Paracou field station

Transcription

1 UMR EcoFoG - CIRAD Aurélie Dourdain 18/11/2015 Paracou field station

2 2 UMR EcoFoG 14/12/2015 Contents Paracou station and facilities The team of Paracou Data collection Data management

3 3 UMR EcoFoG 14/12/2015 Localisation site

4 4 UMR EcoFoG 14/12/2015 Site facilities & description Accomodation on-site : - open air carbet - living facilities - showers, lighting V solar electricity - kitchen facilities - Satellite Internet and phone A registrer Guyaflux tower Database

5 5 UMR EcoFoG 14/12/2015 Team Field inventories : Forestry workers : 7 people, CIRAD Botanist : Pascal Petronelli, CIRAD Student : 1-2 people / year Data analysis & Logistician Database management : Aurélie Dourdain, CIRAD Responsible PI of Paracou Research Station: Bruno Hérault, CIRAD

6 Inventories Equipment - 2 PDA (fieldwork computer) - 2 satellite phone - Emergency box - GPS - Tape - Rainings Labels - Nails - Pens - Meters - Twines - Ladder - Painting - Machete

7 What we have done Few features : 32 inventories between 1984 and plots inventoried 125 Ha > trees More than DBH* measures More than 440 species * DBH : Diameter breast height 1,30 m

8 250 m Example in Paracou and a plot m Buffer (25m) Plot (6,25Ha)

9 Data collection Forest censuses: Localisation (forest, plot, x, y) Recruit ( > 10 cm DBH) Alive (Circumference measurement) Death ( mode of death : standing, fallen ) Periodicity : yearly 2 years Botanical determination Environmental data

10 Data collection : Tree data Tree data An unique ID (all trees with a DBH > 10cm) DBH measurement Tree mapping (coordinate X and Y of each tree) Tree identification (botanical determination and local common names)

11 Tree Data : Diameter Measurement Few variables: «Circonference» : tree circumference (DBH up to 10 cm) «MesuMort» : code for alive status (1 : alive and 0 : dead) 1m30 «idcodemesure» : code for - measurement technique, - quality measurement To resume : - and mode of death MesuMort idcodemesure Meanings 1 (alive) 0 Normal measure at DBH (1,30m) 1 (alive) 1 Elevated measure of 0,5 m 1 (alive) 2 Elevated measure of 1 m 1 (alive) 3 Elevated measure of 1,5 m 1 (alive) 4 Species with a iregular trunk 0 (dead) 0 Mode of death : standing and died alone 0 (dead) 6 Mode of death : uprooted and died alone 0 (dead) 7 Mode of death : killed, uprooted and one of multiple deaths Code 4 : Used for the species with a iregular trunk or fluted. Using a tape measure for large trees with spectacular root growth is not significant.

12 Y coordinate Tree mapping : coordinates X and Y coordinates are tree coordinates as collected in the field. X and Y coordinates are estimated from bottom left-hand corner of the subplot 1 The coordinates information is stored in the standardized X and Y columns in the database We use the GIS projection : WGS84_UTM22N X coordinate

13 Botanical identification Family : Family names following APGIII classification Genus : Genus names following APGIII classification Species : Species names following APGIII classification Vernacular : vernacular names ID vernacular : ID for the vernacular names Example from the database :

14 Data collection : Environmental characterization Soil description (WRB classification, fertility ) Montly rainfall Logging damage Topography Digital elevation model (DEM) Pedology

15 * These steps are accomplished with developed applications From inventory to database Collect data Check of data field Computer Clearance * (it compares with data from the last census) Check in the field Correct mistakes * Data integration * Access DataBase Distributing the DataBase Projects\Guyafor

16 PARACOU Database The conceptual model of the database is organised into 4 main parts built on one main database table taarbre. These parts are shown in the following illustration with informations : - Database taxon ; - The translate interface between local common names and botanical determination ; - Tree mapping ; - Tree measure ;

17 Software : ArcMap 10 Available datas : Spatial data : GIS Paracou - Pedology - Topography - Digital elevation model (DEM) - Logging damage Examples : - Localisation of the trees in the plot - Merging trees and environnemental datas -

18 Data sharing Exchange and training location - UMR «EcoFog» scientists - French and foreigners scientists - Students (University Antilles Guyane ) - Schools and associations Public data Project ~ scientific question

19 19 UMR EcoFoG 14/12/2015 Thanks, Obrigada, Dank u Merci