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Showing items 41149 through 41157 of 73380.This work presents methods where monthly based climate data are used to estimate reference evapotranspiration (ET(0)).
The need for new sources of renewable energies and the rising price of fossil fuels have induced the hope that agricultural crops may be a source of renewable energy for the future. We question in this paper the best strategies to convert solar radiation into both energy and food.
A confluence of factors has shaped the composition and structure of vegetation on rangelands in the American West. These factors include climate, soils, topography, history of grazing and fire (both wildfire and prescribed fire) as well as legacy effects from prior land management practices.
By focusing on Guangzhou, this paper examines how different concepts of city in terms of urban-rural relationships are shaped in transforming China since 1949, and explores how they influence the way in which urban planning are practiced.
This study used a unique 2003 survey dataset to analyse the developments in land use and exchange in Bulgaria. The survey analysis yields several results. Land is highly fragmented in Bulgaria which increases the need for an efficient exchange of land between owners and users of land.
Cichorieae, one of the six tribes of the sub-family Cichorioideae (Asteraceae), produces a well-recognisable fenestrate pollen type. In the Mediterranean area, the significance of high percentages of Cichorieae pollen from archaeological layers is still questioned.
Agriculture is the mainstay of the Kenyan Economy. However, agriculture has experienced low productivity over the years. Poor access to agricultural finance has been identified as a contributing factor to low crop productivity.
Resilience is the magnitude of disturbance that can be tolerated before a socioecological system (SES) moves to a different region of state space controlled by a different set of processes.
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