1990 年 69 巻 10 号 p. 915-923
Environmental degradation is a problem affecting the entire earth today. Among the most serious is desertification, now found in many places of the world, the solution of which is urgently required not only for ourselves but also for the future generations. In Sudan-Sahelian zone, where the desertification problem is most serious, the rate of population growth is as high as 2 percent a year. Some measures must urgently be taken to preserve the living environment for those people. Thus the need for technologies for development of the desert land will grow in the near future. This study examunes the present situation of desertification of, and approaches to, the development of the desert environment.