Sub-basins prioritization using morphometric analysis-remote sensing technique and GIS-Golestan-Iran

• Autorzy: Amani M. , Safaviyan A.
• Języki publikacji: EN

Abstrakty

EN

Sub-basins prioritization is one of the most important resolutions of development sustainability and natural resources comprehended management. In this study, 11 sub-basins of Lohender in east Golstan province about 272/63cm Prioritized using computation and morphometric analysis and using GIS and RS techniques. Erosion mode in each sub-basin specified through Sediment Yield Index approximation. In morphometric analysis, parameters like canal length, bifurcation ratio, discharge density, sub-basins shape coefficient, round coefficient, stretch coefficient and compressive coefficients were computed thus these parameters divided to two classifications: linear coefficients and figurative coefficient. In order to study annual sediment index, from fields applied maps, land coverage, slope, soil type and topographic map scale 1:50000 were used. Finally, each sub-basin Priority determined due to Sediment Yield Index (SYI) and total average of morphometric parameters. According to morphometric parameters, the BS sub-basin and according to SYI parameter, A5 sub-basin showed more critical mode and combination of both showed that B2 sub-basin showed the worst situation.

Słowa kluczowe

EN

Iran; Golestan province; subbasin; Geographic Information System; morphometric analysis; remote sensing method; sediment yield index

• Wydawca: -
• Czasopismo: International Letters of Natural Sciences
• Rocznik: 2015
• Tom: 38
• Opis fizyczny: p.56-65,fig.,ref.

Twórcy

autor

Amani M.

• MSc Watershed, Agricultural and Natural Resources University of Gorgan, Iran

autor

Safaviyan A.

• MSc Agricultural and Natural Resources University of Gorgan, Iran

Bibliografia

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