“武陵夜雨”的气候特征及资源价值分析

“Wuling Night Rain” Climatic Characteristics and Its Resource Value Analysis

【目的】武陵山区气候及生态条件特殊,是中国最大夜雨(当日20:00至次日8:00之间自然降落的雨水)分布区。研究"武陵夜雨"气候特点及资源价值,促进扶贫攻坚区武陵山区的经济发展和生态文明建设。【方法】通过国内外典型夜雨区比较分析,并综合考察武陵山区降雨机制、昼雨量及夜雨量。【结果】因中国西南气候锋移动路线与武陵山脉走向重合、南北气候锋交遇区与武陵山分布范围重合,再加上该地区山(峰)谷(河谷)高差形成显著"山谷风",共同促成了中国大面积夜雨区"武陵夜雨"的形成。【结论】武陵夜雨是武陵山区优良生态环境和丰富资源条件的坚实基础,有提高空气质量、提升农作物产量和品质、涵养优质旅游资源、促进传统经济发展等作用。重视武陵夜雨的研究和利用,应视为是发展中国西部经济和加强该地区生态文明建设的工作任务之一。

[Purposes]Wuling mountain area has special climate and ecological conditions and it is the largest region of＂night rain＂which is natural landing rain at night between eight and the next eight o＇clock.The research of climate features and resource value of＂Wuling night rain＂will help to the development of economy and ecology in Wuling poor areas.[Methods]Though comparing the different between home and abroad and researching the mechanism of rain,rain of day and rain of night,it is discovered that the southwest climate front moving route and trend of Wuling mountains coinciding,north and south climate front overlapping region and Wuling mountain range distribution overlapping,in addition Wuling mountain area of peak and valley by height difference formed＂valley wind＂,all contributed to the＂Wuling Night Rain＂formation.It is a China＇s large area of＂night rain＂region.[Findings]＂Wuling night rain＂is a solid foundation for good ecological environment and rich resource conditions in Wuling mountain area.It has an effect in improving air quality,enhancing soil moisture,improving crop yield and quality,conserving excellent tourist resources,promoting traditional economy and so on.[Conclusions]Focusing on the study and use of＂Wuling night rain＂,contribute to economic production and ecological civilization construction in western China region.