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以安徽省休宁县2009年SPOT5遥感影像为数据源,以ArcGIS10.0为数据加工与分析平台,建立不同林地类型遥感影像解析标志,进行林地小班界矢量化数据采集,生成Shp.格式小班图形数据,与小班属性数据链接,形成休宁县林地小班图形与属性数据库,并对林地结构、林地保护等级、林地功能分区及林地保护利用方向进行了分析。结果表明,休宁县林地面积177028.44 hm2,其中,有林地154457.32 hm2,疏林地1062.07 hm2,灌木林地14116.48 hm2,未成林地5759.55 hm2,苗圃地33.39 hm2,无立木林地587.09 hm2,宜林地1012.23 hm2,其他林业辅助生产用地0.31 hm2,以有林地和灌木林地居多,共占林地面积的95.2%;林地保护等级共有4级,各等级林地面积由大到小依次是Ⅱ级>Ⅲ级>Ⅰ级>Ⅳ级;全县林地分为4个主体功能区,包括北部风景林与水源涵养林发展区,中部休闲风景林与经济林发展区,西南部商品林发展区和东南部商品林与公益林发展区。本研究为制定休宁县林地一张图、实现林地资源数字化管理奠定了基础。
Taking the SPOT5 remote sensing image of 2009 in Xiuning County of Anhui Province as the data source and ArcGIS 10.0 as the data processing and analysis platform, the remote sensing image analysis marks of different forest land types were established, and the vector data of small-scale forest sector was collected to generate the Shp. , And linked with the data of small class attribute to form the database and attribute database of small-scale forest in Xiuning County, and analyzed the structure of forest land, the protection level of forest land, functional division of forest land and the direction of protection and utilization of forest land. The results showed that the area of forest land in Xiuning County was 177028.44 hm2, including 154457.32 hm2 in woodland, 1062.07 hm2 in sparse woodland, 14116.48 hm2 in shrub land, 5759.55 hm2 in uncultivated land, 33.39 hm2 in nursery, 587.09 hm2 in woodless woodland and 1012.23 hm2 in woodland, 0.31 hm2 of auxiliary production land, mostly forestland and shrubbery land, accounting for 95.2% of the total forest land area. There are 4 protection levels of forest land, and the order of the forest land of all grades is Ⅱ> Ⅲ> Ⅰ> Ⅳ The county’s forest land is divided into four main functional areas, including the northern scenic forest and water conservation forest development zone, the middle leisure and scenic forest and economic forest development zone, the commercial forest development zone in the southwest and the commercial forest and public welfare forest development zone in the southeast. This study lays the foundation for the development of a map of forest land in Xiuning County and the realization of digital management of woodland resources.