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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
321

The adoption of conservation practices by hill farmers, with particular reference to property rights : a case study in northern Thailand

Sathirathai, Suthawan January 1992 (has links)
No description available.
322

Soil Erosion Control after Wildfire

Deneke, Fred 07 1900 (has links)
6 pp.
323

Differential Response of Wind and Water Erosion under Climatic Extremes and Alternate Land Management Practices

Field, Jason Paul January 2009 (has links)
Wind erosion and associated dust emissions play a fundamental role in many ecological processes, yet most ecological studies do not explicitly consider dust-driven processes despite the growing body of evidence suggesting that wind erosion is a key driver of land surface dynamics and many other environmentally relevant processes such as desertification. This study provides explicit support for a pervasive underlying but untested desertification hypothesis by showing that at the vegetation patch scale shrubs are significantly more efficient at capturing wind-blown sediment and other resources such as nutrients than grasses and that this difference is amplified following disturbance. At the landscape scale, the spacing and shape of woody plants were found to be a major determinant of dryland aeolian sediment transport processes in grasslands, shrublands, woodlands and forests, particularly following disturbance. This study also found that disturbance such as fire can have a significant influence on background dust emissions, which can have important consequences for many basic ecological and hydrological processes. Potential interactions between aeolian and fluvial processes were also evaluated in this study, and a new conceptual framework was developed that highlights important differences and similarities between the two processes as a function of scale-dependencies, mean annual precipitation, and disturbance. This study also explicitly evaluates the effect of climatic extremes and alternate land management practices on the absolute and relative magnitudes of wind and water erosion. Notably, results indicate that wet/dry climatic extremes and grazing can increase the wind-to-water erosion ratio, whereas burning disproportionally increases water erosion relative to wind erosion.
324

Soil Erosion Control after Wildfire

DeGomez, Tom 12 1900 (has links)
Revised; Originally Published: 2002 / 6 pp.
325

The ecology and management of upland vegetation in the Wicklow Mountains

Loftus, Mortimer C. P. January 1994 (has links)
No description available.
326

Lake Nasser reservoir sedimentation estimates for various water resources planning alternatives

El-Arabawy, Mohsen Mohamed Mohamed January 2000 (has links)
No description available.
327

An investigation of erosion and deposition of fine cohesive sediments

Shaker, Amjad Hamed January 1996 (has links)
No description available.
328

An investigation into sandy beach stabilisation through controlled drainage

Mulvaney, Heidi Sarah January 2001 (has links)
No description available.
329

Diagenesis related to thrust sheet emplacement : Tellian Atlas, northern Algeria

Messelles, Hadj January 2001 (has links)
No description available.
330

The use of a geographic information system GIS(SPANS) to facilitate detailed evaluation of soil and land

Totolo, Otlogetswe January 1995 (has links)
No description available.

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