N-surpluses and handling of the Water Framework Directive
in Sweden
Hans Nilsson
Swedish Board of Agriculture
Average N-surplus from nutrient balances in Greppa Näringen,
2000-2004
50
130
89
0
20
40
60
80
100
120
140
Plant production 1200 farms
Milk production1300 farms0,94 a.e./ha
Pig production300 farms0,7 a.e./ha
N-s
urp
lus (
kg
N/h
a)
N-surplus in plant production- Correlation to area
-20
0
20
40
60
80
100
120
0 50 100 150 200 250 300
Area (ha)
N-s
urp
lus
(kg
pe
r h
a)
N-surplus in plant production- Correlation to soil texture (% sand)
0
10
20
30
40
50
60
<30 % sand >30 % sand
N-s
urp
lus
, kg
N p
er
ha
N-surplus on farms milk production
900 farms without manure import/export
y = 89,842x + 45,702
R2 = 0,426
0
50
100
150
200
250
300
350
0 0,5 1 1,5 2 2,5 3
Animal equivalents per ha (a.e/ha)
N-s
urp
lus,
kg
N p
er h
a
N-surplus on farms milk production - slurry vs farmyard manure (FYM)
0
5
10
15
20
25
30
slurry FYM
N-s
urp
lus
, kg
N/t
on
ne
milk
N-surplus on farms with pig production
y = 32,268x + 68,902
R2 = 0,1632
-50
0
50
100
150
200
250
300
0 0,5 1 1,5 2 2,5 3 3,5
Animal equivalents (a.e.)/ha
N-s
urp
lus
(kg
N/h
a)
Calculations at SLU have shown that
• N-leaching from arable land decreased by 7000 tonnes or 12% in the period 1995-2003
• Average N-leaching decreased from 21.8 to 20.0 kg N/ha arable land
• The goal is 7500 tonnes by 2010
• The goal is 93% fulfilled already
Source: Beräkning av förändringar av kväveutlakning från åkermark mellan 1995 och 2003PM from SJV, Magnus Bång, 2005
Reasons for decreased N-leaching
a Decreased arable land areab Increased nitrogen use efficiencyc Use of catch crops and decreased autumn tillage d Increased proportion of manure spread in springe Changes in crop rotation
Decreased N-leaching in different regions
West East North
Investigation by SCB(Statistiska Centralbyrån)
• Nitrogen balance for arable land– N-surplus 2003 = 46 kg N/ha
(decrease of 4% from 2001)• Input 123 kg N/ha• Output 77 kg N/ha
• Nitrogen balance including animal production– Total N-surplus 2003 = 168 ktonnes or 54 kg
N/ha(decrease of 8% from 2001)
Source: Kväve- och fosforbalanser för jordbruksmark och jordbrukssektor 2003, Rapport MI40SM0501 , SCB 2005, Link
The Water Framework Directive (WFD)
• Legislation for protection of all water bodies in Europe– Lakes, Rivers, Coastal Waters, Groundwater (drinking water)– Sweden has over 85,000 lakes >1 ha and over 60,000 rivers.
Lakes >50 ha and rivers >1000 ha are going to characterize water protection areas
• Good water status before 2015, but exceptions can be accepted for Heavily Modified Bodies.
• Based on the state of reference, intercalibrated between the countries in EU
• The water shall have a price and the polluter has to pay? PPP (Polluter Pays Principle).
Timetable
• 2003 Constuction of water administration boards in Sweden. 5 regions
• 2004 The first basis analysis, preliminary goals for the environment
• 2006 Publish and consult on timetable and work programmes for the
production of river management plans
• 2006 Intercalibration
• 2007 Publish and consult on significant water management issues for each
river basin district
• 2008 Publish and consult on drafts of the river basin management plans
• 2009 First water plan to be fulfilled
• 2012 Water plan operational
• 2015 Main environmental objectives to be fulfilled
• 2027 Last chance to meet the objectives after 2x6 year postponements
THE SWEDISH WATERADMINISTRATIONUTREDNINGEN SVENSK VATTENADMINISTRATION
Bothnien Bay
Bothnien Sea
Northern Baltic Sea
Southern Baltic Sea
Kattegatt/Skagerrak”West sea”
THE SWEDISH WATER ADMINISTRATION
5 river basin districts
Questions
• What is good water status?• What does Heavily Modified Bodies
mean in different countries ?• How is PPP going to work?
Good water status
Intercalibration
• All member states have identified water bodies with high and good ecological status
• In 2006 the EU Commission will inter- calibrate the sites, which means the same objectives will apply for the same types of water bodies in all member states
Present and future (WFD) environmental objectives
No or very little deviation from unaffected conditions
Little deviation from unaffected conditions
Moderate deviation from unaffected conditions
Unsatisfactory status
High status
Good status
Moderate status
Bad status
EQR=0
EQR=1
Intercalibration 2006
EQR =Observed value
Reference value
Quality factors for classification of ecological status
Biology• Aquatic flora
(macrophytes)• Bottom fauna• Fish
Phys/chem• Water temp
• Oxygenation
• Salinity
• pH, alk, ANC
• Nitrogen, Phosphorus
• Toxic substances
Hydromorp• Hydrological
condition
• Continuity
• Morphological condition
One out, all out principle
Use of quality factors for classifying ecological status
High
Biology
Phys-chem
Hydro-morph
Moderate
Biology
Unsatis- factory
Bad
Phys-chem
Phys-chem
Phys-chem
Hydro-morph
Hydro-morph
Hydro-morph
Biology Biology
Hydro-morph
Good
Biology
Phys-chem
Not available in WFD
Identified sensitive areas in EU:s Nitrate Directive
Sensitive areas in Swedenaccording to the Nitrate Directive
Problem in theBaltic sea?Phosphorus
+Nitrogen
Problem on theWest coast?
Nitrogen +
Phosphorus
Exceptions according toHeavy Modified Water Bodies
Proportion of the flowing water that is characterized as Heavy Modified Water Bodies
Unpublished material
• Belgian, average: 41%• Denmark, ? • Finland: 25% (km)• France: 26%• Ireland: 39%• Netherlands, average: 57%• Norway: 14%• Great Britain, average: 36%• Sweden: 8%• Germany: 37%
Source: Anna Mcarthur, Federation of Swedish Farmers, unpublished
approx.
Criteria in Sweden
• Lakes with more than 3 m regulation depth
• Lakes that were significantly lowered 1960 or later
• Large dams for electricity production
• Largest harbours
PPP in WFD
Who has to pay and how is the price going to be established?
Some thoughts from LRF* in Sweden on how to divide PPP between the producer and the consumer
-
Residual leakage
1. Catch crop
2. Irrigation
3. Optimized fertilization
4. Minimized tillage
0
10
20
30
40
50
Kg
N /
ha
Example : Potatoes
* Federation of Swedish Farmers
Some thoughts from LRF* in Sweden how to divide PPP between
the producer and the consumer
0
10
20
30
40
50
Kg
N /
ha
This leakage depends on HOW the farmer grows his potatoes
This leakage is due to THAT potatoes is grown and is only affected by consumption.
Example : Potatoes
* Federation of Swedish Farmers
Some thoughts from LRF* in Sweden how to divide PPP between
the producer and the consumer
0
10
20
30
40
50
Kg
N /
ha
Who is going to pay for the HOW-part?
Who is going to pay for the THAT-part?
Example : Potatoes
* Federation of Swedish Farmers
Thank you for your attention