抄録
This study intends to make the following research;(1) firstly to examine the present conditions in wooded areas where maintenance works of woodland have been long neglected in the wake of local timber market shrinkage due to the increase of imported timber volume, (2) secondly to estimate the due impacts over environmental conditions in the downstream areas including urban areas, (3) thirdly to figure-out and propose the national land-management policy to systematize resources-recycling in a river basin based on the financial linkage between urban areas and wooded areas.
