IN SITU SOIL FLUSHING - STUDIES ON REMEDIATION EFFICIENCY OF POLLUTED SANDY SOILS WITH ORGANIC ACIDS

2012 ◽  
Vol 11 (12) ◽  
pp. 2163-2168
Author(s):  
Alexandra-Dana Chitimus ◽  
Valentin Nedeff ◽  
Emilian Florin Mosnegutu ◽  
Mirela Panainte
Keyword(s):  
Organic Acids ◽  
Sandy Soils ◽  
Soil Flushing ◽  
Remediation Efficiency

Root Exudation of Organic Acids of Herbaceous Pioneer Plants and Their Growth in Sterile and Non-Sterile Nutrient-Poor, Sandy Soils from Post-Mining Sites

Pedosphere ◽  
2019 ◽  
Vol 29 (1) ◽  
pp. 34-44 ◽  
Author(s):  
Katja BOLDT-BURISCH ◽  
Bernd Uwe SCHNEIDER ◽  
M. Anne NAETH ◽  
Reinhard F. HÜTTL
Keyword(s):  
Organic Acids ◽  
Root Exudation ◽  
Sandy Soils ◽  
Mining Sites ◽  
Pioneer Plants

In situ soil flushing to remediate confined soil contaminated with PFOS- an innovative solution for emerging environmental issue

Chemosphere ◽  
2021 ◽  
Vol 262 ◽  
pp. 127606 ◽  
Author(s):  
S.T.M.L.D. Senevirathna ◽  
Reza Mahinroosta ◽  
Miao Li ◽  
Karthika KrishnaPillai
Keyword(s):  
Environmental Issue ◽  
Soil Flushing ◽  
Innovative Solution

scholarly journals Physical Crust Formation on Sandy Soils and Their Potential to Reduce Dust Emissions from Croplands

Land ◽  
2020 ◽  
Vol 9 (12) ◽  
pp. 503
Author(s):  
Heleen Vos ◽  
Wolfgang Fister ◽  
Frank Eckardt ◽  
Anthony Palmer ◽  
Nikolaus Kuhn
Keyword(s):  
Wind Erosion ◽  
Sandy Soils ◽  
Soil Surface ◽  
Free State ◽  
Cone Penetrometer ◽  
Crust Formation ◽  
Dust Emissions ◽  
Dust Flux ◽  
Dust Sources

The sandy croplands in the Free State have been identified as one of the main dust sources in South Africa. The aim of this study was to investigate the occurrence and strength of physical soil crusts on cropland soils in the Free State, to identify the rainfall required to form a stable crust, and to test their impact on dust emissions. Crust strength was measured using a fall cone penetrometer and a torvane, while laboratory rainfall simulations were used to form experimental crusts. Dust emissions were measured with a Portable In-Situ Wind Erosion Laboratory (PI-SWERL). The laboratory rainfall simulations showed that stable crusts could be formed by 15 mm of rainfall. The PI-SWERL experiments illustrated that the PM10 emission flux of such crusts is between 0.14% and 0.26% of that of a non-crusted Luvisol and Arenosol, respectively. The presence of abraders on the crust can increase the emissions up to 4% and 8% of the non-crusted dust flux. Overall, our study shows that crusts in the field are potentially strong enough to protect the soil surfaces against wind erosion during a phase of the cropping cycle when the soil surface is not protected by plants.

scholarly journals Modified micro suction cup/rhizobox approach for the in-situ detection of organic acids in rhizosphere soil solution

2006 ◽  
Vol 286 (1-2) ◽  
pp. 99-107 ◽  
Author(s):  
Jacynthe Dessureault-Rompré ◽  
Bernd Nowack ◽  
Rainer Schulin ◽  
Jörg Luster
Keyword(s):  
Organic Acids ◽  
Soil Solution ◽  
Rhizosphere Soil ◽  
Suction Cup ◽  
In Situ Detection

Sand grain mineralogy and morphology under forest and grassland/arable fields in Eastern Hungary

2014 ◽  
Vol 63 (1) ◽  
pp. 29-38 ◽  
Author(s):  
Kitti Balog ◽  
L. Kuti ◽  
A. Szabó ◽  
T. Tóth
Keyword(s):  
Arable Land ◽  
Soil Layer ◽  
Size Fraction ◽  
Sandy Soils ◽  
Short Term ◽  
Etch Pits ◽  
Arable Fields ◽  
And Control ◽  
Hungarian Plain

Related to ongoing (re)forestation in the Great Hungarian Plain the short-term influence of changing land cover was studied on the grains of skeletal sandy soils. In three sampling areas with forest and grassy/arable control plots, the 0.1–0.2 mm grain size fraction of samples taken every 20 cm from the 0–100 cm sandy soil layer (totalling 22,509 grains) were separated and described with optical mineralogical microscope. In order to distinguish sand grains of forest-covered and control areas (grassland/arable land), the results of mineralogical and morphological observations were compared. It was revealed that the amount of feldspar grains is 8–9 times less than the amount of the quartz ones. The increase in the quartz/feldspar (q/fp) ratio is tied to the “consumption” of feldspars: the intense consumption of potassium by trees. Under the forest-covered fields, the number of in-situ crushed grains increased. Grains with etch pits are frequent in samples from the grasslands (except in Hajdúsámson). In samples of forest-covered areas a greatly increased number of brown grains with limonite and/or humus films were observed. The gained results can be useful in proving earlier land use in forested fields.

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