agrev 3 · land use changes 1996-2016: data mining through markov chains mapping of nitrogen...
TRANSCRIPT
Observe
Test
Improve
Marc BENOIT, Arnaud GOBILLOT, Julia AUZERAL, Caroline BERNARD INRA SAD ASTER MIRECOURT FRANCE
COST ACTION Payments for Ecosystem Services (Forests for Water)
01/03/2017 Agrivair
AGREV 3: (AGRiculture-Environnment Vittel)
When and where?
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60 km² dont 58% de SAU
(3 500 ha)
54 km² dont 50% de SAU
(2 700 ha)
Since 1854: Farming and natural water production
114 km² 54% de SAU (6 200ha)
TOTAL
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This watershed = f(Nestlé Waters + 30 Farmers + 11 000 ha)
11 400 ha (28 000 acres)
60% of agricultural land
30 farms involved
260 000 Nitrogen unit managed
Meadow
Temporary meadow
Spring culture
Autumn culture
What was the past of Research-Action ?
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Role of research team
Research-Action *:
• Knowledge is not produced strictly on line with a field of disciplin stream but in the relationship with action and actors to help them to develop a new « agrarian system.
• Research teams are in a « by pass » position between farmers and SGEMVittel. Research have to take into account
– The multiple faces of this problem : we need interdiciplinarity
– Diversity of actors : a big firm, farmers and their diversity, the profesionnal organization of agriculture ( Chamber of agricculture, cooperative, …)
– The diverse … and even contrary interests of these actors
– Sensibility of farmers to the pollution thema
– Diverse technical, economical, sociological, and anthropological factors influencing the farmer practices … ans so the nitrate lecaching.
– … so we are working with a complex situation.
* : due to Hatchuel, Moisdon, Weill reserach work since 1989 ( Centre de Gestion Scientifique, Ecole des Mines Paris – CNRS.
1988: 8 research teams (INRA, CNRS, CEMAGREF, Lorraine University) are involved
to find problems …and propose solutions .
Disciplins : economy (+1 PhD), agronomy (+1PhD), management (+ 2 PhD), soil
science, biology, sociology, animal science, geology, hydrology ( 1 PhD)
AGREV 1: 7 years ; money: SGEM Vittel + public water agency Rhin-Meuse + Inra .
In 1988, an innovative research programm, built as an « in field lab »
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The steps of AGREV 1 and AGREV 2 programs:
1) Diagnosis of risks (practices, farming systems)
2) Proposals of changes to do
3) Analysis of real changes ( water, farms, agrarian system)
4) Evaluation of changes effects … and consequences
5) Giving tools ( GIS, evaluation risk, …) to pilot the new
agrarian system
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1988-1993
1992-1996
1997-1998
1998-2001
2002-2004
The five types of economical helps • By SGEMV via Agrivair
– LAND PROPERTY CHANGES :
– Purchase of farmlands at very interesting prices (20000 F/ ha to landowner, 20000F/ha to farmer ) ,
– Free land use during 18 to 30 years for signatory farmers of the contract
– INCOMES:
– Contract of private law due to private status of water.
– 1500F/an/ha during 7 years
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• INVESTMENT for each farm : - Buildings for drying forage (grassland and alfa-alfa) - Platform of farmyard manure composting
• TRAINING : (i) Learning of new practices by farmers, (ii) Technical support( 2 independant advisory managers were paid), (iii) General advisory: Agrivair • OPERATING Functionning : - Management of composted farmyard manure - Helps for mechanical weed destruction
TO CONCLUDE FOR THE PAST:
Monitor nitrogen flows at field / water landscape scale +
comprehensive research on diversity of agricultural practices +
temporal and spatial scales on the watershed +
research – action choice =
A book of proposal (first version in August 1991; second version in 2016)
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Best management practices set up:
1. Giving up maize cultivation
2. Giving up agrochemicals (no pesticides)
3. Maintain producing pasture and avoid bare soil
4. Promoting suitable application date, form and level of fertilization
5. Reducing stocking rate to a maximum of one livestock unit per hectare
6. Promoting technical solutions to optimize nitrogen use within the territory
What is done in AGREV 3?
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AGREV 3: A « research action » dealing with one main question: How to redesigned this farming system?
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* Hatchuel, Moisdon, 2002
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Allowing a viable farming system for farmers
And
A long term mineral water protection
Providing technical and economical
support
Imaging, implementing and
evaluating redesigned agricultural practices
Farmers challenging us every day!
Since 1992
Since 1986
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Methodological challenges at the watershed scale: RISK ASSESMENT for farmers and Nestlé Waters
Hazard identification
Risk assessment
Risk management
- Bibliography - Observation - Measured
Degree of risk over: - Time - Space - Practice
New “for water” management practices
Fertilization: Cropping management Date Type Rate
AGREV 3: Monitoring of 3 scales dataset
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2000
20 springs monitored
Field plot
6000 ha and 19 years of land use
Farm:
- 75 analyses of manure and slurry
Nitrogen fluxes: - Animals - Milk production - Feeding - Etc.
Watershed
Observe:
Result (1): Big Data for a Small Land Some indicators to manage the risk
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Land use changes 1996-2016: data mining through Markov Chains
Mapping of nitrogen pressure by multicriteria analysis ESCo Inra, Scoones et Toulmin 1998; Oenema et al. 2003; De Vries et al. 2011, Benoît et al., 1992, Manneville et al., 2010. Hayo et al., 2002, Aarts et al. 2015
Estimate risk Landscape spatial organization and its temporal evolution PhD El Ghali LAZRAK 2012, Le Ber et al., 2006 ; Castellazzi et al., 2008, Ying Xiao 2015
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Result (2) : Evaluation Indicator of Nitrogen Risk Assesment (INRA)
INRA Watersheds validation (1989-2002)
984 ha of crops dominant
89 ha Grassland dominant
59 ha Forest dominant
Result(3): Big Data useful for farmer
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Yield on cut grassland (t/ha)
Helping farmers improving their system
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Result(4): Big Data useful for Agrivair to manage the risk
Increasing global knowledge
Improving best management practice (book of proposals : V2)
Helping Nestlé Waters taking agricultural decision on the watershed
RE-defining territorial sensibility and agricultural practice impacting water quality
Involving farmers on field’s experiment to increase their knowledge
To conclude
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1. Understand the entire system and farmers perspective, through a common research question,
2. Develop appropriate agricultural practices through a common research protocol, 3. Actively involve the farmers in the entire participatory research process, focusing on: - data acquisition and mining processes - facilitating and providing new idea and/or unknown technology to the
farmers, promoting innovative methodologies and flexibility, 4. Think about the type of results discussion,
5. Build a continuous re-design of questions on the future of this water landscape.
Observe Test Improve
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Is our AGREV framework a general one?
Agronomy
Agreement between farmers and NW
Personnal motivation
International market Etc.
CAP
Thanks for your attention! AGREV 3
INRA ASTER MIRECOURT [email protected] [email protected]
[email protected] [email protected]
+33 6 84 47 40 57
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