“四位一体”生态农业模式区域适宜性评价与实证研究

Evaluations and empirical studies on the regional suitability of "Four-in-One" eco-agricultural models

【目的】"四位一体"生态农业模式区域适宜性评价是"四位一体"生态农业模式合理布局的关键,建立"四位一体"生态农业模式区域适宜性评价模型,可以为国家和政府及相关部门进行"四位一体"生态农业模式布局提供科学的理论依据和决策支持。【方法】根据"四位一体"生态农业模式的区域影响因素和评价指标建立的原则、方法,从气候、能源、社会经济、水文因素4个层次中选取15个评价指标,构建了"四位一体"生态农业模式区域适宜性评价指标体系。运用层次分析法、专家咨询法确定了评价指标的权重,建立了评价模型。并以陕西省为例,对安塞县、陇县、西乡县发展"四位一体"生态农业模式区域适宜性进行了比较研究。【结果】3个地区发展"四位一体"生态农业模式区域适宜性顺序为陇县>西乡县>安塞县。【结论】研究结果与实际情况比较吻合,说明该评价理论具有一定的应用价值。

[Objective] The evaluation of regional suitability of the ＂Four-in-One＂ eco-agricultural model is the key of the reasonable layout for the ＂Four-in-One＂ eco-agricultural model. It provides a scientific theory base and decision support for the country and the government. [Method] 15 evaluation indexes from 4 catalogues-climate,energy, social economy, hydrology were chosen to set up the suitability evaluation index system according to it＇s principles. The weight of index was defined by Analytic Hierarchy Process（AHP） and Delphi and the appraising model was estalished. Taking Shaanxi Province as an exam- ple,a demonstration analysis was done to compare and study the way of developing the ＂Four-in-One＂ eco- agricultural model region suitability in Ansai County,Long County and Xixiang County. [Result] The results show that the adaptabilities of these three counties to develop the ＂Four-in-One＂ eco-agrieultural model is： Long〉Xixiang〉Ansai. [Conclusion] The results tally with the practical situations, and it illuminates that the evaluation theory is practical to some degree.