Abstract:

Ningxia Province,China is rich in tourism resources and is rated as one of the 46 best tourism destinations in the world by the New York Times.Suitable tourism climate is an important factor for tourists to choose tourism destinations.Study of the suitable tourism period and the changes in the Ningxia tourism climate is of great practical significance to provide a scientific reference for the planning and design of Ningxia tourism.Based on the fact that most tourism activities take place mainly in the daytime,the suitable period for tourism climate is calculated on the basis of the daily temperature,relative humidity,wind speed,sunshine hours,and other meteorological data of five cities in Ningxia from 1980 to 2018 by using the THI,WCI,ICL,and CCI models.Further,the change trend of suitable period for tourism is analyzed.The results of the CCI model showed that the suitable period for tourism climate in Shizuishan,Yinchuan,Wuzhong,and Zhongwei is the same,namely from March 10 to November,lasting for 243 days.The tourism climate of Guyuan is suitable from March 27 to October 29,with a duration of 217 days.In Shizuishan,Wuzhong,and Zhongwei,the changes in the number of suitable days for tourism over the entire year are not significant.This is because of the increase in the number of suitable days at the beginning and end periods and the decrease in the number of suitable days in the low period.The number of suitable days for Yinchuan and Guyuan increased significantly over the entire year,mainly because of the greater increase in the number of suitable days at the beginning and the end of the year than the decrease  in suitable days in the low period.The significant increase in the number of suitable days at the beginning and the end for each region is due to the combined effect of temperature increase,decrease in relative humidity,and other factors.The significant decrease in the number of suitable days in the low period is due to the combined effect of temperature increase (e.g.,increased number of hot days),decrease in relative humidity,and other factors.At the beginning,the end,and in the low period,the significant change in air temperature has the greatest effect on the significant change in the number of suitable days (the change in the number of suitable days reaching more than 50%) and the influence weights of relative humidity,wind speed,and sunshine hours are different.The results indicate that the number of suitable days for tourism calculated by the WCI model is extremely large.We need to further explore whether this is because of the use of daytime meteorological elements,especially the higher daytime temperature than the daily average temperature.This model does not consider adverse factors such as rainstorms,sandstorms,and other disastrous weather as well as favorable factors such as rime,snow,and other meteorological effects.Therefore,these factors need to be further studied and supplemented.

Key words: tourism climate')">

tourism climate, suitable period, change trend, influence weight, Ningxia