2 the productive afforestation during timber production period from medium 1960 s to 1970 s and the continually protective afforestation after the setting up of the nature reserve were the primary causes of the significant variation for vegetation distribution pattern along topographic gradients during the study period . furthermore , natural recovery process also gave an impulse to the pattern changing . some obvious phenomena of human impact on natural vegetation can also be watched in our working area . decreasing of coniferous forest and broad - leaved forest with the simultaneous increasing of shrub reflected the type and spatial characteristics of human disturbance activities in working area . the related management department should consider the above problems more seriously 结果表明： 1 20世纪60年代中期大规模森林砍伐活动使林地的分布格局受到强烈干扰，这种影响一直延续到80年代中期2研究时段内的生产性育林活动保护性育林活动和自然植被恢复过程，对森林植被类型的地形分布格局产生了显著的影响3保护区目前仍存在着一些显著的人为干扰现象，针叶林及阔叶林比重的减少和灌丛数量的相应增加，反映出保护区目前人为干扰活动的主要类型和空间分布特征，应当引起管理部门的足够重视。
For rainforest campaigners , the bali statement ' s allusion to an urgent need for “ meaningful action to reduce emissions from deforestation and forest degradation ” was a sweet victory , even if the only concrete step in that direction was a “ work programme ” to test various approaches 对保护热带雨林的活动人士而言，巴厘声明暗示要迫切进行"有意义的行动去减少因森林砍伐和森林退化所引发的排放量" ，这是一场甜蜜的胜利，尽管在此方向所采取的唯一具体步骤还只是尝试不同方案的"工作计划" 。
