[Home ] [Archive]   [ فارسی ]  
:: Main :: About :: Current Issue :: Archive :: Search :: Submit :: Contact ::
:: Volume 32, Number 1 (6-2017) ::
geores 2017, 32(1): 24-36 Back to browse issues page
Analysis of Morphological Factors in the Changes of Spatial Patterns of Alvand River
Abstract:   (89 Views)

Alvand is a vital River in western Iran that forms Iran’s border for the length of 27 km. Recent droughts and special morphological infrastructure, have provided a possibility for variability in the geometric pattern and spatial distribution. Understanding and extracting such changes and the morphological factors behind them is the important subject of current research. For this purpose, the pattern of spatial changes of the river in the past half century (1334-1394), has been analyzed, using remote sensing images. In this regard, the length of the river was divided into 26 segments based on the current pattern, and geometric changes were analyzed based on vector maps derived from images taken from each of this parts. Finally, the important factors in these changes were mentioned. The findings represent a change in the geometric pattern of most parts of the river; so that in all the parts that were studied, the axis of the river has undergone a variability between 12 to 51 degrees. Changes in the spatial pattern of the river have been the consequence of geometric changes, the surface of the river has been reduced from 3,748,044 square meters in 1334 to 3,319,433 square meters in 1394. Research findings regarding the causes of these changes in the spatial and geometric pattern of the river, emphasize environmental factors, as well as the recent drought and human activities around the river as central factor influencing this change.

Keywords: Fluvial geomorphology, The morphology of the river bed, River spatial change, Alvand river
Full-Text [PDF 1019 kb]   (77 Downloads)    
Type of Study: Research | Subject: Special
Received: 2017/06/13 | Accepted: 2017/06/13 | Published: 2017/06/13
References
1. ­ Antonelli, C., Provansal, M., Vella, C.) 2004(, Recent Morphological Channel Changes in a Deltaic Environment, the Case of the Rhone River, France, Geomorphology,Vol. 57, pp. 385-402.
2. ­ Burge, ML. (2004),Testing links between river patterns and in channel characteristics using MRPP and ANOVA. Geomorphology, 63, pp. 115-130.
3. ­ Gregory, K. J., Benito, G., Downs, P. W. (2008), Applying Fluvial Geomorphology to River Channel Management: Background for Progress towards a Paleohydrology Protocol, Journal Geomorphology, Vol. 98, pp. 153-172.
4. ­ Knighton, A.D., Nanson, G.C. (1993), Anastomosis and the continuum of channel pattern, Earth surface processes and landforms.l S, pp.613-625.
5. ­ Poria, M., Ahmadi, H., Jaafari, M., Bihamta, M., Salajegheh, A. (2013), Path Coefficient and path analysis of body weight and biometric traits in Male Capoeta trutta (Heckel, 1843) in Alvand River of Kermanshah Province,(West of Iran),International Journal of Farming and AlliedSciences,Vol.2,No.23.
6. ­ Simpson, J. Ch. (1999), Fluvial geomorphology f the sand bed river, North Montana, PhD thesis, University of Calgary, Alberta.
7. ­ Ouchi, S. (1983), Response of alluvial rivers to active tectonics (New Mexico, California), PhD thesis, Colorado state university.
8. ­ Shum, H. W. (1984), River and Related Problems, Symposium on River Meandering -june 1984, Colorado State-University, fort Collins, Colorado.
9. ­ Wang, J., Ishidaira, H. )2012(, Effects of Climate Change and Human Activities on Flowing to the Hoban Reservoir in the Red River Basin, the 18th Biennial Conference of International Society for Ecological Modeling, China.
10. ­ Zawiejska, J., Bartlomiej, W. ( 2010), Twentieth-Century channel on the Dunajec River, Southern Poland: patterns, causes and controls, Journal Geomorphology, Vol. 11, pp. 246-234.
Add your comments about this article
Your username or email:

Write the security code in the box >



DOI: 10.18869/acadpub.geores.32.1.24


XML   Persian Abstract   Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Analysis of Morphological Factors in the Changes of Spatial Patterns of Alvand River. geores. 2017; 32 (1) :24-36
URL: http://georesearch.ir/article-1-100-en.html
Volume 32, Number 1 (6-2017) Back to browse issues page
فصلنامه تحقیقات جغرافیایی Geographical Researches Quarterly Journal
Persian site map - English site map - Created in 0.102 seconds with 800 queries by yektaweb 3430