نتایج جستجو برای: 2065 and 2080

تعداد نتایج: 16827421  

Journal: :Agronomy 2021

Soil organic carbon (SOC) sequestration in arable soils is a challenging goal. We focused on the effect of crop rotation and previous land use for future two experimental fields Retisols with four contrasting fertilization treatments each. analyzed SOC dynamics used RothC model to forecast SOC. found consistent increase stocks stable fractions soil matter (SOM) C accumulation next 70 years comp...

2013
Silvio Alencar Marques Maria Regina Cavariani Silvares Rosangela Maria Pires de Camargo Mariangela Esther Alencar Marques

Histoplasmosis is a systemic mycosis endemic in extensive areas of the Americas. The authors report on an urban adult male patient with uncommon oral-cutaneous lesions proven to be histoplasmosis. Additional investigation revealed unnoticed HIV infection with CD4+ cell count of 7/mm3. The treatment was performed with amphotericin B, a 2065 mg total dose followed by itraconazole 200mg/daily plus...

ژورنال: آبخیزداری ایران 2019

Climate change is an unprecedented change are taking place. Changes of meteorological parameters such as precipitation, maximum and minimum temperatures. Since weather forecasting is important for these parameters, in this study, the performance of Statistical Downscaling Model (SDSM and Lars-WG) were used to predict temperature and precipitation and mean of these changes for the periods 2046-2...

2013
Mário G. Pereira Teresa J. Calado Carlos C. DaCamara Tomás Calheiros

Wildfires are a major problem in Portugal. Since 1980 an area equivalent to 3/5 of the forested surface has burned. The aim of the study was to assess the potential impact of regional climate change on wildfires in Portugal using an appropriate Burnt Area Model (BAM). Based on multiple regression analysis, the model was able to estimate the decimal logarithm of the monthly burnt areas in July a...

Journal: :Journal of vector ecology : journal of the Society for Vector Ecology 2009
Martina L Schäfer Jan O Lundström

The mass emergence of floodwater mosquitoes, in particular Aedes sticticus and Aedes vexans, causes substantial nuisance and reduces life quality for inhabitants of infested areas and can have a negative impact on the socio-economic conditions of a region. We compared the previous, present, and predicted geographic distribution of Ae. sticticus in Sweden. Previous records from the literature un...

2017
Nasim Hosseini Jacinda Johnston

Flows along the upper Qu’Appelle River are expected to increase in the future via increased discharge from Lake Diefenbaker to meet the demands of increased agricultural and industrial activity and population growth in southern Saskatchewan. This increased discharge and increased air temperature due to climate change are both expected to have an impact on the water quality of the river. The Wat...

ژورنال: :تولید گیاهان زراعی 0
براتعلی خزائی دانشگاه آزاد اسلامی، واحد گرگان، گرگان، ایران افشین سلطانی استاددانشگاه علوم کشاورزی و منابع طبیعی گرگان ابوالفضل فرجی هیأت علمی مرکز تحقیقات کشاورزی استان گلستان

سابقه و هدف: متخصصین اصلاح نباتات جهت انتخاب اهداف اصلاحی خود از میان صفات مختلف فیزیولوژیکی و مورفولوژیکی نیازمند دسته­بندی محدودیت­ها و همچنین قابلیت‎های موجود در گیاهان هستند؛ این موضوع باعث به وجود آمدن مفهومی به نام تیپ ایده­آل شده است. رسیدن به تیپ ایده‎آل گیاهان زراعی مستلزم استفاده از روش‎های آماری مناسب است. هدف این مطالعه معرفی روش استفاده از مدل‎سازی رگرسیونی جهت تعیین تیپ ایده‎آل گی...

2012
Caren C Dymond

UNLABELLED BACKGROUND The default international accounting rules estimate the carbon emissions from forest products by assuming all harvest is immediately emitted to the atmosphere. This makes it difficult to assess the greenhouse gas (GHG) consequences of different forest management or manufacturing activities that maintain the storage of carbon. The Intergovernmental Panel on Climate Chang...

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