油茶林健康评价指标体系构建初探

Establishment of the Index System in Health Assessment of Camellia oleifera

根据森林生态系统健康评价理论,分析了油荼林健康的内涵,按照科学性、系统整体性,可行性及易操作性等原则进行指标选择,提出了一套油茶林健康评价指标体系,应用AHP法计算了各指标的权重,并以此划分了影响油茶林健康状况的强、中、弱三类因子。结果表明:一级指标中以社会经济指标影响最大,约占63.70%;三级指标中单位面积产油量(0.229 2)、单位面积产果量(0.117 7)和投入产出比(0.164 2)所占的权重最大,营林措施(0.104 8)次之,占总和的61.59%;而三级指标中其它21项指标的单项权重值均小于0.1,它们属于弱影响因子。

The connotation of healthy oil-tea （Camellia oleifera） forests was discussed based on the forest ecosystem health appraisal theory. A index system for the assessment of the health of oil-tea forests was established following the principles of scientific attribute, system integrity, feasibility, easy maneuverability. Indices were weighed by AHP method, and divided into three catalogues： strong, medium and weak. It was found that social and economic indicator exhibited the strongest influence among the first-level indicators, accounting for 63.70M. The oil output, seed quantity, and input-output ratio demonstrated the strongest influences among the third level indicators, accounting for 0. 229 2, 0. 117 7 and 0. 164 2 respectively, followed by management measure （0. 104 8）, accounting for 61.59% in the total sum. The weighted values of other 21 indicators were less than 0.1 in the third level indicators, belonging to weak factors.