Badan Perlindungan Lingkungan Amerika Serikat (USEPA) menyediakan set data Ecoregions untuk berfungsi sebagai framework spasial untuk penelitian, penilaian, pengelolaan, dan pemantauan ekosistem dan komponen ekosistem. Wilayah ekologi menunjukkan area dengan kesamaan umum dalam ekosistem dan dalam jenis, kualitas, dan kuantitas sumber daya lingkungan. Wilayah serbaguna ini sangat penting untuk menyusun dan menerapkan strategi pengelolaan ekosistem di seluruh lembaga federal, lembaga negara bagian, dan organisasi nonpemerintah yang bertanggung jawab atas berbagai jenis sumber daya dalam area geografis yang sama.
Pendekatan yang digunakan untuk menyusun peta ini didasarkan pada premis bahwa wilayah ekologis dapat diidentifikasi melalui analisis pola fenomena biotik dan abiotik, termasuk geologi, fisiografi, vegetasi, iklim, tanah, penggunaan lahan, satwa liar, dan hidrologi. Kepentingan
relatif setiap karakteristik bervariasi dari satu wilayah
ekologis ke wilayah lainnya.
Set data ini mencakup skema klasifikasi ekoregion USEPA, serta skema dari Commission for Environmental Cooperation (CEC). Ekoregion bersifat hierarkis,
dengan Level IV sebagai yang paling mendetail dan Level I menentukan
klasifikasi terluas. Karena hierarki ini, fitur Level III mempertahankan informasi dari Level I dan II. CEC membagi seluruh Amerika Utara ke dalam ekoregion yang berbeda untuk Level I, II, dan III, sedangkan USEPA hanya melakukannya untuk Amerika Serikat di Level III dan Level IV. Kolom yang diawali dengan 'us' termasuk dalam skema USEPA, dan kolom yang diawali dengan 'na' termasuk dalam skema CEC. Versi set data yang di-ingest ini hanya berisi fitur untuk Amerika Serikat yang berbatasan (yaitu, Alaska dan Hawaii tidak disertakan). Metode yang digunakan untuk menentukan ekoregion dijelaskan dalam Omernik (1995, 2004), Omernik dan lainnya (2000), serta Gallant dan lainnya (1989).
*Dihitung oleh penyedia data.
Skema Tabel
Skema Tabel
Nama
Jenis
Deskripsi
l1_key
STRING
Kode dan Nama Level I NA
l2_key
STRING
Kode dan Nama Level II Amerika Utara
l3_key
STRING
Kode dan Nama Level III Amerika Serikat
na_l1code
STRING
Kode untuk Ecoregion Tingkat I (Amerika Utara/CEC)
na_l1name
STRING
Nama untuk Ekoregion Level I (Amerika Utara/CEC)
na_l2code
STRING
Kode untuk Ecoregion Tingkat II (Amerika Utara/CEC)
na_l2name
STRING
Nama untuk Ekoregion Level II (Amerika Utara/CEC)
na_l3code
STRING
Kode untuk Ecoregion Tingkat III (Amerika Utara/CEC)
na_l3name
STRING
Nama untuk Ekoregion Level III (Amerika Utara/CEC)
shape_area
DOUBLE
Area geometri fitur dalam format aslinya
shape_leng
DOUBLE
Panjang tepi dalam geometri fitur dalam format aslinya
us_l3code
STRING
Kode untuk Ecoregion Tingkat III (Amerika Serikat/USEPA)
us_l3name
STRING
Nama untuk Ecoregion Level III (Amerika Serikat/USEPA)
Persyaratan Penggunaan
Persyaratan Penggunaan
Tidak ada batasan penggunaan data domain publik Amerika Serikat ini.
Kutipan
Kutipan:
Komisi Kerja Sama Lingkungan. 1997. Wilayah ekologis Amerika Utara: menuju perspektif umum. Commission for Environmental
Cooperation, Montreal, Quebec, Kanada. 71p. Peta (skala 1:12.500.000).
Direvisi tahun 2006.
McMahon, G., S.M. Gregonis, S.W. Waltman, J.M. Omernik, T.D. Thorson,
J.A. Freeouf, A.H. Rorick, dan J.E. Keys. 2001. Mengembangkan kerangka kerja spasial wilayah ekologis umum untuk Amerika Serikat yang berbatasan dengan Kanada dan Meksiko. Environmental Management 28(3):293-316.
Omernik, J.M. 1987. Wilayah ekologis Amerika Serikat yang berbatasan.
Peta (skala 1:7.500.000). Annals of the Association of American
Geographers 77(1):118-125.
Omernik, J.M. 1995. Ekoregion: Framework spasial untuk pengelolaan lingkungan. Dalam: Penilaian dan Kriteria Biologis: Alat untuk Perencanaan dan Pengambilan Keputusan Sumber Daya Air. Davis, W.S. dan T.P. Simon
(eds.), Lewis Publishers, Boca Raton, FL. hlm. 49-62.
Omernik, J.M. 2004. Perspektif tentang sifat dan definisi wilayah ekologis. Environmental Management 34(Supplement 1):S27-S38.
Omernik, J.M. dan G.E. Griffith. 2014. Wilayah ekologi Amerika Serikat yang berbatasan: evolusi kerangka spasial hierarkis. Environmental
Management 54(6):1249-1266.
FeatureView adalah representasi yang dipercepat dan hanya dapat dilihat dari
FeatureCollection. Untuk mengetahui detail selengkapnya, buka
dokumentasi FeatureView.
Badan Perlindungan Lingkungan Amerika Serikat (USEPA) menyediakan set data Ecoregions untuk berfungsi sebagai framework spasial untuk riset, penilaian, pengelolaan, dan pemantauan ekosistem dan komponen ekosistem. Wilayah ekologi menunjukkan area dengan kesamaan umum dalam ekosistem dan dalam jenis, kualitas, serta kuantitas sumber daya lingkungan. Region tujuan umum ini adalah …
[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)"]]
