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![Page 1: How to value ecosystem goods and services in agriculture at increasing land use pressure ? Katarina Hedlund Lund university, Sweden.](https://reader038.fdocuments.us/reader038/viewer/2022110209/56649e055503460f94af15ee/html5/thumbnails/1.jpg)
How to value ecosystem goods and services in agriculture at increasing land use pressure ?
Katarina Hedlund Lund university, Sweden
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Land use projections
• Production of goods is increasing– Food, biofuels, timber, water use
• Natural habitats are declining
• Mitigating climate change– Increased pressure on land for production
of biomass
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EU biofuel strategy 2006 1% (produced in EU)
2010 6% 10% of total area
2020 10% 43% of total area
Agricultural land use
Nowicki 2006
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Current land use in Europe
Land use in EU-27
arable land
permanent pastures
permanent crops
forests
other areas
Eurostat 2008
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Biofuel production
Agriculture Natural grasslands
Land use demands
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Extensive agriculture, Dehesas in Spain
How do we conserve ecosystem services and biodiversity ?
Agri-environmental schemes:
Extensification
Protected areas
Heterogeneity in landscapes
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EU common agricultural policy CAP
• Implemented nationally as rural development plans with additional national funding
• CAP (12 000 million €/yr), 47% of EU budget• Farming is 5% of European economy• CAP subsidies
– Area based income support– Rural development actions– Agri-environmental schemes
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Ecosystem services threatened by
intensive agriculture
• Natural enemies• Pollination• Resistance to pests &
invasive species• Nutrient cycling• Water retention• Carbon retention
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Intensification and above ground services
• Increased heterogeneity may give higher diversity
• Effect is scale dependent
• Not true for all species
Tscharnkte et al. 2007
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Soil ecosystem services
• Nutrient cycling
N, P retention and availability to plants
• Water retention
Aggregate structure, organic matter• Carbon retention
Fuels microbial activity, mitigates climate change
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Soil ecosystem services-the ”workers”
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Soil services
Reduced under intensive management
0
5
10
15
20
25
30
bacterial biomass AM-fungi fungi
grassland
field
Hedlund 2002
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SOILSERVICE
Conflicting demands of land use:
Soil biodiversity and the sustainable delivery of
ecosystem goods and services in Europe
http://www.kem.ekol.lu.se/soilservice/index.html
• value soil ecosystem services.• predict sustainability of ecosystem services, by field and modelling studies.• Build scenarios to identify economical and social drivers of land use
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Biofuel production
Agriculture Natural grasslands
Land use demands Soil carbonNutrientsNatural enemiesPollination
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Valuation of ecological services
Market values of ecological servicesprevention of pests - natural enemiespollinationwater retentionnutrient retention
Non market valuesrecreationlandscapes
Markanday et al 2008
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Economic valuationa dynamic approach
Ecosystem services in agriculture
- Dynamic network of interacting organisms
- Responding to changes in land use
- Depending on spatial and temporal scales
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SOILSERVICE
Economic model
simulated landscapes
predicts regional land
use (20 yrs)
Ecological model
farmers scale
predicts output of
ecosystem services
Values of servicesfor farmer and society
Predictions on sustainabilityFeed back to policymakers
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AgriPoliS Agent-based model of regional structural change
over time and space
Actions
Interactions
Farms
Factor endowment
Agricultural Policy Simulator (Happe 2004, Brady et al 2007)
Institute of Agricultural Development in Central and Eastern Europe (IAMO),
Halle, Germany
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Drivers in relation to AgriPoliS
Exogenous• Prices of
inputs/outputs• Wage and interest
rates• Agricultural policy• Climate• Technology
Endogenous• Land market• Regional markets• Input & output levels• Land use• Landscape impacts• ES production
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Output from AgriPoliS
• Farm structure– Average farm size– Number of farms– Distribution of farm
type• Land use
– Composition of crops– Distribution of field
size– Landscape mosaic
• Econ. Performance– Land rents by soil
type– Farm income – Farm profit – Investment activity– Returns to labour
• Livestock– Numbers of livestock– Animal density
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SOILSERVICE field sites
Regions for valuation ofservices
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SOILSERVICE partners•Lund University, Sweden, Dr Katarina Hedlund•Swedish Institute for Food and Agricultural Economics, Sweden
Dr. Mark Brady, •University of Copenhagen, Denmark Prof. Søren Christensen, •University of Helsinki, Finland Prof. Heikki Setälä, •Netherlands Institute of Ecology, NL, Prof. Wim H. Van der Putten, •Wageningen University, NL, Prof. Peter C. de Ruiter, •Justus-Liebig-University of Giessen, Germany, Prof. Volkmar Wolters, •Biology Centre of the Academy of Sciences, Czech Republic Dr. Jan Frouz, •Aristotle University of Thessaloniki, Greece, Dr. Stefanos Sgardelis•Lancaster University, United Kingdom, Prof. Richard D. Bardgett•University of Reading, United Kingdom, Dr. Simon Mortimer
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Landscape impacts – Land use & field size
(b) Change in mean Field Size , Västerbotten
-30%
-20%
-10%
0%
10%
20%
30%
40%
50%
60%
IntensiveGrass
ExtensiveGrass
Arable Crops All Arable Semi-NatGrassland
AGENDA REFORM BOND
(b) Field type as proportion of landscape , Västerbotten
-100%
-50%
0%
50%
100%
150%
200%
250%
Intensive Grass Extensive Grass Arable Crops Semi-NatGrassland
AGENDA REFORM BOND
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Land use data (GIS based)Southern Sweden
Cereal production Grasslands