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STUDY ON LAND USE AND ENVIRONMENTAL CHANGE OF DAMBO

丹博土地利用与环境变化研究

基本信息

批准号：
04041094
负责人：
SHIMADA Shuhei
金额：
$ 12.48万
依托单位：
TOHOKU UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for international Scientific Research
财政年份：
1992
资助国家：
日本
起止时间：
1992 至 1993
项目状态：
已结题

项目摘要

Dambos are grass-covered wetland which is seasonally waterlogged. The dambo in Southern Africa covers an area of about 3.6 per cent of Zimbabwe and 4.6 per cent of Zambia.As agricultural production had become an important quest in Sub-Saharan Africa, the dambo areas have begun to get much attention because of its moist conditions. The more area of dambo is brought under cultivation, the more environmental problems occur. As dambo's environment is very vulnerable and intermingled in nature, it is very urgent necessity that the process and mechanisms of degradation, desiccation and soil erosion of dambo area should be made much clear. This is the reason why this research project was organized.In this research, we conducted very intensive field survey at one of the dambo, called Kanchoncho at Chinena village, Zambia and also comparative study at Zimbabwe and Nigeria. It has become clear that, since the economy of these countries had become stagnant, the demand for agricultural land use at the dambo dambo area had become very big. And in the countries like Zambia where there is no legal restrictions, people have rushed to the dambo area, and in Zimbabwe where people are prohibited to use the dambo area, people's demand for the land of dambo has increased.The Structural Adjustment Program (SAP) which is widely adapted in the Sub-Saharan countries these days has strengthened these tendencies, which hastened the deterioration of dambo environment.

丹博是草覆盖的湿地，季节性涝渍。南部非洲的丹波地区约占津巴布韦的3.6%和赞比亚的4.6%，由于农业生产已成为撒哈拉以南非洲的一项重要任务，丹波地区因其潮湿的条件而开始受到人们的关注。种植的丹波面积越大，环境问题就越多。由于丹波地区的环境十分脆弱和复杂，弄清丹波地区退化、干化和土壤侵蚀的过程和机理是十分迫切的。在本研究中，我们在赞比亚Chinena村的一个名为Kanchoncho的dambo进行了非常密集的实地调查，并在津巴布韦和尼日利亚进行了比较研究。很明显，由于这些国家的经济停滞不前，对dambo dambo地区农业用地的需求变得非常大。而在赞比亚等没有法律的限制的国家，人们纷纷涌向丹波地区，在津巴布韦，人们被禁止使用丹波地区，人们对丹波土地的需求增加了。目前在撒哈拉以南国家广泛采用的结构调整计划（SAP）强化了这种趋势，加速了丹波环境的恶化。