نتایج جستجو برای: soil physical factors depths

تعداد نتایج: 1838310  

Journal: :Atmosphere 2023

Soil temperature plays an important role in soil respiration, which is related to the atmospheric carbon cycle. In addition its own physical and chemical properties, also influenced by external environmental factors, including plants. Therefore, it relevant explore relationship between plant characteristics temperature. This study was conducted Hangzhou, China. The influence of canopy structura...

ژورنال: علوم آب و خاک 2001
حاج‌رسولیها, شاپور , رحمانی, حمیدرضا , کلباسی, محمود ,

Soil as the third major component of our environment is exposed to different kinds of pollution. Lead has been recognized as a factor in environmental pollution. Pollution of soil and plants along the highways and roads by Pb from automobile exhaust gases has extensively been reported as the most important pollutant source in the environment. This research was carried out to determine the degre...

حاج‌رسولیها, شاپور , رحمانی, حمیدرضا , کلباسی, محمود ,

Soil as the third major component of our environment is exposed to different kinds of pollution. Lead has been recognized as a factor in environmental pollution. Pollution of soil and plants along the highways and roads by Pb from automobile exhaust gases has extensively been reported as the most important pollutant source in the environment. This research was carried out to determine the degre...

Journal: :محیط شناسی 0
فریدا ایرجی آسیابادی دکتری علوم محیط زیست، دانشکدۀ کشاورزی و منابع طبیعی، دانشگاه آزاد اسلامی واحد اصفهان (خوراسگان)، اصفهان، ایران سید احمد میرباقری استاد، دانشکدۀ مهندسی عمران، دانشگاه صنعتی خواجه نصیر طوسی، تهران، ایران علی اصغر بسالت پور استادیار، دانشکده کشاورزی، دانشگاه ولی عصر (عج) رفسنجان، رفسنجان، ایران

1. introduction isfahan oil refinery (isfahan, iran) is responsible for the production of huge amounts of oil waste. as the released organic compounds are highly toxic, carcinogenic, and mutagenic, they can potentially contaminate the soil and groundwater resources of the adjacent area. this is particularly important in isfahan where arid/semi-arid climate has limited the access to adequate sur...

2000
M. A. Hajabbasi A. Hemmat

To take advantage of conservation tillage systems (including direct drilling and non-inversion) in central Iran, it is important to study the effects of different cultivation practices on soil structural stability as a physical indicator. A four-year study was conducted to investigate the effects of seven tillage systems on aggregate properties of a clay-loam soil (Calcic Cambisol) with continu...

Journal: :Journal of environmental sciences 2018
Ling Kong L M Chu

Urban grasslands not only provide a recreational venue for urban residents, but also sequester organic carbon in vegetation and soils through photosynthesis, and release carbon dioxide through respiration, which largely contribute to carbon storage and fluxes at regional and global scales. We investigated organic carbon and nitrogen pools in subtropical turfs and found that dissolved organic ca...

Today, climate change and global warming caused by the emission of greenhouse gases is a big challenge to the world, especially in arid and semi-arid area. Afforestation is the most effective strategy to absorb carbon dioxide in terrestrial ecosystems and reduce global warming of the earth. The purpose of this study is to evaluate the effects of planting Eucalyptus camaldulensis and Amygdalus s...

2015
S. J Hall G. McNicol W. L. Silver

It has been proposed that the large soil carbon (C) stocks of humid tropical forests result predominantly from C stabilization by reactive minerals, whereas oxygen (O2) limitation of decomposition has received much less attention. We examined the importance of these factors in explaining patterns of C stocks and turnover in the Luquillo Experimental Forest, Puerto Rico, using radiocarbon (C) me...

2014
Hye Min Kim Ji Young Jung Etienne Yergeau Chung Yeon Hwang Larry Hinzman Sungjin Nam Soon Gyu Hong Ok-Sun Kim Jongsik Chun Yoo Kyung Lee

The subarctic region is highly responsive and vulnerable to climate change. Understanding the structure of subarctic soil microbial communities is essential for predicting the response of the subarctic soil environment to climate change. To determine the composition of the bacterial community and its relationship with soil properties, we investigated the bacterial community structure and proper...

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