In this research Standardized Precipitation Index (SPI) in a period of 22 years (1990 to 2011) was used for zoning of climatic and agricultural drought in South Khorasan province, Iran. Rainfall data of six synoptic stations were collected and used for evaluation of meteorological drought. Also, reports of some local offices such as natural resources, […]
Drought is a major problematic phenomenon mostly for semi-arid areas of Iran. During drought periods, reduction in vegetation levels causes such problems as soil erosion, surface runoff, flood risk, etc. Therefore, the assessment of drought effects on plant covers is the most important issue. This research was conducted in 2015 using the extracted vegetation indices […]
Reduction in vegetation cover and increasing land surface temperature are the most important consequences of drought which leads to land degradation. Therefore, the evaluation of drought effects on vegetation cover and its relationship with land surface temperature is very important. To that end, the objective of this study was to evaluate the relationship among vegetation […]
