Esse conjunto de dados fornece mapas globais consistentes e harmonizados no tempo da densidade de carbono da biomassa acima e abaixo do solo para o ano de 2010 com uma resolução espacial de 300 m. O mapa de biomassa acima do solo integra mapas específicos de cobertura da terra, detectados remotamente, de biomassa de floresta, pastagem, lavoura e tundra. Os mapas de entrada foram reunidos da literatura publicada e, quando necessário, atualizados para abranger a extensão focal ou o período. O mapa de biomassa subterrânea integra mapas correspondentes derivados de cada mapa de biomassa acima do solo e modelos empíricos específicos de cobertura da terra. Os mapas acima e abaixo do solo foram integrados separadamente usando mapas auxiliares de porcentagem de cobertura de árvores e cobertura do solo e uma árvore de decisão baseada em regras. Também são fornecidos mapas que mostram a incerteza acumulada das estimativas no nível do pixel.
Observação do provedor: o conjunto de dados de biomassa de carbono do Centro Mundial de Monitoramento da Conservação (WCMC, na sigla em inglês) do Programa das Nações Unidas para o Meio Ambiente (PNUMA) representa condições entre 1982 e 2010, dependendo do tipo de cobertura da terra. Os padrões relativos dos estoques de carbono são bem representados com esse conjunto de dados. O conjunto de dados de biomassa de carbono da NASA/ORNL representa as condições de biomassa para 2010, com estimativas de incerteza no nível do pixel.
A biomassa adicional de tipos de cobertura da terra não dominantes é representada em cada pixel. Para mais informações, consulte os artigos que descrevem cada conjunto de dados: WCMC(Soto-Navarro et al. 2020) e NASA/ORNL (Spawn et al. 2020).
Bandas
Tamanho do pixel 300 metros
Bandas
Nome
Unidades
Mín.
Máx.
Tamanho do pixel
Descrição
agb
Mg/ha
0*
129*
metros
Densidade de estoque de carbono da biomassa viva acima do solo da cobertura combinada de plantas lenhosas e herbáceas em 2010. Isso inclui o carbono armazenado em tecidos vegetais vivos localizados acima da superfície da Terra (caules, cascas, galhos, gravetos). Isso não inclui serapilheira ou detritos lenhosos grossos que já estiveram presos a plantas vivas, mas foram depositados e não estão mais vivos.
agb_uncertainty
Mg/ha
0*
85*
metros
Incerteza da densidade de carbono estimada da biomassa viva acima do solo da cobertura combinada de plantas lenhosas e herbáceas em 2010. A incerteza representa o erro padrão cumulativo que foi propagado pelo processo de harmonização usando a soma em quadratura.
bgb
Mg/ha
0*
57*
metros
Densidade de estoque de carbono da biomassa viva subterrânea da cobertura combinada de plantas lenhosas e herbáceas em 2010. Isso inclui o carbono armazenado em tecidos vegetais vivos localizados abaixo da superfície da Terra (raízes). Isso não inclui tecido radicular morto e/ou deslocado, nem matéria orgânica do solo.
bgb_uncertainty
Mg/ha
0*
37*
metros
Incerteza da densidade de carbono estimada da biomassa viva subterrânea da cobertura lenhosa e herbácea combinada em 2010. A incerteza representa o erro padrão cumulativo que foi propagado pelo processo de harmonização usando a soma em quadratura.
Spawn, S.A., Sullivan, C.C., Lark, T.J. et al. Harmonized global maps of above and
belowground biomass carbon density in the year 2010. Sci Data 7, 112 (2020).
doi:10.1038/s41597-020-0444-4
Spawn, S.A., e H.K. Gibbs. 2020. Mapas globais de densidade de carbono da biomassa acima e abaixo do solo para o ano de 2010. ORNL DAAC, Oak Ridge, Tennessee, EUA.
Esse conjunto de dados fornece mapas globais temporalmente consistentes e harmonizados da densidade de carbono da biomassa acima e abaixo do solo para o ano de 2010 com uma resolução espacial de 300 m. O mapa de biomassa acima do solo integra mapas específicos de cobertura da terra, detectados remotamente, de biomassa de floresta, pastagem, lavoura e tundra. Os mapas de entrada foram reunidos da literatura publicada…
[null,null,[],[[["\u003cp\u003eThis dataset provides global maps of aboveground and belowground biomass carbon density for the year 2010 at a 300-meter resolution.\u003c/p\u003e\n"],["\u003cp\u003eIt integrates land-cover specific, remotely sensed maps of woody, grassland, cropland, and tundra biomass, offering insights into carbon storage in various ecosystems.\u003c/p\u003e\n"],["\u003cp\u003eUncertainty estimates are provided for both aboveground and belowground biomass carbon density.\u003c/p\u003e\n"],["\u003cp\u003eThe dataset is in the public domain and available without restriction on use and distribution.\u003c/p\u003e\n"],["\u003cp\u003eIt is accessible through Google Earth Engine for analysis and visualization.\u003c/p\u003e\n"]]],["The dataset from NASA ORNL DAAC provides global maps of aboveground and belowground biomass carbon density for 2010 at a 300-meter resolution. It includes data on living plant tissues above and below the earth's surface, with uncertainty estimates. The aboveground map combines remote sensing data from various land cover types and literature, while the belowground map uses empirical models. Data are accessible via Earth Engine using the snippet `ee.ImageCollection(\"NASA/ORNL/biomass_carbon_density/v1\")`.\n"],null,["# Global Aboveground and Belowground Biomass Carbon Density Maps\n\nDataset Availability\n: 2010-01-01T00:00:00Z--2010-12-31T00:00:00Z\n\nDataset Provider\n:\n\n\n [NASA ORNL DAAC at Oak Ridge National Laboratory](https://doi.org/10.3334/ORNLDAAC/1763)\n\nCadence\n: 1 Year\n\nTags\n:\n [aboveground](/earth-engine/datasets/tags/aboveground) [biomass](/earth-engine/datasets/tags/biomass) [carbon](/earth-engine/datasets/tags/carbon) [density](/earth-engine/datasets/tags/density) [forest](/earth-engine/datasets/tags/forest) [forest-biomass](/earth-engine/datasets/tags/forest-biomass) [nasa](/earth-engine/datasets/tags/nasa) [ornl](/earth-engine/datasets/tags/ornl) [vegetation](/earth-engine/datasets/tags/vegetation) \nbelowground \n\n#### Description\n\nThis dataset provides temporally consistent and harmonized global maps of aboveground and\nbelowground biomass carbon density for the year 2010 at a 300-m spatial resolution. The\naboveground biomass map integrates land-cover specific, remotely sensed maps of woody,\ngrassland, cropland, and tundra biomass. Input maps were amassed from the published literature\nand, where necessary, updated to cover the focal extent or time period. The belowground biomass\nmap similarly integrates matching maps derived from each aboveground biomass map and land-cover\nspecific empirical models. Aboveground and belowground maps were then integrated separately\nusing ancillary maps of percent tree cover and landcover and a rule-based decision tree. Maps\nreporting the accumulated uncertainty of pixel-level estimates are also provided.\n\nProvider's note: The UN Environment Programme World Conservation Monitoring\nCentre (UNEP-WCMC) carbon biomass dataset\nrepresents conditions between 1982 and 2010 depending on land cover type. The relative patterns\nof carbon stocks are well represented with this dataset. The [NASA/ORNL carbon biomass dataset](https://daac.ornl.gov/VEGETATION/guides/Global_Maps_C_Density_2010.html)\nrepresents biomass conditions for 2010, with uncertainty estimates at the pixel-level.\nAdditional biomass of non-dominant land cover types are represented within each pixel. For more\ndetailed information, please refer to the papers describing each dataset: [WCMC](/earth-engine/datasets/catalog/WCMC_biomass_carbon_density_v1_0)\n[(Soto-Navarro et al. 2020)](https://royalsocietypublishing.org/doi/full/10.1098/rstb.2019.0128)\nand NASA/ORNL [(Spawn et al. 2020)](https://www.nature.com/articles/s41597-020-0444-4).\n\n### Bands\n\n\n**Pixel Size**\n\n300 meters\n\n**Bands**\n\n| Name | Units | Min | Max | Pixel Size | Description |\n|-------------------|-------|-----|-------|------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| `agb` | Mg/ha | 0\\* | 129\\* | meters | Aboveground living biomass carbon stock density of combined woody and herbaceous cover in 2010. This includes carbon stored in living plant tissues that are located above the earth's surface (stems, bark, branches, twigs). This does not include leaf litter or coarse woody debris that were once attached to living plants but have since been deposited and are no longer living. |\n| `agb_uncertainty` | Mg/ha | 0\\* | 85\\* | meters | Uncertainty of estimated aboveground living biomass carbon density of combined woody and herbaceous cover in 2010. Uncertainty represents the cumulative standard error that has been propagated through the harmonization process using summation in quadrature. |\n| `bgb` | Mg/ha | 0\\* | 57\\* | meters | Belowground living biomass carbon stock density of combined woody and herbaceous cover in 2010. This includes carbon stored in living plant tissues that are located below the earth's surface (roots). This does not include dead and/or dislocated root tissue, nor does it include soil organic matter. |\n| `bgb_uncertainty` | Mg/ha | 0\\* | 37\\* | meters | Uncertainty of estimated belowground living biomass carbon density of combined woody and herbaceous cover in 2010. Uncertainty represents the cumulative standard error that has been propagated through the harmonization process using summation in quadrature. |\n\n\\* estimated min or max value\n\n### Terms of Use\n\n**Terms of Use**\n\nThis dataset is in the public domain and is available\nwithout restriction on use and distribution. See [NASA's\nEarth Science Data \\& Information Policy](https://www.earthdata.nasa.gov/engage/open-data-services-and-software/data-and-information-policy)\nfor additional information.\n\n### Citations\n\nCitations:\n\n- Spawn, S.A., Sullivan, C.C., Lark, T.J. et al. Harmonized global maps of above and\n belowground biomass carbon density in the year 2010. Sci Data 7, 112 (2020).\n [doi:10.1038/s41597-020-0444-4](https://doi.org/10.1038/s41597-020-0444-4)\n- Spawn, S.A., and H.K. Gibbs. 2020. Global Aboveground and Belowground\n Biomass Carbon Density Maps for the Year 2010. ORNL DAAC, Oak Ridge, Tennessee, USA.\n\n### DOIs\n\n- \u003chttps://doi.org/10.3334/ORNLDAAC/1763\u003e\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.ImageCollection('NASA/ORNL/biomass_carbon_density/v1');\n\nvar visualization = {\n bands: ['agb'],\n min: -50.0,\n max: 80.0,\n palette: ['d9f0a3', 'addd8e', '78c679', '41ab5d', '238443', '005a32']\n};\n\nMap.setCenter(-60.0, 7.0, 4);\n\nMap.addLayer(dataset, visualization, 'Aboveground biomass carbon');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/NASA/NASA_ORNL_biomass_carbon_density_v1) \n[Global Aboveground and Belowground Biomass Carbon Density Maps](/earth-engine/datasets/catalog/NASA_ORNL_biomass_carbon_density_v1) \nThis dataset provides temporally consistent and harmonized global maps of aboveground and belowground biomass carbon density for the year 2010 at a 300-m spatial resolution. The aboveground biomass map integrates land-cover specific, remotely sensed maps of woody, grassland, cropland, and tundra biomass. Input maps were amassed from the published literature ... \nNASA/ORNL/biomass_carbon_density/v1, aboveground,biomass,carbon,density,forest,forest-biomass,nasa,ornl,vegetation \n2010-01-01T00:00:00Z/2010-12-31T00:00:00Z \n-61.1 -180 84 180 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [https://doi.org/10.3334/ORNLDAAC/1763](https://doi.org/https://doi.org/10.3334/ORNLDAAC/1763)\n- [https://doi.org/10.3334/ORNLDAAC/1763](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/NASA_ORNL_biomass_carbon_density_v1)"]]
