基于GIS的安徽省森林资源演变格局及变化特征

Evolution Pattern and Change Characteristics of Forest Resources in Anhui Province Based on GIS

运用GIS技术和重心理论分析2010-2016年安徽省林业面积、森林面积、活立木总蓄积量、森林蓄积量的区域分布格局和重心移动规律,探讨重心移动的驱动因子,结果表明:(1)安徽省森林资源地域差异明显,皖西南林区和皖南林区具有绝对优势。(2)选取的4个指标的重心移动路径有区别,但整体上看安徽省森林资源向西北方向移动。(3)在重心转移轨迹上,指标(如森林蓄积量)重心移动距离可以反映该指标在移向地区增长幅度值。(4)政策方面的因素是安徽省森林资源扩张的重要驱动因子;林业科学技术的推广;人工造林及民众保护森林意识的提升,是安徽省森林资源得到稳定提升的原因。

Based on the GIS technology and the center of gravity theory,the forestry area,forest area,total volume of forest storage,the regional distribution pattern of forest storage and the movement of gravity center in Anhui province were analyzed for 2010-2016 years. The driving factors of the center of gravity movement were discussed. The results showed that：（1）the regional difference of the forest resources in Anhui province is obvious,and the South Anhui south forest The area and the southern Anhui forest area have absolute superiority.（2）there are different in the center of gravity moving path between the 4 indexes selected,but on the whole,the forest resources in Anhui move northward.（3）on the track of gravity transfer,the distance of gravity shift can reflect the growth rate of the index in the area.（4）the policy factors are the important driving factors for the expansion of forest resources in Anhui province; the popularization of forestry science and technology,the promotion of artificial afforestation and the public awareness of forest protection are the reasons for the stability and promotion of forest resources in Anhui province.