Walter G. Whitford – författare
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6 produkter
Ecology of Desert Systems
E-bok, 2002
1302 kr
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Conventional wisdom considers deserts stark, harsh regions that support few living things. Most people also believe that water alone makes the desert bloom. Ecology of Desert Systems challenges these conventional views. This volume explores a broad range of topics of interest to ecosystem, …
Ecology of Desert Systems
Av Benjamin D. Duval, Walter G. Whitford
E-bok, 2019
2054 kr
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Nearly one-third of the land area on our planet is classified as arid or desert. Therefore, an understanding of the dynamics of such arid ecosystems is essential to managing those systems in a way that sustains human populations. This second edition of Ecology of Desert Systems provides a clear, …
Ecology of Desert Systems
Av Walter G. Whitford, Benjamin D. Duval
Häftad, 2019
1444 kr
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Nearly one-third of the land area on our planet is classified as arid or desert. Therefore, an understanding of the dynamics of such arid ecosystems is essential to managing those systems in a way that sustains human populations. This second edition of Ecology of Desert Systems provides a clear, …
Monitoring Ecological Condition in the Western United States
Av Shabeg S. Sandhu, Brian D. Melzian m. fl.
Inbunden, 2000
1096 kr
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This volume is the proceedings of a symposium held on April 6-8, 1999, in San Francisco, California, USA, and sponsored by the US Environmental Protection Agency's (EPA) Environmental Monitoring and Assessment Program (EMAP). EMAP is the primary program of the EPA's Office of Research and …
Monitoring Ecological Condition in the Western United States
Av Shabeg S. Sandhu, Brian D. Melzian m. fl.
Häftad, 2012
1096 kr
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The monitoring of point sources by the Environmental Protection Agency (EPA), the states, and the tribes has documented and helped reduce the levels of chemical stressors affecting our ecosystems. With the controls on point sources reducing chemical contamination, new environmental challenges …
Monitoring Ecological Condition in the Western United States
Av Barbara T. Walton, Walter G. Whitford m. fl.
E-bok, 2012
1459 kr
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The monitoring of point sources by the Environmental Protection Agency (EPA), the states, and the tribes has documented and helped reduce the levels of chemical stressors affecting our ecosystems. With the controls on point sources reducing chemical contamination, new environmental challenges …
