基于GIS技术的三明市森林资源动态规律研究

以森林经理学为理论基础,以地理信息系统作为系统管理平台,以三明市森林资源调查数据、数字地图为信息来源,借助相关数学分析方法,对森林资源1996—2005年期间的动态规律进行研究。结果表明:三明市林业用地面积基本保持稳中有升格局;森林覆盖率虽有起伏,但基本稳定在76.8%的较高水平上;人工林的面积呈增长趋势;天然林面积逐年减少;活立木蓄积量1996年后呈持续上升趋势。该项目研究为制定三明市林业的可持续发展方针提供科学决策依据,对于进一步促使森林资源管理信息化有一定的技术基础和应用价值。

Study on the Dynamics of Forest Resources in Sanming City Based on GIS

With the help of the relevant mathematical analysis approach,an investigation of dynamics of the forest resources based on the theoretical foundation of forest management was conducted with GIS used as a platform of system management.Its information sources come from data and digital maps of forest resources of Sanming City from 1996 to 2005.The result indicats that:the area of forest land of Sanming City has increased steadily.Although forest coverage rose and fell,it generally remained at a level of 76.8%.The area of the planted forests has increased,while the area of nature forests decreased year after year.The growing stock of standing timber has had a trend of increase since 1996.This study provids a scientific basis for drawing up policies of sustainable development of forestry of Sanming City and a technological basis as well and will be of a great value for promoting informationization of the management of forest resources.