Journal of Applied Sciences1812-56541812-5662Asian Network for Scientific Information10.3923/jas.2008.594.600TorkashvandAli Mohammadi 4200884This study in Jajrood sub-basin, North East Tehran, was conducted to
investigate some methods for water-soil erosion types mapping by GIS.
Four models were used for providing working units` maps by integration
of data layers including A. plant cover, geology and slope B. land use,
geology and slope C. land use, rocks erodibility and slope and D. land
use, rocks erodibility and land units. The surface, rill and gully erosion
intensity in the 314 spot were controlled to provide ground truth map
from each of these erosion features. Soil erosion type`s map obtained
from the integration of these truth maps and then this map was crossed
by the maps A to D. Results indicated that the integration of land use,
rocks erodibility and land units layers is a better model for providing
erosion types map than other models from an economic and executive regards.
The cross of the map D with the ground truth maps of surface, rill and
gully erosions showed the greatest and least accuracy are related to providing
gully erosion and erosion features maps, respectively. The greatest precision
of model was related to providing gully erosion map (with coefficient
of variation 17.8%) and the least precision (with 40.5% coefficient of
variations) was related to providing erosion features map. In conclusion,
model D is suitable for preparation of gully erosion map no erosion features
map. It is recommended that the same study is done in another basin with
the different climate and geology.]]>Bayramin, I., O. Dengiz, O. Baskan and M. Parlak,200327105116Boardman, J., A.J. Parsons, R. Holland, P.J. Holmes and R. Washington,200350165184Bou Kheir, R., O. Cerdan and C. Abdallah,200682347359Daeles, L. and M. Antrop,197727123190Esmali, A. and H. Ahmadi,20032003pp: 15Essa, S.,20042004pp: 16Feiznia, S.,19954795116Feoli, E., L.G. Vuerich and W. Zerihun,200291313325Flugel, W.A., M. Marker, S. Moretti, G. Rodolfi and H. Staudenrausch,19993641653Frazier, B.E., D.K. Mc Cool and C.F. Engle,1983387074Khawlie, M., M. Awad, A. Shaban, R. Bou Kheir and C. Abdallah,2002571323Mahler, P.J.,19793rd Edn.,pp: 103pp: 103Martinez-Casasnovas, J.A.,200350293308Mohammadi-Torkashvand, A., D. Nikkami and M. Esfandiari,20052005Moussa, R., M. Voltz and P. Andrieux,200216393412Navas, A. and J. Machin, 199737433441Navas, A., Machin and J. Soto, 2005137Cs.]]>105493506Noble, K.E. and J.R. Fletcher, 1984Rahnama, F., 20032003Raoofi, M., H.G. Refahi, N. Jalali and F. Sarmadian,200435797807Refahi, H.G.H.,20002nd Edn.,pp: 551pp: 551Shi, J.C. and J. Dozier, 199759294307Shrimail, S.S., S.P. Aggarwal and J.S. Samra,200135460Sidorchuk, A., M. Marker, S. Moretti and G. Rodolfi,200350507525Singh, G., R. Babu, P. Narain, L.S. Bhushan and I.P. Abrol,1992479799Sirvio, T., A. Rebeiro-Hargrave and P. Pellikka,20042004pp: 17Souchere, V., O. Cerdan, N. Dubreuil, Y. Le Bissonnais and C. King,200561229240Stromquist, L., B. Lunden and Q. Chakela,198567313Stromquist, L.,19901990pp: 1-12pp: 1-12Vrieling, A.,200665218Ygarden, L.,200350217242Yuliang, Q. and Q. Yun,2002298588