VESIJÄRVI A LUCKY LAKE

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1 VESIJÄRVI A LUCKY LAKE HEIKKI MÄKINEN PROGRAMME DIRECTOR LAKE VESIJÄRVI FOUNDATION Mainostoimistona Vesijärven asialla:

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3 SHORTCOMPARISION Area Brazil km² Finland km² of which water Brazil 7367 km² Finland km² Largest lake Sobradinho 4200 km² Saimaa 4400 km²

4 LAKE VESIJÄRVI The 44th largest lake in Finland Surface area of 109 km2 Average depth of 6.0 metres Maximum depth of 42 metres Catchment area of 515 km² 181 km of shoreline: 45% forestry 33% seasonal dwellings 12.5% other dwellings 9.5% agriculture

5 ANNUAL PHOSPHOROUS BALANCE KG/Y Ph input Ph output Agriculture 5250 Fallout 2230 To Lake Päijänne1230 Natural washout 2100 Stays at Lake Dispersed settlement 3150 Point source pollution 40 Forestry 260 Fishing 1100 Stormwaters 600 Mainostoimistona Vesijärven asialla:

6 SOME REMARKS Lake Vesijärvi is globally one of the most successfull examples of lake restoration Local community is target orientated, willing to get results and willing to participate Holistic approach has been implemented in water management in Lahti -> combination of measures Scales are understandable and goals can be reached Effects of water management actions are presented to numerous expert groups and decision maker delegations every year Vesijärvi puhtaaksi Facebookissa

7 100 YEARS OF WATER POLLUTION Mainostoimistona Vesijärven asialla:

8 1920`s

9 1960`s -1970`s

10 Lahti harbour 1982

11 Enonsaari 1989 Mukkula 1988 Paimelanlahti 1992

12 CYANOBACTERIAL BLOOMS IN A CITY HARBOUR 2006 Mainostoimistona Vesijärven asialla:

13 LAKE VESIJÄRVI FOUNDATION Combination of public and private resources Established 2007 Secure funding for research, maintenance and management efforts Improve the awareness of Lake Vesijärvi Promote efforts to improve water quality in Lake Vesijärvi Mainostoimistona Vesijärven asialla:

14 FOUNDER BODIES OF LAKE VESIJÄRVI FOUNDATION City of Lahti Municipality of Hollola Municipality of Asikkala Society of Industrial Enterprises in Lahti, Press company Esan kirjapaino Ltd and a Welding company Kemppi Mainostoimistona Vesijärven asialla:

15 PRIVATE ENTERPRICES AND COMPANIES SUPPORTING THE WORK

16 OBJECTIVE OF LAKE VESIJÄRVI PROGRAMME To reach good status (as specified in the EU Water Framework Directive) To make sure the lakes within the Lake Vesijärvi Fundation s region are versatile in recreational value: water is clean and clear no extensive algae bloomings diverse fishstock large populations of fish good for recreational fishing enough water plants in the right places beaches good for swimming

17 MAIN PROBLEMS FACED AND TACKLED Too heavy nutrient load (P, N) Too dense stocks of planctivorous fish Massive blue green algae bloomings => low ecological status => no recreational value Vesijärvi puhtaaksi Facebookissa

18 WE HAVE REACHED A LOT Mainostoimistona Vesijärven asialla:

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22 Kuvat: Pekka Tuuri

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26 ANNUAL NUTRIENT LOAD Pi (kg/ha/a) change change Ni (kg/ha/a) (%) (%) Joutjoki 0,47 0,08 82,64 10,30 1,53 85,12 Merrasoja 0,16 0,13 19,25 3,30 3,10 6,11 Haritunjoki 0,20 0,25 24,49 7,80 9,40 20,56 Myllyoja 0,37 0,24 34,04 5,00 11,28 125,51 Äkeenoja 0,15 0,16 6,97 6,10 7,47 22,45 Häränsilmäoja 0,19 0,11 40,49 5,90 6,22 5,41 Virojoki 0,19 0,19 0,68 4,60 6,29 36,64 Mustoja 0,77 0,25 67,95 13,90 8,16 41,32 Hammonjoki 0,10 0,12 18,64 6,20 7,05 13,65 Kiikunoja 0,17 0,12 28,63 5,60 3,64 34,93 Purailanviepä 0,75 0,44 41,66 12,10 11,15 7,87

27 MANAGEMENT ACTIVITIES Mainostoimistona Vesijärven asialla:

28 LAKE VESIJÄRVI MANAGEMENT PLAN Communication activities Lake restoration measures Operations on drainage basin Reaserch activities Thematic programs and plans Monitoring activities Mainostoimistona Vesijärven asialla:

29 LAKE VESIJÄRVI MANAGEMENT PLAN Main focus: Artificial oxidation (to decrease internal load) Management fishing (biomanipulation) Wetlands New innovations and measures Information and communication Mainostoimistona Vesijärven asialla:

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31 Water pump

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33 Technical operation of a water pump

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35 FOOD WEB

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39 FUNDRAISING ACTIVITIES Mainostoimistona Vesijärven asialla:

40 Do you like to see under the water?

41 LESSONS LEARNED The activities can t be handled through action of public authorities alone. Rescue work requires the efforts of a large number of various operators. Local sense of environmental responsibility is needed and raised by Active co-operation with people having long history with Lake Vesijärvi Emphasizing mitigation measures which connect local people together Providing interesting and motivating environmental education Collating public and private funding requires Large effort on networking and dissemination Long term targets which will be achieved step by step Mainostoimistona Vesijärven asialla:

42 LESSONS LEARNED Scientifical and technical know how requires Long and succesfull co-operation with universities and research organisations Finding right people to right places The Lake Vesijärvi Foundation and the Vesijärvi co-operation are a way to organise the manifestation and actualisation of collective environmental responsibility Experiences gained in this framework can be utilised in European water policy framework and wordwide Mainostoimistona Vesijärven asialla:

43 Thank You