نتایج جستجو برای: 15cm depth the soil physico

تعداد نتایج: 16122947  

Attack and disintegration of concrete structures under the influence of aggressive fluids, wet gases, etc. are understood as corrosion of concrete. The corrosion of concrete is a chemical, colloidchemical process, yet often a physico-chemical one, while that of reinforced concrete supported oil platforms are subjected to marine environment in the Persian Gulf and therefore corroded. In the pres...

2010
Haifeng Li Fanjiang Zeng Dongwei Gui Jiaqiang Lei

Cele Oasis on the southern edge of Tarim Basin was used to investigate the impact of human activity on the soil environment of the oasis–desert ecotone during the oasis expansion process. Since farmland is extending into the oasis–desert ecotone during oasis expansion, reclaimed farmland and control plots within the ecotone were investigated. The variations in soil moisture, soil nutrients and ...

Journal: :Environmental pollution 2009
Ling Zhang Lu Wang Kedong Yin Ying Lv Derong Zhang

In this study, the natural Cu background concentration and Cu natural and anthropogenic contamination in soil, water and crop were investigated systematically in Huangshi area. The results show that regional geology is the dominant factor controlling the natural Cu background concentration in soil and water, and that pH is important to control the vertical distribution of Cu in soil under the s...

2003
Noah Fierer Joshua P. Schimel Patricia A. Holden

Soil profiles are often many meters deep, but with the majority of studies in soil microbiology focusing exclusively on the soil surface, we know very little about the nature of the microbial communities inhabiting the deeper soil horizons. We used phospholipid fatty acid (PLFA) analysis to examine the vertical distribution of specific microbial groups and to identify the patterns of microbial ...

2016
Sandip Singh Bhatti Vasudha Sambyal Avinash Kaur Nagpal

Berseem (Trifolium alexandrinum) is one of the main fodder crops of Punjab, India. But due to the heavy metal contamination of agricultural soils by anthropogenic activities, there is rise in metal bioaccumulation in crops like Berseem. In addition to human influence, heavy metal contents in soil are highly dependent on soil characteristics also. Therefore a study was conducted in areas having ...

سروی مغانلو, وحید, مهدوی بیله سوار, آرزو, مهدوی بیله سوار, فرهاد,

Relationship of is one of the most useful interactions in terrestrial ecosystems that its positive effects on growth, physiology and ecology of different plants has been documented. This study investigated the relationship between important physicochemical characteristics of soils such as pH, electrical conductivity (EC), soil texture, organic carbon percentage, soil potassium percentage and t...

Journal: :مدیریت خاک و تولید پایدار 0
علیرضا کریمی هیات علمی سمیه باقریفام دانشگاه فردوسی مشهد حسین شایسته زراعتی دانشکده کویر شناسی، دانشگاه سمنان

soil is known as a suitable reservoir for carbon sequestration. the objective of this study was to investigate the capability of haloxylon on sequestration of carbon in sand dunes of yahya abad, sabzevar, in northeastern iran. eighty soil samples were taken from two depths of 0-5 and 5-10 cm under and between haloxylon trees. eight soil profiles under and between haloxylon trees were described ...

Journal: :Journal of The Serbian Chemical Society 2023

Soil erosion is a problem that affects the landscape at different scales and represents serious challenge for land management soil conservation in both natural forests meadows. The aim of this study was to determine how parent material use affect physical chemical properties area Fruska Gora Mountain. soils were separated into five bedrock types: serpentinite, marl, trachyte, shale, loess two f...

Journal: :International Journal of Enviornment and Climate Change 2022

The aim of this paper was to establish the effect different spacing and nitrogen levels on quality parameters beetroot cv. Detroit Dark Red under Telangana state conditions. It carried out during rabi season 2020-21 at SKLTSHU, College Horticulture, Rajendranagar, Hyderabad, India. experiment laid in Factorial Randomized Block Design with sixteen treatments replicated thrice. Treatment consiste...

2010
DUSTIN L. HERRMANN ALEXANDER E. KO SURABHI BHATT JASON E. JANNOT STEVEN A. JULIANO

IntraspeciÞc geographic variation in morphology and behavior can be indicative of populations that are adapted to local environmental conditions. Heterogeneity in the abiotic environment, such as soil conditions, can be an important driver of local adaptation. In southFlorida,mean body sizes in populations of the lubber grasshopper Romalea microptera (Beauvois) (Orthoptera: Acrididae), increase...

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