Document Type : Research Paper
Authors
1 SANRU
2 PHD student of irrigation and drainage, Department of Water Sciences and Engineering, Faculty of Agricultural Engineering, Sari University of Agricultural Sciences and Natural Resources, Sari, Iran
3 Master's student in water resources management, Sari University of Agricultural Sciences and Natural Resources.
Abstract
The current research was conducted with the aim of identifying and prioritizing factors affecting the harvesting of river materials and providing optimal harvesting management indicators. The required information has been obtained through survey-type field research, by conducting face-to-face interviews and using questionnaires. The examination of technical factors showed that items T3 with a frequency of 16.92% and item T5 (changes in the level of underground water in aquifers near the river) with a frequency of 4.61% are the most important and least important factors in harvesting river materials, respectively. Among the legal components of item L1 and item L6, with frequencies of 18.69% and 8.46% respectively, the first and last priorities of the factors affecting the harvesting of river materials have been assigned to themselves. The results of the study of socio-economic factors affecting the harvesting of river materials showed that item S1 with a frequency of 15.38% is the first priority of socio-economic factors affecting the harvesting of river materials and item S3 is the least important (6.17%) factor in harvesting. It is a river material. On the other hand, item E2 is the most important influencing factor in harvesting river materials with a frequency of 23.08% and item E5 with a frequency of 16.15% is the least important factor among environmental components.
The results of the general investigation of legal, technical, socio-economic and environmental factors indicate that the weakness of the legal components is the most effective factor in aggravating the negative consequences caused by the harvesting of river materials.
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