نتایج جستجو برای: alluvial soils

تعداد نتایج: 51765  

2014
Joël Amossé Roxane Kohler-Milleret Jean-Michel Gobat Renée-Claire Le Bayon

chlorotica Aporrectodea rosea X-ray tomography Burrow networks Microcosms Earthworms are considered as key actors of soil processes at different spatial and temporal scales and provide essential ecosystem services linked to climate regulation or primary production. However, little is known about their basic functional roles (e.g. organic matter decomposition, soil structuring processes) in pert...

Journal: :Journal of the Faculty of Agriculture, Kyushu University 1956

Journal: :Journal of the Faculty of Agriculture, Kyushu University 1956

Journal: :Chemosphere 2003
S Rémy P Prudent C Hissler J L Probst G Krempp

River bottom sediments and soils were collected from the industrialized Thur River basin (north-eastern France) to assess mercury contamination. The regional geochemical background level of total mercury was evaluated to calculate mercury contamination factors (Fc) in soils and river bottom sediments. Our estimate of the mean background mercury levels in river sediments and soils, not affected ...

Journal: :مرتع و آبخیزداری 0
امید بیات گروه خاک شناسی دانشگاه صنعتی اصفهان حمیدرضا کریم زاده استادیار مرتع و ابخیزداری/ دانشکده مهندسی منابع طبیعی/ دانشگاه صنعتی اصفهان مصطفی کریمیان اقبال دانشیار خاکشناسی/ دانشگاه تربیت مدرس حسین خادمی گروه خاکشناسی/ دانشگاه صنعتی اصفهان

despite of suitable geological and climatic conditions for forming and evolution of alluvial fans and importance of this landform as soil and water resources in arid regions, there are limited studies about this landform in iran. in the present study, evolution and pedogenic development of geomorphic surfaces of an alluvial fan in eastern isfahan were studied by using remote sensing, field and ...

ژورنال: علوم آب و خاک 2010
ایوبی, شمس‌الله , خرمالی, فرهاد , قرقره‌چی, شادی ,

Gypsum is the most common sulfate mineral in soils of arid and semi-arid regions. Two hundred million hectares of the earth’s surface and about 28 million hectares of Iranian arid soils are covered by gypsiferous soils. The studied soils consist of alluvial plane and eolian plains in northern Iran. Soils were classified as Haplocambids, Aquisalids and Endoaquepts. In this study, genesis, format...

Journal: :آب و خاک 0
محمد قاسم زاده گنجه ای علیرضا کریمی کارویه علی زین الدینی رضا خراسانی

introduction: playa is one of the most important landscapes in arid regions which covers about 1% of the world's total land area. study of playas is important from different points of view especially pedology, sedimentology, mineralogy, environmental geology, groundwater and surface water chemistry. more than 60 playas have been identified in iran. considering the fact that playas and surroundi...

2013
M. Al-Qinna M. Salahat K. Mashal

Gravely calcareous soils cover approximately most of arid lands (in percent); however, the solute transport behavior in these soils remains a current issue. This research aimed at estimating and correlating the solute transport parameters in gravely calcareous soils as being affected by different land uses through the knowledge of the soil morphological, physical, and chemical properties. Four ...

ژورنال: علوم آب و خاک 2012
صالح سنجری, , عیسی اسفندیار‎پور بروجنی, , محمد‎هادی فرپور, , مصطفی کریمیان اقبال, ,

Paleosols provide invaluable data on paleoclimatic conditions of the area. These soils widely exist in central Iran. Micromorphology and clay mineralogy are among valuable techniques which are useful for interpretation and identification of these soils. The present research was performed to compare the micromorphology and clay mineralogy of paleosols and modern soils of Jiroft area. After field...

Journal: :Archives of environmental contamination and toxicology 2004
Bart Vandecasteele Paul Quataert Bruno De Vos Filip M G Tack

The concept of an integrated multifunctional river management is gaining importance. For major rivers, restoring the contact between rivers and alluvial plains is an important goal, as riparian areas have a specific role for several riverine processes. However, former and current human activities are an obstruction or a limitation for river restoration. We studied the influence of former dredgi...

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