From 1 - 4 / 4
  • The image covers the experimental sites Counami, Paracou, Piste Saint Elie, Crique Plomb and Montagne Plomb in French Guiana.

  • The image covers the experimental sites Counami, Paracou, Piste Saint Elii, Crique Passoura, Crique Plomb and Montagne Plomb in French Guiana.

  • Guyadiv is a network of permanent forest plots in French Guiana. The experimental site of Piste de St Elie is composed of one 10-ha plot (100 m x 1000 m), an adjacent 2-ha plot (100 m x 200 m), and three distant plots: a 5-ha (100 m x 500 m) and two 1-ha (19 ha total area). These plots are located in the ECEREX area of Piste Saint Elie. The botanists who have set-up the plots and contributed to identification and tree measurements are D. Sabatier, M.-F. Prévost, J.-F. Molino, B. Riéra, E. Fonty and C. Madelaine. During the inventories, the data recorded are: geographical position of the trees, dbh and identification by botanical sampling. On all 19 plots, all trees above10 cm dbh were censused. On a 1-ha plot (20 m x 500 m) nested within the 10-ha plot, all trees above 2 cm dbh were also censused. The first year of inventory of trees with dbh >= 10 cm was 1986, 1987, 1988 or 1991 (depending on the plots), and 1994 for trees with dbh between 2 and 10 cm. A second inventory was conducted in 2003 on the 10-ha plot (including trees with dbh between 2 and 10 cm) and the two distant 1-ha plots.

  • Guyadiv is a network of permanent forest plots installed over the years in French Guiana. In these plots, all trees above 10 cm dbh are identified, measured and mapped. Several plots are part of permanent research stations (Paracou, Nouragues, Piste Saint Elie). The diversity of arborescent species flora is studied (floristic list). This flora diversity depends on the forest vegetation (architecture, structure, biomass, dynamic in the long term, dynamic after perturbation and biogeography) which is also studied. The contribution of flora diversity to forest vegetation (carbon cycle issue...) is another topic approach in the studies. Analyses are conducted at different spatial scales (local - intra site, regional, subcontinental via ATDN network) and temporal scale (impact of logging, impact of old settlements : COUAC project). We only have the point coordinates and not the precise demarcation for most of the sample plots. In order to calculate the bounding box for these plots, we have expanded the point location between 100 and 600 meters in each direction. Information specific of each site (Paracou, Montagne Plomb, Crique Plomb, Piste Saint Elie, Counami...) is available. Please refer to the attached metadata sheets. This network relies greatly on the IRD Herbier de Guyane (CAY) and its network of international specialists.