海南岛不同地形上土壤性质的多样性分析

多样性指数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,本研究将类似手段用于某些土壤性质 (土壤发生层次、土层厚度和土壤容重) 多样性的分析中,讨论基于海南岛土壤－地形体数字化数据库 (SOTER),通过对不同地形上土壤发生层次、土层厚度和土壤容重等某些土壤性质类别SOTER单元的丰富度指数 (S)、多样性指数 (Shannon指数H') 和均匀度指数 (Pielou E) 的计算,类别多度分布模型的应用,并在地理信息系统环境中实现了海南岛不同地形上某些土壤性质多样性分析的数字化表达。

Landform Based Pedodiversity of Some Soil Properties in Hainan

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 pedodiversity of some soil properties, and discussions are conducted on the basis of the SOTER digital databases in Hainan Island of China. Through calculation of indices of richness (S), indices of diversity (H') and indices of evenness (E) of soil profile depth types, soil horizon number types and soil (surface) bulk density types of different landforms, and establishment and application of the model of multi-distribution of soil profile depth types, soil horizon number types and soil (surface) bulk density types of the landforms, the analysis of pedodiversity of some soil properties of different landforms in Hainan under the GIS environment can be expressed digitally.