广西大明山康养气候资源研究

Study on the climatic resources of health care in Daming Mountain

利用大明山天坪气象站2007—2020年逐日气温、降水量、风速、相对湿度、负(氧)离子浓度和上林国家基本气象站逐日日照时数,以及2000—2020年归一化植被指数(NDVI)资料,运用数理统计法、温湿指数法、风效指数法、最大合成法、像元线性分解法等方法分析广西大明山康养气候资源特征。结果表明:(1)广西大明山夏季平均气温21.3℃,适宜避暑,冬季会出现0℃以下的天气,可观冰雪,年降水量2 011.5 mm,降水丰沛、雨热同期,年平均日照时数1 485.9 h,光照充足,年平均风速2.8 m·s-1;5—9月气候舒适度等级为3级,人体感觉舒适,具备气候宜人、四季温和等康养气候资源;(2)广西大明山年平均负(氧)离子浓度2003个·cm-3,全年保持在I级标准以上,负(氧)离子浓度高,空气清新、洁净,森林覆盖率与绿化率98.9%,植被覆盖度87.6%,森林资源丰富,植被覆盖度高、生态环境好,非常适宜旅游康养。

Using the daily temperature,precipitation,wind speed,relative humidity,negative oxygen ion concentration at the Tianping Meteorological Station in Daming Mountain from 2007 to 2020,and the daily sunshine hours of Shanglin National Basic Meteorological Station,as well as the normalized vegetation index(NDVI)data from 2000 to 2020,the characteristics of health care climate resources in Daming Mountain of Guangxi were analyzed by using mathematical statistics,temperature and humidity index,wind effect index,maximum synthesis,pixel linear decomposition and other methods.The results show that:(1)the average temperature of Daming Mountain in Guangxi is 21.3℃in summer,suitable for summer vacation,and the weather below 0℃can be seen in winter,with considerable ice and snow.The annual precipitation is 2011.5 mm,which is abundant,,and the rain and heat coincide with the same period,and the annual average sunshine hours are 1485.9 hours,with sufficient sunlight and an average wind speed of 2.8 m·s-1.The climate comfort level from May to September is 3,which makes the human body feel comfortable,and it is equipped with recreational climate resources such as pleasant climate and mildness in four seasons;(2)the annual average concentration of negative oxygen ions in Daming Mountain is 2003 per cm-3,maintaining above the standard of Level 1 throughout the year.The concentration of negative oxygen ions is high,and the air is fresh and clean,and the forest coverage and greening rate is 98.9%,and the vegetation coverage is 87.6%,with abundant forest resources.Hence,high vegetation coverage and good ecological environment,indicates that Daming Mountain in Guangxi is very suitable for tourism and health.