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  • Watershed degradation - Use of thermal data and vegetation indices as indicators of environmental changes - Hydrological implications of changes in land surface cover


Among natural resources supporting human needs and economic development, water is obviously of special importance, both in terms of quantity and quality. This is particularly true in the developing countries as there are limited amounts of rainfall in most of the areas between the tropics, high population growth and migrations, and a lack of financial resources for water management. Vegetation cover is by far the most important factor controlling the transformation between potential and actual water resources. Any changes affecting the surface characteristics of the environment, due to natural or anthropomorphic reasons, will have direct consequences on the water resources effectively usable by human activity and economic development. Thus, any water resource management plan must take into account changes in the surface characteristics of the geographical domain receiving precipitation.

Additional information

Authors: GREGOIRE J-M, JRC Ispra (IT)
Bibliographic Reference: Paper presented: Remote Sensing and Geographical Information Systems for Resource Management in Developing Countries, Ispra (IT), May 14-15, 1990
Availability: Available from (1) as Paper EN 36524 ORA
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