04580nam a2200469 4500 20260818132034.0 th eng .b11583885 AIT Thesis no.SR-96-01 Ahmed, Iftikhar Geospatial assessment of soil salinity and its multicriterion physical constraints : a case study in the Fordwah/Eastern Sadiqia irrigation system, Punjab, Pakistan Bangkok : Asian Institute of Technology, 1996 88 leaves : ill. Thesis ; no. SR-96-01 Thesis (M. Sc.) - Asian Institute of Technology, 1996 A thesis submitted in partial fulfilment of the requirements for the degree of Master of Science, School of Environment, Resources and Development Salinity is highly detrim ental to both ferti lity of the so il and the environment. Assessment of soil salinity and its various physical factors in a timely and cost effective manner to reclaim the salt-affected area is one of the prime requirements in the progress and development of the agri culturally dependent countries like Pakistan. Remote Sensing (RS) and Geographic Information System (GIS) technologies are emerging as indispensable tools in the study and mapping of this dynamic phenomenon. This study presents a workable methodology with resu lts, obtained through application of RS data in integration of GIS, to assess soil salinity and its ph ys ical constraints. Approximately 788 sq. km. of salt-affected area in an irrigated regime of southern Punjab, Pakistan was selected for the stud y. Digi tal Image Processing and Classification and stati s1ical techniques were used in estab li shing objective-ori en ted results. An extensive ground truth survey of the study area was conducted to collect first hand knowledge about the problem extent of salinity in the area The usefulness of Landsat Thematic Mapper (TM) and SPOT Multispectral (XS) data has been assessed through qu ali tative and quantitative anal ys is. The capability and limi tations of sensors were studi ed on the basis of resultant statistics of the training samples used for classification . A highly saline area, mostly in crust form , is eas ily identifiable and clearly distingui shable from other classes. However, an accurate differentiation between moderately salin E' and other highly refl ective fine eroded materi al is not possible with existing resolution of the remote sensing data and capabi lities of available image processing systems. The vegetation having high density and canopy is also an hindrance in discrimination of slightly salinE' from non sal ine areas. Based on the res ults of the study, it can be concluded that integrated use of RS and GIS i:; highly useful in assessment of soil sa linity and some of its related factors. Soils, Salts in Pakistan Punjab Andrianasolo, Haja, Chairperson Delsol, Jean-Pierre, Examination committee Kaew Nualchawee, Examination committee Thailand (King's), Scholarship donor Asian Institute of Technology. Thesis ; no. SR-96-01 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B14740 .b11583885 mnait v 241213 0 970206 m a v 0 000:001:PDF:b1158388:001919:0:0:0:0:0:0 Abstract--AIT Thesis no.SR-96-1 n mnait mnait mnarc mnarc mnarc 20 40 Barcode : 30020220000783 CREATED : 1997-06-02 RECORD # : i11902656 LPATRON : 1018830 LCHKIN : 2007-08-25 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 1 TOT RENEW : 0 Barcode : 30020220000809 CREATED : 1997-06-02 RECORD # : i11902668 LPATRON : 1019399 LCHKIN : 2008-01-12 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 1 TOT RENEW : 0 Barcode : 30050120552061 CREATED : 2015-06-02 RECORD # : i12835250 LPATRON : 1026127 LCHKIN : 2016-02-09 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 2 TOT RENEW : 0 Barcode : 30050120221261 CREATED : 2016-01-04 RECORD # : i12918052 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050121069214 CREATED : 2023-05-09 RECORD # : i13462957 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 50311 50311 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT Thesis no.SR-96-01 30020220000783 2026-08-18 13:20:34 1 2026-08-18 20 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT Thesis no.SR-96-01 30020220000809 2026-08-18 13:20:34 2 2026-08-18 20 0 0 0 0 MAIN MAIN mnarc 2026-08-18 50.00 0 AIT Thesis no.SR-96-01 30050120552061 2026-08-18 13:20:34 3 2026-08-18 20 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no.SR-96-01 30050120221261 2026-08-18 13:20:34 1 2026-08-18 40 0 0 0 0 MAIN MAIN mnarc 2026-08-18 50.00 0 AIT Thesis no.SR-96-01 30050121069214 2026-08-18 13:20:34 4 2026-08-18 20