About the preservation of trees and the conservation of topsoil associated with development activities

In the following cases, consultation is required.

• Urbanization area: Development activities with a development area of 0.5 ha or more
• Urbanization adjustment area: Development activities with a development area of 0.3 ha or more

Trees to be preserved

1. Healthy trees with a height of 10m or more
2. A group of healthy trees with an area of 300 square meters or more, where trees with a height of 5m or more are generally united in 10 square meters.

Preservation Measures

1. Please take measures to preserve the target trees.

※Avoid cutting and embankment as much as possible under the vertical projection surface of the branches of the trees to be preserved.

Targets to take conservation measures

1. When the total area of land for cutting or embankment exceeding 1m in height is 1,000 square meters or more

Topsoil targeted for conservation

1. Surface soil containing organic substances essential for plant growth

conservation's Measures

1. Restoration of topsoil…When the development is completed, please restore it to the planting area.
2. Guest soil…Cover the planting area with topsoil collected from outside the development area.
3. Soil Improvement…Plow the soil generated in the development area with soil improvement materials and fertilizer.