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

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Presentation given at the planning meeting of STRASA phase II project

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  • 1.Mapping of abiotic stresses in rice production systems Characterization of target environmentsSander Zwart GIS / remote sensing / water resourcesSTRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin

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 forwardSTRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin 3. Spatial analysis at AfricaRice AfricaRice GIS unit: Started in 2010 Basically started from scratch Currently 1 researcher, 1 PDF, 3 research assistantsSTRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin 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. 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. 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 disseminationSTRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin 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. 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. 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:DaganaGreen pentagons represent land cover other than rice. Yellow dots represent rice crops. 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 2018STRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin 11. Spatial analysis at AfricaRiceSTRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin 12. Spatial analysis Mapping inland valleysRemote Sensing Beyond Images 14-15 December 2013, Mexico City 13. Spatial analysis Mapping inland valleysRemote Sensing Beyond Images 14-15 December 2013, Mexico City 14. Spatial analysis Mapping inland valleysRemote Sensing Beyond Images 14-15 December 2013, Mexico City 15. Spatial analysis at AfricaRiceSTRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin 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 forwardSTRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin 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. Abiotic stress mappingSTRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin 19. Abiotic stress mappingSTRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin 20. Abiotic stress mappingSTRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin 21. Abiotic stress mappingSTRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin 22. Abiotic stress mappingSTRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin 23. Abiotic stress mappingSTRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin 24. Abiotic stress mapping Drought Cold / heat stresses Submergence Salinity Iron toxicityRequires meteorological data from stations and remote sensing: Temperature (minimum / maximum) Precipitation EvapotranspirationSTRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin 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. 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. 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. 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. Abiotic stress mapping Peak of planting date (Julian day) Preparation of inputs: rice growing seasonsWhere and when is rice growing? Crop phenology (planting / vegetative / harvest)STRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin 30. Abiotic stress mapping Cold / heat stresses Data sources: spatial data base of minimum and maximum temperature (NASA/Power) General growing seasons of riceSTRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin 31. Heat stress Thresholds, duration and critical rice growth stage Daytime heat stress Nighttime heat stressVegetativeTmax > 35 C for 10 days during this period Tmin > 25 C for 15 days during this periodReproductiveRipening 32. Abiotic stress mapping Cold / heat stressesSTRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin 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 temperatureSTRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin 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 ecologySTRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin 35. Abiotic stress mapping Submergence Tools, simple hydrological model that can assess submergence events based on: Digital elevation model Lowland area Precipitation from remote sensingSTRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin 36. Abiotic stress mapping SubmergenceprecipitationLowland areasIHAS hydrological modelDigital Elevation ModelFloods characterized: Timing of event Depth FrequencySTRASA Phase III - Africa planning workshop February 28 - March 1, 2014 - Cotonou, Benin 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. 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 IRRIs 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. Spatial analysis at AfricaRice Objective #6: Scaling up Seed Multiplication, Dissemination, Varietal Tracking & Impact assessment AC6.2.2 Identify areas affected by multiple stress