Land suitability assessment studies for crop production in certain areas provide opportunities and limitations to decision makers and thus helping in planning for alternative landuses in the unsuitable areas. Optimizing utility of a land parcel for a specific Landuse is directly based on its qualitative & quantitative attributes along with historical information. Crops grow best in the locations where certain soil and water conditions meet growth requirements. The term “overall suitability” refers to a combined measure of the selected component factors. The objective of this study was to evaluate the suitability of land for rice cultivation in Sheikhupura and Nankana Sahib Districts of Punjab. The study area plays an important role in providing agricultural commodities to Pakistan. The methodology adopted combines most aspects of soil, environment and ground water quality attributes that affect crop suitability at large. Good management practice is assumed; including the use of appropriate crop varieties, fertilizers, irrigation and sowing period etc. The soil data (pH, texture, salinity (electrical conductivity) and organic matter), ground water data (water table depth and water quality) and meteorological data (rainfall and temperature) were required as the inputs for model development. Suitability maps of Sheikhupura and Nankana sahib districts for rice cultivation were established by scanning, Georeferencing and digitizing the SSOP soil maps, further interpolation, classification /reclassification, merging and dissolving of vector data was carried out, then all criteria layers were rasterized. Further, pairwise comparison method in the form of Analytical Hierarchy Process (AHP) was used to compute significance weights of different controlling parameters for assessing suitable land for rice cultivation in the study area. The results were displayed in map and tabular form. This study suggested an easy approach for decision makers (including farmers) for the improvement of rice production and yield by using spatial decisions made in GIS environment and also by pointing to enhance/reclaim different parameters of soil where needed.


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    Title :

    Land suitability assessment for rice crop using geospatial techniques


    Contributors:


    Publication date :

    2013-06-01


    Size :

    864899 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




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