气象研究与应用2025，Vol.46Issue(1)：109-114,6.DOI:10.19849/j.cnki.CN45-1356/P.2025.1.15
土壤体积含水率特征分析及其与气象因子的关系
Characterization of soil volumetric water content and its relationship with meteorological factors
摘要
Abstract
The wavelet transform method was used to analyse the time series data of soil volumetric water content at different depths from 2021 to 2023 in Wuming area,Guangxi,to explore its periodicity characteristics and its correlation with meteorological factors(temperature,relative humidity and precipitation).The results showed that the soil volumetric water content had significant main cycles in short,medium and long time scales,and the cycle in long time scale gradually increased with the increase of soil depth,and the soil volumetric water content tended to stabilise.50 cm depth was the intermediate active layer,and the duration of the cycle appeared to have aturning point in the 50 cm layer,which became shorter and then longer.The top layer of soil(10 cm and 20 cm)showed strong cyclicity in medium time scale,while the deep soil(80 cm,100 cm)had more significant periodicity in the long time scale.The meteorological factor that had the largest positive correlation with volumetric soil water content at 10 cm was precipitation,followed by relative humidity,while temperature had the smallest effect and a negative correlation.The effect of meteorological factors on soil water content was more significant at long time scales.关键词
土壤体积含水率/小波变换/周期性Key words
soil volumetric water content/wavelet transform/periodicity分类
农业科技引用本文复制引用
李欣欣,周坤论,邹哲馨,李强..土壤体积含水率特征分析及其与气象因子的关系[J].气象研究与应用,2025,46(1):109-114,6.基金项目
广西壮族自治区气象技术装备中心科研项目 （）
