Assessment of soil diversity using soil maps with different scales in Eastern Fennoscandia, RussiaстатьяИсследовательская статья
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Дата последнего поиска статьи во внешних источниках: 8 сентября 2020 г.
Аннотация:Soil-landscape studies using quantitative methods tackled as pedodiversity recently became popular in soil geography. The experience gained in their application to different territories and at different scales is not plentiful yet, and the regularities revealed are not always evident and unambiguous. The present study aimed to investigate the effect of mapping scale and the classification used for mapping on the pedodiversity indices and taxonomic distances between the soils reflected on the maps. The research on pedodiversity was performed in Eastern Fennoscandia with its rather simple, although variegated soil cover. Pedodiversity indices were shown to be higher when calculated using a large-scale map (1: 10,000) versus the small (1:2,500,000) and medium-scale (1:500,000) ones. The contrast between soil taxa in map legends did not depend on the scale and the taxonomic level either. Pedodiversity indices strongly depended on soil classification in the map legend. The Shannon-Wiener index was lower when the WRB system was applied in soil map legend than in the case of classification systems used in Russia. Mean taxonomic distances between soil taxa presented in the legends in two classification systems were still more homogeneous, while differential analysis of the similarity indices showed that the small-scaled map had a relatively high proportion of similar soils. Though the taxonomic distances may be used in soil classification studies, we do not recommend them as a measure for pedodiversity on any scale.