introduction: drought stress is one of the main problems in agricultural productions in arid and semiarid regions such as iran. lack of water influences on most of plant physiological processes such as photosynthes, cellular development and uptake and transmission of nutrients in plants. some approaches such as selection of resistance cultivars to drought stress, and selection of dripped irriga...

Wetlands are one of the most important ecosystems due to their critical services both humans and environment. Therefore, wetland mapping monitoring essential for conservation. In this regard, remote sensing offers efficient solutions availability cost-efficient archived images over different spatial scales. However, a lack sufficient consistent training samples at times is significant limitatio...

soil erosion is a major problem for developing countries with arid and semi-arid climate. these of erosion is possible than two ways of water and wind. in this paper, with using of two methods irifer and hierarchical models, the rate and intensity of of soil erosion is estimated shadegan catchment. for this purpose, by using various maps alike dem, rainfall, land use index, ndvi, geology estima...

In this study frequency and composition of plankton in Shadegan wetland was carried out in 5 stations during 2007-2008. Genus qualitative identification and their composition and quantitative frequency aspect were studied (for phytoplankton chlorophyll a). Frequency of total 42 genus phytoplankton in 4 classes Bacilariophyceae (Diatom), Cyanophyceae, Chlorophyceae and Dinophyceae are 69.4, 22.2...

oligonychus afrasiaticus mcg is a key pest on kabkab and khasi date cultivars in behbehan. this research was conducted based on randomized complete block designs with 9 cultivars and 3 replications in behbehan agricultural research station during 2008 and 2009. the main idea of the investigation was the response assessment of these cultivars to the spider mite. the cultivars included kabkab, kh...

knowledge of transport and degradation of polycyclic aromatic hydrocarbons (pahs) is important in assessing pah contamination of soils and water resources. the transport of naphthalene, anthracene, pyrene and phenanthrene was determined in a contaminated calcareous soil obtained from the shadegan wetland (khozestan, iran) considering a column study in laboratory conditions. the pahs were added ...

introduction regional inequality on social and economic grounds is one of the important obstacle in economic development. thus, one of the main issues for policy making and planning in designing a comprehensive social and economic plan is the balanced development in different regions. the recognition of each region situation in relation to other cases is a necessary factor in decreasing inequal...

conclusions there was high percentage of seronegative (70.65 %) igg and igm antibodies in full-term pregnant women. they were susceptible to acute toxoplasmosis; thus, prenatal screening was recommend in our province after cost-beneficial analyses. results the participants’ age range was 15 to 45 years (average: 27.4 ± 13). of the 501 pregnant women, 70.65 % (n = 354) were seronegative for t. g...

fish is one of the important nutrient sources in many parts of the world. consumption of fish like other parts of the world is high in khoozestan province. the role of fish in transmission of some parasitic agents to human is investigated by many researchers. this study aims to investigate internal and external zoonosis parasites and the importance of these parasites in transferring disease in ...