نتایج جستجو برای: soil samples under plants and without plant area control samples at depth of 0

تعداد نتایج: 24480666  

ژورنال: علوم آب و خاک 2012
حبیب خداوردی‌لو, , رقیه حمزه‌نژاد تقلیدآباد, , سالار رضاپور, , شهرام منافی, ,

Soil contamination with heavy metals, including Cd and Pb, is of serious concern. The aim of this study was to investigate the efficiency of Atriplex verucifera, Salicornia europaea and Chenopodium album for simultaneous remediation of soil exchangeable sodium percentage and Cd and Pb contamination in two soils with different properties. Two soils, including a saline-sodic-calcareous (S1) and c...

پایان نامه :0 1374

the following question poped up: is there any relationship between iranian high school efl learners reading comprehension and listening comprehension? then the following null hypothesis (ho) was developed to the test the above, mentioned question. "there is no relationship between high school efl learners reading comprehension and listening comprehension. for nearly 16 weeks, the experimental g...

Journal: :journal of rangeland science 2012
abdolhossein rezaipoorbaghedar mohammad hossein hakimi majid sadeghinia hamid reza azimzadeh

in order to sustainable use of rangelands, it is necessary to recognize water, soil, and vegetation cover and analyze their relationships. physical and chemical properties of soil are effective in distribution of plant species in local area. to determine the effects of some soil properties on species distribution of eurotia ceratoides and stipa barbata in baghedar summer region of bafgh, three ...

ژورنال: علوم آب و خاک 2014

Copper is considered as one of the most important nutrient elements for plants. If its contents are concentrated higher than the standard value it can be considered as a pollutant element. The content of absorbable copper in the area around Sarcheshmeh copper mine can be significantly high. In this study, samples of soil were collected in summer through a particular sampling method with chimney...

Journal: :The Science of the total environment 2006
Silvia G Egler Saulo Rodrigues-Filho Roberto C Villas-Bôas Christian Beinhoff

This study examines the total Hg contamination in soil and sediments, and the correlation between the total Hg concentration in soil and vegetables in two small scale gold mining areas, São Chico and Creporizinho, in the State of Para, Brazilian Amazon. Total Hg values for soil samples for both study areas are higher than region background values (ca. 0.15 mg/kg). At São Chico, mean values in s...

The rehabilitation of sandy desertified land in various dryland ecosystems by different management practices has a great potential to increase aggregate stability and improve soil quality. However, plants in general may have a different ability to sustain soil. The objective was to determine the effects of reclamation practices including Haloxylon ammodendron and Atriplex canescens plantation o...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده علوم پزشکی 1389

introduction: diabetes mellitus is an growing national and international public health concern. the number of people affected by diabetes in world by 2030 will be 69% in developing countries. regular physical activity plays a key role in the management of type 2 diabetes melitus, particularly glycemic control. it has been recommended that peoples with type 2 diabetes participate in moderate-int...

Journal: :تحقیقات نظام سلامت 0
مرضیه وحید دستجردی کارشناس ارشد، مرکز تحقیقات محیط زیست? دانشگاه علوم پزشکی اصفهان? اصفهان، ایران. سعید شنبه زاده کارشناس ارشد مهندسی محیط زیست? شبکه بهداشت و درمان مسجد سلیمان، اهواز، ایران. اسداله ذهب صنیعی کارشناس ارشد مهندسی بهداشت محیط? سازمان آب منطقه ای اصفهان، اصفهان، ایران. رضا روزگار کارشناس بهداشت محیط، سازمان آب منطقه ای اصفهان، اصفهان، ایران.

background: gavkhooni marsh is one of the most important marshes in iran. in the recent years, natural conditions of this marsh have been affected by agricultural and industrial activities in zayandehrood river catchment areas. this research was carried out in 2006 to assess some chemical parameters and the heavy metals concentration in water, soil, and plants in the area and to compare the res...

Background and purpose: Extensive use of various forms of medicinal plants makes it necessary to continuously monitor the production and supply of these plants. Also, it is important to study metal and pesticide contaminants in medicinal plants in order to prevent hazards from their consumption. This study aimed at investigating the pollutants and mineral element levels in widely consumed medic...

Abbas Ahmadi Azadeh Fathi Hamid Toranjzar,

Annually, 200 ha of Agh Ghala rangelands in Golestan, Iran are under Alkaligrass Puccinella distans''s cultivation but the failure in the identification of appropriate sites for seed sowing may result in high costs of cultivation. The current study aims to reduce such costs through the examination of apt sites to grow P. distans in northern rangelands of Agh Ghala Golestan, Iran. Because of the...

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