调试法——一种农用土地适宜性评价中确定参评因子权重的方法

Debug Method——A Method for Determining the Weights of Involved Factors in the Natural Suitability Evaluation of Land for Agricultural Use

在玛纳斯县、奇台县和石河子市等地的农用土地评价工作实践中 ,提出了一种在农用土地 (自然 )适宜性评价中确定参评因子权重的方法———调试法。该方法是用控制样本对参试权重进行多次的检验、调整和比较 ,逐步选取出能够较好表达各参评因子区分土地适宜性差异能力的权重 (组 ) ,并将其作为最终的确权结果。

The weights of the involved factors in land evaluation are considered in many methods of evaluating the natural suitability of the land for agricultural use, so it is an important link to rationally determine the weights of the involved factors in land evaluation. In this paper, a debug method, a new method for determining the weights of the involved factors in land evaluation, is put forward based on the authors' relative work in Manas County, Qitai County, Shihezi City, etc. It is proved that the method is handy and effective. The principles of the debug method are mainly derived from the authors' ideas, among them the most important one is that a weight of an involved factor should be determined based on the factor's capability of distinguishing the suitability of the land for agricultural use in a comparable region, thus, the relations between the weights of the involved factors and the evaluation units may be statistical. The debug method includes two forms, i.e., the debug method A and B.