USA Protected Areas - GAP Status 1-4

Retirement Notice: This item is in mature support as of June 2024 and will be retired in December 2026. A new version of this item is available for your use. Esri recommends updating your maps and apps to use the new version. The Protected Areas Database of the United States provides a comprehensive map of lands protected by government agencies and private land owners. This database combines federal lands with information on state and local government lands and conservation easements on private lands to create a powerful resource for land-use planning. Dataset Summary Phenomenon Mapped: Areas mapped in the Protected Areas Data base of the United States (GAP Status 1-4) Units: Meters Cell Size: 30.92208102 meters Source Type: Thematic Pixel Type: 8-bit unsigned integer Data Coordinate System: WGS 1984 Mosaic Projection: Web Mercator Auxiliary Sphere Extent: 50 United States plus Puerto Rico, the US Virgin Islands, Guam, Northern Mariana Islands and American Samoa. Source: USGS National Gap Analysis Program PAD-US version 3.0 Publication Date: July 2022 ArcGIS Server URL: https://landscape10.arcgis.com/arcgis/ This layer displays lands mapped in Protected Areas Database of the United States version 3.0 created by the USGS National Gap Analysis Program. This layer displays all four GAP Status classes: GAP Status 1 - Areas managed for biodiversity where natural disturbances are allowed to proceed GAP Status 2 - Areas managed for biodiversity where natural disturbance is suppressed GAP Status 3 - Areas protected from land cover conversion but subject to extractive uses such as logging and mining GAP Status 4 - Areas with no known mandate for protection The source data for this layer are available here.停用通知：本数据集自2024年6月起进入成熟支持阶段，将于2026年12月正式停用。目前已有该数据集的新版本可供使用，Esri建议您更新相关地图与应用，以切换至新版本。 美国保护区数据库（Protected Areas Database of the United States，简称PAD-US）提供了由政府机构与私有土地所有者保护的土地的综合地图。该数据库整合了联邦土地、州及地方政府土地信息，以及私有土地上的保护地役权数据，可作为土地利用规划的优质资源。 数据集摘要 制图要素：美国保护区数据库（PAD-US，GAP状态1-4）中已标注的保护区区域 单位：米 像元大小：30.92208102米 源数据类型：专题数据（Thematic） 像素类型：8位无符号整数 数据坐标系：WGS 1984 镶嵌投影：Web墨卡托（Web Mercator）辅助球体 覆盖范围：美国50个州及波多黎各、美属维尔京群岛、关岛、北马里亚纳群岛和美属萨摩亚 数据源：美国地质调查局（USGS）国家间隙分析计划 PAD-US 3.0版本 发布日期：2022年7月 ArcGIS服务器地址：https://landscape10.arcgis.com/arcgis/ 本图层展示了由美国地质调查局（USGS）国家间隙分析计划制作的3.0版美国保护区数据库中的受保护土地。该图层涵盖全部四类GAP保护等级（GAP Status）： GAP等级1：以生物多样性保护为目标，允许自然干扰自然发生的区域 GAP等级2：以生物多样性保护为目标，抑制自然干扰活动的区域 GAP等级3：免受土地覆盖转换，但允许伐木、采矿等开发利用活动的受保护区域 GAP等级4：无明确法定保护要求的区域 本图层的源数据可通过上述链接获取。