遇见数据集

Federally Recognized Tribal Lands

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ArcGIS Hub2026-08-12 更新2026-08-20 收录
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This layer represents the geographic areas 4 below. Category 1-3, census tracts, are in the other layer. In this designation, CalEPA formally designated four categories of geographic areas as disadvantaged: Census tracts receiving the highest 25 percent of overall scores in CalEnviroScreen 4.0 (1,984 tracts). Census tracts lacking overall scores in CalEnviroScreen 4.0 due to data gaps, but receiving the highest 5 percent of CalEnviroScreen 4.0 cumulative pollution burden scores (19 tracts). Census tracts identified in the 2017 DAC designation as disadvantaged, regardless of their scores in CalEnviroScreen 4.0 (305 tracts). Lands under the control of federally recognized Tribes. For purposes of this designation, a Tribe may establish that a particular area of land is under its control even if not represented as such on CalEPA’s DAC map and therefore should be considered a DAC by requesting a consultation with the CalEPA Deputy Secretary for Environmental Justice, Tribal Affairs and Border Relations at TribalAffairs@calepa.ca.gov. This file contains legal AIANNH entities for which the Census Bureau publishes data. The legal entities consist of federally recognized American Indian Reservations (AIRs) and Off-Reservation Trust Lands (ORTL). Downloaded in 2022 from the US Census website here: https://www.census.gov/geographies/mapping-files/time-series/geo/tiger-geodatabase-file.html

本图层对应下述4类地理区域。编号1至3的普查区(Census tracts)隶属于另一图层。在本次划定工作中,加州环境保护局(CalEPA)正式将四类地理区域认定为弱势社区区域:CalEnviroScreen 4.0总得分位列前25%的普查区(共1984个);因数据缺失未在CalEnviroScreen 4.0中获得总得分,但CalEnviroScreen 4.0累积污染负荷得分位列前5%的普查区(共19个);2017年弱势社区(DAC)划定标准中被认定为弱势的普查区(无论其在CalEnviroScreen 4.0中的得分情况,共305个);联邦认可的印第安部落所管控的土地。就本次划定规则而言,部落可通过向加州环境保护局(CalEPA)环境正义、部落事务与边境关系副秘书发送邮件至TribalAffairs@calepa.ca.gov申请磋商,证明某一特定土地处于其管控范围内(即便该土地未在CalEPA的DAC地图中被标注为部落管控土地),即可将该土地认定为弱势社区区域。本文件包含美国人口普查局可发布其相关数据的法定美国印第安、阿拉斯加原住民及夏威夷原住民区域(AIANNH)实体,这类法定实体包括联邦认可的美国印第安保留地(AIRs, American Indian Reservations)与保留地外信托土地(ORTL, Off-Reservation Trust Lands)。本数据集于2022年从美国人口普查局官网下载,下载链接为:https://www.census.gov/geographies/mapping-files/time-series/geo/tiger-geodatabase-file.html

创建时间:
2023-02-14
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