Akira Miyawaki (our advisor and Professor Emeritus, Yokohama National University) advocates the concept of forested coastal levees. This project combines the disposal of the rubble from devastated areas and the creation of wooded areas. In future it is expected that the number of local governments and groups involved in tree planting will increase, and there is an urgent need to supply seedlings for this purpose. To address this pressing need, we are upgrading the facilities at existing tree nurseries, including the introduction of irrigation systems, expanding them and setting up seedling supply systems. Our organization's fields are an important source of tree seedlings for Iwate, Miyagi and Fukushima prefectures. Since they are located at the southern limit of the region in which outdoor seedling raising is possible we are improving our facilities and integrating them so that we can contribute to the recovery of the disaster-affected areas through the production of the high volume of tree seedlings required for forested coastal levees.