差。分析结果为合理开发利用三江平原热量资源提供了依据。

Applying GIS technology, surface air temperature data of 80 meteorological stations in Heilongjiang Province, 16 agricultural and forestry stations in Sanjiang Plain, and DEM data, a statistical model of thermal resource indices with latitude, longitude and elevation as independent variables was constructed. The trend surface analysis and liner interpolation methods were used to calculate and correct the thermal resource indices values. The results show that latitude and eleva- tion factors have significant effect on the thermal resource distribution, and longitude factor mere- ly affects air temperature of warm season and accumulated temperature ≥0℃ and ≥10℃. Ther- mal resources are generally rich in the plain areas, and poor in the western and southern moun- tainous areas.