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Quantitative information on agriculture and water use Maurits Voogt Chief Competence Center.

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Presentation on theme: "Quantitative information on agriculture and water use Maurits Voogt Chief Competence Center."— Presentation transcript:

1 Quantitative information on agriculture and water use Maurits Voogt Chief Competence Center

2 Content Introduction Technology Regional scale information Field scale data Applications


4 Introduction eLEAF Since 2000 Wageningen based Global experience Agricultural water management Crop monitoring PiMapping®

5 Experience on all continents

6 What is PiMapping® ? Pixel Intelligence Mapping PiMapping® technology is a toolbox of algorithms: Based on satellite imagery and meteo data Resulting in quantative data in mm, kg, °C, etc Information on Water, Vegetation & Climate

7 Detailed quantitative data such as Biomass Production [kg/ha]

8 eLEAF’s data components Data Components WATER Actual Evapotranspiration (E, T, interception), precipitation, top soil moisture, water stress, storage change reservoirs, storage change aquifers, water productivity, water accounting, irrigation performance VEGETATION Actual biomass production, Land cover, Fractional vegetation cover, Leaf Area Index LAI, fPAR, crop coefficient, crop yield, CO2 flux, sowing date, harvest date, physical land degradation, anthropogenic land degradation CLIMATESurface temperature, air temperature, air humidity, wind speed, cloud cover, solar radiation, sensible heat flux (H), latent heat flux (LE)


10 Energy balance SEBAL: Surface Energy Balance Algorithm for Land Successor: ETLook


12 SEBAL albedo, temperature, cloud cover Actual water use Biomass production and yield Weather station data Vegetation index


14 GSCP Yemen Groundwater and Soil Conservation Project Objective: quantify ground water abstraction

15 Actual water use How much water is used in 2006?

16 Actual water use

17 Overconsumption Yemen Average: 139 mm/year Locally up to 1000 mm/year



20 Weekly updates: Growth Moisture Minerals Returns Available in: Spain, Canada, Russia, Ukraine, South Africa, Netherlands, Belgium

21 In field variability 25 March25 May7 July 23 July12 Aug 4 Sept8 Sept

22 Just NDVI...? Smooth NDVI curve Biomass production varies from week to week [kg/ha/wk] Actual transpiration [mm/wk] Transpiration deficit [mm/wk]

23 Satellite imagery eLEAF requires satellite imagery on: High resolution Large areas Daily updates


25 Applications eLEAF’s data components can be used: For monitoring To advice In automated applications

26 Monitor: water productivity 2004-5 2005-6 Spatial distribution of good and bad practices. Learn from each other and improve to the same level.

27 Advice: haulm killing Van Es Rosetta: Haulm killing is planned on September 5 Heterogeneous crops on September 4 Dosing of chemicals should vary as well

28 Applications: Irrigation planner PiMapping® technology measures and forecasts soil moisture Irrigation planner indicates when irrigation is required

29 Value Adding Partners eLEAF is building a global network of Value Adding Partners What can you do with quantative data?

30 Thank you for your attention Chief Competence Center

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