压砂地生产力评价的影响因素较多,此次评价在自然资源条件一定的情况下,以宁夏中部干旱地区为研究区域,研究不同地域社会经济条件差异化条件下的压砂地生产力评价指标体系。压砂地生产力评价的指标主要考虑压砂地年限、水利化水平、化学化水平、农业机械化水平和耕地现有人口承载量5个指标,采用TI指数模型进行压砂地生产力评价,并划分相应的评价等级。通过分析得出,压砂地西瓜的产量Y和评价指数TI之间存在线性相关关系Y=1 261.5TI+566.18,即TI指数模型建立的指标体系可以较好的对压砂地生产力进行评价。 There are many influencing factors on the evaluation of productivity of sandstorm area. Under the condition of certain natural resources, this study takes the arid area of ​​central Ningxia as the research area to study the index system of productivity evaluation of sandstorm under different social and economic conditions. The index of productivity evaluation of sandstone mainly considers the five indexes of age, water conservancy level, chemical level, agricultural mechanization level and current population carrying capacity of the cultivated land. TI productivity index is used to evaluate the productivity of sand land and the corresponding evaluation grades . The results showed that there was a linear correlation between yield Y and evaluation index TI of sandy soil watermelon Y = 1 261.5TI + 566.18, that is, the index system established by TI index model could evaluate the productivity of sandy soil better.