连山生态气候康养适宜性分析

Analysis of Suitability for Ecological Climate and Health Preservation in Lianshan

本文采用连山国家气象观测站1981~2022年常规气象数据、Landsat遥感数据等资料,选取人体舒适度气象指数(BCMI)、风效指数(K)、温湿指数(THI) 3项气候指数,负氧离子浓度、大气自净能力、遥感生态指数3项指标,对连山生态气候康养适宜性进行了分析。结果表明:连山区域内BCMI 4~6级概率均在60%以上,全年有256天等级为“最为舒适”或“大部分人感觉舒适”;年均K值为−245,为最舒适等级,舒适期天数为321天,无温热胁迫;THI值全年有8个月无温湿胁迫,最佳舒适期天数有弱增加趋势。年均负氧离子浓度达到3168个/cm3,达到了“特别清新”标准;年均大气自净能力为2.4吨/天/平方千米,空气质量指数(AQI)年均值为42,优良率为99.4%;RSEI指数呈增加趋势,面积优良等级占比由2015年的91.6%提升到2020年的93.9%。综合表明连山生态气候在休闲康养适宜性方面优势突出。

In this paper, the conventional meteorological data of the Lianshan National Meteorological Observatory Station from 1981 to 2022, Landsat remote sensing data, and other data were used to select three climate indices, namely human comfort meteorological index (BCMI), wind efficiency index (K), and temperature humidity index (THI), as well as negative oxygen ion concentration, atmospheric self-purification capacity, and remote sensing ecological index to analyze the suitability for ecological climate and health preservation in Lianshan. The results show that the probability of BCMI levels 4 to 6 in the Lianshan area is above 60%, and there are 256 days throughout the year when the level is “most comfortable” or “most people feel comfortable”;the average annual K value is −245, which is the most comfortable level, with a comfortable period of 321 days and no temperature stress;the THI value has 8 months of no temperature and humidity stress throughout the year, and the optimal comfortable period days have a weak increasing trend. The average annual concentration of negative oxygen ions reaches 3168 per cm−3, reaching the “particularly fresh” standard;the annual average atmospheric self-purification capacity is 2.4 t∙d−1∙km−2, the annual average air quality index (AQI) is 42, and the excellent rate is 99.4%;the RSEI index is showing an increasing trend, with the proportion of areas with excellent grades increasing from 91.6% in 2015 to 93.9% in 2020. Overall, the ecological climate of Lianshan has outstanding advantages in terms of suitability for leisure and health preservation.