Conservation of Fresh Water Resources: Natural And Other Concepts

Conservation and Enhancement of Natural Resources

Meeting food and livelihood security needs in developing countries will require the conservation and enhancement of natural resources that contribute to agricultural production. Chief among the resources to be sustainably managed are soils and forests. Failure to protect and improve soils will lead to dramatic decreases in domestic agricultural production and consequent dependence on imported f...

Natural Radioactivity of Drinking Water Resources in Arak, Iran

The activity concentrations of 235U, 232Th, 226Ra, 40K and 137Cs in ground and surface of drinking water resources in Iranian city of Arak were determined by gamma ray spectrometry with aHPGe detector setup, coaxial p type and 8192 channels MCA. The water samples differed in radioactivity content depending on their origin and place. In the ...

Tourism And Natural Resources

Adaptive Management of Natural Resources: Theory, Concepts, and Management Institutions

Stankey, George H.; Clark, Roger N.; Bormann, Bernard T. 2005. Adaptive management of natural resources: theory, concepts, and management institutions. Gen. Tech. Rep. PNW-GTR-654. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 73 p. This report reviews the extensive and growing literature on the concept and application of adaptive management. ...

Minimal time bioremediation of natural water resources

We study minimal time strategies for the treatment of pollution of large volumes, such as lakes or natural reservoirs, with the help of an autonomous bioreactor. The control consists in feeding the bioreactor from the resource, the clean output returning to the resource with the same flow rate. We first characterize the optimal policies among constant and feedback controls, under the assumption...