中文摘要：

热带森林是陆地上物种最丰富和结构最复杂的森林生态系统,同时也是受景观破碎化影响而生物多样性丧失最严重的植被类型。在对海南岛霸王岭热带天然林进行公里网格样方调查的基础上,采用栅格途径及统计方法对三期遥感影像数据进行了景观格局和动态规律分析。结果表明：霸王岭热带天然林景观由4个处于不同恢复阶段的林分斑块（I、II、III和IV）组成;在1986～1998年,除林分斑块IV外,大多数斑块类型都发生了显著的变化,而在1998～2002年,大多数斑块类型变化不显著。在1986～2002年,大多数斑块类型破碎化趋势明显,表现为斑块数、边缘密度持续增加,以及斑块平均大小和核心区面积不断减小;恢复较早期阶段的次生林（I、II和III）与恢复较后期林分（IV）之间的距离显著相关。随着与IV距离的增加,恢复时间短的次生林所占比例逐渐增加。

英文摘要：

Aims Effective protection of tropical forest requires understanding changes in landscape pattern during the forest recovery process. Our aims were to 1） examine forest recovery dynamics and landscape pattern change and 2） explore the impact of proximity of mature forest fragments on secon-dary succession. Methods We investigated 135 sample plots in a natural tropical forest landscape of Bawangling,Hainan Island,China. Three Landsat Thematic Mapper （TM） imageries from 1986,1998 and 2002 were used along with a grid-based approach and statistical methods to analyze forest recovery dynamics and landscape pattern change. The spatial relationship between mature forest fragments and different suc-cessional stage forests was analyzed by buffer analysis and Chi-square analysis. Important findings There were four forest patch types based on stage of recovery. Between 1986 and 1998,the proportion of all patch types except late-successional forest changed significantly; however,between 1998 and 2002 most of the patch types were little changed,indicating that deforestation de-creased. From 1998 to 2002,the number of patches and edge density increased and mean patch size and core area decreased in most patch types,indicating that fragmentation of the study region increased. The distribution of secondary forest was significantly correlated with proximity to late-successional forest,because the proportion of young secondary forest gradually increased with greater distance from late-successional forest. This suggests that proximity of late-successional forest facilitates forest re-covery following human disturbance.