Analysis of Drought Status and its Impacts Groundwater Resources Karkheh Catchment in Kermanshah Province

Document Type : Research Paper

Authors

1 Department of Agriculture and Natural Resources,College of Agriculture and Natural Resources,Faculty of Economics & Agricultural Development, University of Tehran

2 Department of Agriculture and Natural Resources,College of Agriculture and Natural Resources,Faculty of Economics & Agricultural Development, University of Tehran

Abstract

Abstract
Drought as a natural and inevitable phenomenon, frequently occur in the different regions of Iran and It lead to economic, social, and environmental damages. One of the drought damages is the reduction of groundwater resources. The main aim of this study was to investigate the effects of drought on groundwater resources in Karkhe catchment in Kermanshah province. In this study, meteorological drought status of the region was studied using SPI index and its derived criteria such as number of years of exposure to drought, longest drought period and magnitude of drought period in 30 years period (1986-2016).then Mann-Kendall tests and Sen's slop were used to investigate the trend of changes in the spi index and groundwater level. Finally, the effect of drought on groundwater drop was investigated using Pearson correlation coefficient. The results showed that the trend of drought is not significant. But the trend of groundwater depletion was significant and, it has become more intense over time. The results also showed that drought have no significant impact on groundwater depletion in the study area and it seems that the role of overexploitation of groundwater resources is more important than drought effects. Hence, Development of low-water-use crops and development of watershed and aquifers feeding activities were proposed as practical policies.

Keywords

Iranian Journal of Agricultural Economics and Development Research

Articles in Press, Accepted Manuscript
Available Online from 15 September 2021

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