North Coast Regional Strategies Biodiversity Conservation Lands Layers

The 25 Year Investment and Biodiversity Conservation Lands layers were compiled for the NSW North Coast Regional Strategies in 2007. The Biodiversity Conservation Lands is complete for all Local Government Areas along the coast from Tweed Heads to Gosford. \r\n\r\nThere are two BioConLands datasets for each Regional Strategy area - a simplified one containing only State, Regional and Local categories in the attribute table and a larger, more complex version with "detailed" information on the components that went into the datasets.\r\n\r\nThe data layers may be interpreted as presenting planning constraints at three scales:\r\n\r\n* State: Areas identified as of state significance in recognition of a related state or federal conservation policy or program;\r\n* Regional : Areas identified as of regional significance generally in recognition of a related state policy or program or as providing buffers to state significant lands;\r\n* Local : Areas recognised through local conservation zoning and including all remnant vegetation.\r\n\r\nPrinciples for deriving conservation constraints:\r\n\r\n1. A twenty five-year planning horizon was adopted for identifying Biodiversity Conservation Lands and opportunities.\r\n2. State, regional and local significance classes for conservation constraints were adopted and spatially delineated.\r\n3. Biodiversity features are presented as constraints with limited or no transferability. Irreplaceability of significant features is generally low and in situ conservation is generally required. The level of irreplaceability for each feature is noted in the metadata proformas.\r\n4. Biodiversity Conservation Lands will generally be identified across the landscape regardless of current tenure or zoning. Whilst back-zoning of existing development zones is not envisaged, protection of high conservation value features occurring in existing development zones will be encouraged.\r\n\r\nImportant Note: Certain boundaries within these datasets, eg. NPWS and State Forest Estate, are only current to 2007.

2007年，为新南威尔士州（New South Wales, NSW）北海岸区域战略编制了25年期投资与生物多样性保护用地（Biodiversity Conservation Lands）图层集。该生物多样性保护用地数据集覆盖了从特威德角（Tweed Heads）至戈斯福德（Gosford）沿岸的全部地方政府区域（Local Government Areas）。

各区域战略区域均包含两类生物多样性保护用地（BioConLands）数据集：一类为简化版本，其属性表（attribute table）仅涵盖州级、区域级与地方级三类分类；另一类为内容更为详实的复杂版本，包含构成该数据集的各类组分的“详细”信息。

该数据集图层可从三个尺度体现规划约束条件（planning constraints）：
* 州级：为响应相关州级或联邦保护政策或项目，被认定具有州级重要性的区域；
* 区域级：通常为响应相关州级政策或项目，或为州级重要区域提供缓冲的、被认定具有区域级重要性的区域；
* 地方级：通过地方保护分区认定的区域，包含所有残余植被（remnant vegetation）。

保护约束条件的推导原则：
1. 在识别生物多样性保护用地与保护机遇时，采用25年的规划周期。
2. 确立了保护约束条件的州级、区域级与地方级重要性分级，并完成了空间划定。
3. 生物多样性特征以约束条件的形式呈现，其可转移性有限或不具备可转移性。重要特征的不可替代性通常较低，且一般需采用原地保护方式。各特征的不可替代性等级将在元数据表单（metadata proformas）中注明。
4. 生物多样性保护用地通常将覆盖整个景观区域，无论其当前的土地保有权（tenure）或分区状况如何。尽管未计划对现有开发分区实施反向划区（back-zoning），但将鼓励对现有开发分区内的高保护价值特征实施保护。

重要说明：本数据集内的部分边界（如国家公园与野生动物服务局（National Parks and Wildlife Service, NPWS）与州立森林地产边界）的现势性仅截至2007年。