نتایج جستجو برای: soil micromorphological features

تعداد نتایج: 700709  

2015
Shih-Hao Jien Chung-Chi Wang Chia-Hsing Lee Tsung-Yu Lee Marc A. Rosen

Food demand and soil sustainability have become urgent concerns because of the impacts of global climate change. In subtropical and tropical regions, practical management that stabilizes and prevents organic fertilizers from rapid decomposition in soils is necessary. This study conducted a short-term (70 days) incubation experiment to assess the effects of biochar application on the decompositi...

Journal: رستنیها 2009
A. JALILI B. HAMZEHEE M. RABIE, Y. ASRI,

Thirty-four populations of Artemisia sieberi from 10 provinces of Iran were investigated with respect to quantitative characteristics of leaves and seeds. In each habitat, five plants were randomly selected and some branches were harvested for studying leaf characteristics in spring and seed characteristic in autumn. Principle features of climate and soil were studied in each habitat. In order ...

2011
M. Sundararajan

Surface samples have been collected from Kerala coast, Valapatanam-Azhikode deposit of northern Kerala coast. The average heavy minerals percentage shows 30.32 %. The heavy mineral assemblage of samples from area showed an appreciable percentage of opaque followed by sillimanite and zircon. The chemical analysis carried out for the present investigation, is detailed as Ferrian ilmenite. X-ray d...

Journal: :Mycologia 2010
M Catherine Aime David L Largent Terry W Henkel Timothy J Baroni

This paper is the fourth in a series documenting the Entolomataceae taxa (Agaricales, Basidiomycota) from Guyana. Six new species in three genera are described-Calliderma caeruleosplendens, Paraeccilia unicolorata, Trichopilus tibiiformis, T. fasciculatus, T. vividus, and T. luteolamellatus-occurring primarily in mixed tropical rainforests of the Potaro River Basin in the Pakaraima Mountains. M...

2005
Roman Ridge M. Raimonda Usai Helen Keeley

The micromorphological investigation suggested that materials with traces of ploughing, buried under the road, were in situ soils probably truncated or rearranged before burial. The analysis also showed that materials from a context at the roadside (Context 536) were not comparable to the buried soils sealed by the Roman road, and had probably been dumped or deposited by gravity at the road sid...

Journal: :Journal of Archaeological Science: Reports 2022

In the Eastern Mediterranean, where some of earliest known urban cities are located, relatively little is about soils in archaeological contexts. Red Mediterranean Soil (RMS) a hallmark region while impact long-term urbanization on RMS material understudied. this article we present evidence from longue durée cityscape Jerash, Jordan, to determine how humans have used, modified and impacted an c...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علوم کشاورزی و منابع طبیعی گرگان - دانشکده جنگلداری و مهندسی چوب و کاغذ 1391

درک الگوی توزیع مکانی ماکروفون خاک بدلیل اثرات آن روی فرآیندهای اکوسیستم بسیار مهم است. لیکن اطلاعات کمی در این خصوص وجود دارد. درمورد تنوع زیستی ارگانیسم ها وجانداران خاکزی که ازاجزای مهم وکلیدی درهرسیستم اکولوژیکی هستند و در بهبود حاصلخیزی خاک و تولیدات زمین وپایداری اکوسیستم ها(ازطریق فرآیندهای بیولوژیک)نقش عمده دارند تحقیقات کمی انجام شده است. این تحقیق جهت بررسی الگوی مکانی پارامترهای تنوع...

Journal: :Brazilian oral research 2011
Gisela Muassab Castanho Márcia Martins Marques Juliana Barbosa Marques Maitê André Camargo Antonio Alberto De Cara

The purpose of this study was to test the hypothesis that both human and bovine sclerotic dentin have similar hardness properties, in addition to similar micromorphological characteristics. Sixteen teeth (8 human and 8 bovine) exhibiting exposed dentin in the incisal edge and showing characteristics typical of sclerosis were used. Vickers surface microhardness testing was conducted. Three areas...

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