USGS/GAP/PR/2001
The GAP/LANDFIRE National Terrestrial Ecosystems data represents a detailed vegetation and land cover classification for the Conterminous U.S., Alaska, Hawaii, and Puerto Rico.GAP/LF 2011 Ecosystems for the Conterminous U.S. is an update of the National Gap Analysis Program Land Cover Data - Version 2.2. Alaska ecosystems have been updated by LANDFIRE to 2012 conditions (LANDFIRE 2012). Hawaii and Puerto Rico data represent the 2001 time-frame (Gon et al. 2006, Gould et al. 2008). The classification scheme used for the Alaska and the lower 48 states is based on NatureServe’s Ecological System Classification (Comer et al. 2003), while Puerto Rico and Hawaii’s map legend are based on island specific classification systems (Gon et al. 2006, Gould et al. 2008).
GAP/LANDFIRE国家陆地生态系统数据代表了美国本土、阿拉斯加、夏威夷和波多黎各的详细植被和土地覆盖分类。美国本土的GAP/LF 2011生态系统是国家差距分析计划土地覆盖数据-2.2版的更新。阿拉斯加的生态系统已被LANDFIRE更新至2012年的状况（LANDFIRE 2012）。夏威夷和波多黎各的数据代表2001年的时间框架（Gon等人，2006年，Gould等人，2008年）。阿拉斯加和48个州的分类方案是基于NatureServe的生态体系分类（Comer等人，2003年），而波多黎各和夏威夷的地图图例是基于岛屿的具体分类系统（Gon等人，2006年，Gould等人，2008年）。
Dataset Availability
2001-01-01T00:00:00 - 2002-01-01T00:00:00
Dataset Provider
Collection Snippet
Copied
ee.Image("USGS/GAP/PR/2001")
Resolution
30 meters
Bands Table
| Name | Description | Min | Max |
| landcover | Landcover class descriptions | 1 | 70 |
Class Table: landcover
| Value | Color | Color Value | Description |
| 1 | # | Mature secondary lowland dry alluvial semideciduous forest | |
| 2 | # | Young secondary lowland dry alluvial semideciduous forest | |
| 3 | # | Lowland dry alluvial shrubland and woodland | |
| 4 | # | Mature secondary lowland dry limestone evergreen forest | |
| 5 | # | Mature secondary lowland dry limestone semideciduous forest | |
| 6 | # | Young secondary lowland dry limestone semideciduous forest | |
| 7 | # | Lowland dry limestone woodland and shrubland | |
| 8 | # | Lowland dry limestone shrubland | |
| 9 | # | Lowland dry cactus shrubland | |
| 10 | # | Coastal dwarf woodland and shrubland | |
| 11 | # | Lowland dry limestone cliffside semideciduous forest | |
| 12 | # | Lowland dry limestone cliffside shrubland and woodland | |
| 13 | # | Mature secondary lowland dry noncalcareous semideciduous forest | |
| 14 | # | Young secondary lowland dry noncalcareous semideciduous forest | |
| 15 | # | Lowland dry noncalcareous shrubland and woodland | |
| 16 | # | Mature secondary dry and moist serpentine semideciduous forest | |
| 17 | # | Young secondary dry and moist serpentine semideciduous forest | |
| 18 | # | Dry and moist serpentine woodland and shrubland | |
| 19 | # | Abandoned dry forest plantation | |
| 20 | # | Mature secondary lowland moist evergreen alluvial forest | |
| 21 | # | Young secondary lowland moist evergreen alluvial forest | |
| 22 | # | Lowland moist alluvium shrubland and woodland | |
| 23 | # | Mature secondary moist limestone evergreen and semideciduous forest | |
| 24 | # | Young secondary moist limestone evergreen and semideciduous forest | |
| 25 | # | Moist limestone shrubland and woodland | |
| 26 | # | Mature secondary lowland moist evergreen noncalcareous forest | |
| 27 | # | Young secondary lowland moist evergreen noncalcareous forest | |
| 28 | # | Lowland moist noncalcareous shrubland and woodland | |
| 29 | # | Lowland moist abandoned and active coffee plantations | |
| 30 | # | Mature secondary montane wet alluvial evergreen forest | |
| 31 | # | Young secondary montane wet alluvial evergreen forest | |
| 32 | # | Montane wet alluvial shrubland and woodland | |
| 33 | # | Mature secondary montane wet noncalcareous evergreen forest | |
| 34 | # | Mature primary and secondary montane wet noncalcareous evergreen Tabonuco forest | |
| 35 | # | Mature primary and secondary montane wet noncalcareous evergreen Palo Colorado cloud forest | |
| 36 | # | Mature primary and secondary montane wet noncalcareous evergreen Sierra Palm forest | |
| 37 | # | Mature primary and secondary montane wet noncalcareous evergreen elfin woodland cloud forest | |
| 38 | # | Young secondary montane wet noncalcareous evergreen forest | |
| 39 | # | Montane wet evergreen noncalcareous shrubland and woodland | |
| 40 | # | Mature secondary montane wet serpentine evergreen forest | |
| 41 | # | Young secondary montane wet serpentine evergreen forest | |
| 42 | # | Wet serpentine shrubland and woodland | |
| 43 | # | Montane wet evergreen abandoned and active coffee plantation | |
| 44 | # | Mangrove forest and shrubland | |
| 45 | # | Freshwater Pterocarpus swamp | |
| 46 | # | Lowland dry riparian forest | |
| 47 | # | Lowland dry riparian shrubland and woodland | |
| 48 | # | Dry grasslands and pastures | |
| 49 | # | Dry cactus grassland and shrubland | |
| 50 | # | Moist grasslands and pastures | |
| 51 | # | Emergent herbaceous nonsaline wetlands | |
| 52 | # | Emergent herbaceous saline wetlands | |
| 53 | # | Seasonally flooded herbaceous nonsaline wetlands | |
| 54 | # | Seasonally flooded herbaceous saline wetlands | |
| 55 | # | Hay and row crops | |
| 56 | # | Woody agriculture and plantations: Palm plantations | |
| 57 | # | Rocky cliffs and shelves | |
| 58 | # | Gravel beaches and stony shoreline | |
| 59 | # | Fine to coarse sandy beaches@ mixed sand and gravel beaches | |
| 60 | # | Riparian and other natural barrens | |
| 61 | # | Salt and mudflats | |
| 62 | # | Salt production | |
| 63 | # | High-density urban development | |
| 64 | # | Low-density urban development | |
| 65 | # | Artificial barrens | |
| 66 | # | Freshwater | |
| 67 | # | Salt water | |
| 68 | # | Lowland moist riparian forest | |
| 69 | # | Lowland moist riparian shrubland and woodland | |
| 70 | # | Aquaculture |
使用和引用：
Most U.S. Geological Survey (USGS) information resides in the public domain and may be used without restriction. Additional information on Acknowledging or Crediting USGS as Information Source is available.
Gould, W. A. C. Alarcon, B. Fevold, M.E. Jimenez, S. Martinuzzi, G. Potts, M. Quinones, M. Solorzona, E. Ventosa. 2008. The Puerto Rico Gap Analysis Project. Volume 1: Land cover, vertebrate species distribution, and land stewardship. Gen. Tech. Rep. IITF-GRT-39. Rio Piedras, Pr. USDA, Forest Service, International Institute of Tropical Forestery. 165. p.
代码：
var dataset = ee.Image('USGS/GAP/PR/2001'); var visualization = { bands: ['landcover'], min: 1.0, max: 70.0, }; Map.setCenter(-66.51, 18.23, 8); Map.addLayer(dataset, visualization, 'GAP Purto Rico');
