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不同人类活动方式所造成胁迫因素通过错综复杂的交互作用共同影响着海南岛天然林生态系统健康。论文通过图论分析法将各种胁迫间交互作用关系矩阵化,然后通过矩阵计算分析它们间的内在联系,有助于把不同胁迫间错综复杂的交互作用关系简明化。图论分析结果表明旅游娱乐业、森林火灾、经济林种植、热带农业、木材砍伐等不仅影响力大,而且敏感性高,应该作为不同胁迫因素间交互作用分析中重点关注的胁迫因素;胁迫因素集合中存在强连通性子集,对子集中任何一种胁迫因素所造成的风险评价都需要考虑其对或受到集合中其它胁迫因素的影响。不同胁迫相互作用关系中,协同增大效应占主导地位,可能通过协同效应加大对天然林生态系统的不利影响。
The coercive factors caused by different manners of activity all affect the natural forest ecosystem health of Hainan Island through a complex interaction. In the paper, the relationship between various stresses is matrixized by graph theory analysis, and then the internal relations between them are analyzed through matrix calculation, which helps to simplify the complex and complex interactions among different stresses. The results of graph theory analysis show that tourism and entertainment industry, forest fire, economic forest planting, tropical agriculture and timber cutting are not only influential but also highly sensitive, they should be regarded as stress factors in the interaction analysis of different stressors; stress factors There is a strong subset of connectivity and the risk assessment of any of the stressors in the subset needs to take into account their impact on or by other stressors in the set. Among the different stress-interaction relationships, the synergistic increase effect dominates and may increase the adverse impact on the natural forest ecosystem through the synergistic effect.