江西农业学报2018，Vol.30Issue(5)：94-100,7.DOI:10.19386/j.cnki.jxnyxb.2018.05.19
浑善达克沙地及周边地区平均最高气温、最低气温及气温日较差的变化特征
Variation Characteristics of Mean Maximum Air Temperature,Minimum Air Temperature, and Diurnal Range of Air Temperature in Otindag Sandy Land and Its Surrounding Region
摘要
Abstract
Using the data of maximum air temperature, minimum air temperature, and mean air temperature at 18 weather stations of Otindag sandy land and its surrounding region during 1958～2015, the author detailedly analyzed the variation trend, mutability and periodicity of annual and seasonal mean maximum air temperature, minimum air temperature, and air temperature diurnal range in this region. The results indicated that: in recent 58 years, the annual mean air temperature, annual mean maxi?mum air temperature, and annual mean minimum air temperature in this region all revealed a rising trend, and the rising of annual mean minimum air temperature was the most significant. The diurnal range of annual air temperature showed a decreasing trend, and it occurred an abrupt change in 1972. Both seasonal mean maximum air temperature and seasonal mean minimum air tempera?ture showed a significant increasing trend, especially in spring and winter. The diurnal range of seasonal air temperature revealed an un-significant downtrend, and the downtrend in spring and winter was relatively obvious. In Otindag sandy land and its sur?rounding region, the diurnal range of air temperature was significantly positively correlated with the average wind speed and sun?shine duration, and was significantly negatively correlated with the rainfall. In this region, the periodicity of annual mean maxi?mum air temperature was not obvious, while the variation in annual mean minimum air temperature had the periodicity of 9 years and 25 years or so.关键词
最高气温/最低气温/气温日较差/影响因子/浑善达克沙地Key words
Maximum air temperature/Minimum air temperature/Diurnal range of air temperature/Impact factor/Otindag sandy land分类
农业科技引用本文复制引用
高涛涛,殷淑燕..浑善达克沙地及周边地区平均最高气温、最低气温及气温日较差的变化特征[J].江西农业学报,2018,30(5):94-100,7.基金项目
国家自然科学基金项目(41601020、41771110) （41601020、41771110）
陕西省自然科学基础研究计划项目(2017JM4026). （2017JM4026）
