Old Growth Forest Mapping Broad, Central, 1996. VIS_ID 4122 2015 20150116

## **Abstract** \n\nThis data and its metadata statement were supplied to the Bioregional Assessment Programme by a third party and are represented here as originally supplied.\n\n\n\nAbstract: Old growth forest mapping from aerial photograph interpretation of canopy species regeneration and senescent growth stages. Scale 1:25,000. Bounded by NSW Morriset Forestry District. Boundaries include the New England Highway and Hunter River in the North,the Blue mountains and Wollemi National Park in the west and the Illawarra highway in the south. VIS_ID 4122\n\n## **Purpose** \n\nTo map old growth forest in the Morriset area.\n\n## **Dataset History** \n\nThis data and its metadata statement were supplied to the Bioregional Assessment Programme by a third party and are represented here as originally supplied.\n\n\n\nDigitised on screen over 1:250,000 scale topographic maps. Attributes were verified in the field and by NSW state forests. Stereoscopic interpretation using a range of stereoscopes with a variety of magnifications (eg. Topcon and Abrams stereoscopes with x10 magnification). Attributes table & codes - Information contained in the attribute table is: regrowth-juvenile and sapling, regrowth-pole, Mature-early mature & mature, senescent-late mature and overmature, disturbance code. The project was only concerned with pyrophytic vegetation consequently, vegetation that was 30% regrowth. Eucalyptus-dominated vegetation with

**摘要**

本数据集及其元数据声明由第三方提供至生物区域评估计划（Bioregional Assessment Programme），本文档完全按照原始提交内容呈现。

**摘要**：通过冠层物种更新与衰老生长阶段的航空像片解译完成老龄林制图，制图比例尺为1:25000。研究区域隶属于新南威尔士州（New South Wales，简称NSW）莫里塞特林业管辖区，其四至范围为：北至新英格兰公路与亨特河，西至蓝山山脉与沃勒米国家公园，南至伊拉瓦拉公路。VIS_ID：4122

**用途**

用于绘制莫里塞特地区的老龄林空间分布图。

**数据集历史**

本数据集及其元数据声明由第三方提供至生物区域评估计划，本文档完全按照原始提交内容呈现。

本次数字化作业基于1:250000比例尺地形图开展屏幕数字化。属性信息经野外实地验证与新南威尔士州立林场核实。采用多款不同放大倍率的立体镜进行立体像对解译，例如放大倍率为10倍的托普康（Topcon）与艾布拉姆斯（Abrams）立体镜。属性表及编码规则：属性表包含以下内容：更新林-幼树与树苗、更新林-中幼林、成熟林-早成熟与成熟林、衰老林-晚成熟与过熟林，以及干扰编码。本项目仅关注火适应性植被，即更新林占比达30%的植被类型。研究对象为以桉树（Eucalyptus）为优势种的植被。