NVMP mapping for the Bogan Gate map sheet VIS_ID 1595
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Native vegetation, including forest, woodland and grass/forbland assemblages, is described and mapped for the Bogan Gate, Boona Mount, Condobolin, Dandaloo, Tottenham and Tullamore 1:100 000 map sheets, located in the central western region of New South Wales. This area encompasses parts of six Local Government Areas: Bogan, Forbes, Lachlan, Narromine, Parkes and Warren. Spatial delineation of map units was accomplished using stereoscopic air photo interpretation, assisted by satellite imagery. Preliminary coding was applied based on vegetation patterns and then revised subsequent to data manipulation and analyses. Comprehensive plot-based floristic data were collected for 850 plots using a random stratified sampling procedure. An environmental stratification based on soil landscapes, temperature and rainfall guided sampling location and intensity. Additional mask layers were applied to distinguish between 'woody' and 'non woody' vegetation and each layer independently sampled. Plot data were classified into 41 woody and 20 non-woody floristic groups using pattern analysis within PATN. Additional analysis techniques included ordination; fidelity, homogeneity, nearest neighbour and indicator species analysis. Multi-Response Permutation Procedures were used to evaluate the degree to which classificatory groups were recognised at a similar level of within group similarity. Floristic groups are defined using structural dominance, diagnostic/indicator species and character species data. AiPI units were interrogated with respect to floristic groups to produce the map units. A total of 21 woody map units were developed to represent woody assemblages. Six broad map units based on landform and land use patterns represent non-woody assemblages. Map units are described with respect to structure, floristic composition and landform unit.\r\n\r\nVIS_ID 1595
本数据集针对位于新南威尔士州中西部地区的博根盖特(Bogan Gate)、布纳芒特(Boona Mount)、康多博林(Condobolin)、丹达卢(Dandaloo)、托特纳姆(Tottenham)与塔勒莫尔(Tullamore)共6幅1:10万比例尺地形图区域,对涵盖森林、疏林(woodland)、草本/非禾本科草本群落在内的本土植被开展描述与成图工作。该研究区域覆盖新南威尔士州6个地方政府辖区的部分范围,分别为博根(Bogan)、福布斯(Forbes)、拉克兰(Lachlan)、纳罗明(Narromine)、帕克斯(Parkes)与沃伦(Warren)。制图单元的空间区划通过立体航空像片解译完成,并辅以卫星影像辅助解译。研究首先基于植被格局开展初步编码,随后在数据处理与分析完成后对编码结果进行修正。
本研究采用随机分层抽样方案,共布设850个样地并采集了完整的植物区系(floristic)数据。研究基于土壤景观、气温与降水开展环境分层,以此指导样地的布设位置与采样强度。此外通过增设掩膜图层区分“木本”与“非木本”植被,并对两类图层分别独立采样。利用PATN软件中的格局分析工具,将样地数据划分为41个木本植物区系群与20个非木本植物区系群。其余分析方法还包括排序分析(ordination)、保真度分析、均一性分析、最近邻分析与指示物种分析。采用多响应置换程序(Multi-Response Permutation Procedures)评估各分类群在组内相似性水平上的识别程度。植物区系群基于结构优势度、诊断种/指示种与特征种数据进行定义。通过将航空像片解译单元(AiPI units)与植物区系群进行匹配,最终生成制图单元。共生成21个木本植被制图单元以表征木本植被群落,同时基于地貌与土地利用格局生成6个广义制图单元以表征非木本植被群落。各制图单元均从群落结构、植物区系组成与地貌单元三个维度进行描述。
VIS_ID 1595
提供机构:
data.nsw.gov.au



