TY - JOUR T1 - A Study of the Effects of Climatic Parameters on Determining Land Areas for the Cultivation of Canola in Ardabil Province Using GIS AU - Esfandyary, Fariba JO - Research Journal of Biological Sciences VL - 4 IS - 11 SP - 1165 EP - 1168 PY - 2009 DA - 2001/08/19 SN - 1815-8846 DO - rjbsci.2009.1165.1168 UR - https://makhillpublications.co/view-article.php?doi=rjbsci.2009.1165.1168 KW - Canola KW -climatic elements KW -factors KW -Ardabil Province KW -GIS AB - In the present study, regions favorable for the cultivation of canola seeds were determined using the geographic information system. Initially, for each of climatic needs of canola, one separate layer was virtually prepared with the help of the geographic information system. These layers included the layer of rainfall throughout the growth period, layer of frost, the layers of mean minimum absolute temperature, mean maximum absolute temperature, mean maximum temperature and mean temperature of the growth period, the layer of sunshine hours and physiographical layers of the earth such as topography, slope, land use and soil depth. Finally using a combined weight factor model, the regions favorable to canola seed cultivation in Ardabil province were mapped. Based on the analysis of the final maps, the land area of the province suitable for cultivation was determined: 9.85% without any limitation, 18.36% with little restriction, 16.70% with moderate restriction, 30.66% with fairly severe restriction and 23.43% with very severe restriction. ER -