نتایج جستجو برای: land productivity
تعداد نتایج: 198818 فیلتر نتایج به سال:
The globalisation of trade affects land use, food production and environments around the world. In principle, globalisation can maximise productivity and efficiency if competition prompts specialisation on the basis of productive capacity. In reality, however, such specialisation is often constrained by practical or political barriers, including those intended to ensure national or regional foo...
Land degradation is a major concern on matters relating to sustainable agricultural development and long-term food productivity in Africa. Not withstanding other factors, land degradation in most African countries has been driven by disparities in land distribution. This has led to a concentration of people on limited portions of land and the need to address their development needs and issues o...
1 Preliminary and quite incomplete. Please do not cite without permission. helpful comments. INTRODUCTION It has long been hypothesized that the quality of the economic institutions of a society has a fundamental impact on its prospects for economic growth and development. In particular, it is apparent that investment incentives depend upon expectations of rights over the returns to that invest...
The overarching goal of this paper was to espouse methods and protocols for water productivity mapping (WPM) using high spatial resolution Landsat remote sensing data. In a world where land and water for agriculture are becoming increasingly scarce, growing "more crop per drop" (increasing water productivity) becomes crucial for food security of future generations. The study used time-series La...
Plant species richness of permanent grasslands has often been found to be significantly associated with productivity. Concentrations of nutrients in biomass can give further insight into these productivity-plant species richness relationships, e.g. by reflecting land use or soil characteristics. However, the consistency of such relationships across different regions has rarely been taken into a...
Plant species richness of permanent grasslands has often been found to be significantly associated with productivity. Concentrations of nutrients in biomass can give further insight into these productivity-plant species richness relationships, e.g. by reflecting land use or soil characteristics. However, the consistency of such relationships across different regions has rarely been taken into a...
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