Your SlideShare is downloading. ×
Ecogeographic land characterization for CWR diversity and gap analysis Workshop - GEOQUAL tool
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

Ecogeographic land characterization for CWR diversity and gap analysis Workshop - GEOQUAL tool

170
views

Published on

Published in: Education

0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
170
On Slideshare
0
From Embeds
0
Number of Embeds
2
Actions
Shares
0
Downloads
3
Comments
0
Likes
0
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. GEOQUAL Tool Mauricio Parra Quijano Ecogeographic land characterization for CWR diversity and gap analysis Training workshop 26–27 February 2014, Room UG08, Learning Centre, University of Birmingham
  • 2. Interface
  • 3. CAPFITOGEN tools • GEOQUAL • ELCmapas • ECOGEO • Representa • Colnucleo • DIVmapas • FIGS_R
  • 4. Why should you evaluate the georeferencing quality of your p data? Coordinates 30 10 100 x km 75 Real location
  • 5. Inaccurate geo-referencing effects 10 km 1 km 5 oC 6 oC 7 oC 8 oC 9 oC
  • 6. Geo-referencing is not only coordinates Collecting site description Nivel Valor Nivel Valor ORIGCTY CRI ORIGCTY CRI ADM1 Punta Arenas ADM1 Punta Arenas ADM2 Buenos Aires ADM2 Pérez Zeledón ADM3 NA ADM3 NA ADM4 NA ADM4 NA
  • 7. GEOQUAL • Is a tool to assign a quality assessment value to each accession which has coordinates (mandatory) and locality description. •User have to introduce data to be evaluated in the modified FAO-Bioversity 2012 format. •GEOQUAL assesses three parameters, COORQUAL, LOCALQUAL and SUITQUAL along with other subparameters. •Parameters are summarized to obtain the parameter TOTALQUAL (0-60) orTOTALQUAL100 (0-100). TOTALQUAL100: Unified quality value of the georeferenced collecting sites 80 0 100
  • 8. COORQUAL Intrinsic quality value of the coordinates. Values range from 0 to 20. Subparameters: • ERRORES: Coordinates values out of the expected range • PRECIS: Coordinates precision on degrees, minutes, seconds (only for sexagesimal format) • GEORBLE: The most detailed collecting site description, the better the coordinates are • INTERTEMP: Precision on coordinates according to the collecting year • GEOREFMETH: Precision according to the method used to obtain the coordinates
  • 9. SUITQUAL This parameter assigns quality values according to the suitability to grow plants in the collecting sites. Values range from 0 to 20. • It considers differences between crop and wild plants (SAMPSTAT) • It uses information about land use from the Global Land Cover map(1 km)
  • 10. SUITQUAL Distance to land 0 > 30 km 10-20 km 5-10 km 0-1 km On land 20
  • 11. SUITQUAL Low resolution om ! zo High resolution
  • 12. LOCALQUAL This parameter compares collecting site description from the passport data and the site extracted from coordinates. • Administrative information comes from GADM (www.gadm.org) • Comparison is achieved between chain of characters (string), obtaining a distance (Levenshtein). Then a threshold is fixed for a number of insertions, deletions or changes. Following this threshold, we assume that one string is equivalent to another. “agrep” function from R • According to the number of matches within each administrative level, a value is assigned from 0 to 20. Level Coordinates1 Coordinates 2 ORIGCTY ISO ADM1 NAME1 VARNAME1 ADM2 NAME2 VARNAME2 ADM3 NAME3 VARNAME3 ADM4 NAME4 VARNAME4
  • 13. LOCALQUAL
  • 14. TOTALQUAL and TOTALQUAL100 TOTALQUAL = COORQUAL + SUITQUAL + LOCALQUAL VALUES RANGE FROM 0 TO 60 TOTALQUAL100 = (TOTALQUAL*60) /100 0 98
  • 15. GEOQUAL on Information Systems 913 selected accessions
  • 16. GEOQUAL en SIERFE 722 selected accessions
  • 17. Thanks mauricio.parra@fao.org http://www.planttreaty.org/es/capfitogen

×