Studies and inventories

During the course of the project, nature inventories will be carried out at several sites, and these are necessary for the background of the planning of the management and use of the sites will be carried out at several sites. In addition to these, a socio-economic study assessing the effects of the project will be carried out during the project.

Study of the sediment in the Kokemäenjoki Estuary

The heavy metal and mercury content of the earth which has formed sedimentary layers in the Kokemäenjoki Estuary will be studied, as will the development of the estuary and the changes in it. In addition to identifying the location and content of harmful materials, the aim is to clarify the speed of progression (in other words, how fast the sedimentation is taking place), and also how the filling of the estuary basin occurs, and how quickly. Turku University's Department of Geology and the Geological Survey of Finland (GTK) are responsible for this work.

The Kokemäenjoki Estuary

In the past the natural state of the river estuary has been changed by all kinds of excavation work, and hazardous substances are known to have been carried into the estuary. A study of the sediment is required as support for the management and land-use plan that will be carried out in the area. When the restoration of the river estuary is being planned, an assessment can be made as to what excavation work is required and what excavation work is feasible, on the basis of the data from the abovementioned study. The area connected with the estuary is one of the most sensitive flood zones in Finland, and the study will also facilitate the assessment of measures that are aimed at a reduction in flood damage.

The large white-faced darter dragonfly,
photograph: Sami Luoma

Dragonfly inventories

Dragonfly inventories will be carried out at Puurijärvi Lake, Kokemäenjoki Estuary and Preiviikinlahti Bay. Where wetlands are concerned, knowledge about the species of dragonfly and their occurrence is generally poor. However, it is known that protected species generally occur in wetland environments. The large white-faced darter dragonfly (Leucorrhinia pectoralis), amongst others, is found in these environments. This dragonfly is included in the species listed in the Habitats Directive, Annex II.

Socio-economic study

In general, the effects of the projects on people's opinions and attitudes are assessed inadequately. However, these are of great relevance to the success of nature conservation and related projects. Changes in attitudes and the economic effects of the project will be assessed in the areas during the course of the Kokemäenjoki-LIFE project. Turku University's Satakunta Environmental Research Institute will be responsible for the study. Interviews and questionnaires will be used to carry out the study. The projects' cost data will also be used. The report will be published.

Published 2014-06-19 at 14:56, updated 2014-06-19 at 14:56