Preferential flow and metal distribution in a contaminated alluvial soil from São Domingos mine (Portugal)

Geoderma ◽  
2014 ◽  
Vol 213 ◽  
pp. 103-114 ◽  
Author(s):  
F. Garrido ◽  
S. Serrano ◽  
L. Barrios ◽  
J. Uruñuela ◽  
M. Helmhart
Keyword(s):  
Preferential Flow ◽  
Alluvial Soil ◽  
Metal Distribution ◽  
São Domingos Mine

Preferential flow and the generation of runoff: 2. Boundary-layer flow theory

1990 ◽  
Vol 26 (12) ◽  
pp. 3055-3063 ◽  
Author(s):  
Peter F. Germann
Keyword(s):  
Boundary Layer ◽  
Boundary Layer Flow ◽  
Preferential Flow ◽  
Flow Theory ◽  
Layer Flow

Cancer and Alluvial Soil

1883 ◽  
Vol 15 (373supp) ◽  
pp. 5954-5954
Keyword(s):  
Alluvial Soil

Effects of Straw Mulching and Little- or Zero-tillage on Microbial Diversity and Biomass C and N of Alluvial Soil in Chengdu Plain, China*

2012 ◽  
Vol 17 (2) ◽  
pp. 158-161
Author(s):  
Dinghui LIU ◽  
Li SHU ◽  
Qiang CHEN ◽  
Shanghong CHEN ◽  
Honglin CHEN ◽  
...  
Keyword(s):  
Microbial Diversity ◽  
Alluvial Soil ◽  
Zero Tillage ◽  
Straw Mulching ◽  
Chengdu Plain ◽  
C And N

Sensitivity and First-Step Uncertainty Analyses for the Preferential Flow Model MACRO

2002 ◽  
Vol 31 (1) ◽  
pp. 227 ◽  
Author(s):  
Igor G. Dubus ◽  
Colin D. Brown
Keyword(s):  
Preferential Flow ◽  
Flow Model ◽  
Uncertainty Analyses

Visualizing Preferential Flow Paths using Ammonium Carbonate and a pH Indicator

2002 ◽  
Vol 66 (2) ◽  
pp. 347 ◽  
Author(s):  
Zhi Wang ◽  
Jianhang Lu ◽  
Laosheng Wu ◽  
Thomas Harter ◽  
William A. Jury
Keyword(s):  
Preferential Flow ◽  
Ammonium Carbonate ◽  
Ph Indicator ◽  
Flow Paths ◽  
Preferential Flow Paths

Equation for Describing Solute Transport in Field Soils with Preferential Flow Paths

2005 ◽  
Vol 69 (2) ◽  
pp. 291-300 ◽  
Author(s):  
Young-Jin Kim ◽  
Christophe J. G. Darnault ◽  
Nathan O. Bailey ◽  
J.-Yves Parlange ◽  
Tammo S. Steenhuis
Keyword(s):  
Solute Transport ◽  
Preferential Flow ◽  
Flow Paths ◽  
Preferential Flow Paths ◽  
Field Soils

Investigations on the Heavy Metal Distribution in the Turbidity Zone of the River Elbe Estuary (F.R.G.)

1986 ◽  
Vol 18 (4-5) ◽  
pp. 345-345
Author(s):  
F. Schroeder ◽  
R.-D. Wilken
Keyword(s):  
Heavy Metal ◽  
Metal Distribution ◽  
Elbe Estuary ◽  
Heavy Metal Distribution ◽  
River Elbe

Regeneration dynamics in an alluvial dense ash (Fraxinus excelsior L.) stand

2001 ◽  
Vol 66 ◽  
Author(s):  
M. Tabari ◽  
N. Lust ◽  
L. Nachtergale
Keyword(s):  
Alluvial Soil ◽  
Single Species ◽  
Fraxinus Excelsior ◽  
Growth Stages ◽  
Acer Pseudoplatanus ◽  
Development Stages ◽  
Regeneration Dynamics ◽  
Broadleaved Tree Species ◽  
Succession Process ◽  
Broadleaved Tree

Broadleaves  regeneration dynamics and the succession mechanism were studied within  a    transect of 14 m x 56 m in a dense 80-year-old ash stand situated on an  alluvial soil. For this    purpose, abundance and height of all naturally regenerated species at  different development    stages were analyzed and their distribution over the juvenile and older  growth stages    determined.    The study reveals that from the main broadleaved tree species, Quercus robur and Fagus    sylvatica regeneration scarcely occur at any  growth stages. No Fraxinus excelsior regeneration,    except 1 unit, taller than sapling (1.5-4 m) can be found on this soil  type. On the contrary, Acer    pseudoplatanus represents different development  stages (seedling, sapling, thicket, small pole    and large pole) and in stand patches where an understorey is practically  lacking, its    regeneration is well developed. Results generally show that at the juvenile  and older growth    stages Acer proceeds Fraxinus and regeneration is largely  dominated by the invasive Acer. It is    expected that this succession process will continue and that Acer will overcome in the    overstorey and even gradually form an almost single-species dominating  stage. Direct    interventions are unavoidable in order to regulate the primary mixture  patterns.

scholarly journals Transboundary geophysical mapping of geological elements and salinity distribution critical for the assessment of future sea water intrusion in response to sea level rise

2012 ◽  
Vol 16 (7) ◽  
pp. 1845-1862 ◽  
Author(s):  
F. Jørgensen ◽  
W. Scheer ◽  
S. Thomsen ◽  
T. O. Sonnenborg ◽  
K. Hinsby ◽  
...  
Keyword(s):  
Groundwater Flow ◽  
Sea Level Rise ◽  
Sea Level ◽  
Preferential Flow ◽  
Sea Water ◽  
Saline Water ◽  
Seismic Survey ◽  
Salinity Distribution ◽  
Geological Structures ◽  
The North

Abstract. Geophysical techniques are increasingly being used as tools for characterising the subsurface, and they are generally required to develop subsurface models that properly delineate the distribution of aquifers and aquitards, salt/freshwater interfaces, and geological structures that affect groundwater flow. In a study area covering 730 km2 across the border between Germany and Denmark, a combination of an airborne electromagnetic survey (performed with the SkyTEM system), a high-resolution seismic survey and borehole logging has been used in an integrated mapping of important geological, physical and chemical features of the subsurface. The spacing between flight lines is 200–250 m which gives a total of about 3200 line km. About 38 km of seismic lines have been collected. Faults bordering a graben structure, buried tunnel valleys, glaciotectonic thrust complexes, marine clay units, and sand aquifers are all examples of geological structures mapped by the geophysical data that control groundwater flow and to some extent hydrochemistry. Additionally, the data provide an excellent picture of the salinity distribution in the area and thus provide important information on the salt/freshwater boundary and the chemical status of groundwater. Although the westernmost part of the study area along the North Sea coast is saturated with saline water and the TEM data therefore are strongly influenced by the increased electrical conductivity there, buried valleys and other geological elements are still revealed. The mapped salinity distribution indicates preferential flow paths through and along specific geological structures within the area. The effects of a future sea level rise on the groundwater system and groundwater chemistry are discussed with special emphasis on the importance of knowing the existence, distribution and geometry of the mapped geological elements, and their control on the groundwater salinity distribution is assessed.

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