نتایج جستجو برای: organic carbon content

تعداد نتایج: 840940  

2012
Swapnil G Sanmukh Waman N Paunikar Sandhya Swaminathan Satish K Lokhande

The interconversion of carbon in organic, inorganic and refractory carbon is still beyond the grasp of present environmentalists. The bacteria and their phages being the most abundant constituents of the aquatic environment, represents an ideal model for studing carbon regulation in aquatic system. The refractory dissolved organic carbon (DOC) a recently coined terminology from the microbe-driv...

2015
Swapnil Sanmukh Krishna Khairnar Waman Paunikar Satish Lokhande Mayur Bharat Kurade Swapnil Sanmukh Balendu Shekher Giri

The bacteria and their phages are the most abundant constituents of the aquatic environment, and so represent an ideal model for studying carbon regulation in an aquatic system. The microbe-mediated interconversion of bioavailable organic carbon (OC) into dissolved organic carbon (DOC) by the microbial carbon pump (MCP) has been suggested to have the potential to revolutionize our view of carbo...

Journal: :international journal of environmental research 2012
z. miletić m. knežević s. stajić o. košanin i. đorđević

the effect of european black alder (alnus glutinosa l.) on the contents of carbon and nitrogen,exchangeable base cations, and plant available forms of phosphorus in the reclaimed mine soils formed bywaste deposition from opencast lignite mines was researched in central serbia. it was concluded that thegreatest part of dead organic residues reaching the soil under european black alder monocultur...

Journal: :تحقیقات آب و خاک ایران 0
سیروس جعفری دانشیار/ دانشگاه کشاورزی و منابع طبیعی رامین احمد گلچین استاد/ دانشگاه زنجان احمد طولابی فرد کارشناسی ارشد/ دانشگاه کشاورزی و منابع طبیعی رامین خوزستان

this research was conducted to study the effect of land use change on some physical fractionation component of organic matter and some of its quality factors. therefore, two uncultivated and cultivated (such as rotational cropping and sugarcane) were selected in khuzestan province. disturbed and undisturbed soils were sampled from 0-30 and 30-60 cm depths. total n, oc, dispersible clay (dc), ag...

Journal: :مدیریت خاک و تولید پایدار 0
نوش آفرین حسینی عربلو دانشگاه آزاد اسلامی واحد میانه حبیب خداوردیلو هیات علمی شجاع قربانی دشتکی استادیار-دانشگاه شهرکرد حمیدرضا ممتاز دانشگاه ارومیه

cation exchange capacity (cec) is one of the main factors in monitoring and management of soil quality in order to achieve sustainable production. although cec can be measured directly, these measurements are difficult, time-consuming and costly, especially for aridisols. one alternative method is the use of pedotransfer functions (ptf), in which cec of soils is estimated through available soil...

2013
Jixin Cao Xiaoping Wang Xiangyang Sun Lin Zhang Yun Tian

Grazing can cause changes in soil carbon (C) level. This study aimed to elucidate the response of soil labile organic carbon (SLOC) under four different grazing intensities: non grazing (NG), 0 sheep·ha(-1); light grazing (LG), 0.91 sheep·ha(-1); moderate grazing (MG), 1.82 sheep·ha(-1), and heavy grazing (HG), 2.73 sheep·ha(-1). Results showed that there was no significant difference in total ...

The influence of carbon content in three organic dyes, blue21, yellow20, and green40 on the adsorption behavior using organo-bagasse as a biosorbent was investigated. The organo-bagasse was prepared by adsolubilisation using tetradecyltrimethyl ammonium bromide as a chemical modifying agent. The precursor and organo-bagasse were characterized by elemental analysis, Brunauer-Emmett-Teller method...

Journal: :مدیریت خاک و تولید پایدار 0
وحیدرضا جلالی کرمان ابراهیم بابائیان عضو ستاد فناوری آب، فرسایش، خشکسالی و محیط زیست-معاونت علمی فناوری ریاست جمهوری

background and objectives: soil organic carbon is a main soil property and particularly important for development and sustainable management of agricultural systems. soil organic matter content, which is typically measured in the form of soil organic carbon soc content, is commonly regarded as a key indicator of soil quality and utilization (liu et al., 2015). the presence of som has been prove...

Journal: :آب و خاک 0
خدیجه سالاری نیک محسن نائل قاسم اسدیان علی اکبر صفری سنجانی

introduction: soil organic matter is influenced strongly by vegetation cover and management, therefore it is proposed as the main indicator of soil quality and health. the changes in soil organic matter status occur much more rapidly in the labile pools than in organic c. thus, labile pools can be used as early indicators of changes in total organic matter that will become more obvious in the l...

2015
Xuexin Shao Wenying Yang Ming Wu Dafeng Hui

Soil labile organic carbon and soil enzymes play important roles in the carbon cycle of coastal wetlands that have high organic carbon accumulation rates. Soils under three vegetations (Phragmites australis, Spartina alterniflora, and Scirpusm mariqueter) as well as bare mudflat in Hangzhou Bay wetland of China were collected seasonally. Seasonal dynamics and correlations of soil labile organic...

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