نتایج جستجو برای: sandy soils

تعداد نتایج: 56399  

Journal: :Journal of environmental quality 2012
Johanna Santamaría Mark L Brusseau Juliana Araujo Patricia Orosz-Coghlan William J Blanford Charles P Gerba

A series of miscible-displacement experiments was conducted to examine the retention and transport behavior of oocysts in natural porous media. Three soils and a model sand were used that differed in physical and geochemical properties. Transport behavior was examined under various treatment conditions to help evaluate retention mechanisms. Significant retention of oocysts was observed for al...

Journal: :NJAS: Wageningen Journal of Life Sciences 2001

Journal: :Arctic, Antarctic, and Alpine Research 2002

Journal: :Applied and Environmental Microbiology 2004

Journal: :Zagazig Journal of Agricultural Research 2020

2013
Kristofer D Johnson Jennifer W Harden A David McGuire Mark Clark Fengming Yuan Andrew O Finley

Permafrost is tightly coupled to the organic soil layer, an interaction that mediates permafrost degradation in response to regional warming. We analyzed changes in permafrost occurrence and organic layer thickness (OLT) using more than 3000 soil pedons across a mean annual temperature (MAT) gradient. Cause and effect relationships between permafrost probability (PF), OLT, and other topographic...

ژورنال: علوم آب و خاک 2015
واعظی, علی‌رضا, وطنی, امین,

Rill erosion is the detachment and transport of soil particles by concentrated flow of runoff. It is the most common form of water erosion in the hill slopes. Rill erodibility is the rate at which soil particle is detached and transported by shear force of the concentrated flow. The study was conducted to determine the rill erodibility in different soil textures in Zanjan province using a rainf...

Improvement and stabilization of soils are widely used to improve the physical and mechanical properties of sandy soils. Despite the abundance of researchers that have been conducted on this topic to date, most of them have focused on dry soil. The effects of the existing water in the soil and different curing durations (curing environment) have not been investigated. In this study, different p...

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