Transcript Dia 1

Climate change resilient
water management
measures in agriculture in
South-West Finland
Elsi Kauppinen
Centre for Economic Development,
Transport and the Environment
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Adaptation to climate change through
bioeconomy – BILKE-project
 Project managed at ELY Centre for Southwest Finland,
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funded by Ministry of Agriculture and Forestry. Close
cooperation with Environmental Institute of Finland.
The problem: In Southwest Finland the biggest cause of
eutrophication is agriculture. Climate change will cause
increased rainfall especially during winter months,
leading to increasing nutrient flows to aquatic systems.
The project’s goals are to:
 Assess vulnerability of agriculture dominated catchment
areas towards climate change impacts
 Identify and demonstrate key adaptation measures
 Analyse how the measures could generate new potential for
bioeconomy
Adaptation to climate change through
bioeconomy – BILKE-project

Main objectives:
– Renovation of a rural drainage system with
sustainable methods in order to reduce flood risk
and eutrophication, and also to improve biodiversity
– Training for ”drainage system-stewards”
 New professionals who would help locals with
maintenance and sustainable renovation of their
drainage systems
– Develop an operation model for wide scale
implementation of climate resilient water
management measures
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Climate change scenarios
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Model A1Bmean, ICECREAM and VEMALAtools (Finnish Environmental Institute)
– Climate change scenario A1B: an IPCC storyline for
rapid economic growth and fast introduction of new
more efficient technologies, combined with balanced
use of both fossil and non-fossil energy sources
– Mean results from using 19 different models for
impacts on rainfall, water flow in rivers, leaching of
nutrients from agricultural fields, etc.
Three watersheds in Southwest Finland
(Paimionjoki, Mynäjoki and Sirppujoki)
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Climate change scenario results
Rainfall mm
 Last years have been unusually wet,
which causes no change in predicted
rainfall for years 2020-29.
 Later a slight change in predicted
yearly rainfall is possible.
850
800
750
700
650
2020-29
2050-59 2090-99
 Duration of snow cover
becomes significantly shorter.
Maximum depth of
snow
2005-14
60
40
Nykyilmasto
20
2010-39
2040-69
0
20
50
75
100 yli 100
Duration of snow cover
[days per year]
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Climate change scenario results
Outflow in river Mynäjoki 1961-2014
Outflow in river Mynäjoki 2040-69
 Large spring floods will disappear
 Floods of variable scale become common through autumn and winter
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Climate change scenario results
Water available for vegetation in top 10 cm of soil
Soil pore water mm
18
16
14
12
2005-14
2020-29
2050-59
2090-99
10
8
6
4
2
0
3/1/2015
4/1/2015
5/1/2015
6/1/2015
 A new drought season during spring is possible
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Climate change scenario results
Maximum amount of environmental measures (CAP)
Present amount of environmental measures (CAP)
Change [%]
Change in the amount of leached phosphorus from
agricultural fields
30
20
10
0
-10
-20
-30
2020-29
2050-59
2090-99
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Climate resilient water management
solutions
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Improve drainage systems
Renovation of drainage ditches  floodplain
areas within ditches
Addition of organic material (and carbon) to
soils  soil structure improvement and
improved soil moisture retention capacity
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Mättäänoja, Somero Finland. A future demonstration site for
drainage ditch renovation (floodplain areas within ditches).
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 20%
decrease in the
amount of
sediment
transportation
Ditch profile designed for improved flood protection and
eutrophication management. Location: Leppioja, Tyrnävä.
Photo credit: Juha Järvelä, Aalto University
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Climate resilient water management
solutions
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Drainage areas as main unit for planning and
implementing environmental measures
Social aspects:
 Should farmers become custodians of floodplains
and of catchments?
– Bottom up management: local communities design
and implement (locally effective) measures
Improved acceptance of environmental
measures
Higher motivation
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The main research question for the next year:
how to improve the operation models (and
policies)
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Thank you for your attention!
Elsi Kauppinen
[email protected]
www.ymparisto.fi/bilke
Centre for Economic Development,
Transport and the Environment
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