灰色关联度分析方法在三峡库区农林复合种植模式评价中的应用

Application of Grey Correlation Analysis in the Evaluation of Different Agroforestry Planting Patterns in the Three Gorges Reservoir Area

以三峡库区农林复合种植模式为试材,应用灰色系统的理论与方法,研究了不同农林复合种植模式下养分、持水量、径流量、土壤侵蚀量、经济效益5大指标.结果表明,当地传统的农作物关联度最小,可见这种模式的生态环境效益最差;连翘+银花+紫花苜蓿模式的关联度最大,说明该种植模式的生态环境效益和经济效益最好,是三峡库区种植业发展的最佳模式.该研究的结果可以为三峡库区农林复合种植模式评价提供理论依据.

In this article, we ap analyze the nutrients, water-ho plie ldin d systematic theory and methods of grey correlation analytical model to g capacity, runoff amount, soil erosion amount and economic benefits of in different agroforestry planting patterns in the Three Gorges Reservoir Area. The results suggest that the local traditional planting mode has the lowest correlation degree and poor ecological environmental benefits, while the multiple planting mode of Forsythia suspense-Lsatis indigotica Fort.-Medicago sativa L. has the highest correlation degree. This planting mode has the best ecological environmental benefits and yields good economic returns and is, therefore, the best mode of cropping sector development in the Three Gorges Reservoir Area.