Google Earth engine (GEE) - Global organic soil area of FAO (1992-2018)

FAO drainage organic soil area （ year ）

Two relevant FAO data sets on drainage organic soils provide the following estimates ：

1. DROSA-A： For agricultural activities （ Farmland and grazing grassland ） Area of organic soil （ ha ）
2. DROSE-A： The carbon of agricultural drainage from organic soils under these land uses (C) And nitrous oxide (N2O) Estimated value （ In gigagrams ）.

The resolution of annual data is 0.0083333 X 0.0083333（ Equator about 1 km ）, Cover 1992 - 2018 Global data for the year .

The estimates in the FAO statistical database follow the Intergovernmental Panel on climate change （IPCC） guide , Tissue sol is used as a representative of organic soil , The annual land cover map is used as a time related component . Besides , Soil characteristics were also used in the analysis 、 Land use and climate information . Carbon emissions can be converted into CO2, Multiply the pixel value by carbon dioxide (CO2) And C The ratio of the molecular weight of (44/12).

Organic soils develop in moist soil ecosystems . They include tropical and Northern peatlands 、 High latitude swamp 、 Ferns and bogs . Organic soils account for only... Of the global land area 3%, But it accounts for% of the total soil carbon 30%, Therefore, it plays an important role in maintaining the carbon balance of the earth . Agriculture is the main cause of drainage of organic soils around the world . The drainage system exposes the organic matter of the organic soil to aerobic conditions , These organic matter will oxidize , Release a large amount of harmful greenhouse gases into the atmosphere (GHG).

DROSA-A and DROSE-A It's in three FAOSTAT Data sets （ Organic soil farming 、 Farmland and grassland ） The basis of national and regional statistics on the spread of drainage organic soils .

Dataset availability

1992-01-01T00:00:00Z - 2018-01-01T00:00:00

Data set provider

​ ​ Food and agriculture organization ​​

Earth engine fragment

​​ee.ImageCollection("FAO/GHG/1/DROSA_A") ​​

The resolution of the
927.67 rice

Band

full name	Company	describe
​​cropland​​	Ha	Organic soil area of farmland （ Histosol ）
​​grassland​​	Ha	Grassland organic soil （ Histosol ） area

Terms of use ：

Terms of use

Food and Agriculture Organization of the United Nations (FAO) Our task is to collect 、 analysis 、 Explain and communicate with nutrition 、 Information about food and agriculture . In this regard , It publishes a number of thematic databases related to FAO responsibilities , And encourage their use for scientific and research purposes . Consistent with the principles of openness and sharing envisaged under the open data license for statistical databases , And in line with FAO's responsibilities , Greenhouse gas emission data from organic soil agricultural activities as FAO statistical database （ FAO food and agriculture data database ） Part of , It is free to the user community .

Citations:

• ​ ​FAO 2020. Drained organic soils 1990 - 2019. Global, regional and country trends. FAOSTAT Analytical Brief Series No 4, FAO, Rome.​​
• Conchedda, G. and Tubiello, F. N.: Drainage of organic soils and GHG emissions: Validation with country data, Earth Syst. Sci. Data Discuss.​ ​10.5194/essd-12-3113-2020​​, 2020

Code ：

 

Log in and copy

      
      

       
       var 
       
       dataset 
       
       = 
       
       ee.
       
       ImageCollection(
       
       "FAO/GHG/1/DROSA_A");
       
       

       
       

       
       var 
       
       visualization 
       
       = {
       
       
  
       
       bands: [
       
       'cropland'],
       
       
  
       
       min: 
       
       1.0,
       
       
  
       
       max: 
       
       60.0,
       
       
  
       
       palette: [
       
       'white', 
       
       'red']
       
       
};
       
       

       
       

       
       Map.
       
       setCenter(
       
       108.0, 
       
       -
       
       0.4, 
       
       6);
       
       

       
       

       
       Map.
       
       addLayer(
       
       dataset, 
       
       visualization, 
       
       "Cropland area drained (Annual)");
      
      
      
      

       
       
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