The experimental use of correspondence analysis to assess the relationship between soils and geomorphology in eastern Zambia

Plant available potassium in New Zealand steep-land pasture soils

“…Dalal-Clayton and Robinson (1993) used the technique to sort groups for reconnaissance soil mapping, and thought that correspondence analysis was a valuable tool for soil science, which has been overlooked. Correspondence analysis is a chi-square based dimension reduction technique that compares the distribution of a group of values with other groups.…”

The Tropics: Environments and Human Impacts Understood and Reinterpreted

“…Ecological expeditions, such as those to Gunong Mulu in Sarawak (Tie et al, 1979) and Volcan Barva, Costa Rica (Grieve et al, 1990) almost always involve an active soil scientist. Much work has examined the relationship between landforms, soils and land capability, and new analytical techniques are still being developed (Dalal-Clayton & Robinson, 1993). However, although soil survey is fundamental to much other work in the environmental sciences and despite the need for a much better understanding of soil-plantwater relationships, the geographical contributions to tropical soil science have largely remained at the mapping, land evaluation and land capability assessment stage.…”