Effects of Habitat Destruction on seasonal floods and Management in River Basin: A Case Study of Zarrin Gol River

Document Type : scientific research article

Authors

1 1Assistant Prof., Dept. of Fisheries, Faculty of Agriculture and Natural Resources, Gonbad Kavous University, Iran,

2 Dept. of Fisheries, Faculty of Agriculture and Natural Resources, Gonbad Kavous University, Iran

Abstract

Nature is always at the risk of human activity and natural injury and damages. Flooding is one of those natural disasters that causes damage in nature. This research in the Zarin-Gol River basin has a geographic position of 40 ° 43 ° 54 'to 36 ° 11'55' E and the latitude '30 43 ° 36 'to 44 ° 8'37 " using the statistics of flood discharging stations and stations registered in the summer of 2017 in order to achieve the process of change (during field operations) and the cause of the flood. The results of this study showed that the highest destructive flood in the Zarin-Gol basin in Aliabad-Katoul city was reported in August, summer. The maximum width is 80 meters in the upper area of the river and is dominated by bedrock. Also, the percentage of river marginal vegetation cover after the flood has decreased dramatically. Reduction of total annual rainfall and the occurrence of long-term droughts, increase in maximum annual precipitation and its occurrence in unusual season in August, the presence of tributary with a steep slope, conversion forest and rangeland area to dry land, excessive livestock and blockage bridges are due to being small of natural and human factors that are effective in flood events in this area. In general, these factors causing the destruction of the natural habitat of natives living in the river and reduce biodiversity or destroy them.

Keywords

References

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Journal of Utilization and Cultivation of Aquatics
Volume 9, Issue 2
July 2020
Pages 33-44

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