以三亚市生态补偿区生态公益林为研究对象,从森林的结构、稳定性和功能性3个方面构建了森林生态评价指标体系,在此基础上,以小班为评价单元,对研究区的森林生态水平进行了评价。结果表明:森林生态评价的6个指标层因子权重由大到小分别为:森林蓄积量(0.25)、森林自然度(0.20)、森林群落结构(0.20)、森林健康等级(0.15)、郁闭度(0.10)、平均树高(0.10)。4个区域整体生态水平处于中等水平,而抱安区的生态水平是最高的,4个区域的森林生态水平大小为抱安区>那会区>青法区>扎南区。
With the ecological public welfare forest in Sanya city as the research object and on the basis of the structure,stability and functions of the forest,an index system of forest ecological evaluation was constructed.Based on this,the forest ecological level of the study area was evaluated with the small class as the evaluation unit.The results showed that the six indicators of forest ecological evaluation factor weights from big to small were:forest volume(0.25),forest naturalness(0.20),forest community structure(0.20),forest health level(0.15),canopy density(0.10) and the average tree height (0.10). Four overall regional ecological levels were at the medium level,and the ecological level is the highest in Baoan area.The level of forest ecology in the four regions was Baoan area >Nahui area >Qingfa area >Zhanan area.
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