Volume 15, Number 57 (fall 2011)                   JWSS 2011, 15(57): 77-89 | Back to browse issues page

XML Persian Abstract Print

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

K. Kamali, M. Mahdian2, M. Arabkhedri1, A. Charkhabi1, N. Ghiasi1 and A. M. Mahdian, M. Arabkhedri, A. Charkhabi, N. Ghiasi, A. Sarreshtehdari. Floodwater Spreading Effects on Soil Fertility Changes in Floodwater Spreading Stations. JWSS. 2011; 15 (57) :77-89
URL: http://jstnar.iut.ac.ir/article-1-1874-en.html

Abstract:   (12235 Views)
Floodwater Spreading (FS) plays an effective role in improving soil fertility, ground water recharge, vegetation cover, and desertification control. The soil fertility might increase as a result of a suitable suspended sediment material transferred to the downstream by flood events. To define a relevant FS method which increases the efficiency of the FS projects, it is necessary to study the quality and quantity of transported sediment material, spatially and temporarily. In this research, this subject was investigated by taking soil samples throughout 13 FS stations for physical and chemical analysis over 5 years. Within each of the 13 selected stations in the three first flooded dikes, soil sampling was carried out using random-systematic method. The total Nitrogen, absorbed Phosphorous and Potassium, and Organic Carbon of each sample were analyzed. Because of the abnormality of data, nonparametric test was adopted to compare means. All stations were classified into three groups using cluster analysis method. Based on the results, the variations of fertility factors are irregular between the dikes and amongst years. This could have been affected by several factors such as the quality and quantity of diverted flood, the characteristic of FS sites, and irregularity of sediment material deposited on the sites. Despite the low quality of soil fertility prior to the construction of these stations, in general, FS has a considerable role in improving the soil fertility. However, desirable objectives may be achieved in long term through occurrence of diverse flood events and suitable maintenance of the stations.
Full-Text [PDF 448 kb]   (2383 Downloads)    
Type of Study: Research | Subject: Ggeneral
Received: 2011/12/28

Add your comments about this article : Your username or email:
Write the security code in the box

© 2015 All Rights Reserved | JWSS - Isfahan University of Technology

Designed & Developed by : Yektaweb