The AHP model evaluation of farmland productivity in Xifeng District of Gansu Province | 甘肃省庆阳市西峰区耕地地力评价的层次分析模型
2012
Guo Tao, Longdong University, Qingyang (China), College of Information Technology | Fu Tonglin, Longdong University, Qingyang (China), College of Mathematics and Statistics
chinois. 根据耕地资源特点和耕地地力评价的原理，建立了甘肃省庆阳市西峰区耕地地力评价的层次分析模型。结果表明：各评价因子对庆阳市西峰区耕地地力的影响程度从大到小依次为：地貌类型、障碍层位置、土壤侵蚀程度、障碍层厚度、质地、有机质、剖面构型、耕层厚度、CEC、有效磷、质地构型。利用累加模型计算了耕地综合地力指数，绘制出西峰区耕地地力等级图，并根据相应的采样点位置，得到西峰区各乡镇不同等级耕地面积分布。所得结果将为推动西峰区耕地资源的合理配置，优化种植业生产结构，提高农产品竞争力起到积极的作用，同时也可为农村土地征用、转让、承包和补偿等费用的确定提供科学依据。
Afficher plus [+] Moins [-]anglais. According to the characteristics of cultivated land resource and the evaluation principle of cultivated land fertility, the farmland productivity evaluation analytical hierarchy process model (AHP) in Xifeng District of Gansu Province was built. The results showed that the influence degree order from big to small was physiognomy types, the barrier layer position, soil erosion degree, the barrier layer thickness, quality of a material, organic matter, profile configuration, the plough layer thickness, CEC, effective phosphorus and quality of a material configurations. The comprehensive indexes and grade map of cultivated land fertility were calculated by accumulation model. According to the corresponding figure sampling points, the cultivated land areas of different grade levels in different villages were obtained. The AHP evaluation results would be of benefit to the reasonable allocation of cultivated land resource in Xifeng District of Gansu Province.
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