Guyadiv is a network of permanent forest plots installed in French Guiana. The ONF experimental site of Montagne Tortue is composed of 2 plots : one 1ha-plot and one 110x115m-plot. A complete inventory has been made in 2002 : 982 trees with dbh>=10cm have been registrated. 494 and 476 species have been identified. 98,2% and 99,4% of the registrated trees have been identified to the species level. We only have the point coordinates and not the precise demarcation of the sample plots. In order to calculate the bounding box for these plots, we have expanded the point location 300 meters in each direction.

The satellite image covers partly the experimental site Paracou in French Guiana.

Guyadiv is a network of permanent forest plots installed in French Guiana. The Guyadiv plan in Crique Plomb and Montagne Plomb sites implements several types of plots and sampling methods: A first group of plots belongs to the Paget's plan, initiated in 1998. These 30x40m-plots are used for floristic and structural inventories.Then, 8 1ha-plots are used for floristic inventories concerning trees with DBH>10cm, since 2002 (campaigns in 2002, 2004 and 2005). These plots are located on greatly contrasted forest facies (high-density forest on thinned soils, forest on dismantled ferricrust, forest on deap DVL soils). The third type of sampling method is a "cluster points" (points-grappe) plan for floristic linear inventories. 18 points have been carried out, that is to say almost 8500m or 10ha of statements (ca. 5500 trees). We only have the point coordinates and not the precise demarcation of the sample plots. In order to calculate the bounding box for these plots, we have expanded the point location 600 meters in each direction.

Les plans de prévention des risques (PPR) constituent l'instrument essentiel de l'État en matière de prévention des risques. Leur objectif est le contrôle du développement dans les zones exposées à un risque. L'élaboration d'un plan de prévention des risques génère plusieurs séries de données géographiques. Ce jeux de données géographiques contient le zonage linéaire qui couvre spécifiquement les côtes rocheuses, à partir duquel peuvent être interprétées les enveloppes des zones réglementées correspondante à l'aléa fort de submersion. Les côtes rocheuses de Kourou, surtout celles orientées au Nord et à l'Est, restent exposées à des effets possibles de destruction par projections de paquets de mer dus aux déferlantes et aux brisants de fortes houles, sans qu'il soit possible de représenter cartographiquement les zones d'impact, évaluées à 5 m NGG d'altitude pour les portions de côtes rocheuses escarpées, et à 4 m NGG ou 20 m de profondeur pour les portions de côtes rocheuses basses. Zonage approuvé par l'arrêté préfectoral N° 2155/SIRACEDPC du 23 octobre 2002.

Les plans de prévention des risques (PPR) constituent l'instrument essentiel de l'État en matière de prévention des risques. Leur objectif est le contrôle du développement dans les zones exposées à un risque. L'élaboration d'un plan de prévention des risques génère plusieurs séries de données géographiques. Ce jeux de données géographiques contient les principaux périmètres englobants du PPRNi de Macouria(périmètre d'étude, périmètre de prescription, périmètre réglementé). Périmètres approuvé par l'arrêté préfectoral N°1143/SIRACEDPC du 09 juillet 2002 et modifié par l'arrêté préfectoral N°546/DEAL/2D-3B du 22 avril 2013 pour le secteur de sablance

Carte scannée du réseau d'eaux usées d'un lotissement sur le bourg de la commune d'Iracoubo.

Carte scannée de la bathymétrie des abords de Cayenne.

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.

Guyadiv is a network of forest inventory plots installed in French Guiana. In Paracou experimental station 2 sets of plots pertain to the Guyadiv network Transects (> 2cm dbh) Ten 20x250m-transects have been inventoried within ten larger experimental plots. In those plots all stems > 2cm dbh have been censused (mapped and identified to species level). Plots were measured twice (once between 1994-1998, and once in 2002) 3 transects in plots subjected to treatment 1 (commercial logging only, of trees of DBH>50cm between 1986 and 1988, on average 10 stems per ha) 3 transects in plots subjected to treatment 2 (commercial logging as treatment 1 + thinning by poison-girdling of all non-commercial species of DBH≥40cm between 1986 and 1988) 3 transects in control plots (without treatments) 1 transect in plots subjected to treatment 3 (commercial logging + logging for fuelwood of all non-commercial treed of DBH between 40 and 50 cm + thinning of trees of more than 50cm DBH between 1986 and 1988) In addition 10 0.5 ha plots within the Guyaflux foot print have been set-up in which all trees > 10cm dbh have been inventoried.

Guyafor is a network of permanent forest plots installed in French Guiana. The site of Risquetout covers a 23,7ha area. It is composed of 4 plots managed by ONF. 7174 trees are being followed since 1995. 9 campaignes of inventories have been made in 1995, 1999, 2001, 2002, 2003, 2004, 2006, 2008, 2009.