Successional Stages for CRA Lower North East. VIS_ID 3892
收藏资源简介：
This data layer shows the distribution of Candidate Old Growth forest and other Successional Stages across all tenures in Upper and Lower North East New South Wales as required by the Regional Forest Agreements (RFA). An expert panel convened by the NSW Environmental Heritage and Technical Committee (EHTC) in 1997 developed a process for the identification and derivation of the following Successional Stages:;\r\n;\r\nCandidate Old Growth ;\r\nDisturbed Old Growth ;\r\nMature Forest;\r\nDisturbed Mature Forest;\r\nYoung Forest;\r\nRecently Disturbed Forest;\r\nRainforest.;\r\n;\r\nThis data layer is an update of the original Successional Stages layer produced during the U/LNE Comprehensive Regional Assessment (CRA) process in 1998. The Comprehensive Regional Assessment Aerial Photographic Interpretation (CRAFTI) data were crucial for Successional Stage derivation, however they were not completed in time for derivation on freehold land in Upper North East (floristics) and all tenures in Lower North East (structure and floristics). The U/LNE Forest Agreements stipulate that data on freehold land will be updated when CRAFTI data become available. With the finalisation of the digital CRAFTI layer in September 2000, Successional Stages could be derived across freehold lands. ;\r\n;\r\nThe same methodology for deriving the original Successional Stages layer during the CRA (RACD 1999a) was used for this process. Distribution of Candidate Old Growth forest and other Successional Stages were derived by integrating structural maturity classes from 1:25,000 scale Aerial Photographic Interpretation (API), interpretability classes derived from vegetation mapping units, and disturbance history from CRAFTI and State Forests New South Wales (SFNSW) records. The rainforest component is an amalgamation of mapped data from SFNSW Forest Typing (Forestry Commission of NSW 1989) and CRAFTI taken from the Forest Ecosystems layer (RACD 1999b).;\r\n;\r\nRFA projects dependent on the completion of the Successional Stages layer include fauna and flora habitat remodelling and derivation of old growth forest ecosystems on freehold land. The data will also be of use to the Department of Land and Water Conservation and Regional Vegetation Committees in land management decisions.;\r\n;\r\nVIS_ID 3892
本数据图层展示了新南威尔士州东北上下区所有保有权地块内的候选原始林（Candidate Old Growth forest）及其他演替阶段（Successional Stages）的分布情况，符合区域森林协议（Regional Forest Agreements, RFA）的要求。1997年，新南威尔士州环境遗产与技术委员会（NSW Environmental Heritage and Technical Committee, EHTC）召集专家小组，制定了以下演替阶段的识别与推导流程： 候选原始林（Candidate Old Growth） 受干扰原始林（Disturbed Old Growth） 成熟林（Mature Forest） 受干扰成熟林（Disturbed Mature Forest） 幼龄林（Young Forest） 近期受干扰林（Recently Disturbed Forest） 雨林（Rainforest） 本数据图层是1998年U/LNE综合区域评估（Comprehensive Regional Assessment, CRA）流程中生成的原始演替阶段图层的更新版本。综合区域评估航空摄影解译（Comprehensive Regional Assessment Aerial Photographic Interpretation, CRAFTI）数据对演替阶段的推导至关重要，但该数据未能及时完成，无法用于推导东北上区自由保有地（区系）以及东北下区所有保有权地块（结构与区系）的演替阶段。U/LNE森林协议规定，当CRAFTI数据可用时，将更新自由保有地的相关数据。2000年9月数字CRAFTI图层最终定稿后，即可完成所有自由保有地的演替阶段推导。 本次推导沿用了综合区域评估（CRA，RACD 1999a）中生成原始演替阶段图层的方法。候选原始林及其他演替阶段的分布数据，通过整合以下信息推导得出：1:25000比例尺航空摄影解译（Aerial Photographic Interpretation, API）得到的结构成熟度等级、植被制图单元派生的解译等级，以及CRAFTI和新南威尔士州国家森林（State Forests New South Wales, SFNSW）记录中的干扰历史。 雨林组分整合了SFNSW森林类型制图（新南威尔士州林业委员会，1989年）以及来自森林生态系统图层（RACD 1999b）的CRAFTI数据。 依赖该演替阶段图层完成的区域森林协议项目包括：动植物栖息地重塑、自由保有地上的原始林生态系统推导。该数据亦可用于土地与水资源保护部及区域植被委员会的土地管理决策工作。 VIS_ID 3892
