NSW Forest Monitoring and Improvement Program RFA Historic Forest Canopy Cover Extent - 1995 to 2019

This dataset contains spatial layers describing Forest Canopy Extent from 1995-2019 in NSW Regional Forest Agreements (RFA) Areas along the eastern coast. Forest Canopy Extent is the likelihood that a certain area has forest at any given time. Forest Canopy is defined in accordance with the National State of the Forests Report which defines forests as containing as a minimum, a mature or potentially mature stand height exceeding 2 metres, stands dominated by trees usually having a single stem, where the mature or potentially mature stand component comprises 20% canopy coverage using a Crown Projective Cover (CPC) measure.

These have been based off the National Greenhouse Gas Inventory (NGGI) National Carbon Accounting System (NCAS) National Forest and Sparse Woody Vegetation Data grids (ABARES, 2020). These base grids are Landsat in origin and have a resolution of 25m.

To calculate forest canopy extent, these base grids have been processed through a series of land use and vegetation type exclusion masking and a through a fuzzy-logic based certainty analysis to reflect a forest cover extent coverage for NSW that is reflective of past and current coverage.

Read more about the project on the Natural Resources Commission website:
https://www.nrc.nsw.gov.au/accordion-content-main/fmip-ecosystemhealth-projectfe1

This dataset is superseded by 'NSW Forest Monitoring and Improvement Program State-Wide Historic Forest Canopy Cover Extent - 1995 to 2020'

本数据集包含描述新南威尔士州（New South Wales, NSW）东海岸区域森林协议（Regional Forest Agreements, RFA）范围内1995年至2019年森林冠层覆盖范围（Forest Canopy Extent）的空间图层。森林冠层覆盖范围指某一区域在任意时刻存在森林的可能性。森林冠层（Forest Canopy）的定义依据《国家森林状况报告》（National State of the Forests Report），该报告对森林的最低定义标准为：成熟或潜在成熟林分高度超过2米，以通常具有单一树干的树木为优势种的林分，且采用冠层投影盖度（Crown Projective Cover, CPC）测算的成熟或潜在成熟林分冠层覆盖率达到20%。

本数据集基于国家温室气体清单（National Greenhouse Gas Inventory, NGGI）、国家碳核算系统（National Carbon Accounting System, NCAS）的国家森林与稀疏木本植被数据网格（ABARES, 2020）制作。上述基础网格数据源自陆地卫星（Landsat），空间分辨率为25米。

为计算森林冠层覆盖范围，研究团队对上述基础网格开展了一系列土地利用与植被类型排除掩膜处理，并通过基于模糊逻辑的确定性分析，最终生成能够反映新南威尔士州过去及当前森林覆盖状况的图层。

如需了解该项目的更多详情，请访问澳大利亚自然资源委员会官网：https://www.nrc.nsw.gov.au/accordion-content-main/fmip-ecosystemhealth-projectfe1

本数据集已由《新南威尔士州森林监测与改进计划全州历史性森林冠层覆盖范围——1995至2020年》数据集替代。