investigating naturalphysicaladsorption ofoilcontent bymangroves, a field-scale study
نویسندگان
چکیده
mangroves are one of the main important species which have critical function in ecologicalprocesses in the coastal habitats. recent studies have focused on long term effects such as biological andchemical responses and reactions of ecosystems. in this research, short term response of avicennia marina’spneumatophores as one of substantial parts of mangroves has been considered while facing the oil slick in tidalwaves. factorial experimental design was conducted considering three factors, each one in two levels in bothspring and winter seasons, separately. experiments were carried out in the north coastline of the persian gulfwhere one of the mentioned species habitat in the naybandnatural national park of iran is located. experimentalevidences on the studied blocks were investigated by experimental analysis, accurately. results revealed themain effective factors which can raise the damages of oil spill in the mangroves habitat through oil adsorptionon the pneumatophores. investigations showed the concentration level of the main significant factors that canaffect the adsorption process. the second significant factor on physical adsorption is retention time, alsoknown as contact time. tests results indicated that adsorption in winter is generally more than that in spring.no significant effect of day or night time on the physical oil adsorption by pneumatophores was traced.
منابع مشابه
constructing a cultural dimensions scale and investigating efl teacher burnout,iranian identity components, and the norms of khorasan razavi culture
این تحقیق در ساختار چهار مرحله ای خود هشت هدف را دنبال کرد: در مرحله اول، تنها هدف طراحی و معتبر سازی پرسشنامه ای بومی بر اساس مدل فرهنگی شش بعدی هافستد (2010) بود. این کار با استفاده از داده های جمع شده از 370 نفر و توسط روش آماری sem انجام شد. مرحله دوم که با استفاده از داده های جمع شده از 170 معلم زبان انگلیسی انجام شد دارای دو هدف بود: هدف اول، بررسی فرسایش کاری معلمان زبان از دید ابعاد فره...
Investigating the psychometric properties of Diving Moral Disengagement Scale (DMDS) : A cross-sectional study in Tehran
Introduction: Comparing aggressive behavior in everyday life and driving context shows that driving can increase the aggressive manner. This anger and rage leading to serious harm for oneself or other people, in addition it can sometimes causing immoral and obscene behavior. This issue that “why good people do bad, inhuman and unethical things without feeling guilty” discussed in bandura’s mora...
متن کاملInvestigating rating scale category utility.
Eight guidelines are suggested to aid the analyst in investigating whether rating scales categories are cooperating to produce observations on which valid measurement can be based. These guidelines are presented within the context of Rasch analysis. They address features of rating-scale-based data such as category frequency, ordering, rating-to-measure inferential coherence, and the quality of ...
متن کاملA professional commitment scale for clinical nurses: A study protocol
Background: As the largest and most fundamental group targeted by programs developed to improve quality of care, nurses should be the focus of attention in the management of human resources in the field of health care. A review of literature on this subject revealed the lack of scales designed for measuring professional commitment in nurses. The present study was designed to develop a scale to ...
متن کاملInvestigating the Psychometric Properties of the Persian Version of the Mentalized Affectivity Scale in Students: A Descriptive Study
Background and Objectives: Mental affectivity is a new perspective on emotion regulation. This view has introduced a new aspect in emotional regulation. The aim of this study was to investigate the psychometric properties of the Persian version of the Mentalized Affectivity Scale in university students. Materials and Methods: The research method is cross-sectional and factor analysis. Its sta...
متن کاملSeasonal variations of microbial community in a full scale oil field produced water treatment plant
This study investigated the microbial community in a full scale anaerobic baffled reactor and sequencing batch reactor system for oil-produced water treatment in summer and winter. The community structures of fungi and bacteria were analyzed through polymerase chain reaction–denaturing gradient gel electrophoresis and Illumina high-throughput sequencing, respectively. Chemical oxygen demand eff...
متن کاملمنابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
international journal of environmental researchناشر: university of tehran
ISSN 1735-6865
دوره 9
شماره 1 2015
کلمات کلیدی
میزبانی شده توسط پلتفرم ابری doprax.com
copyright © 2015-2023