Results 221 to 230 of about 9,558 (256)

Evaluation of a surface hydrological connectivity index in agricultural catchments

Environmental Modelling & Software, 2013
Identification 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, P. N. C. Murphy, Philip Jordan, Per-Erik Mellander, M. Kelly-Quinn, M. Cushen, S. Mechan, O. Shine, A. R. Melland   +8 more
openaire   +2 more sources

Agricultural modifications of hydrological flows create ecological surprises

Trends in Ecology & Evolution, 2008
Agricultural 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, Garry D, Peterson, Elena M, Bennett   +2 more
openaire   +2 more sources

Hydrological controls on nutrient concentrations and fluxes in agricultural catchments

Science of The Total Environment, 2002
Like 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, C, Soulsby, I A, Malcolm, A E, Youngson   +3 more
openaire   +2 more sources

Hydrologic and Sediment Transport Modeling of Agricultural Watersheds

Bridging the Gap, 2001
Dealing with flooding, upland soil and streambank erosion, sedimentation, and contamination of water from agricultural, rural, and urban watersheds, and understanding the underlying natural processes are continued challenges to the environmental hydraulics field and in the management of sustainable water and environmental resources around the world ...
Deva K. Borah, Renjie Xia, Maitreyee Bera   +2 more
openaire   +1 more source

Nutrient Transport in an Agricultural Watershed as Affected By Hydrology

2003, Las Vegas, NV July 27-30, 2003, 2003
Physical and chemical properties of nutrients combined with hydrological factors can dramatically affect nitrogen (N) and phosphorus (P) concentrations in and losses with streamflow from agricultural watersheds. In particular, adsorption and/or solubility of the different nutrient forms affect concentrations in subsurface drainage water, surface ...
null J.L. Baker, null M.M. Agua, null P.A. Lawlor, null S.W. Melvin   +3 more
openaire   +1 more source

Hydrologic and water quality impacts of agricultural drainage∗

Critical Reviews in Environmental Science and Technology, 1994
While some of the world's most productive agriculture is on artificially drained soils, drainage is increasingly perceived as a major contributor to detrimental off‐site environmental impacts.
R. W. Skaggs, M. A. Brevé, J. W. Gilliam   +2 more
openaire   +1 more source

New Research Directions in Agricultural Hydrology and Erosion

1989
This paper addresses two rather contrasting areas of research that have developed rapidly during the last 10 years and that promise to have major impact on soil erosion control and agricultural hydrology.
Klaus W. Flach, John M. Laflen
openaire   +1 more source

Decrease in the Water Level of Lake Prespa (North Macedonia) Studied by Remote Sensing Methodology: Relation with Hydrology and Agriculture

Hydrology, 2022
Juan Soria, Naděžda Apostolova
exaly  

The changing hydrology of agriculture

Hydrology for a changing world, 2012
openaire   +1 more source

South Asian agriculture increasingly dependent on meltwater and groundwater

Nature Climate Change, 2022
Hester Biemans, Philippus WESTER, Arun Bhakta Shrestha   +2 more
exaly