Mapping of abiotic stresses in
rice production systems
Characterization of target environments

Sander Zwart
GIS / remote ...
Presentation outline
1. Introduction to spatial analysis at AfricaRice +
link to STRASA
2. Advances and goals for abiotics...
Spatial analysis at AfricaRice
AfricaRice GIS unit:
•
•
•

Started in 2010
Basically started from scratch
Currently 1 rese...
Spatial analysis at AfricaRice
Research priorities at AfricaRice GIS unit:
1. Mapping rice and rice ecologies
(upland/lowl...
Spatial analysis at AfricaRice
Objective #6: Scaling up Seed Multiplication,
Dissemination, Varietal Tracking & Impact
ass...
Spatial analysis at AfricaRice
Objective #6: Scaling up Seed Multiplication,
Dissemination, Varietal Tracking & Impact
ass...
Spatial analysis at AfricaRice
Major on-going activities at AfricaRice
• Mapping rice using radar satellite images
• Mappi...
Spatial analysis at AfricaRice
Mapping rice using so-called radar satellite
images
Cases studies:
• Irrigated rice in Sene...
Rice classification:
The rice classified
areas are shown in
pink colour; they are
draped over the
previous RGB colour
comp...
Spatial analysis at AfricaRice
Mapping rice inland valley systems using digital
elevation models:
• Benin, Togo, Sierra Le...
Spatial analysis at AfricaRice

STRASA Phase III - Africa planning workshop
February 28 - March 1, 2014 - Cotonou, Benin
Spatial analysis – Mapping inland valleys

Remote Sensing – Beyond Images
14-15 December 2013, Mexico City
Spatial analysis – Mapping inland valleys

Remote Sensing – Beyond Images
14-15 December 2013, Mexico City
Spatial analysis – Mapping inland valleys

Remote Sensing – Beyond Images
14-15 December 2013, Mexico City
Spatial analysis at AfricaRice

STRASA Phase III - Africa planning workshop
February 28 - March 1, 2014 - Cotonou, Benin
Presentation outline
1. Introduction to spatial analysis at AfricaRice +
link to STRASA
2. Advances and goals for abiotics...
Abiotic stress mapping
Drought
Cold / heat stresses
Submergence
Salinity
Iron toxicity
Options for mapping: survey results...
Abiotic stress mapping

STRASA Phase III - Africa planning workshop
February 28 - March 1, 2014 - Cotonou, Benin
Abiotic stress mapping

STRASA Phase III - Africa planning workshop
February 28 - March 1, 2014 - Cotonou, Benin
Abiotic stress mapping

STRASA Phase III - Africa planning workshop
February 28 - March 1, 2014 - Cotonou, Benin
Abiotic stress mapping

STRASA Phase III - Africa planning workshop
February 28 - March 1, 2014 - Cotonou, Benin
Abiotic stress mapping

STRASA Phase III - Africa planning workshop
February 28 - March 1, 2014 - Cotonou, Benin
Abiotic stress mapping

STRASA Phase III - Africa planning workshop
February 28 - March 1, 2014 - Cotonou, Benin
Abiotic stress mapping
Drought
Cold / heat stresses
Submergence
Salinity
Iron toxicity

Requires meteorological data from
...
Abiotic stress mapping
Preparation of inputs: meteorological data bases
- Collecting daily measurements of 300 stations
an...
Abiotic stress mapping
Preparation of inputs: meteorological data bases
- Collecting daily measurements of 300 stations
an...
Abiotic stress mapping
Preparation of inputs: meteorological data bases
- Collecting daily measurements of 300 stations
an...
Abiotic stress mapping
Preparation of inputs: rice growing seasons
Where and when is rice growing?
Crop phenology (windows...
Abiotic stress mapping
Peak of planting date
(Julian day)
Preparation of inputs: rice growing seasons

Where and when is r...
Abiotic stress mapping
Cold / heat stresses
Data sources:
• spatial data base of minimum and maximum
temperature (NASA/Pow...
Heat stress
Thresholds, duration and critical rice growth stage
Daytime heat stress
Nighttime heat stress

Vegetative

Tma...
Abiotic stress mapping
Cold / heat stresses

STRASA Phase III - Africa planning workshop
February 28 - March 1, 2014 - Cot...
Abiotic stress mapping
Cold / heat stresses
• 35oC threshold of air temperature is valid for
humid climates
• In dry, Sahe...
Abiotic stress mapping
Submergence
• Sub1 gene allows plants to be subermegent up
to two weeks without yields loss
• Type ...
Abiotic stress mapping
Submergence
Tools, simple hydrological model that can assess
submergence events based on:
• Digital...
Abiotic stress mapping
Submergence

precipitation

Lowland areas

IHAS
hydrological
model

Digital
Elevation
Model

Floods...
Abiotic stress mapping
Salinity – no strategy developed yet
Drought – assessment of exisiting drought
indicators and use s...
Way forward
• Many efforts have been made on preparation of
input data, not yet on mapping the stresses
• Limited human an...
Spatial analysis at AfricaRice
Objective #6: Scaling up Seed Multiplication,
Dissemination, Varietal Tracking & Impact
ass...
Partnerships and way forward
• Webmapping is an option to disseminate maps
on occurence and frequency of stresses
• Pro-ac...
Thank you! Merci!
Center of Excellence for Rice Research
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Mapping of abiotic stresses in rice production system - creating target environments for rice breeders

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Presentation given at the planning meeting of STRASA phase II project

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Mapping of abiotic stresses in rice production system - creating target environments for rice breeders

  1. 1. Mapping of abiotic stresses in rice production systems Characterization of target environments Sander Zwart GIS / remote sensing / water resources STRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin
  2. 2. Presentation outline 1. Introduction to spatial analysis at AfricaRice + link to STRASA 2. Advances and goals for abiotics stress mapping 3. Partnerships and way forward STRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin
  3. 3. Spatial analysis at AfricaRice AfricaRice GIS unit: • • • Started in 2010 Basically started from scratch Currently 1 researcher, 1 PDF, 3 research assistants STRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin
  4. 4. Spatial analysis at AfricaRice Research priorities at AfricaRice GIS unit: 1. Mapping rice and rice ecologies (upland/lowland/mangrove/deep water) 2. Mapping the potential for rice development 3. Mapping biotic and abiotic stresses in rice production systems (current and under climate change) STRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin
  5. 5. Spatial analysis at AfricaRice Objective #6: Scaling up Seed Multiplication, Dissemination, Varietal Tracking & Impact assessment AC6.2 Map rice producing areas affected by single and multiple abiotic stresses AC6.2.1 identification of new extrapolation domains for wet and dry seasons in SSA for expansion of rice areas using the newly developed single and multiple stress tolerant varieties (STRVs) STRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin
  6. 6. Spatial analysis at AfricaRice Objective #6: Scaling up Seed Multiplication, Dissemination, Varietal Tracking & Impact assessment AC6.2.2 Identify areas affected by multiple stresses (flash flood+ stagnant flood; flash flood + drought; flash flood + salinity) using remote sensing, GIS and ground truthing and shared with agriculture departments, marketing and other agencies involved in seed dissemination STRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin
  7. 7. Spatial analysis at AfricaRice Major on-going activities at AfricaRice • Mapping rice using radar satellite images • Mapping inland valley / lowland systems using Digitial Elevation Models • Mappping potential for development of rice systems in inland valley systems • Mapping abiotic stresses in rice production systems STRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin
  8. 8. Spatial analysis at AfricaRice Mapping rice using so-called radar satellite images Cases studies: • Irrigated rice in Senegal • Rainfed rice in Benin Next years expanding to other parts of Africa. STRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin
  9. 9. Rice classification: The rice classified areas are shown in pink colour; they are draped over the previous RGB colour composite. Location of the validation points: Dagana Green pentagons represent land cover other than rice. Yellow dots represent rice crops.
  10. 10. Spatial analysis at AfricaRice Mapping rice inland valley systems using digital elevation models: • Benin, Togo, Sierra Leone, Liberia, Nigeria, Mali, Burkina Faso • West-Africa validated country maps and statistics by 2018 STRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin
  11. 11. Spatial analysis at AfricaRice STRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin
  12. 12. Spatial analysis – Mapping inland valleys Remote Sensing – Beyond Images 14-15 December 2013, Mexico City
  13. 13. Spatial analysis – Mapping inland valleys Remote Sensing – Beyond Images 14-15 December 2013, Mexico City
  14. 14. Spatial analysis – Mapping inland valleys Remote Sensing – Beyond Images 14-15 December 2013, Mexico City
  15. 15. Spatial analysis at AfricaRice STRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin
  16. 16. Presentation outline 1. Introduction to spatial analysis at AfricaRice + link to STRASA 2. Advances and goals for abiotics stress mapping 3. Partnerships and way forward STRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin
  17. 17. Abiotic stress mapping Drought Cold / heat stresses Submergence Salinity Iron toxicity Options for mapping: survey results or spatial analysis results using remote sensing and GIS? STRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin
  18. 18. Abiotic stress mapping STRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin
  19. 19. Abiotic stress mapping STRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin
  20. 20. Abiotic stress mapping STRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin
  21. 21. Abiotic stress mapping STRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin
  22. 22. Abiotic stress mapping STRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin
  23. 23. Abiotic stress mapping STRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin
  24. 24. Abiotic stress mapping Drought Cold / heat stresses Submergence Salinity Iron toxicity Requires meteorological data from stations and remote sensing: • Temperature (minimum / maximum) • Precipitation • Evapotranspiration STRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin
  25. 25. Abiotic stress mapping Preparation of inputs: meteorological data bases - Collecting daily measurements of 300 stations and creating data base (finished) - Hand-over of adjusted NASA/POWER data base from IRRI (finished) STRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin
  26. 26. Abiotic stress mapping Preparation of inputs: meteorological data bases - Collecting daily measurements of 300 stations and creating data base (finished) - Hand-over of adjusted NASA/POWER data base from IRRI (finished) - Downloading / importing / validating of remote sensing products of precipitation and evapotranpiration (on-going) STRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin
  27. 27. Abiotic stress mapping Preparation of inputs: meteorological data bases - Collecting daily measurements of 300 stations and creating data base (finished) - Hand-over of adjusted NASA/POWER data base from IRRI (finished) - Downloading / importing / validating of remote sensing products of precipitation and evapotranpiration (on-going) STRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin
  28. 28. Abiotic stress mapping Preparation of inputs: rice growing seasons Where and when is rice growing? Crop phenology (windows for planting / vegetative stage / harvest) STRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin
  29. 29. Abiotic stress mapping Peak of planting date (Julian day) Preparation of inputs: rice growing seasons Where and when is rice growing? Crop phenology (planting / vegetative / harvest) STRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin
  30. 30. Abiotic stress mapping Cold / heat stresses Data sources: • spatial data base of minimum and maximum temperature (NASA/Power) • General growing seasons of rice STRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin
  31. 31. Heat stress Thresholds, duration and critical rice growth stage Daytime heat stress Nighttime heat stress Vegetative Tmax > 35 °C for 10 days during this period Tmin > 25 °C for 15 days during this period Reproductive Ripening
  32. 32. Abiotic stress mapping Cold / heat stresses STRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin
  33. 33. Abiotic stress mapping Cold / heat stresses • 35oC threshold of air temperature is valid for humid climates • In dry, Sahelian climates not valid due transpirational cooling of the plants • New model is being developed incorporating relative humidity to derive spikelet temperature STRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin
  34. 34. Abiotic stress mapping Submergence • Sub1 gene allows plants to be subermegent up to two weeks without yields loss • Type of floods: stagnant floods or flash floods of several days up to two weeks • Requires characterization of flood events in lowland ecology STRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin
  35. 35. Abiotic stress mapping Submergence Tools, simple hydrological model that can assess submergence events based on: • Digital elevation model • Lowland area • Precipitation from remote sensing STRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin
  36. 36. Abiotic stress mapping Submergence precipitation Lowland areas IHAS hydrological model Digital Elevation Model Floods characterized: • Timing of event • Depth • Frequency STRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin
  37. 37. Abiotic stress mapping Salinity – no strategy developed yet Drought – assessment of exisiting drought indicators and use similar approach as temperature stress mapping (growing season, spatial data, assess frequency of drought over last 30 years) STRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin
  38. 38. Way forward • Many efforts have been made on preparation of input data, not yet on mapping the stresses • Limited human and financial resources • (already) strong collaboration with IRRI’s GIS lab will be intensified to develop, test and implement common approaches for mapping abiotic stresses STRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin
  39. 39. Spatial analysis at AfricaRice Objective #6: Scaling up Seed Multiplication, Dissemination, Varietal Tracking & Impact assessment AC6.2.2 Identify areas affected by multiple stresses (flash flood+ stagnant flood; flash flood + drought; flash flood + salinity) using remote sensing, GIS and ground truthing and shared with agriculture departments, marketing and other agencies involved in seed dissemination STRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin
  40. 40. Partnerships and way forward • Webmapping is an option to disseminate maps on occurence and frequency of stresses • Pro-active approach towards extension services, agricultural departments, farmer organizations, seed producers and sellers to gain interest in the tools and maps that will be developed STRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin
  41. 41. Thank you! Merci! Center of Excellence for Rice Research

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