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  1 - Integrating the climatic data and remote sensing for detection of Oak drought condition (Case study: Ilam province)
      zohreh shahghasemi
  In terms of oxygen production, reduction of pollution and environment diversity forest is one of the most important among other resources and is considered as an important resource for the survival of the human and is a safe environment for wildlife. Climate and its par More

  In terms of oxygen production, reduction of pollution and environment diversity forest is one of the most important among other resources and is considered as an important resource for the survival of the human and is a safe environment for wildlife. Climate and its parameters have a fundamental role in the formation and life of forest. There are various types of forest. Oak western forest is the second largest areas of forest in Iran. In recent years, this forest has been suffering from dieback phenomenon. The main aim of this study is to monitor forest dieback in Ilam Province. For this purpose, synoptic station data and remote sensing data were used for the study of climate and the process of dieback, respectively. It was tried to be used a period of long-term data and good distribution of stations. The results showed that the forest dieback phenomenon in Ilam Province mostly is due to the reduction trend of precipitation. The most severe droughts condition was occurred in 2008 and 2005. As a result of these changes, the growth of forest trees over the same priod has been greatly altered. Time trend analysis of trees greenness showed that in 2008 and afterward the amount of trees greenness significantly was reduced. This situation represents a direct relation between climate parameters temperature with the greenness of trees in the region. Manuscript profile