【摘要】 以昌江县生态环境脆弱风沙危害最为严重的昌化大角为典型研究区,依靠对1937年、1959年和1975年大比例尺地形图土地利用类型的解译数据,并参照其他文献,研究了1937～1975年之间海南岛昌江县LUCC的总趋势和过程.结果表明:昌江县的LUCC较为显著,并存在明显的时空差异,总的趋势是1959年以前变化和缓,以后剧烈.持续增加的是水田、建筑用地、有林沙地;旱地、林地在50年代减少,以后增加;裸沙地和荒草地在50年代增加而以后减少.工业化、城镇化、商业化及国家政策等因素是土地利用变化的驱动力.更多还原

【Abstract】 Taking Changhua big angle as a case study, which is subject to serious sandy land degradation due to the fragile eco-environment, this paper discusses the total trend and course of the LUCC of Changjiang county in Hainan Island from 1937 to 1975, based on the interpretation data of land use pattern from big scale map in 1937, 1959 and 1975. The results show that the LUCC of Changjiang county is comparatively remarkable, and there exists obvious space-time difference. The LUCC as a whole is gentle before 1959, and violent afterwards. The lands that increased continuously are the paddy field, building site, sandy woodland. Rainfed cropland and woodland decreased in the 1950s but increase afterwards; while the naked sandy land and shrub land followed just in the opposite way. The factors, such as industrialization, urbanization, commercialization and state policies are the main driving forces that lead to the change of land utilization.更多还原