通过实地调查和对遥感信息、林业二类调查资料的研究,简要分析了海南岛森林的历史变迁和驱动原因,详细探讨了不同时期海南岛森林覆被动态变化过程与驱动因子。主要结论:1)海南热带天然林面积变化明显,从1950年的1200000hm²下降至1979年的415200hm²,到1998年恢复到614700hm²;2)从历史时期至现在,森林覆被变化可分为森林递减(～1987年)和森林恢复(1987～)两个时期;3)空间变化主要表现在:砍伐森林由沿海平原台地逐渐向内陆丘陵盆地扩展,最后到达中部山区;4)不同时期影响热带天然林变化的主要因素不同

The driving forces and the changes of the tropical forest in Hainan Island of China were studied mainly by means of analyzing investigation data and forest survey materials, interpreting remote sensing data, using contour maps, and overlaying them with GIS, investigating the spatial variation survey and visitation during April of 1998 and May of 1999. The dynamic changes of tropical forest change as follows: 1) The area of tropical forest in Hainan Island changed obviously, which decreased from 1 200 000 hm² (1950) to 415 200 hm² (1979), and restored to 614 700 hm² by 1998.2) Since historical times, the changes can be divided into deceasing period (-1987) and increasing period (1987-). The former can be subdivided into three phases: resource decreased slowly (from Han Dynasty to 1933, annual average decrease of 984 hm²), resource decreased sharply (1933～1979, annual average decrease of 27 800 hm²) and resourcedecreased slowly (1979-1987); from1978 to 1998, the resource was restored steadily, annual average increase 20 300 hm². 3) Thespatial changes are mainly represented in the processof deforestation taking place from coastal plain and mesa to inland hill and basin, and finally to mountainous areain the middle of theisland. 4) Themain factors which affect the tropical forest are not the same in different phases. FromHan Dynasty to 1933,it is just due to aboriginal cultivation; from 1933to 1950, it is due to plundering cutting and destroying; and in the last 50 years, the ultimate causeis due to over fastincreasing of population and changes in policy and economy system.