Advertisement
Advertise here Publish your press releases here Sponsor BioPortfolio
Follow us on Twitter Sign up for daily news and research emails Contributors wanted

Effects of precipitation and temperature on crop production variability in northeast Iran.

20:40 EDT 23rd April 2014 | BioPortfolio

Summary of "Effects of precipitation and temperature on crop production variability in northeast Iran."

Climate variability adversely impacts crop production and imposes a major constraint on farming planning, mostly under rainfed conditions, across the world. Considering the recent advances in climate science, many studies are trying to provide a reliable basis for climate, and subsequently agricultural production, forecasts. The El Niño-Southern Oscillation phenomenon (ENSO) is one of the principle sources of interannual climatic variability. In Iran, primarily in the northeast, rainfed cereal yield shows a high annual variability. This study investigated the role played by precipitation, temperature and three climate indices [Arctic Oscillation (AO), North Atlantic Oscillation (NAO) and NINO 3.4] in historically observed rainfed crop yields (1983-2005) of both barley and wheat in the northeast of Iran. The results revealed differences in the association between crop yield and climatic factors at different locations. The south of the study area is a very hot location, and the maximum temperature proved to be the limiting and determining factor for crop yields; temperature variability resulted in crop yield variability. For the north of the study area, NINO 3.4 exhibited a clear association trend with crop yields. In central locations, NAO provided a solid basis for the relationship between crop yields and climate factors.

Affiliation

Faculty of Agriculture, Ferdowsi University of Mashhad, P.O. Box 91775-1163, Mashhad, Iran, bannayan@um.ac.ir.

Journal Details

This article was published in the following journal.

Name: International journal of biometeorology
ISSN: 1432-1254
Pages:

Links

PubMed Articles [16652 Associated PubMed Articles listed on BioPortfolio]

The influence of mean climate trends and climate variance on beaver survival and recruitment dynamics.

Ecologists are increasingly aware of the importance of environmental variability in natural systems. Climate change is affecting both the mean and the variability in weather and, in particular, the ef...

Environmental variability counteracts priority effects to facilitate species coexistence: evidence from nectar microbes.

The order of species arrival during community assembly can greatly affect species coexistence, but the strength of these effects, known as priority effects, appears highly variable across species and...

Temperature and rainfall strongly drive temporal growth variation in Asian tropical forest trees.

Climate change effects on growth rates of tropical trees may lead to alterations in carbon cycling of carbon-rich tropical forests. However, climate sensitivity of broad-leaved lowland tropical trees...

Universal sample preparation method integrating trichloroacetic acid/acetone precipitation with phenol extraction for crop proteomic analysis.

Crop plants contain large amounts of secondary compounds that interfere with protein extraction and gel-based proteomic analysis. Thus, a protein extraction protocol that can be easily applied to vari...

Mercury in Precipitation at an Urbanized Coastal Zone of the Baltic Sea (Poland).

Wet deposition is an important source of metals to the sea. The temporal variability of Hg concentrations in precipitation, and the impact of air masses of different origins over the Polish coastal zo...

Clinical Trials [1451 Associated Clinical Trials listed on BioPortfolio]

Variability Analysis as a Predictor of Liberation From Mechanical Ventilation

The purpose of this study is to evaluate if the variability of biological signals, such as heart rate and temperature, can predict weaning from mechanical ventilation in patients with fail...

HIV Risk Reduction and Drug Abuse Treatment in Iran

A randomized, double blind clinical trial comparing buprenorphine and naltrexone maintenance treatment when combined with drug abuse and HIV risk reduction counseling (DC-HIV) for heroin a...

Genetic and Environmental Risk Factors for Esophageal Cancer in Patients With Esophageal Cancer and in Healthy Participants in Northern Iran

RATIONALE: Gathering information about genetic and environmental risk factors in patients with esophageal cancer and in healthy participants in Northern Iran may help doctors learn more ab...

Effects of Duloxetine vs. Escitalopram on Heart Rate Variability in Depression

Low heart rate variability is a marker of increased risk of cardiac mortality, and is observed in depressed coronary artery disease patients. Some antidepressants may themselves, however,...

Clinical Effects of Temperature Controlled Laminar Airflow (TLA)

The purpose of this study is to determine whether clean air administered to the breathing zone with Temperature controlled Laminar Airflow (TLA) during night is effective in the treatment...

Medical and Biotech [MESH] Definitions

A method which uses specific precipitation reactions to separate or collect substances from a solution.

The science of soil cultivation, crop production, and livestock raising.

The science of studying the characteristics of the atmosphere such as its temperature, density, winds, clouds, precipitation, and other atmospheric phenomena and aiming to account for the weather in terms of external influences and the basic laws of physics. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)

Any significant change in measures of climate (such as temperature, precipitation, or wind) lasting for an extended period (decades or longer). It may result from natural factors such as changes in the sun's intensity, natural processes within the climate system such as changes in ocean circulation, or human activities.

Search BioPortfolio: