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Updated: Sep 29, 2026

Semi-Automated Method for Mapping and Classifying Boreal Coastal Wetland Plant Communities using Drone and Ground Data
Published on: June 22, 2026
Abstract:
A systems approach is applied to the study of migration trends in Finland for the period 1971-1981, with particular attention to the period 1971-1978. The results indicate the existence of six permanent migration regions linked by a multilevel system. "The organization of this system varies from one part of the country to another, the most common modes being hierarchical tree flow networks belonging to a nodal system and polar and dendritic networks associated with a highly polarized system. The nodal system mode is seen to be increasing in currency."
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