海南岛成土母质的地形多样性分析

SOIL PARENT MATERIAL BASED GEOMORPHIC DIVERSITY IN HAINAN ISLAND,CHINA

多样性指数、多度分布模型等统计手段长时间以来在生态学领域被用于分析不同生态体的发生规律。本研究中将类似手段用于地形多样性 (作为地多样性的研究案例 )分析中 ,讨论基于海南岛土壤—地形体数字化数据库 (SOTER) ,通过对不同成土母质上地形类别的丰富度指数 (S)、多样性指数 (Shannon指数H′)和均匀度指数 (PielouE)的计算 ,不同成土母质上地形类别多度分布模型的建立与应用 。

Diversity indices and abundance distribution models are statistical tools which ecologists have applied for decades for analyzing the intrinsic regularities of various ecological entities. In this work, similar techniques are used to analyze geomorphic diversity (as an example of geodiversity in a broad sense), and discussions are conducted on the basis of the SOTER digital databases of Hainan Island, China. Through calculation of indices of richness ( S ), indices of diversity ( H ′) and indices of evenness ( E ) of landform categories of soil parent materials, and establishment and application of the model of multi distribution of landform categories of different soil parent materials, the analysis of geomorphic diversity of different soil parent materials in Hainan in the GIS environment can be expressed digitally.