Results 101 to 110 of about 281,792 (338)

Boron availability and fertilizer response of maize in soils from sub‐Saharan Africa

Journal of Plant Nutrition and Soil Science, EarlyView.
Abstract Background and aims Low boron (B) availability is associated with strongly weathered, coarse‐textured, and low organic matter soils, widespread in sub‐Saharan Africa (SSA). It is unknown to what extent B fertilization can increase maize yields in SSA.
Mirjam S. Breure, Elise Van Eynde, Samuel Njoroge, Regis Chikowo, Rob N. J. Comans, Ellis Hoffland   +5 more
wiley   +1 more source

Prediction of cement infiltration depth in coarse-grained soil

KSCE Journal of Civil Engineering, 2013
During construction of underground structure, cement slurry can be infiltrated into a coarse-grained soil and forms a cement infiltrated zone. This zone may serve as a part of structural element when the strength of this zone increases significantly.
Hyung-Keun Park, Young Cheol Chang
openaire   +1 more source

Field Studies on the Influence of High‐Voltage Direct Transmission Underground Cables on Soils Along the SuedLink Route in Southwest Germany

Journal of Plant Nutrition and Soil Science, EarlyView.
During regular operation of the SuedLink at a load ≤75 %, the average increase in temperature in the plowing horizon is expected to be less than 1.6°C in the soils along the route in Southwest Germany. ABSTRACT Background The SuedLink was planned as a high‐voltage direct‐current underground cable route. The construction itself is a massive intervention
Joachim Ingwersen, Alexander Schade, Andreas Lehmann, Jonas Trenz, Maja Schreiber, Christoph Drefke, Harald Schramm, Christian Bidlingmaier, Simone Graeff‐Hönninger, Thilo Streck, Karl Wieland   +10 more
wiley   +1 more source

Biomass Carbon in Harvest Residues of Winter Oilseed Rape Across Fertilizer N Rates: Implications for Carbon Input Estimations in Soil Carbon Models

Journal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Background: Reliable estimation of carbon (C) inputs from above‐ and belowground residues at different yield levels is crucial, as these inputs drive soil organic carbon (SOC) models for C accounting. Aims: This study quantifies C inputs from different components of winter oilseed rape (WOSR) and compares them with estimates from various ...
Ozan Ozkiper, Iris Vogeler, Lars J. Munkholm, Jørgen Eriksen, Johannes L. Jensen   +4 more
wiley   +1 more source

Dust Devil Tracks [PDF]

, 2016
Dust devils that leave dark- or light-toned tracks are common on Mars and they can also be found on the Earth’s surface. Dust devil tracks (hereinafter DDTs) are ephemeral surface features with mostly sub-annual lifetimes.
A. Spiga, A. Wegener, A.F. Vaughan, A.P. Rossi, A.S. McEwen, A.S. Yen, A.V. Pathare, Angelo Pio Rossi, B. Hapke, B. Hapke, B.A. Cantor, C. Holstein-Rathlou, C. Sagan, C. Sagan, C. Sagan, C. Stanzel, C.A. Verba, C.L.L. Hendriks, D. Crisp, D. Reiss, D. Reiss, D. Reiss, D. Reiss, D. Reiss, D. Reiss, D. Reiss, D. Reiss, D. Reiss, D. Reiss, D. Reiss, D. Reiss, D. Reiss, D.C. Lewellen, D.C. Lewellen, D.C. Lewellen, D.C. Lewellen, D.C. Lewellen, D.E. Fitzjarrald, D.S. Choi, Dennis Reiss, E. Wells, E.L. Tassel Van, F.J. Calef, F.M. Neubauer, G.A. Landis, G.E. Cushing, J. Ormö, J. Veverka, J. Veverka, J.A. Berger, J.A. Cutts, J.A. Fisher, J.A. Grant, J.A. Ryan, J.A. Ryan, J.A. Ryan, J.B. Pollack, J.D. Iversen, J.F. Kok, J.J. Carroll, J.T. Snow, K.A. Bennett, K.E. Herkenhoff, K.E. Herkenhoff, K.E. Herkenhoff, K.S. Edgett, L. Bandeira, L. Fenton, L. Ojha, L.D.V. Neakrase, L.D.V. Neakrase, L.J. Maher, L.K. Fenton, L.K. Fenton, L.K. Fenton, Lori Fenton, Lynn Neakrase, M. Balme, M. Klose, M. Tomasko, M.A. Kahre, M.A. Szwast, M.C. Malin, M.D. Smith, M.I. Zimmerman, M.J. Wolff, M.P. Hoffer, M.R. Balme, M.R. Balme, M.T. Lemmon, M.T. Mellon, Matthew Balme, Michael Zimmerman, N. Otsu, N. Schorghofer, N.B. Drake, N.E. Prosser, N.E. Putzig, N.O. Rennó, N.T. Bridges, N.T. Bridges, P. Thomas, P. Thomas, P.C. Sinclair, P.C. Sinclair, P.E. Geissler, P.E. Geissler, P.E. Geissler, P.E. Geissler, P.J. Gierasch, P.K. Haff, P.L. Whelley, P.L. Whelley, P.R. Christensen, P.R. Christensen, Patrick Whelley, R. Greeley, R. Greeley, R. Greeley, R. Greeley, R. Greeley, R. Greeley, R. Greeley, R. Hesse, R. Rieder, R. Sullivan, R. Sullivan, R.D. Lorenz, R.D. Lorenz, R.D. Lorenz, R.D. Lorenz, R.D. Lorenz, R.D. Lorenz, R.D. Lorenz, R.D. Lorenz, R.J. Zomer, R.M. Haberle, R.N. Clark, R.P. Davies-Jones, R.W. Zurek, S. Rafkin, S. Silvestro, S.M. Metzger, S.W. Ruff, T. Statella, T. Statella, T. Statella, T. Statella, T. Statella, T.I. Michaels, T.T. Fujita, T.T. Fujita, Thiago Statella, W. Goetz, W.D. Crozier, W.D. Flower, W.J. Markiewicz   +156 more
core   +1 more source

Influence of non-uniform distribution of fine soil on mechanical properties of coarse-grained soil

Yantu gongcheng xuebao, 2017
In order to study the influence of non-uniform distribution of fine soil on mechanical properties of coarse-grained soil under freeze-thaw cycles, triaxial shear tests are conducted on different specimens with different distributions of fine soil ...
LIU Jian-kun , YU Qian-mi , LIU Jing-yu , WANG Dong-yong
doaj   +1 more source

In situ mixing of organic matter decreases hydraulic conductivity of denitrification walls in sand aquifers [PDF]

, 2008
In a previous study, a denitrification wall was constructed in a sand aquifer using sawdust as the carbon substrate. Ground water bypassed around this sawdust wall due to reduced hydraulic conductivity.
Barkle, Gregory F., Burgess, Craig P., Painter, Brett D.M., Schipper, Louis A.   +3 more
core   +2 more sources

Mechanical behavior of coarse-grained soils reference

, 2007
The study of coarse-grained soils mechanical behavior serves an important purpose given the frequency with which such soils are encountered within the scope of civil engineering works. These materials are characterized by a very flat particle size distribution.
Dupla, Jean Claude, Pedro, Luc Sedji, Canou, Jean, Dormieux, Luc   +3 more
openaire   +1 more source

"Two tribes": Handaxe shape variation shows distinct regional cultural groups in southeastern Britain between 424 000 and 374 000 BP

Journal of Quaternary Science, EarlyView.
ABSTRACT This paper examines regional and chronological variations in Acheulean handaxe morphology during Marine Isotope Stage 11 (c. 425–365 ka BP) in Britain. Using a data set of 737 handaxes from 13 securely dated sites in East Anglia and the Thames Valley, we apply three‐dimensional geometric morphometric analysis to examine morphological ...
Mark White, Frederick Foulds, Aaron Rawlinson, Ceri Shipton, Rob Davis, Nick Ashton   +5 more
wiley   +1 more source

Reconstructing the Holocene explosive eruptive history of the Erciyes volcano (Turkey) using proximal and distal tephra records

Journal of Quaternary Science, EarlyView.
ABSTRACT Mount Erciyes, the largest active volcano of Central Anatolia (Turkey), erupted explosively during the Holocene, producing the Karagüllü, Perikartin and Dikkartin tuff rings. Even though major cities like Kayseri and its ~1 million residents sit directly on these pyroclastic deposits, the timing and magnitude of the explosive eruptions have ...
Ivan Sunyé‐Puchol, Rengin Özsoy‐Ünal, Xavier Bolós, Victoria C. Smith, Efe Akkas, Lorenzo Tavazzani, Jan Aymerich, Manuela Nazzari, Pierre Lacan, Victoria Cullen, Olivier Bachmann, Piergiorgio Scarlato, Silvio Mollo   +12 more
wiley   +1 more source