【摘要】 本文以卫星遥感影像数据为信息源,利用ArcGIS软件进行遥感数据区划并进行现地核实,结合最新森林资源规划设计调查成果,形成本期林地更新数据和林地变化数据。同时,将结果与前期林地变更调查结果比对,分析了林地的资源现状、变化情况、引起林地变化的原因。结果表明,造林更新、调查因素等是导致徽县林地地类变化的主要因素。更多还原

【Abstract】 Based on remote sensing image data,ArcGIS software was used for divising remote sensing data and on-spot confirmation,combined with the results of the latest forest resources planning and investigation,the upgraded forestland data and the change data were obtained.At the same time,the results were compared with the preliminary results of the forestland change investigation to analyze the status and changes of forest resources,and causes of forestland change.The results showed that afforestation renewal and investigation were the main factors that lead to the change of forestland types in Huixian County.更多还原