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9 - Measuring Connectivity

Methodologies for Assessing Connectivity as a Property of Soils and Landscapes

from Part III - Quantifying Connectivity in Geomorphology

Published online by Cambridge University Press:  10 April 2025

By
Saskia D. Keesstra ,
Artemi Cerdà  and
Richard E. Brazier
Edited by
Ronald Pöppl ,
Anthony Parsons  and
Saskia Keesstra
Ronald Pöppl
Affiliation:
BOKU University Vienna
Anthony Parsons
Affiliation:
University of Sheffield
Saskia Keesstra
Affiliation:
Wageningen Universiteit, The Netherlands
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Summary

Understanding how well critical source areas of water or sediment are connected to receiving surface waters, is an essential step towards improvement of land management. For this, it is important to quantify connectivity beyond the conceptual and proportional evaluation that most studies use connectivity for. Most studies measure only the potential of a landscape to allow connectivity to occur; or the connectivity that occurs at a given moment. This fact shows the two opportunities that will make it possible to monitor connectivity: assess the potential connectivity and the water and sediment fluxes through those landscapes. These components finally may result in the desired knowledge on the connectivity of the research area. In this chapter, we identify three spatial levels of connectivity: soil, hillslopes and catchments. In addition, to be able to measure and monitor connectivity the stocks and flow within every spatial level is introduced to allow for the identification of available techniques to actually assess connectivity at the given scale. The chapter ends with a set of key questions that need answering to make measuring connectivity on different scales reliable and useful.

Keywords

spatial scales of connectivitystocks and flowsmeasurement techniques
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Connectivity in Geomorphology , pp. 193 - 220
Publisher: Cambridge University Press
Print publication year: 2025

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