نتایج جستجو برای: changes area
تعداد نتایج: 1396072 فیلتر نتایج به سال:
Assessment of land use changes in the previous years and prediction of these changes in the following years is an essential tool for different planning and management of natural resources. Therefore, the aim of present study is modeling of land use changes in Mehran Plain using Markov- Cellular automata Model in 2028. In order to detect land use changes in the studied area, TM and ETM+ satellit...
Knowledge about long-term land cover/use changes is essential for evaluating and predicting their consequent problems by urban managers and policymakers. Remote sensing with landscape metrics is an effective tool for monitoring these changes in urban cores and their peripheral areas. During the recent decades, industrial and urban growth, and immigration of people into Isfahan metropolitan area...
Introduction: Reciprocal changes are ST depression ≥1 mm in electrocardiogram of the patients with acute myocardial infarction in the reciprocal leads. This question that these changes are merely secondary to ST elevation in infarction area or that they are truly subendocardial ischemia secondary to involvement of coronary artery that perfuse that area is not clearly defined. Methods and Materi...
the concept of land use transition highlights that land use change is non-linear and is associated with other societal and biophysical system changes. changes in human systems has resulted in changes in the natural system such as changes in land use. land use change causes not only environmental factors like geography and topography are important, but social factors examined such as population ...
this study was undertaken to identify morphological changes in young seedlings of 5 iranian almond species (prunus dulcis, p. eburnea, p. eleagnifolia, p. haussknechti, and p. scoparia) under polyethylene glycol-induced drought stress. drought stress caused a significant reduction in plant growth parameters such as fresh and dry weights of plant organs, leaf number, total leaf area, and leaf re...
In general, investigation of changes occurred in the area of mangrove and saltmarshes indicates the balance between these two ecosystems and plays an important role in providing necessary solutions to maintain their ecosystem services. Hence, the aim of this study was to investigate the changes in the expanse of mangroves and saltmarshes in the mangrove habitats of Hormozgan province during a l...
One of the sensitive systems in geomorphology is coastal systems in which the change in them is fast due to the collision of two dynamic environments of sea and land.Because Coastal lines can record evidence of geomorphological alterations. Due to several reasons like environment changes, global warming, issues regarding human activities and etc. studies and quantitative measurements from perio...
Abstract Anthropogenic interventions in natural forests have resulted deforestation and forest degradation. There is a reduction the number of trees per unit area, which results changes biomass stocks. Deforestation degradation are believed to contribute increasing atmosphere’s greenhouse gases. Satellite remote sensing has played an essential role generating information about This study aims a...
Introduction: Groundwater is the main source of water supply for agricultural purposes, especially in arid and semi-arid regions. the Water Quality Index (WQI) is used to provide early and quick results of the assessment of water quality status, IRWQI has been developed with the aim of using appropriate method with natural conditions and water resources issues in Iran. In this research, the tre...
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