| Budget Amount *help |
¥3,300,000 (Direct Cost: ¥3,300,000)
Fiscal Year 2002: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2001: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2000: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1999: ¥1,800,000 (Direct Cost: ¥1,800,000)
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| Research Abstract |
For the purpose of understanding of forest landscape architecture and the methodology of forest management in the warm temperate Satoyama area, a few investigations as follows were carried out.
1. An approach from tree architecture analysis.
2. A case study on forest landscape in Shizuoka University Forests.
3. Long-term monitoring of Fauna appearing in a forest landscape.
A few important results were obtained from these trials as mentioned above. First, tree architecture development in 3 evergreen coniferous tree species was analyzed and consequently the standing shoot mass par tree (F(t)) evaluated by the total extension growth increments at time t could be approximated by the following extended relative growth functions,
【numerical formula】 (1)
where the r values were approximately 3 regardless of growth sites. In contrast, those in broad-leaved tree species (17 species) could be approximated by simple relative growth function and in addition they indicated lower r values than evergreen conifers and approximately 2.18 in the mean value. A few additional different features (e.g., branch abscission pattern, leaf weight/shoot length ratio with age, etc.) were recognized, as well. These differences between them is closely related to the difference in tree architecture and growth strategies between them. In addition, from the result of a cost-benefit analysis in broad-leaved tree species, it was suggested that broad-leaved tall trees shows competitive and sedentary strategy.
After all, Landscape structure and growth increments of the Kamiatago University Forest of Shizuoka Univ. was surveyed and then a planning model of forest landscape management was proposed from the view point of multi-traffic theory conducted by the results obtained from ecological researches as mentioned above.
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