Geovation Water Challenge: Abacus Agriculture
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Transcript of Geovation Water Challenge: Abacus Agriculture
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Stephen [email protected]
Exploring the Water Challenge
Water & Catchment management using Agroforestry
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Not good in the countryside
Not good in towns
or the countryside
Too much or too little
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The answer ?
Water stress & floodrather than
being reactive..... .....Avoida
nce
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But .......
• Climate change
• Pressure on land use
• Food production
• Regulation WFD,CAP etc
• Global markets
• Finance
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• Land use where trees are combined with crops and/or livestock on the same unit of land and where there is significant ecological or economic interaction between the tree and the agricultural components
AGROFORESTRY
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Agroforestry & livestock production
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Grain production
Agroforestry & crop production
Biomass
Fruit &
Nuts
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lowland agriculture
Upland agriculture
Riparian systems
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Catchment scale
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Pontbrenshows
it works
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Flood plain Agroforestry at Gardon d’Alès river, (Southern France)diverting flood water away from the river and trapping detritus within the tree rows
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Increase soil porosity & soil organic matter
Slowing rainfall, overland flow & Improving water infiltration
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Roots stabilise soil & trees act as water pumps
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Soil, Nutrient & Water management
Source : Research by INRA Restinclières, France
AgricultureAgroforestry Forestry
Average nitrate leaching
Kg / ha / yrUp to 50% less N lost under
Agroforestry than arable
Trees capture N not used by crops
Reduced Nitrogen leaching & improved water quality
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Improved sun & water utilisationGreater overall productivity
LER’s
1.1 to 1.4Tree and crop yields for
42 tree-crop combinations
http://www.cranfield.ac.uk/sas/naturalresources/research/projects/safe.jsp
Balancing productivity with environment management
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• Improved soil & water quality protection• Wind speeds reduced• Reduced evaporation and water loss from crops• Microclimate modified• Carbon capture (1.5 – 4.0 t carbon/ha/yr)
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Is agroforestry scalable to mainstream agriculture?
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UK – 4.7 million ha arable land Henan Province 3.2 million ha agroforestry
Henan
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52ha of Agroforestry at my own farm in Cambridgeshire
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Policy
• Agroforestry eligible under new CAP– Greening measures– Ecological Focus Area (EFA) option
• Pillar II schemes– ERDP or similar options
• Article 23 Pillar II 80% funding (5yr plant & Maintenance)
• Defra has not implemented measures in England
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• EURAF www.agroforestry.eu/• AGFORWARD www.agforward.eu/• AGROFE www.agrofe.eu
Knowledge transfer & research is key
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Farmers could easily adopt
agroforestry on 10-20% of their
land
Trees grow in most places
Agroforestry is one of the few options with the potential to help reduce greenhouse gas
emissions, help protect natural resources, reduce flood
impact - whilst at the same time produce more food and
biomass
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On the way home
Look up.... Look down …
Consider the extra dimensions of Agroforestry
Stephen [email protected]