Pakistan Journal of Biological Sciences1028-88801812-5735Asian Network for Scientific Information10.3923/pjbs.2008.2083.2091SolaimaniK. OmidvarE. KelarestaghiA. 1220081117This research is focused on morphologic changes of channels
resulted from establishing check dam construction in Chehel cheshme watershed
located at Fars Province. In this study, five channels with check dams
were selected through the study area. Then some morphologic parameters
of channels such as width/depth ratio, the maximum depth and cross section
area along the channel on which check dam were constructed had been measured.
These measurements were made on 6 cross section areas in 10, 50 and 90%
distances from check dams at upstream and downstream. The above mentioned
parameters were calculated using calculating and graphic soft wares. Then,
some analytical methods were used to estimate and compare the average
digital numbers of calculated parameters through different channels. The
results showed that check dams have definitely influenced on width/depth
ratios at their upstream and downstream. These influences are associated
with higher width/depth ratios at upstream and lower width/depth ratio
at downstream. Furthermore, the maximum depth of channels had significant
influenced by check dams. As for cross section areas, no significant difference
existed between cross sections through total channels and check dams.]]>Boix-Fayos, C., G. Barberá, F. López-Bermúdez and V.M. Castillo,200791103123Brandt, S.A.,200040375401Castillo, V.M., W.M. Mosch, G.C. Conesa, G.G. Barberá and J.A. Navarro-Cano et al.,200770416427Catella, M., E. Paris and L. Solari,2005131145152Chatwin, S.C., D.E. Howes, J.W. Schwab and D.N. Swanston,19942nd Edn.,pp: 220pp: 220Dunne, T. and L.B. Leopold,19781st Edn.,pp: 818pp: 818Eisbacher, G.H. and J.J. Clague,198484-16230230Gray, D.H. and A.T. Leiser,19821st Edn.,pp: 288pp: 288Goude, A.S.,2004Vol. 1. 1st Edn.,pp: 1-578pp: 1-578Heierli, W. and A. Merk,19851985pp: 375380Kabir, A.,20071418 (In Persian)Khodami, M.,20052005Lal, R.,200581137142Lien, H.P.,2003187487Lin, B.S., C.H. Yeh and H.P. Lien, 2008232843Marston, R.A. and L.S. Dolan,199931313323May, C. and R. Gresswell,200328409424Pimentel, D.,19976197204Poesen, J.W.A. and J.M. Hooke,199721157199Ran, D.C., Q.H. Luo, Z.H. Zhou, G.Q. Wang and X.H. Zhang,200823159166Refahi, H., 20065th Edn.,pp: 671pp: 671