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为探讨土壤特性和地形特征这2个最为核心的耕地资源限制因子影响下的可用于耕地的土地资源,在前人研究的基础上,综合考虑土壤类型及其性质和地形影响,以ArcGIS分析工具为平台,构建耕地资源识别模型,对锦西灌区内可用于耕地的土地进行识别分析。结果表明:在锦西灌区1 200.59km~2的土地中,568.33km~2适宜耕地,较适宜耕地的面积为5.92km~2,改良后适宜的面积为564.15km~2,仅62.19km~2不适宜耕地,不适宜耕地部分包括受土壤因素限制的34.19km~2和受地形影响的32.00km~2,综合考虑两方面的因素所得面积为62.19km~2。与传统的识别方法比较,本研究所构模型对最核心的限制因素进行综合考虑,可更全面、更客观、更精准的识别可用于耕地的土地资源。
Based on the previous studies, considering the types of soils, the nature of the soil and the impact of the terrain, the paper takes ArcGIS analysis tool As a platform, a cultivated land resource identification model was constructed and the land available for arable land in Jinxi Irrigation Area was identified and analyzed. The results showed that 568.33km ~ 2 was suitable for arable land in 1 200.59km ~ 2 of Jinxi Irrigation Area, the suitable arable land area was 5.92km ~ 2, and the suitable area for improvement was 564.15km ~ 2, only 62.19km ~ 2 Not suitable for arable land, part of unsuitable arable land includes 34.19km ~ 2 limited by soil factors and 32.00km ~ 2 affected by topography, taking the two factors into consideration, the area is 62.19km ~ 2. Compared with the traditional methods of identification, the model of this institute considers the core limits and considers the land resources available for arable land more comprehensively, objectively and accurately.