陕西省延安市桥山林业局2005年二类调查森林资源统计数据人工林面积蓄积结构表

本数据记录了陕西省延安市桥山林业局森林资源统计数据中人工林面积蓄积结构表的统计单位、优势树种、面积合计、蓄积合计、乔木林地面积小计、乔木林地蓄积小计、人工造林面积、人工造林蓄积、未成林造林地面积等记录。森林资源统计数据在林业科学研究和森林资源管理中十分重要的数据，包括不同森林类型的空间分布状况、面积大小，行政区划及区划代码等信息。森林资源统计数据包括国家级、省级、县级及林场等级别。目前的森林资源统计数据很多是由二类调查资料或一类清查数据获得的，是在林业生产中十分重要的统计资料。

This dataset contains the entries including statistical unit, dominant tree species, total area, total volume, subtotal area of arbor forest land, subtotal volume of arbor forest land, artificial afforestation area, artificial afforestation volume, and area of afforested land with immature forest from the planted forest area and volume structure table of the forest resource statistics of Qiaoshan Forestry Bureau, Yan'an City, Shaanxi Province. Forest resource statistics are critical for both forestry scientific research and forest resource management, as they encompass information such as the spatial distribution, area scale, administrative divisions and their corresponding division codes of various forest types. Forest resource statistics cover multiple levels including national, provincial, county-level and forest farm administrative and operational levels. Most of the current forest resource statistics are sourced from second-class forest management inventory surveys or first-class national forest inventory data, and represent highly valuable statistical materials for forestry production.