Abstract
The concept of landscape sensitivity was introduced into thinking about geomorphological systems by Brunsden and Thornes (1979) and has been developed in the context of environmental change (Thomas and Allison 1993). When resistance to change is exceeded by the magnitude of the disturbing forces the environmental system will adjust to create a new equilibrium. However, that equilibrium will not be attained if the frequency of high magnitude events, sufficient to cause further disturbance, is greater than the ‘relaxation time’ of the system. Some attributes of environmental systems, and equally, some areas of natural landscapes, are more sensitive to change than others. Both the materials (rocks, saprolites, sediments, soils) of the landscape and its morphological components and their arrangement (aspects of slope and landscape pattern) contribute to its sensitivity and when these, mainly landform, characteristics prove stable those parts of the landscape can be said to have a high ‘factor of safety’, a concept borrowed from engineering (Brunsden 1980, 1993; Brunsden and Thornes 1979). Where the landscape has very low resistance to change (high sensitivity) it may said to be ‘fragile’.
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Thomas, M.F. (1998). Landscape Sensitivity in the Humid Tropics — A Geomorphological Appraisal. In: Maloney, B.K. (eds) Human Activities and the Tropical Rainforest. GeoJournal Library, vol 44. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-1800-4_2
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