Razakamanarivo, H.; Razafimbelo, T.; Andriamananjara, A.; Rianahary, A.; Razafindrakoto, M.; Harinirina, A.
Belowground carbon stock data in the Ankeniheny Zahamena forest corridor, Madagascar
(ESPA P4GES)
Cite this dataset as:
Razakamanarivo, H.; Razafimbelo, T.; Andriamananjara, A.; Rianahary, A.; Razafindrakoto, M.; Harinirina, A. (2017). Belowground carbon stock data in the Ankeniheny Zahamena forest corridor, Madagascar. NERC Environmental Information Data Centre. https://doi.org/10.5285/993c5778-e139-4171-a57f-7a0f396be4b8
Download/Access
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This dataset is made available under the terms of the Open Government Licence
https://doi.org/10.5285/993c5778-e139-4171-a57f-7a0f396be4b8
Data comprise root weight (fresh and dry), root biomass and carbon stock, root mat measurements, root architecture, litter measurements and pivot, stump and surface root data for trees selected using the Voronoi or Pit method and sampled in the Ankeniheny Zahamena forest corridor, the remains of the evergreen forest of eastern Madagascar.
Data were collected as part of a project funded under the Ecosystem Services for Poverty Alleviation (ESPA) programme. Work package 4 P4GES project, grant references: NE/K008692/1, NE/K010115/1, and NE/K010220-1
Data were collected as part of a project funded under the Ecosystem Services for Poverty Alleviation (ESPA) programme. Work package 4 P4GES project, grant references: NE/K008692/1, NE/K010115/1, and NE/K010220-1
Publication date: 2017-03-03
View numbers valid from 01 June 2023 Download numbers valid from 20 June 2024 (information prior to this was not collected)
Format
Comma-separated values (CSV)
Spatial information
Study area
Spatial representation type
Tabular (text)
Spatial reference system
WGS 84
Temporal information
Temporal extent
2013-06-01 to 2017-02-28
Provenance & quality
Full materials and methods available from Supporting Information (Manual_2_Belowground_Root_Survey)
A survey was conducted in humid tropical forest in Ankeniheny-Zahamena corridor (CAZ), located on the eastern Madagascar. This area, extends over 370,032 hectares (ha), is located between 48° 49' to 49°03 ' East and 17° 30' to 17° 43' south. Four zones of interest (ZOIs) were selected for the purposes of this study: Lakato (ZOI1), Andasibe (ZOI2), Anjahamana (ZOI3) and Didy (ZOI4). The selection of four zones was based on a range of biophysical criterias: altitude, slope and other biophysical criterias as bioclimate zone, length of dry season, soil type. Moreover, others criterias were considered such as the deforestation history and access.
In each zone, some sites were selected. Site is defined as a unit of sampling where field activities were done. The selection of sites was based on a number of criterias including:
- Land use characterization: closed canopy, tree fallow, shrub fallow and tany maty or degraded grassland
- Other criteria defined by biophysical workpackages (WP2 (Hydrology workpackage) &WP5 (biodiversity workpackage)): Slope of site should be less than 45 degrees.
The Voronoi polygon is the polygon of occupancy and the elementary space which is formed by the intersection of the perpendicular lines that pass through the midpoints of the lines connecting the center of the sampled tree to the center of the nearest neighboring trees. Here a simplified voronoi was used because of tropical forest complexity, where trees have different ages and different dimensions. Large trees are neighbours of small trees.
In order to estimate the root biomass around the trees, we carried out an excavation of the roots in pits neighbouring the target tree where there is no tree.
A survey was conducted in humid tropical forest in Ankeniheny-Zahamena corridor (CAZ), located on the eastern Madagascar. This area, extends over 370,032 hectares (ha), is located between 48° 49' to 49°03 ' East and 17° 30' to 17° 43' south. Four zones of interest (ZOIs) were selected for the purposes of this study: Lakato (ZOI1), Andasibe (ZOI2), Anjahamana (ZOI3) and Didy (ZOI4). The selection of four zones was based on a range of biophysical criterias: altitude, slope and other biophysical criterias as bioclimate zone, length of dry season, soil type. Moreover, others criterias were considered such as the deforestation history and access.
In each zone, some sites were selected. Site is defined as a unit of sampling where field activities were done. The selection of sites was based on a number of criterias including:
- Land use characterization: closed canopy, tree fallow, shrub fallow and tany maty or degraded grassland
- Other criteria defined by biophysical workpackages (WP2 (Hydrology workpackage) &WP5 (biodiversity workpackage)): Slope of site should be less than 45 degrees.
The Voronoi polygon is the polygon of occupancy and the elementary space which is formed by the intersection of the perpendicular lines that pass through the midpoints of the lines connecting the center of the sampled tree to the center of the nearest neighboring trees. Here a simplified voronoi was used because of tropical forest complexity, where trees have different ages and different dimensions. Large trees are neighbours of small trees.
In order to estimate the root biomass around the trees, we carried out an excavation of the roots in pits neighbouring the target tree where there is no tree.
Licensing and constraints
This dataset is made available under the terms of the Open Government Licence
Cite this dataset as:
Razakamanarivo, H.; Razafimbelo, T.; Andriamananjara, A.; Rianahary, A.; Razafindrakoto, M.; Harinirina, A. (2017). Belowground carbon stock data in the Ankeniheny Zahamena forest corridor, Madagascar. NERC Environmental Information Data Centre. https://doi.org/10.5285/993c5778-e139-4171-a57f-7a0f396be4b8
© Laboratoire des Radio Isotopes, Université d'Antananarivo
Acknowledgement of the Laboratoire des Radio Isotopes, Université d'Antananarivo is required for products derived from these data
Related
This dataset is included in the following collections
Can Paying for Global Ecosystem Services reduce poverty? (P4GES)
Supplemental information
Correspondence/contact details
Herintsitohaina Razakamanarivo
Laboratoire des Radio Isotopes, Université d'Antananarivo
Route d'Andraisoro
Antananarivo
BP.3383
MADAGASCAR
herintsitohaina.razakamanarivo@gmail.com
Antananarivo
BP.3383
MADAGASCAR
Authors
Razakamanarivo, H.
Laboratoire des Radio Isotopes, Université d'Antananarivo
Razafimbelo, T.
Laboratoire des Radio Isotopes, Université d'Antananarivo
Andriamananjara, A.
Laboratoire des Radio Isotopes, Université d'Antananarivo
Rianahary, A.
Laboratoire des Radio Isotopes, Université d'Antananarivo
Razafindrakoto, M.
Laboratoire des Radio Isotopes, Université d'Antananarivo
Harinirina, A.
Laboratoire des Radio Isotopes, Université d'Antananarivo
Other contacts
Custodian
NERC EDS Environmental Information Data Centre
info@eidc.ac.uk
Publisher
NERC Environmental Information Data Centre
info@eidc.ac.uk
Additional metadata
Keywords
Funding
Natural Environment Research Council Award: NE/K008692/1
Last updated
01 March 2024 11:27