Abstract
It became an important key around the urbanised areas how to control and preserve the aglicultural and forestry fields against to the urbanization. But, the land use plannings were mostly discussed and organized from the side of city and urban planning.
In flat areas, the growing patterns of urbanization also has no relations to natural land conditions. The land use plannings relate to natural land potentials are to be discussed and appropriate land use controls should be bring into practice.
In this study, the relation between the landscape changes and land use changes were discussed (figure1). Then the general ideas that explain the existing situations of land uses were proposed. Those are “adaptable” zone, “most adaptable” zone and “stable” zone. On the process. the land use items were divided into three groupes. The first is the forestry area, the second is the aglicultural area and the third is the urbanized area. Adaptable zones and most adaptable zones can be explain with the natural land conditions.
Stable zones can be determine through the dynamic balance of existing land use groupes.
Finally, the stable zones of every land use groupes were suggested by the slope degree of land in Osaka prefecture through mesh analysis. And the process of calculation of slope degree is shown in f gure 5.
The forestry areas are stable on sloped zonesand the slope degree is over 7. The aglicultural areas are stable on the sloped and flat areas and their slope degree is fom 0 to 8. But the zone of the slope degree from 0 to 4 can be more stable zones as rice fields and farm areas. But the flat areas (slope degree=0) were mostly urbanized and natural land uses were reduced.
Here the relation between land use and slope degree were discussed mainly. But there are more and more elements that relate to land use and we should find out more planning and analysing units that can cover the land use elements and natural elements.
