机构地区: 浙江大学环境与资源学院资源科学系
出 处: 《浙江大学学报(理学版)》 2007年第3期346-350,共5页
摘 要: 以山区高空间分辨率的DEM数据为主要数据源,在提取纬度、坡度、坡向等相应的地形要素栅格数据的基础上,利用GIS技术对山区可照时间的空间分布进行了模拟,实现了山区可照时间空间分布规律的可视化表达,分析了山区可照时间的空间分布特征,对于山区的农业、林业和生态环境等方面的研究具有重要意义. DEM data with high spatial resolution were used in mountain areas. The topographic factors of altitude, slope, aspect, etc were derived from DEM. With the help of GIS technology, the spatial distribution of duration of possible sunshine with high spatial resolution was estimated to realize the visual expression of the actual spatial distribution of duration of possible sunshine. The spatial distribution characteristics of monthly duration of possible sunshine were analyzed. It has great significance for the research fields of agriculture, forestry and ecology in mountain areas.