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Showing items 41077 through 41085 of 73380.The sluggish increase in the area productivity of staple crops is a major factor causing increased dependence of African countries on food imports.
Phytoremediation could be a sustainable remediation alternative for conventional remediation technologies. However, its implementation on a commercial scale remains disappointing.
Modern global temperature and land cover and projected future temperatures suggest that tropical forest species will be particularly sensitive to global warming.
Pinyon-juniper (Pinus spp.âJuniperus spp.) encroachment and declining mule deer (Odocoileus hemionus) populations in western Colorado have necessitated management for increased forage.
Knowledge of the spatial distribution of forest types in tropical regions is important for implementation of Reducing Emissions from Deforestation and Forest Degradation (REDD), better understanding of the global carbon cycle, and optimal forest management.
Since the 1930s there has been worldwide concern about the effects and impacts of land degradation. After the problems experienced in the Dust Bowl in the USA, much attention was paid to soil and water conservation in both developed and developing countries.
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