论文部分内容阅读
从综合丰富度、均匀度、多样性的角度评价林分群落物种多样性,提出物种多样性综合指数的概念,突破传统以单方面描述物种多样性的局限。以湖南省平江县福寿国有林场为案例,利用24块样地数据,对筛选出的指标运用CRITIC法确立权重,得出各样地物种多样性综合指数的计量模型,既反映了物种多样性指数的传统信息,又反映了实际样本数据的信息,使得综合指数的结果更加合理。
The species diversity of stand community was evaluated from the perspective of comprehensiveness, evenness and diversity, and the concept of composite index of species diversity was put forward, breaking the tradition to unilaterally describe the limitations of species diversity. Taking the Fushou State-owned Forest Farm in Pingjiang County of Hunan Province as a case study, 24 plots of land use data were used to establish the weights of the selected indicators using the CRITIC method. The econometric models of the comprehensive index of species diversity were obtained, which not only reflected the species diversity index The traditional information, but also reflects the actual sample data, making the result of the composite index more reasonable.