...] 中国大西部; 经济林; 栽培区划; 产品开发[gap=1234]Key words: Western China; non-timber forest; division of culture; exploitation of forest products...
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葡萄酒原产地域命名系统建立的基础因素主要有影响葡萄酒质量因素和葡萄栽培区划气候因素。
And it bases on those factors that influence the grape wine quality and the climate in grape cultivation area.
利用聚类分析方法中的最短距离法,探讨某种源经济性状向最理想性状选育的可能性,并为今后的良种选育和栽培区划提供重要依据。
The possibility of inverting from some characteristics to excellent ones is studied after applying cluster analysis, which is the basis of elite seed selection and plant division.
对其可靠性和精度进行了分析和检验,根据生产力等级相似性和差异显著性原理,进行了栽培区划,给出各栽培区、亚区的水热特征临界值指标。
According to the grade similarity and significance of difference of the productivity, we make cot the planting district of Picea Kdreainsis, and give out the hydro-thermal index.
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