The GM(1,1)grey model was used to simulate and divide the harvest years of black-skinned sugarcane yield in Wengyuan County during 2006-2021.Based on the meteorological observation data of Wengyuan County during the s...The GM(1,1)grey model was used to simulate and divide the harvest years of black-skinned sugarcane yield in Wengyuan County during 2006-2021.Based on the meteorological observation data of Wengyuan County during the same period,the impact of major meteorological disasters such as drought,flood and frost in the growth period of black-skinned sugarcane was analyzed.It is believed that the instability of black-skinned sugarcane yield was affected by comprehensive meteorological factors.It is necessary to master the characteristics of local meteorological disasters,conduct scientific cultivation according to local conditions,and continuously improve the meteorological service level of black-skinned sugarcane cultivation.展开更多
Based on the data of the national station in Wengyuan County from 1975 to 2024,the tourism climate comfort of Wengyuan County was analyzed and evaluated by using temperature-humidity index,wind chill index,holiday cli...Based on the data of the national station in Wengyuan County from 1975 to 2024,the tourism climate comfort of Wengyuan County was analyzed and evaluated by using temperature-humidity index,wind chill index,holiday climate index,and linear trend analysis.The results show that in Wengyuan County,people felt most comfortable in April,May,October,and November,and the holiday climate index in each month was over 63,reaching or exceeding the"suitable"level,and there were no"acceptable"or lower levels.Spring and autumn were the best time for people to visit Wengyuan.The temperature-humidity index in Wengyuan County rose significantly at a tendency rate of 0.19/10 a,while wind chill index dropped significantly at a tendency rate of 2.9/10 a.The annual average number of comfortable days in Wengyuan was up to 164 d,accounting for over 44.9%of the total number in the whole year.It tended to decline at a tendency rate of-3.9/10 a.The annual average number of uncomfortable cold days and uncomfortable hot days showed an upward trend at a tendency rate of 1.5/10 a and 1.7/10 a,respectively.HCL and the number of days with unfavorable climate tended to decline slowly at a tendency rate of-0.236/10 a and-0.248/10 a,respectively.The number of days with suitable climate showed an upward trend at a tendency rate of 1.2/10 a,while the number of days with general and acceptable climate showed a slow downward trend at a tendency rate of-1.96/10 a.展开更多
Based on the monthly average temperature data from Wengyuan national meteorological observation station in Guangdong Province from 1961 to 2018, statistical methods were used for the trend analysis, mutation detection...Based on the monthly average temperature data from Wengyuan national meteorological observation station in Guangdong Province from 1961 to 2018, statistical methods were used for the trend analysis, mutation detection and wavelet analysis of annual average temperature and seasonal average temperature from 1961 to 2018. The results show that the annual, summer, autumn and winter average temperature in Wengyuan all showed a warming trend from 1961 to 2018, among which winter average temperature contributed the most to the increase of annual average temperature, and the increasing trend of average temperature in spring did not pass the significance test. The annual, summer, autumn and winter average temperature in Wengyuan changed significantly in 1994, 1981, 1996 and 1990, respectively. Wavelet analysis shows that the annual average temperature in Wengyuan had periodic oscillations on the time scales of 12-13, 24-25 and 6 years.展开更多
Based on the observation data of temperature in Wengyuan County from 1981 to 2021,the changing trends of annual average temperature,annual average maximum and minimum temperature,annual extreme maximum and minimum tem...Based on the observation data of temperature in Wengyuan County from 1981 to 2021,the changing trends of annual average temperature,annual average maximum and minimum temperature,annual extreme maximum and minimum temperature,seasonal and monthly average temperature in Wengyuan County in the past 41 years were analyzed.The results show that the annual average temperature,annual average maximum and minimum temperature,and annual extreme maximum and minimum temperature in Wengyuan County in the past 41 years showed a fluctuating upward trend,which is consistent with the changing trend of global climate;the temperature rose obviously in winter and spring and slightly in summer;January was the coldest,while July was the hottest,and the average temperature from April to October was above 20.0℃.In general,the annual average temperature in Wengyuan County changed significantly in 1997.It was relatively cold before 1997 and became relatively warm after 1997.展开更多
Tobacco is a economic pillar in Nanxiong City,and its yield and quality are closely related to climatic conditions.By analyzing the relationship between the growth of tobacco and climatic conditions,and comparing with...Tobacco is a economic pillar in Nanxiong City,and its yield and quality are closely related to climatic conditions.By analyzing the relationship between the growth of tobacco and climatic conditions,and comparing with actual climate in Nanxiong,the best climatic suitability for tobacco planting in Nanxiong was found out.Through comparative analysis between yield,quality of tobacco in recent years and climatic condition in Nanxiong,it was obtained that stable temperature,moderate rainfall and sufficient sunshine were the key meteorological factors to ensure the yield and quality of tobacco,while meteorological disasters such as hail and rainstorm could reduce or even eliminate the yield of tobacco.展开更多
文摘The GM(1,1)grey model was used to simulate and divide the harvest years of black-skinned sugarcane yield in Wengyuan County during 2006-2021.Based on the meteorological observation data of Wengyuan County during the same period,the impact of major meteorological disasters such as drought,flood and frost in the growth period of black-skinned sugarcane was analyzed.It is believed that the instability of black-skinned sugarcane yield was affected by comprehensive meteorological factors.It is necessary to master the characteristics of local meteorological disasters,conduct scientific cultivation according to local conditions,and continuously improve the meteorological service level of black-skinned sugarcane cultivation.
文摘Based on the data of the national station in Wengyuan County from 1975 to 2024,the tourism climate comfort of Wengyuan County was analyzed and evaluated by using temperature-humidity index,wind chill index,holiday climate index,and linear trend analysis.The results show that in Wengyuan County,people felt most comfortable in April,May,October,and November,and the holiday climate index in each month was over 63,reaching or exceeding the"suitable"level,and there were no"acceptable"or lower levels.Spring and autumn were the best time for people to visit Wengyuan.The temperature-humidity index in Wengyuan County rose significantly at a tendency rate of 0.19/10 a,while wind chill index dropped significantly at a tendency rate of 2.9/10 a.The annual average number of comfortable days in Wengyuan was up to 164 d,accounting for over 44.9%of the total number in the whole year.It tended to decline at a tendency rate of-3.9/10 a.The annual average number of uncomfortable cold days and uncomfortable hot days showed an upward trend at a tendency rate of 1.5/10 a and 1.7/10 a,respectively.HCL and the number of days with unfavorable climate tended to decline slowly at a tendency rate of-0.236/10 a and-0.248/10 a,respectively.The number of days with suitable climate showed an upward trend at a tendency rate of 1.2/10 a,while the number of days with general and acceptable climate showed a slow downward trend at a tendency rate of-1.96/10 a.
文摘Based on the monthly average temperature data from Wengyuan national meteorological observation station in Guangdong Province from 1961 to 2018, statistical methods were used for the trend analysis, mutation detection and wavelet analysis of annual average temperature and seasonal average temperature from 1961 to 2018. The results show that the annual, summer, autumn and winter average temperature in Wengyuan all showed a warming trend from 1961 to 2018, among which winter average temperature contributed the most to the increase of annual average temperature, and the increasing trend of average temperature in spring did not pass the significance test. The annual, summer, autumn and winter average temperature in Wengyuan changed significantly in 1994, 1981, 1996 and 1990, respectively. Wavelet analysis shows that the annual average temperature in Wengyuan had periodic oscillations on the time scales of 12-13, 24-25 and 6 years.
文摘Based on the observation data of temperature in Wengyuan County from 1981 to 2021,the changing trends of annual average temperature,annual average maximum and minimum temperature,annual extreme maximum and minimum temperature,seasonal and monthly average temperature in Wengyuan County in the past 41 years were analyzed.The results show that the annual average temperature,annual average maximum and minimum temperature,and annual extreme maximum and minimum temperature in Wengyuan County in the past 41 years showed a fluctuating upward trend,which is consistent with the changing trend of global climate;the temperature rose obviously in winter and spring and slightly in summer;January was the coldest,while July was the hottest,and the average temperature from April to October was above 20.0℃.In general,the annual average temperature in Wengyuan County changed significantly in 1997.It was relatively cold before 1997 and became relatively warm after 1997.
文摘Tobacco is a economic pillar in Nanxiong City,and its yield and quality are closely related to climatic conditions.By analyzing the relationship between the growth of tobacco and climatic conditions,and comparing with actual climate in Nanxiong,the best climatic suitability for tobacco planting in Nanxiong was found out.Through comparative analysis between yield,quality of tobacco in recent years and climatic condition in Nanxiong,it was obtained that stable temperature,moderate rainfall and sufficient sunshine were the key meteorological factors to ensure the yield and quality of tobacco,while meteorological disasters such as hail and rainstorm could reduce or even eliminate the yield of tobacco.
