丽江玛咖种植海拔标准加权灰色局势理论实证分析

Empirical Analysis of Weighted Grey Situation Theory for the Planting Altitude Standard in Lijiang Maca

普遍观点认为,玛咖适合种植在海拔3 000 m以上的区域,但仅凭经验判断未免有些片面。本研究引入加权灰色局势决策理论,克服了概率论分析方法的不足,运用综合测度的大小更全面、更合理地对对策进行排序。综合测度表明:种植在海拔3 000 m以上地区的玛咖,其综合测度均在0.600 0以上;种植在海拔3 000 m以下地区的玛咖,其综合测度值均在0.600 0以下;这一结果与多年种植玛咖的经验相吻合。加权灰色局势决策理论成功运用于玛咖选地,填补了以往仅仅从生产实践判断玛咖适合种植的海拔高度的空缺。

It is the scholars unilateral conclusion that maea （Lepidittm meyenii Walp. ） is suitable tor planting in the area more than 3 000 meters. In this study, we introduced the weighted grey situation decision theory to overcome the deficiency of the probability theory analysis method, the measure value on comprehensive effects was more complete and reasonable. The measure value of comprehensive effects results showed that, the comprehensive evaluation value of maca grown in more than 3 000 me- ters was higher than 0. 600 0, on the contrary, the comprehensive measure was less than 0. 600 0. The calculated data showed good agreement with the years experience. The method is successfully used in maca selection, fill in the past only from the production practice judgment maca is suitable for growing in the altitude of the vacancy.