نتایج جستجو برای: enough and toxicity areas 196 surface soil samples 0

تعداد نتایج: 17181492  

Using seasonal floods is very important in arid and semi arid areas. Suspended sediments in the flood are caused changes in soil properties. The aim of this study is to investigate the soil chemical and physical properties affected by low quality floods irrigation. Sampling from three phases, in each phase three points (beginning, middle and end of the row) and in the depths of 30-0, 60-30 and ...

Journal: :Toprak ve su dergisi 2021

This research was carried out to determine the fertility and microelement scopes of agricultural soils İzmir province create a database distribution maps (pin maps) by using geographic information systems technique between 2014-2017. Within scope research, total 502 soil samples, representing areas, were taken from 0-20 cm depth with 2.5 km x grid intervals. In samples taken; texture, pH, EC, l...

Journal: :Annals of agricultural and environmental medicine : AAEM 2014
Angelina Wójcik-Fatla Violetta Zając Bernard Wasiński Jacek Sroka Ewa Cisak Anna Sawczyn Jacek Dutkiewicz

Leptospira is an important re-emerging zoonotic human pathogen, disseminated by sick and carrier animals, water and soil. Weather calamities, such as flooding or cyclones favour the spreading of these bacteria. To check a potential role of natural water and soil in the persistence and spread of Leptospira on the territory of eastern Poland, 40 samples of natural water and 40 samples of soil wer...

2013
Iraj Bagheri Samira Bahram Kalhori Mehdi Akef Farhad Khormali

The objective of this research was to assess the effect of skidding machinery on soil physical and micromorphological properties. The different positions (control or non-traffic areas, left wheel track, right wheel track and log track) and two soil depths (0 10 and 10 20 cm) in three repetitions were investigated. The results showed that average soil dry bulk density in four positions and two s...

Journal: :international journal of environmental research 2014
a.l. ananthapadmanabha r. shankar k. sandeep

in this study we report the rock magnetic properties of surface soil samples and their spatialvariability from the northernmost district of kerala to understand pedogenic processes and soil erosion. themagnetic signal is mainly from fine grained pedogenic magnetite as other sources like anthropogenic andlithogenic magnetite, bacterial magnetite and greigite are absent. the surface soil samples ...

N. Asgari Hafshejani S. Jafari

ABSTRACT-This experiment was carried out to study particle size distribution (PSD) of carbonates in soils and its effect on some calcareous soil properties in Khuzestan Province, Iran. Soil samples (n=72) were collected from different regions. To evaluate the effect of carbonates on water contents at pressure head of -1500kpa and PSD of soil samples, these properties were determined before and ...

اکبرلو, موسی , بهره مند, عبدالرضا, جعفری فوتمی, عیسی, نیک نهاد قرماخر, حمید,

After the destructive floods in Golestan Province during the early seventies, numerous biomechanical practices were performed in order to the restoration of vegetation cover and affecting the runoff in the main cluster of Gorganrood river, so the extensive studies are necessaire for the evaluation of their results. The goal of this study was to evaluate the changes in some physicochemical prope...

2017
Douglas Karlen Diane E. Stott Cynthia A. Cambardella Robert J. Kremer Greg W. McCarty Douglas L. Karlen

Soil quality (SQ) assessment is a proactive process for evaluating soil and crop management effects on biological, chemical, and physical indicators of soil health. Our objectives were to evaluate several SQ indicators within five Agricultural Research Service (ARS) experimental watersheds (WS) and determine if those indicators were affected by manure, tillage, or crop rotation histories. Ten s...

Journal: :international journal of infection 0
mohammad ali mohaghegh department of parasitology and mycology, school of medicine, isfahan university of medical sciences, isfahan, ir iran mojtaba azimi resketi department of parasitology and mycology, school of medicine, isfahan university of medical sciences, isfahan, ir iran reza mohammadimanesh department of parasitology and mycology, school of medicine, isfahan university of medical sciences, isfahan, ir iran mehdi azami skin diseases and leishmaniasis research center, isfahan university of medical sciences, isfahan, ir iran farzaneh mirzaie department of parasitology and mycology, school of medicine, isfahan university of medical sciences, isfahan, ir iran; school of paramedicine, shahid sadoughi university of medical sciences, yazd, ir iran mohammad falahati department of parasitology and mycology, school of medicine, isfahan university of medical sciences, isfahan, ir iran

conclusions the results of the present study revealed that soil resources of these areas were contaminated with opportunistic amoebas such as acanthamoeba and hartmannella spp. and this may lead to severe diseases in high-risk people, such as immunocompromised patients. background free-living amoebas are very abundant in nature, especially in water and soil. some species of amoebas cause seriou...

Introduction: Natural radioactivity in the soil is considered a major indicator of radiological contamination. Primordial radionuclides are the main source of natural radioactivity. Natural radioactivity transfers radionuclides into the environment and poses radiation hazards to people's health. Therefore, the present study aimed to determine the radon concentration an...

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