background and purpose: one of the most prominent concerns for the water consumers is pathogenic microorganism contamination. wells and underground water resources are the main resources of drinking water in sari city, iran. the main objectives of the research project were to explore the distribution and frequency of mycoflora in wells and underground water resources of the city and their conta...

Considering water resource scarcity and uncertainty in climate and demand futures, decision-makers require techniques for sustainability analysis in resource management. Through unclear definitions of “sustainability”, however, traditional indices for resource evaluation propose options of limited flexibility by adopting static climate and demand scenarios, limiting analysis variables to a part...

drought is a complex natural phenomenon that can occur in any climate. hydrologic drought in the river flow of arid and semi-arid areas causes serious shortages, threatens the quality of life, and impacts on the economy. understanding this feature is then essential for the management of water resources. hydrologic drought in the sense of deficient river flow is defined as the periods that river...

background childhood malnutrition as a major public health problem among children in developing countries can affect physical and intellectual growth and is also considered as a main cause of child morbidity and mortality. the objective of this study was to estimate the prevalence of under-nutrition and identify determinants of malnutrition among children under 6 years of age in fars province, ...

The analysis of mixed pasture species has proven to be a useful guide to plant and animal nutrition. Fourteen or more elements can be analysed in plants and the results used to correct any potential problem. In Southland low Ca MQ. Co and Se are the main problems in animal nutrition, with low Sand MO the main deficiencies in plant nutrition. Most elements in pasture vary with soil temperature i...

introduction: providing the nutritional requirements of agricultural crops by non-chemical resources is a new approach in the organic farming that has attracted the attention of both the researchers and the consumers in recent years. therefore, it is highly important to find new fertilizer resources that are both economically able to provide the nutritional needs of the crop plants and have no ...

introduction: ground water as a dynamic and recyclable natural resource in fractured rock terrains are characterized by single and double fracture porosity models. due to the heterogeneous nature of the medium hydraulic properties of these rocks are mainly controlled by fracturing and influenced by multivariate parameters. this heterogeneity is due to various compactions , density of fractures ...