kaamatti wetland, ÄhtÄri, finland - kosteikko.fi · 2014-10-27 · • big float –works...

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Life+ Return of Rural Wetlands

KAAMATTI WETLAND, ÄHTÄRI, FINLAND

Text: Juha Siekkinen, Life+ Return of Rural Wetlands, Finnish Wildlife Agency, 17.10.2014Photos: Juha SiekkinenMaps and aerial photos: © National Land Survey of Finland, license number 326/MML/11 and 053/MML/13

KAAMATTI WETLAND – THE OBJECTIVES AND LOCATION• The objectives are to

� Create habitats for wetland fauna, in particular for waterfowl� Promote biodiversity, landscape and multifunctional land use� Act as demonstrative site of wetland work in the region

• The location on MapSite (© National Land Survey of Finland):– http://kansalaisen.karttapaikka.fi/kartanhaku/paikannimihaku.html?e=346173&n=6954955&scale=

4000&tool=siirra&width=600&height=600&mode=orto&lang=en

THE COSTS AND THE ACTIONS OF THE KAAMATTI WETLAND RESTORATION PROJECT

• Total area of Kaamatti lake is 6,0 hectares, of which open water area before restoration was 3,0 ha, medium depth about 1 m

• The actions, time consuming and the costs of the restoration:– Big Float Amphibious Excavator: 65 working hours (costs as normal price is 220-250 EUR/hour + VAT 24

%), work involved the increasing of new open water areas on 1,4 hectares. – Excavator and tractor works: 29,5 working hours (costs 50 EUR/hour + VAT 24 %). restorations of the

ditches of inflow and the restoration of the outflow. – Materials 150 €: notice board– Wetland planning and field working 2 000 €

– Life+ Return of Rural Wetlands accounted 100% of the costs

• Big Float –works conducted by Ruoppaus Tiimi Oy, Ähtäri (ruoppaustiimi.fi) 22.-27.11.2013• Excavator and tractor works conducted by Tmi Mikko Haavisto, Ähtäri 12.-13.9.2013• No water control structures were installed• Wetland implementation planning Juha Siekkinen Life+ Return of Rural wetlands in

collaboration with Juhani Luodeslampi (representative of the landowners of Kaamatti wetland) and especially Mikko Haavisto, Pekka Vesala, Heikki ja Matti Lähteenmäki (neighbouring landowners)

• Wetland management: neighbouring landowners • Waterfowl hunting is possible in Kaamatti• Waterfowl censusing in environmental monitoring

– waterfowl point counts 4 times/year: 2 counts in late spring, 1 brood count in July and 1 late summer count in the beginning of August (before the beginning of waterfowl hunting season)

– conducted by Finnish Wildlife Agency, Pohjanmaa regional office

KAAMATTI AREA BEFORE AND AFTER THE IMPLEMENTATION• Aerial image left (photographed about 2005) BEFORE IMPLEMENTATION: Kaamatti (9 ha) was mainly

covered by aquatic and moss vegetation and there was only 3 ha open water area in the middle. About 50 years ago Kaamatti was almost totally open water area. Then the natural outflow (Kaamatinpuro, small river, on eastern site) was excavated which decreased the water level of Kaamatti about 50 cm, and gradually during the decades the area began to be turned to swamp-like, wet biotopes

• Aerial image right (photographed 2014) AFTER IMPLEMENTATION. New open water areas and channels are visible

Outflow ditch

Inflow ditch

Inflow ditch

Inflow ditch

Inflow ditch

Kaamatti wetlands before the restoration activities• Lake was dominated by dense stands of cattail (Typha latifolia, above)

especially in southern area and horsetail (Equisetum fluviatile) © Juha Siekkinen 7.7.2011

COLLABORATIVE PLANNING OF KAAMATTI WETLAND

• Collaboration in planning started in the

beginning of wetland project

• Above: Game planner Juha Heikkilä Finnish

Wildlife Agency, Pohjanmaa regional office

presents the preliminary restoration plans to

local people.

• Left: Field planning with the wetland and

neighbouring landowers and Ossi Rissanen,

Ruoppaus Tiimi Oy (second left). Nowadays in

this site in southern corner is open water area© Juha Siekkinen 18.6.2012

© Juha Siekkinen 30.1.2012

WETLAND PLANNING AND BIODIVERSITY MONITORING

• Left: Jukka Pietarila (left) and Arto

Rautio from Metsähallitus Natural

Heritage Services conducted the

topography levelling on Kaamatti.

• Below: Juha Siekkinen monitored

dragonflies and Moor Frog (Rana

arvalis).

• Kaamatti is breeding habitat for e.g.

Moor Frog (protected by EU Habitats

Directive and 1 other international

agreement). For example, work done

in winter months is allowed be done

in areas devoid of hibernating Moor

Frog.



Erythromma najas© Juha Siekkinen 18.6.2012

Leucorrhinia rubicunda© Juha Siekkinen 7.7.2011

Leucorrhinia rubicunda© Juha Siekkinen 7.7.2011

Coenagrion hastulatum© Juha Siekkinen 8.8.2011

• Increasing open water area and mosaicstructure were conducted by the Big Floatby Ruoppaus Tiimi Oy.

• The Big Float Amphibious Excavatorpontoon undercarriage is a platform that creates a safe working environment in otherwise unsafe locations. It can be used for excavation works in the most challenging of terrain, such as marshland, shoreline and industrial waste ponds, as

well as in open water(http://www.remu.fi/remubigfloatenglishscreenversi

on.pdf)

EXCAVATION WORKS ON KAAMATTI IN 2013


• Increasing open water areas and mosaic structure

were conducted by the Big Float Amphibious

Excavator 22.-27.11.2013.

• There are many advantages of using Big Float: it is

possible to conduct restoration actions also in

summer period, it is capable to move in open

water areas and landscaping can be conduct

during restoration.


EXCAVATION WORKS IN KAAMATTI IN 2013


• Wetland was created by digging 5-12 m wide channels. Only vegetation on lake surface were

removed and ground sediment was left untouched.

• Digged material was spread to shore of the wetland. Landscaping were done rather roughly to save

excavator costs © Juha Siekkinen 27.11.2013

BEFORE WETLAND RESTORATION © Juha Siekkinen 25.5.2011

DURING RESTORATION © Juha Siekkinen, 13.9.2013

KAAMATTI WETLAND BEFORE AND AFTER RESTORATION: southern side


AFTER WETLAND RESTORATION © Juha Siekkinen 25.6.2014

• Southside of Kaamatti was totally covered by aquatic vegetation. During

spring time when it is flood, there were wet area (like picture above), but in

summer it was totally dry and mire-like area

• After restoration the same area is open water area and new habitats for

waterfowl and Moor Frog are available.


WETLAND FINISHED© Juha Siekkinen 25.9.2012

BEFORE WETLAND RESTORATION© Juha Siekkinen 10.5.2011

BEFORE WETLAND RESTORATION© Juha Siekkinen 22.11.2013

BEFORE WETLAND CREATION © Juha Siekkinen 10.5.2011

AFTER WETLAND RESTORATION© Juha Siekkinen 25.6.2014



KAAMATTI WETLAND BEFORE AND AFTER RESTORATION: eastern side



KAAMATTI WETLAND BEFORE AND AFTER RESTORATION: nortwestern side

MEDIA WORK ON KAAMATTI WETLAND

• Journalist Liisa Ahokas, ÄhtärinjärvenUutisnuotta(local newspaper) has prepared two articles of Kaamatti wetland restoration, during (25.11.2013) and after restoration (25.6.2014) . Thanks to her!

© Juha Siekkinen 25.11.2013 and 25.6.2014

kaamatti wetland, ÄhtÄri, finland - kosteikko.fi · 2014-10-27 · • big float –works...

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