Tropical and subtropical histosol distribution

Mangroves; Climate change; Peatland
Climate change; Energy and low carbon development
English
Center for International Forestry Research (CIFOR)
2017

This dataset shows the global distribution of histosols that cover the tropics and subtropics (38° N to 56° S; 161° E to 117° W), excluding small islands. It was mapped in 236 meters spatial resolution by combining a hydrological model and annual time series of satellite-derived estimates of soil moisture to represent water flow and surface wetness, which were then combined with geomorphological data.

Process information: Compared to previous mapping efforts (e.g. remotely sensed through inundation patterns or vegetation cover, or analytically derived through a hydrological model), our method incorporates a higher level of complexity by developing three biophysical indices that capture three key properties of wetlands:

1. The need for sufficient water supply for a long-enough time period;
2. the need for water logged soils; and
3. the need for a geomorphological position where water can be supplied and retained.

Methodologically, histosols are identified using the same method as wetlands but with an important alteration: the surface has to be continuously wet (e.g. minimum wet conditions forced to be positive (pTWImin > 0) and the wettest annual conditions are forced to be above a certain threshold (pTWImax > 500) (Gumbricht 2015). Our model identifies areas with hydrological potential for histosol formation, without considerations of activities in the land that might remove this organic matter (e.g. drainage, fires, etc.).

For the classification of histosols, the model was optimized using Indonesian peat data (peat domes and peat swamps) but ground validation would be needed to measure carbon contents and soil depths to validate that these areas of potential histosol formation are peats, as defined in Page et al. (2011) – 65% of organic carbon content and at least 20 cm of organic matter thickness.

Terms of use
Credit

This dataset applies the Community Norms of Dataverse, where this dataset is originally deposited. These Community Norms, as well as good scientific practices, expect that proper credit is given via citation. No waiver has been selected for this dataset and it is subject to the relevant licensing agreements.

Licensing

These data and documents are licensed under a Creative Commons Attribution 4.0 International license. You may copy, distribute and transmit the data as long as you acknowledge the source through proper data citation.

Citation

SWAMP, 2016, “Tropical and Subtropical Histosol Distribution”, https://doi.org/10.17528/CIFOR/DATA.00029, Center for International Forestry Research (CIFOR), V3.

Please see the individual data files for file-specific citations.

Title

Tropical and subtropical histosol distribution (Version 3)

Author

SWAMP (Center for International Forestry Research [CIFOR])

Citation

SWAMP, 2016, “Tropical and Subtropical Histosol Distribution”, https://doi.org/10.17528/CIFOR/DATA.00029, Center for International Forestry Research (CIFOR), V3.

Please see the individual data files for file-specific citations.

Dataset persistent ID

doi:10.17528/CIFOR/DATA.00029

Contact

Email Us

Tropical and subtropical histosol distribution data files

Displaying 1 - 2

Notice: Undefined offset: 0 in /home/ft4user/foreststreesagroforestry.org/wp-content/themes/FTA/page-templates/datasets-swamp-data4.php on line 203

Notice: Undefined property: stdClass::$description in /home/ft4user/foreststreesagroforestry.org/wp-content/themes/FTA/page-templates/datasets-swamp-data4.php on line 209

Notice: Undefined offset: 0 in /home/ft4user/foreststreesagroforestry.org/wp-content/themes/FTA/page-templates/datasets-swamp-data4.php on line 203

Notice: Undefined property: stdClass::$description in /home/ft4user/foreststreesagroforestry.org/wp-content/themes/FTA/page-templates/datasets-swamp-data4.php on line 209

Back to top

Sign up to our monthly newsletter

Connect with us