KIELO - The living nature of stone

Kielo is NCC Industry's way towards enhancing biodiversity on stone aggregate sites.

Hand in hand towards a diverse and rich environment

NCC Industry's KIELO programme was launched in 2012. The programme aims to implement methods of biodiversity enhancement on stone quarry sites during and after its operational period.

The programme emphasizes the special features of each area when evaluating the right methods for restoration of the area. Many habitat types which are easily compiled on stone quarry areas are endangered. Such areas are for example hot sunny areas such as meadows and fields, rocky areas, decaying wood areas and wetlands. The projects are usually planned with local NGO’s and specialists.

The name KIELO comes from the Finnish words ”KIviaineksen Elävä LuontO” which means ”The living nature of stone.” The name was chosen through a competition held for the staff of NCC.

“Sustainable development is a big thing for NCC and it is an important part of our vision. The KIELO programme is an excellent example of this. We are looking at a new way of dealing with the closure of quarry sites taking into account the environment as well as the local residents”, tells Business Development Manager Taina Piiroinen.

There are four active KIELO areas in Finland at the moment. The first KIELO area was established in Ohkola quarry in Mäntsälä. Other areas are in Vanhakylä quarry in Loviisa, Myllypuro quarry in Nokia and Kuismala quarry in Tampere. There are four new project areas under planning and smaller projects are also being developed.

Kiuru area (Skylark) in Ohkola quarry, Mäntsälä

Kiuru area is located at the Ohkola quarry in southern Finland. The biodiversity area is about 4 hectares. Ohkola receives clean top soils and the received soil has been used for landscaping. Vegetation has grown well in the area with the contribution of the seedbank in the received soil. A southbound slope was planted with seeds of meadow flowers in the autumn of 2015. A butterfly survey has been conducted in the area twice so far. Summer of 2014 was excellent for butterflies and as a result 393 species were identified. The results for 2015 have not been received yet, but the summer has not been favourable for invertebrates.

Lahokko area (Dead wood) in Vanhakylä quarry, Loviisa

The Vanhakylä quarry was opened in 2014 so it’s a very new area. The area reserved for the KIELO project is located in the noise barrier of the site. In June 2015 a dead wood zone was built on the south side slope of the noise barrier. The area is favourable especially for saprotrophs such as various hymenopterans. More wood will be brought to the area gradually to ensure that there is wood in different stages of decay.

Cinna area in Myllypuro quarry, Nokia

Cinna-area in Myllypuro aims to restore the drooping wood reed (Cinna latifolia). The reed is protected by the EU directive. The plant has been known to grow on the area and restoration work was conducted in the summer of 2014. Restoration included activating the seedbank in the area and ensuring the habitat is more suitable again for the plant. Competetive grass species were removed from the area.

Tulikattila area (Fireboiler) in Kuismala quarry, Tampere

The aim of the Tulikattila area is ecosystem restoration through fire. The main focus on the area will be on meadow type habitats with fire as the method of restoration. The method has been used in cultivation before industrial agriculture but it is very rarely used in these types of projects. Small alleyways will be built in the area for example by using recycled concrete. Novel ecosystems are also a big part of this area, where new types of ecosystems will be created with recycled material.