运用农业生产相关数据，链接研究区测土配方项目成果工作空间数据库，选定肥、水为评价因子，构建评价层次模型，拟合隶属函数，对凉州区水肥一体化适宜性区域进行评价研究。结果表明，高度适宜区域、适宜区域、勉强适宜区域对应的IFI得分区间分别为0.760 0～1.000 0、0.700 2～0.760 0、0～0.700 2，总的评价面积为146 732.80 hm2。其中高度适宜等级面积29 495.88 hm2，占耕地面积的20.1%；适宜等级面积103 158.92 hm2，占耕地面积70.3%；勉强适宜等级面积14 078.00 hm2，占耕地面积9.6%。表明区内耕地地力平衡，农田管理水平高，土壤水分供应有保障，水肥一体化适宜区域面积大，占总评价耕地面积的90.4%，可大力示范推广水肥一体化技术。

By using the related data of agricultural production， linking the workspace database of soil testing formula project results in the research area， selecting fertilizer and water as evaluation factors， constructing the evaluation hierarchy model， fitting the membership function， evaluating the suitability area of water and fertilizer integration in Liangzhou District. The results showed that the IFI score ranges of highly suitable area， suitable area and barely suitable area were 0.760 0~1.000 0， 0.700 2~0.760 0 and 0 ~ 0.700 2， respectively， and the total evaluation area was 146 732.80 hm2. Among them，the area of highly suitable grade was 29 495.88 hm2， accounting for 20.1% of the arable land；the suitable grade area was 103 158.92 hm2， accounting for 70.3%； the area of barely suitable grade was 14 078.00 hm2， accounting for 9.6%. It indicated that the cultivated land fertility was balanced， the management level of farmland was high， the supply of soil water was guaranteed， the integration of water and fertilizer was suitable for large area， accounting for 90.4% of the total cultivated land area， and the technology could be vigorously demonstrated and promoted.

S147.2；S275.6