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Tentative Exploration of Soil Ecological System Quantitative Evaluation

QIAN Jin ping (College of Resources and Envivoment Sciences, Hebei Normal University ,Shijiazhuang 050016,China)  
Such basic index systems as soil erosion,soil pollution ,soil fertility,soil salinization are chosen to represent the quality of soil ecological system. The soil ecological systemis quantitatively evaluated with the theory of fuzzy mathematics.The evaluation methods and evaluation course are testified by taking Shijiazhuang as an example.
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