Plans were developed to convert the area (1,000 acres in size) into usable lands.
At least some must be cleared to obtain usable land.
He was followed by many others-within about sixty years, all the usable land had been taken.
Despite those hopes, however, usable land has always been severely limited.
This negatively affects agricultural productivity and leads to loss of usable land.
At the time, overpopulation and the limited usable land for farming was affecting Japan.
Road construction is difficult because of the high areas of population and the limited amount of usable land.
It has also the largest amount of land readily usable with 2.6 million hectares.
The main source of income is agriculture, with 80% of usable land under cultivation.
The reduction in road surface adds usable land for lots and parks.