Using GIS technology as the fundamental means of analysis, aiming at the existing problems, that is, the unitary of the base map choice in land assessment, the strong subjectivity in the outcome of division, the author chooses 150
regiment which located in Shihezi reclamation as the research region and evaluates the natural potential of soil. In
evaluation process, the
soil texture, soil salt salinity, soil organic matter, soil nutriment, soil
rapidly available phosphorus and insurance rate of irrigation water are all choised as evaluating factors .\;The result of evaluation shows that the tatal
quality area of 1st, 2nd and 3rd grade
cultivated land reached 12 831\^4 hm\+2,amounting 64.78% of all cultivated land, which means that the quality of cultivated land in 150 regiment is better. In different sub regions, the middle part has the highest cultivated land quality and the north part the lowest. In the restrictive factors of cultivated land, the most deficient is the organic matter and soil nutriment. The main limiting factors of cultivated land quality are soil texture, salt content, and soil rapidly available phosphorus, but their degrees are all weak, which shows that the difficulty in improving the soil is not very great.
More abstracts about the Natural Potential Evaluation of Oasis Cultivated Land in the 150 Regiment of Shihezi Reclamation, X