미국 환경 보호국 (USEPA)은 생태계 및 생태계 구성요소의 연구, 평가, 관리, 모니터링을 위한 공간 프레임워크 역할을 하는 생태지역 데이터 세트를 제공합니다. 생태지역은 생태계와 환경 자원의 유형, 품질, 양이 전반적으로 유사한 지역을 나타냅니다. 이러한 범용 지역은 동일한 지리적 영역 내에서 다양한 유형의 리소스를 담당하는 연방 기관, 주 기관, 비정부 기관 전반에서 생태계 관리 전략을 구조화하고 구현하는 데 중요합니다.
이 지도를 컴파일하는 데 사용된 접근 방식은 지질, 지형, 식물, 기후, 토양, 토지 이용, 야생 동물, 수문학 등 생물 및 무생물 현상의 패턴을 분석하여 생태 지역을 식별할 수 있다는 전제를 기반으로 합니다. 각 특성의 상대적 중요도는 생태 지역마다 다릅니다.
이 데이터 세트에는 USEPA 생태지역 분류 체계와 환경 협력 위원회 (CEC)의 체계가 포함됩니다. 생태지역은 계층적이며, 레벨 IV가 가장 상세하고 레벨 I이 가장 광범위한 분류를 정의합니다. 이 계층 구조로 인해 레벨 III 기능은 레벨 I 및 II의 정보를 유지합니다. CEC는 1단계, 2단계, 3단계에 대해 북미 전체를 별도의 생태지역으로 구분한 반면 USEPA는 3단계와 4단계에서 미국에 대해서만 구분했습니다. 'us'로 시작하는 열은 USEPA 스킴에 속하고 'na'로 시작하는 열은 CEC 스킴에 속합니다. 이 데이터 세트의 수집된 버전에는 미국 본토의 기능만 포함됩니다 (즉, 알래스카와 하와이는 포함되지 않음). 생태지역을 정의하는 데 사용된 방법은 Omernik (1995, 2004), Omernik 외 (2000), Gallant 외 (1989)에 설명되어 있습니다.
*데이터 제공업체에서 계산합니다.
표 스키마
표 스키마
이름
유형
설명
l1_key
문자열
NA 레벨 I 코드 및 이름
l2_key
문자열
NA 레벨 II 코드 및 이름
l3_key
문자열
미국 3단계 코드 및 이름
na_l1code
문자열
1단계 생태지역 코드 (북미/CEC)
na_l1name
문자열
레벨 I 생태지역 이름 (북미/CEC)
na_l2code
문자열
2단계 생태지역 코드 (북미/CEC)
na_l2name
문자열
2단계 생태지역 이름 (북미/CEC)
na_l3code
문자열
3단계 생태지역 코드 (북미/CEC)
na_l3name
문자열
3단계 생태지역 이름 (북미/CEC)
shape_area
DOUBLE
원래 형식의 지형지물 도형 영역
shape_leng
DOUBLE
지형지물 도형의 원래 형식의 모서리 길이
us_l3code
문자열
3단계 생태지역 코드 (미국/USEPA)
us_l3name
문자열
3단계 생태지역 이름 (미국/USEPA)
이용약관
이용약관
이 미국 퍼블릭 도메인 데이터 사용에는 제한이 없습니다.
인용
인용:
환경 협력 위원회 1997. 북미의 생태학적 지역: 공통된 관점을 향하여 Commission for Environmental
Cooperation, Montreal, Quebec, Canada. 71p. 지도 (축척 1:12,500,000)
2006년 개정.
McMahon, G., S.M. Gregonis, S.W. Waltman, J.M. Omernik, T.D. Thorson,
J.A. Freeouf, A.H. Rorick, J.E. Keys. 2001. 미국 본토의 공통 생태 지역에 대한 공간 프레임워크 개발 Environmental Management 28(3):293-316.
Omernik, J.M. 1987. 미국 본토의 생태 지역
지도 (1:7,500,000) Annals of the Association of American
Geographers 77(1):118-125.
Omernik, J.M. 1995. 생태지역: 환경 관리를 위한 공간 프레임워크입니다. In: Biological Assessment and Criteria: Tools for Water
Resource Planning and Decision Making. Davis, W.S. and T.P. Simon
(eds.), Lewis Publishers, Boca Raton, FL. p. 49-62.
Omernik, J.M. 2004. 생태 지역의 특성과 정의에 관한 관점 Environmental Management 34(Supplement 1):S27-S38.
Omernik, J.M. and G.E. Griffith. 2014년. Ecoregions of the conterminous
United States: evolution of a hierarchical spatial framework. Environmental
Management 54(6):1249-1266.
미국 환경 보호국 (USEPA)은 생태계 및 생태계 구성요소의 연구, 평가, 관리, 모니터링을 위한 공간 프레임워크 역할을 하는 생태지역 데이터 세트를 제공합니다. 생태지역은 생태계와 환경 자원의 유형, 품질, 양이 전반적으로 유사한 지역을 나타냅니다. 이러한 범용 리전은 다음과 같습니다.
[null,null,[],[[["\u003cp\u003eThe EPA Ecoregions dataset provides a spatial framework for ecosystem research, assessment, management, and monitoring across the United States.\u003c/p\u003e\n"],["\u003cp\u003eEcoregions are classified into levels (I-IV) based on similarities in biotic and abiotic factors, with Level III being the focus of this dataset for the conterminous US.\u003c/p\u003e\n"],["\u003cp\u003eThe dataset includes both USEPA and CEC (Commission for Environmental Cooperation) ecoregion classification schemes, offering different perspectives on ecological regionalization.\u003c/p\u003e\n"],["\u003cp\u003eThis dataset can be used to structure and implement ecosystem management strategies across various organizations responsible for resource management.\u003c/p\u003e\n"],["\u003cp\u003eThe data is public domain and freely accessible for use within the Google Earth Engine platform.\u003c/p\u003e\n"]]],[],null,["# US EPA Ecoregions (Level III)\n\nDataset Availability\n: 2013-04-16T00:00:00Z--2013-04-17T00:00:00Z\n\nDataset Provider\n:\n\n\n [United States Environmental Protection Agency](https://www.epa.gov/eco-research/level-iii-and-iv-ecoregions-continental-united-states)\n\nTags\n:\n[ecoregions](/earth-engine/datasets/tags/ecoregions) [ecosystems](/earth-engine/datasets/tags/ecosystems) [epa](/earth-engine/datasets/tags/epa) [table](/earth-engine/datasets/tags/table) \n\n#### Description\n\nThe U.S. Environmental Protection Agency (USEPA) provides\nthe Ecoregions dataset to serve as a spatial framework for the\nresearch, assessment, management, and monitoring of ecosystems\nand ecosystem components. Ecoregions denote areas of general\nsimilarity in ecosystems and in the type, quality, and quantity\nof environmental resources. These general-purpose regions are\ncritical for structuring and implementing ecosystem management\nstrategies across federal agencies, state agencies, and nongovernmental\norganizations that are responsible for different types of resources\nwithin the same geographical areas.\n\nThe approach used to\ncompile this map is based on the premise that ecological regions\ncan be identified through the analysis of patterns of biotic\nand abiotic phenomena, including geology, physiography, vegetation,\nclimate, soils, land use, wildlife, and hydrology. The relative\nimportance of each characteristic varies from one ecological\nregion to another.\n\nThis dataset includes the USEPA ecoregions\nclassification scheme, as well as the scheme from the Commission\nfor Environmental Cooperation (CEC). Ecoregions are hierarchical,\nwith Level IV being the most detailed and Level I defining the\nbroadest classifications. Because of this hierarchy, Level III\nfeatures retain information from Levels I and II. The CEC divided\nall of North America in distinct ecoregions for Levels I, II,\nand III, while the USEPA did so only for the United States at\nLevel III and Level IV. The columns starting with 'us*' belong\nto the USEPA scheme, and the columns starting with 'na*' belong\nto the CEC scheme. The ingested version of this dataset contains\nfeatures for the conterminous United States only (that is, Alaska\nand Hawaii are not included). Methods used to define the ecoregions\nare explained in Omernik (1995, 2004), Omernik and others (2000),\nand Gallant and others (1989).\n\n\\*Calculated by the data provider.\n\n### Table Schema\n\n**Table Schema**\n\n| Name | Type | Description |\n|------------|--------|----------------------------------------------------------------------|\n| l1_key | STRING | NA Level I Code and Name |\n| l2_key | STRING | NA Level II Code and Name |\n| l3_key | STRING | US Level III Code and Name |\n| na_l1code | STRING | Code for Level I Ecoregion (North America/CEC) |\n| na_l1name | STRING | Name for Level I Ecoregion (North America/CEC) |\n| na_l2code | STRING | Code for Level II Ecoregion (North America/CEC) |\n| na_l2name | STRING | Name for Level II Ecoregion (North America/CEC) |\n| na_l3code | STRING | Code for Level III Ecoregion (North America/CEC) |\n| na_l3name | STRING | Name for Level III Ecoregion (North America/CEC) |\n| shape_area | DOUBLE | Area of the feature's geometry in its original format |\n| shape_leng | DOUBLE | Length of the edges in the feature's geometry in its original format |\n| us_l3code | STRING | Code for Level III Ecoregion (US/USEPA) |\n| us_l3name | STRING | Name for Level III Ecoregion (US/USEPA) |\n\n### Terms of Use\n\n**Terms of Use**\n\nThere are no restrictions on use of this US public domain data.\n\n### Citations\n\nCitations:\n\n- Commission for Environmental Cooperation. 1997. Ecological regions\n of North America: toward a common perspective. Commission for Environmental\n Cooperation, Montreal, Quebec, Canada. 71p. Map (scale 1:12,500,000).\n Revised 2006.\n- McMahon, G., S.M. Gregonis, S.W. Waltman, J.M. Omernik, T.D. Thorson,\n J.A. Freeouf, A.H. Rorick, and J.E. Keys. 2001. Developing a spatial\n framework of common ecological regions for the conterminous United\n States. Environmental Management 28(3):293-316.\n- Omernik, J.M. 1987. Ecoregions of the conterminous United States.\n Map (scale 1:7,500,000). Annals of the Association of American\n Geographers 77(1):118-125.\n- Omernik, J.M. 1995. Ecoregions: A spatial framework for environmental\n management. In: Biological Assessment and Criteria: Tools for Water\n Resource Planning and Decision Making. Davis, W.S. and T.P. Simon\n (eds.), Lewis Publishers, Boca Raton, FL. p. 49-62.\n- Omernik, J.M. 2004. Perspectives on the nature and definition of\n ecological regions. Environmental Management 34(Supplement 1):S27-S38.\n- Omernik, J.M. and G.E. Griffith. 2014. Ecoregions of the conterminous\n United States: evolution of a hierarchical spatial framework. Environmental\n Management 54(6):1249-1266.\n\n### Explore with Earth Engine\n\n| **Important:** Earth Engine is a platform for petabyte-scale scientific analysis and visualization of geospatial datasets, both for public benefit and for business and government users. Earth Engine is free to use for research, education, and nonprofit use. To get started, please [register for Earth Engine access.](https://console.cloud.google.com/earth-engine)\n\n### Code Editor (JavaScript)\n\n```javascript\nvar dataset = ee.FeatureCollection('EPA/Ecoregions/2013/L3');\nvar visParams = {\n palette: ['0a3b04', '1a9924', '15d812'],\n min: 23.0,\n max: 3.57e+11,\n opacity: 0.8,\n};\nvar image = ee.Image().float().paint(dataset, 'shape_area');\nMap.setCenter(-99.814, 40.166, 5);\nMap.addLayer(image, visParams, 'EPA/Ecoregions/2013/L3');\nMap.addLayer(dataset, null, 'for Inspector', false);\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/EPA/EPA_Ecoregions_2013_L3)\n\n### Visualize as a FeatureView\n\n\nA `FeatureView` is a view-only, accelerated representation of a\n`FeatureCollection`. For more details, visit the\n[`FeatureView` documentation.](/earth-engine/guides/featureview_overview)\n| **Important:** Earth Engine is a platform for petabyte-scale scientific analysis and visualization of geospatial datasets, both for public benefit and for business and government users. Earth Engine is free to use for research, education, and nonprofit use. To get started, please [register for Earth Engine access.](https://console.cloud.google.com/earth-engine)\n\n### Code Editor (JavaScript)\n\n```javascript\nvar fvLayer = ui.Map.FeatureViewLayer('EPA/Ecoregions/2013/L3_FeatureView');\n\nvar visParams = {\n color: {\n property: 'shape_area',\n mode: 'linear',\n palette: ['0a3b04', '1a9924', '15d812'],\n min: 23.0,\n max: 3.57e+11\n },\n opacity: 0.8,\n polygonStrokeOpacity: 0\n};\n\nfvLayer.setVisParams(visParams);\nfvLayer.setName('EPA/Ecoregions/2013/L3');\n\nMap.setCenter(-99.814, 40.166, 5);\nMap.add(fvLayer);\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/EPA/EPA_Ecoregions_2013_L3_FeatureView) \n[US EPA Ecoregions (Level III)](/earth-engine/datasets/catalog/EPA_Ecoregions_2013_L3) \nThe U.S. Environmental Protection Agency (USEPA) provides the Ecoregions dataset to serve as a spatial framework for the research, assessment, management, and monitoring of ecosystems and ecosystem components. Ecoregions denote areas of general similarity in ecosystems and in the type, quality, and quantity of environmental resources. These general-purpose regions are ... \nEPA/Ecoregions/2013/L3, ecoregions,ecosystems,epa,table \n2013-04-16T00:00:00Z/2013-04-17T00:00:00Z \n24.5 -124.8 49.4 -66.9 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [](https://doi.org/https://www.epa.gov/eco-research/level-iii-and-iv-ecoregions-continental-united-states)\n- [](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/EPA_Ecoregions_2013_L3)"]]
