长顺县紫王葡萄生长期气候适宜性分析

利用长顺县历史气象资料,对比分析气候因子和紫王葡萄生长期所需气候条件。结果表明,紫王葡萄在长顺县可以大面积推广种植,县的南部和中部为适宜区,县的北部为次适宜区;4—9月≥10℃有效积温为2 944~3 225℃·d、旬平均气温为13.5~23.5℃、降雨量为808~1 601 mm,能满足紫王葡萄生长期对温度和水分的需求;在浆果成熟期,7—9月平均日照时数达386.0 h,太阳能资源丰富,能有效满足紫王葡萄浆果成熟期对光照的需求;但在萌芽期、新梢生长期需注意防范冰雹灾害;在开花座果期需注意防范≥7 d的连阴雨过程;在浆果成熟期,气温日较差平均为7.3℃,不利紫王葡萄中糖等有机物的积累。

Climate Adaptability Analysis of Ziwang Grape Growing Period in Changshun County

Using the historical meteorological data of Changshun County,the climatic factors and the climatic conditions required for the growth of Ziwang grape were analyzed.The results showed that Ziwang grape could be widely planted in Changshun County,and the southern and central parts of the county were suitable areas,and the north of the county was sub-suitable area.From April to September,the effective temperature of ≥ 10 ℃ was 2 944-3 225 ℃·d,the ten-day average temperature was 13.5-23.5 ℃ and the precipitation was 808-1 601 mm,which all could satisfy the temperature and moisture demands of Ziwang grape in growing period;in the ripening stage of berries,the average sunshine time from July to September was 386.0 h,and the solar energy was abundant,which could effectively satisfy the demand for the light in the ripe stage of grape berry,however,in the germination period and the new shoot growth stage,guarding against hail disaster was necessary;it was necessary to guard against the continuous rain more than 7 days in the flowering fruit stage;in berries mature period,the average daily range of temperature was 7.3 ℃,which was not good for the accumulation of sugar and other organic compounds in the grape.