Results 21 to 30 of about 23,158 (220)

Why productive lakes are larger mercury sedimentary sinks than oligotrophic brown water lakes

Limnology and Oceanography, Volume 66, Issue 4, Page 1316-1332, April 2021., 2021
Abstract Mercury accumulation in lake sediments is a widespread environmental problem due to the biomagnification of Hg in the aquatic food chain. Soil Hg concentrations, catchment vegetation, erosion, and lake productivity are major factors controlling the accumulation of Hg in lakes.
Martin Schütze, Philipp Gatz, Benjamin‐Silas Gilfedder, Harald Biester   +3 more
wiley   +1 more source

Forest regeneration can positively contribute to local hydrological ecosystem services: Implications for forest landscape restoration

Journal of Applied Ecology, Volume 58, Issue 4, Page 755-765, April 2021., 2021
Encouraging natural regeneration is increasingly seen as a cost‐effective way to deliver forest landscape restoration. Our data suggest that increasing the abundance of young secondary forest in the tropics, by increasing fallow lengths in the shifting cultivation cycle, could make a positive contribution to locally important hydrological ecosystem ...
H. J. (Ilja) van Meerveld, Julia P. G. Jones, Chandra P. Ghimire, Bob W. Zwartendijk, Jaona Lahitiana, Maafaka Ravelona, Mark Mulligan, Luke Flory   +7 more
wiley   +1 more source

Red‐coated rocks on the seashore: The esthetics and geology of prehistoric rock art in Alta, Arctic Norway

Geoarchaeology, Volume 36, Issue 2, Page 314-334, March/April 2021., 2021
Abstract Research suggests that the World Heritage rock engravings in Alta, Northern Norway, were made along the seashore over a period of 5000 years. The postglacial rebound and consequent land uplift have caused a continuous displacement of the shoreline, now situating the earliest rock art panels up to 26 m above sea level.
Karin Tansem, Per Storemyr
wiley   +1 more source

Referate

Meteorologische Zeitschrift, 1997
Baumgartner, A. und Liebscher, H.-J.: Allgemeine Hydrologie - Quantitative Hydrologie. - Gebr. Borntraeger, Berlin, Stuttgart, 1996.
Karl-Gerd Richter
doaj   +1 more source

Abflussregimeforschung und ihre praktische Bedeutung [PDF]

Geographica Helvetica
The almost classic investigation of runoff regimes has been intensified in the last few years. It is a very significant part of hydrological research.
C. Leibundgut, R. Weingartner, H. Aschwanden   +2 more
doaj   +1 more source

Effect of Deformation Delayed of the Concrete on the Seismic Response of Shear Walls Strengthened by Composites with a Sinusoidal Distribution of Fibers

MATEC Web of Conferences, 2014
The present paper deals with the effect of deformation delayed creep and shrinkage of the concrete on the seismic response of shear walls reinforced concrete strengthened with composite materials having a sinusoidal distribution of fibers.
Yeghnem R., Boulefrakh L., Meftah S.A., Tounsi A., Adda Bedia E.A.   +4 more
doaj   +1 more source

Oser le génie végétal en rivière de montagne – Retour d'expérience sur les ouvrages Géni'Alp [PDF]

Sciences, Eaux & Territoires, 2017
Encore peu utilisées sur les cours d'eau dynamiques comme les rivières de montagne, les techniques de génie végétal représentent pourtant une solution écologique et économique pour la protection des berges.
EVETTE, André, FROSSARD, Pierre-André, VALÉ, Nicolas, LEBLOIS, Solange, LEBLOIS, Solange   +4 more
doaj   +3 more sources

Buckling analysis of laminated composites plates on an elastic foundation using a new higher order theory

MATEC Web of Conferences, 2014
buckling analysis of symmetric and antisymmetric laminated composites plates on an elastic foundation is examined by a new hyperbolic displacement model.
Benselama Khadidja, El Meiche Noureddine, Adda Bedia El Abbès   +2 more
doaj   +1 more source

Application of an electronic analog computer to the evaluation of the effects of urbanization on the runoff characteristics of small watersheds [PDF]

, 1968
In the synthesis of hydrograph characteristics of small urban watersheds, the distribution of the water among the various phases of the runoff process is attempted by the concept of "Equivalent Rural Watershed".
Narayana, V.V.D., Riley, J.P.
core   +1 more source

Buckling of Functionally Graded Nanobeams Based on the Nonlocal New First-Order Shear Deformation Beam Theory

MATEC Web of Conferences, 2014
In this work, the size-dependent buckling behavior of functionally graded (FG) nanobeams is investigated on the basis of the nonlocal continuum model.
Houari M.S.A., Bousahla A.A., Bessaim A., Adda Bedia E.A., Tounsi A.   +4 more
doaj   +1 more source