Relationship between Level of Water in Parishan Lake and Surrounded Wells with Respect to Excessive Groundwater Extraction
Subject Areas : Agricultural Economics Research
S. Ghazali
1
(کارشناس ارشد اقتصاد کشاورزی دانشگاه شیراز)
Keywords: Excessive extraction Agricultural Wells, Granger Causality Test, Parishan Lake,
Abstract :
Excessive extraction of groundwater causes water quantity and quality to decrease. Parishan is one of the plains in Fars province that recently suffered from excess extraction of groundwater resources. This paper objectives were to determine the amount of groundwater extraction around Parishan Lake and to find out mutual relationship between groundwater table and water level of Parishan Lake by Granger Causality Test. The results of Granger Causality Test showed mutual causality between water level of lake and groundwater table. Increase in extraction from agricultural wells caused fall in groundwater table and decrease in lake level at the same time. On the other hand, decrease in water lake level causes fall in groundwater table due to decrease in penetration. Finally, some recommendations are made to improve the situation