辽宁桓龙湖山地冰葡萄威代尔种植的气候适宜性分析

根据中国地面气候资料日值数据，结合实地调研、观测和数据处理结果，认为辽宁桓龙湖山地因其独特的地理条件形成了适宜冰葡萄种植的特殊的冷湿区域小气候，基本上符合了冰葡萄生长所需的条件．桓龙湖山地年平均气温、年平均降水、每年稳定低于-8℃的起始日期及持续天数、以-2℃作为冰葡萄威代尔（Vidal）无霜冻期的标志性温度条件的无霜冻期、≥10℃活动积温、桓龙湖山地7、8、9月份3个月的月均温总和、最热月（7月或8月）月均温以及各月气候指标极值的变化均符合冰葡萄威代尔的生长指标并适合广泛种植．

Climate Suitability Analysis on the Planting of Vidal Ice-grape on the Huanlonghu Mountains in Liaoning Province

The major data source of the present study is Chinese Ground Daily Climate Data Collection （ Huanren County, 1952-2001 ） , adding some on the spot observation. And by proper mathematical analysis, we come to the conclusion that the cold and humid microclimate formed in the Huanlonghu Mountains of Liaoning province can provide a perfect place for the planting of Vidal ice-grape. This is really rare even we compare globally. To be more particular, it is found that in the study area many climatic factors, such as the annual mean temperature ＆ precipitation, the start dates and consecutive days with temperature above - 8 ℃, the frost free period which takes - 2 ℃ as lowest temperature according to the specific need of Vidal ice-grape, the ≥ 10 ℃ active accumulated temperature within a year, the total amount of temperature of July, August and September, the mean temperature of hottest month （July or August）, and even the change of other climatic extremes, all match well with the growing indexes of Vidal ice-grape, and it is even safe to say that far-ranging planting of the species in the region would be acceptable.