Department of Forestry, Faculty of Agriculture, University of Ilam, Ilam, Iran.
In land use planning, mapping the present land use / land cover situation is a necessary tool for determining the current condition and for identifying land use trends. In this study, in order to provide a land use/ land cover map for Ilam watershed, the IRS-1C image data from 25th April 2006 were used. Initial qualitative evaluation on data showed no significant radiometric error. Ortho-rectification of imagery was accomplished using ephemeris data, digital maps of topography and 45 ground control points with RMSe less than 0.7 pixels. Different suitable spectral transformations such as rationing, PCA, Tasseled Cap transformation were performed on the images in ILWIS software to enhance and produce new artificial images. Image classification was done using supervised classification maximum likelihood and minimum distance classifier utilizing original and synthetic bands resulted from diverse spectral transformation. Unsupervised classification was used to determine strata for ground truth. The results were assessed using a sample ground truth map through systematic random sampling and samples were designed in circle form and 1000m? area. Finally, nine main classes of land use / land cover (Rangeland, Forest (dense, semi-dense, sparse, very sparse), Agriculture, gardens, settlements and bare lands) could be determined. For representing accuracy, the rate was used from some criteria of accuracy such as overall accuracy and Kappa coefficient with 83% overall accuracy and 0.78 kappa coefficient.
Amin, M.R., Shataee, Sh., Ghazanfari, H.O., Moaieri, M.H. (2008) Changes in Zagros's forests extention using aerial photos and satellite imagery (Case study, Armerdeh forests of Baneh). J. Agric. Sci. Natur. Resour. 15: 1-12.
Cautam N. C, Narayan. L. R. A, (1985) Land use and land cover mapping and change detection in Tripura using Land Sat satellite data, J. Indian Soc., of R.S. 6: 517-528.
Congalton, R. G. (1996) Accuracy assessment: A critical component of land cover mapping. Gap. Analysis 2: 119-131.
Daryokvandy, A., Babaii, S., Sosani, J., Adeli, E. (2009) the survey of forest area and density alterations in middle Zagros by using of Aerial photographs interpretation and GIS, Case study: Kakarezay region, Lorestan province. The third national forest conference, Tehran, 12-14 may, 2009, pp. 1-9.
Gautam N.C and C.H Channiah. (1985) Land use and land cover Mapping and change detection in Tripura using satellite Landsat data. J. Indian Soc. of R.S., 6: 517-528
ISRO (2007) Indian Space Research Organisation (ISRO). http://www.isro.org/. Accessed 15 June 2007.
Kelarestaghi, A., Ahmadi, H., Jafari, M. (2006) Evaluation and comparison of the potential of the ETM+ and ASTER imagery for forest land use mapping, case study Farim Drainage Basin. International Conference Map Asia 2006, 26 August - 1 September, Bangkok, Thailand, 3 p.
Lex C., Fisher P., Wadsworth R. (2005). "What is land cover?". Environment and Planning B: Planning and Design, 32: 199-209.
Lillesand, T. M. and Kiefer, R.W. (1994) Remote Sensing and Image Interpretation. (3rd Ed). John Wiley & Sons Inc.
Neba Shu, G. (2003) Detection and analysis of land cover dynamics in moist tropical rainforest of south Cameron. MSc. Thesis, ITC, Netherlands, 60 p.
Rao, D.P., Gautam, N.C., Nagaraja, R. and Ram Mohan, p. (1996) IRY-1C applications in land use mapping and planning. Current Science. 70: 575-581.
Rafieian, O. (2002) Forest extends change detection in north of Iran between 1994 till 2001 using ETM+ data. M.Sc thesis, Tehran University. 122p.
Rezaii Banafsheh, M., Rostamzadeh, H., Feizizadeh, B. (2008) Assessment of forest area change by using RS and GIS, Case study: Arasbaran Forest. J. of Geog. Rese. 62: 143-159.
Shamsudheen, M., Dasog, G.S. and Tejaswini, N.B. (2005) Land use/Land cover mapping in the coastal area of north Karnataka using remote sensing data. J. Indian Soc. of R.S. 33: 253-257.
Shataee, Sh., Abdi, O. (2007) Land cover mapping in Mountainous lands of Zagros using ETM+ data, case study: Sorkhab watershed, Lorestan province. J. Agric. Sci. Natur. Resour. 14: 2007
Shetty, A., Nandagiri L., Thokchom, S. and Rajesh M.V.S. (2005) Land use / land cover mapping using satellite data for a forested watershed, Udupi district, Karnataka state, J. Indian Soc. of R.S. 33: 233-238.
Singh, B.M. and Roy A.K. (1989) Remote sensing for integrated survey of urban environment. J. Indian Soc. of R.S., 17: 109-114.
Skidmore, A. (1989) Unsupervised Training Area Selection in Forests Using a NonParametric Distance Measure and Spatial Information. Int. J. of R. S. 10: 133-146.