Geography of Agricultural Land

Abstract

At the small land, like in Japan, it is not adequate to explain the relation between land and agricultural management studying only the relation between nature and agricultual crop. Important is the process of development in which, nature turns to the agricultural land or forestland.About preservatiou of agricultural land the important problems are how to protest the agricultural land from flood, droght or soil erosion. They consider the natural and cultural reason of outbreak of damage and they are going to clearify the conditions hindering from restoration of field & establish the plan. At the problem of land improvement they study the irrigation of field, equipment to adjust water temperataue and drainage.Altitude limit of the rice field is higher in southwestern and central Japan and lower in northeastern Japan. This is caused by climatical, technical or economical-social reason. Geographic study of water preservation tells us that water is well reserved in the rice field of independent farmers while bad in that of tenant farmers. The tenant farmers have few found and the farm would not become their holding even if they cultivate, so they could not deal with water-leaking or adjustment of floor. Even if they made “Nurume” temperature had not been raised effectively, because it took much time to go and come to their scattered farms, and they could not manage it as the labor power was wanted.