Results 261 to 270 of about 14,993 (300)
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Hydrology of the Nile and Ancient Agriculture
2017This Chapter includes two main topics; (1) Hydrology of the River Nile and (2) Ancient agriculture in Egypt. The first part comprises general overview of the Nile River, topography of the Nile Basin, precipitation (run off and natural flows), annual flows and flow pattern of the Nile, Pharaohs’ water management systems, and irrigation canal systems and
M. N. Noaman, D. El Quosy
exaly +2 more sources
South Asian agriculture increasingly dependent on meltwater and groundwater [PDF]
Irrigated agriculture in South Asia depends on meltwater, monsoon rains and groundwater. Climate change alters the hydrology and causes shifts in the timing, composition and magnitude of these sources of water supply.
Arthur Lutz +2 more
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Agriculture, hydrology and water quality
"This book is a collection of reviews on the global problems of diffuse water pollution from agriculture, which affects the water quality of rivers, lakes, reservoirs and the oceans. It has been broken down into three parts. The first considers potential
Haygarth, P. M.
core +3 more sources
Agriculture, Hydrology and Water Quality
Journal of Environmental Quality, 2003exaly +2 more sources
Coupling of Agricultural Economic and Hydrological Models
German Journal of Agricultural Economics, 2003The objective of the paper is to show the potential of interdisciplinary model networks consisting of agricultural economic and natural science models performing integrated impact assessments of agri-environmental policies. The potentials are exemplified using a coupling of the agricultural sector model RAUMIS with the hydrological models GROWA98 and ...
Horst Gömann +3 more
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The hydrologic behavior of agricultural watersheds
Eos, Transactions American Geophysical Union, 1944During the past decade there has been much discussion, pro and con, with regard to the effects of agricultural operations upon the amount and regimen of runoff from watersheds. The problem becomes highly involved on large watersheds, because they are made up of various complexes of soil, cover, topography, and other edaphic features.
openaire +1 more source
Evaluation of a surface hydrological connectivity index in agricultural catchments
Environmental Modelling & Software, 2013Identification of surface hydrological connectivity at scales where critical source areas (CSAs) can be managed is fundamental to achieving effective management of phosphorus loss in agricultural catchments. This study investigated the potential for the 'Network Index' (NI) to predict surface connectivity at CSA-management scales in contrasting ...
Mairead Shore +8 more
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Hydrological controls on nutrient concentrations and fluxes in agricultural catchments
Science of The Total Environment, 2002Like many streams draining intensively farmed parts of lowland Scotland, water quality in the Newmills burn, Aberdeenshire, is characterized by relatively high nutrient levels; mean concentrations of NO3-N and NH3-N are 6.09 mg l(-1) and 0.28 mg l(-1), respectively, whilst average PO4-P concentrations reach 0.06 mg l(-1).
J, Petry +3 more
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Agricultural modifications of hydrological flows create ecological surprises
Trends in Ecology & Evolution, 2008Agricultural expansion and intensification have altered the quantity and quality of global water flows. Research suggests that these changes have increased the risk of catastrophic ecosystem regime shifts. We identify and review evidence for agriculture-related regime shifts in three parts of the hydrological cycle: interactions between agriculture and
Line J, Gordon +2 more
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