GROWTH AND EVALUATION OF ENVIRONMENTAL PROTECTION FORESTS PLANTED IN FUJI CITY, SHIZUOKA PREFECTURE

Abstract

Although a large number of activities have been conducted in planting so-called construction of environmental protection forests by use of potted saplings, little has been done to explore continuously the growing behavior of planted saplings. The growing process of potted saplings was investigated for 10 years in Fuji City, Shizuoka Prefecture. The average height 10 years after planting for evergreen broad-leaved tree at the Fuji site exhibited 496 cm and 534 cm on summer green trees, and showed a 74.0 mm and 82.7 mm basal diameter, respectively. These data on height and basal diameter were compared with several other data on environmental protection forests in Japan. As a result of comparison, the growing process of the Fuji site evaluate well-developed cases in both height and basal diameter. Especially the measured value of summer green trees at the Fuji site obtained remarkably satisfactory results. It seemed that warm temperatures, fertile top soil, and intensive and premeditated management are attributed to the superior growing process of planted saplings at the Fuji site.