基于GIS技术的甘谷县林地资源影响力值研究

Study on influences of woodland resources based on GIS technology in Gangu County

文中基于GIS技术,参照城市引力模型,综合考虑林地类型,林地面积,林地到村镇间的距离,人口、村镇数量等因素,计算出了全县15个乡镇的林地资源影响力值,相对森林覆盖率、人均林地面积等指标,更能客观反映全县林地资源空间分布对各乡镇村庄的综合量化影响,对全县林地规划建设、植树造林、改善生态环境具有一定的指导意义。

Based on GIS technology and referring to the city gravity model,in this paper,the influential value of forest land resources were calculated in 15 towns of the county,taking into account the factors of forest land type,forest land area,distance between forest land and villages,population and number of villages and towns. Compared with forest coverage,per capita forest land area and other indicators,it could objectively reflect the comprehensive distribution of forest land resources in all villages and villages of the county. It had certain guiding significance for the planning and construction of forest land,afforestation,and improvement of the ecological environment in the county.