【摘要】 在对目前酿酒葡萄区划热量指标进行总结和分析的基础上,通过对几种热量指标的比较和我国气候特点的分析认为,以无霜期作为我国酿酒葡萄区划的热量指标,即以无霜期≥160 d(30年平均值,且在30年中无霜期<150 d的次数不超过3次)作为我国酿酒葡萄栽培的热量最低限(区划北界)是适宜的,比其他热量指标确定的区划界限更有实际应用价值。更多还原

【Abstract】 The zoning thermal index of grapevine at present was summarized and analyzed.Through comparison between several kinds of thermal indexes and analysis of China’s climate characteristics,frost-free period is considered to be a proper thermal index of climatic zoning for grapevine in China.Frost-free period,160 days or more,(30 annual mean values,and the occurence of frost-free period <150 days did not surpass 3 times in 30 years) is the lower thermal limit,which is suitable for the growth of grapevine in China.更多还原