tropical forest
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The dataset identifies, characterizes and maps distinct forest landscape types within the evergreen lowland rainforest at the subcontinental scale.
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Geographical distribution of three nuclear clusters (Q1, Q2, Q3) inferred by a Bayesian clustering analysis (STRUCTURE) after evaluating genetic diversity at nine nuSSR over 217 Jacaranda copaia in five regions in the Neotropics (Western Amazonia, Southern Amazonia, Central Amazonia, Guiana Shield, Central America). For more details, see Scotti-Saintagne et al., 2013 Journal of biogeography vol 40 pp 707-719. This work was funded by the EU-funded INCO “SEEDSOURCE” project, by the EU-funded PO-FEDER “ENERGIRAVI” program and the ANR funded Programme “BRIDGE”
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The site Crique Armontabo is composed of four 3km-transects (20m wide). 5183 trees with dbh>=20cm have been recorded by Office national des forêts (ONF). Fauna inventories have been made by Office national de la chasse et de la faune sauvage (ONCFS) few days after. No under-storey plants inventory available. Soils have been described using 12 samples (1.20m depth max.). Laboratory analyses are available for one soil-profile.
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The site Paracou is composed of two 3km-transects (20m wide). 2438 trees with dbh>=20cm have been recorded by Office national des forêts (ONF). No fauna inventories. No under-storey plants inventory. Soils have been described using 6 samples (1.20m depth max.). No laboratory analysis available for soils.
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The site Saut Parasol is composed of four 3km-transects (20m wide). 4423 trees with dbh>=20cm have been recorded by Office national des forêts (ONF). Fauna inventories have been made by Office national de la chasse et de la faune sauvage (ONCFS) few days after. 716 under-storey plants have been recorded on 21 25m²-plots by Institut de recherche pour le développement (IRD). Soils have been described using 20 samples (1.20m depth max.). Laboratory analysis are available for one soil-profile.
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The experimental site of Guyaflux in the Paracou forest (Sinnamary, French Guiana) has been created in 2003 and is set up for at least 20 years. Guyaflux has several aims : 1. to characterise the greenhouse gases exchanges between the forest ecosystem and the atmosphere. 2. to assess the contribution of Guianese tropical humid forest ecosystem to the biospheric carbon sink. 3. to assess the impact of environmental constraints on carbon footprint. 4. to analyze the contribution of different compartments of the ecosystem (soil, subsoil, canopy) to storage and water and carbon flows. 5. to model the primary productivity of this ecosystem by linking carbon flow and tree growth. 6. to assess interactions between water cycle, carbon cycle and major soil minerals (nitrogen and phosphorus) The experimental set-up is composed of a 55m-high flux tower, which measures gases exchanges in real-time.Several data types are registrated : microclimatic data, carbon and water flows between forest ecosystem and atmosphere, CO2, CH4, H2O, water content of the soil, trees growth, evapo-transpiration from the trees...To obtain the flows of water and carbon, the turbulent correlations method is used. The project owner is Institut national de la recherche agronomique (INRA). NORELEC is the master builder of the tower. The Guyaflux project received 55% of its funding by INRA and 45% by Ministry of Research and European Union.
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The site Régina is composed of two 3km-transects (20m wide). 1958 trees with dbh>=20cm have been recorded by Office national des forêts (ONF). No fauna inventories available. 284 under-storey plants have been recorded on 14 25m²-plots by Institut de recherche pour le développement (IRD). Soils have been described using 13 samples (1.20m depth max.) and two soil pits (1.50m depth). Laboratory analyses are available for one profile and for the two soil pits
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Guyafor is a network of permanent forest plots installed in French Guiana. The site of Montagne Tortue covers a 19,2ha area. It is composed of 3 plots managed by ONF. 9210 trees are being followed. 5 campaignes of inventories have been made in 2002, 2005, 2007, 2009, 2010.
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The site Centre Spatial Guyanais (CSG) is composed of four 3km-transects (20m wide). 5007 trees with dbh>=20cm have been recorded by Office national des forêts (ONF). Fauna inventories have been made by Office national de la chasse et de la faune sauvage (ONCFS) few days after. No under-storey plants inventory available. Soils have been described using 21 samples (1.20m depth max.). No laboratory analysis available for soils.
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Guyafor is a network of permanent forest plots installed in French Guiana. The site of Laussat covers a 4ha area. It is composed of one plot, managed by CIRAD. 2334 trees are being followed. A first inventory has been made in 2009
Guyane-SIG