中国草地学报2025，Vol.47Issue(9)：82-94,13.DOI:10.16742/j.zgcdxb.20250039
内蒙古参考蒸散量对饱和水汽压差和温度的滞后响应
Hysteretic Response of Reference Evapotranspiration to Vapor Pressure Deficit and Temperature in Inner Mongolia
摘要
Abstract
As a fundamental component of regional water resource planning and management,reference evapotranspiration(ET0)requires a thorough investigation into the time-lag effects and synergistic interactions of different environmental variables for a comprehensive understanding.However,the response time of ET0 to vapor pressure deficit(VPD)and temperature and their influencing factors remains unclear.In this study,time-lag effects and their interactions for VPD,temperature(including maximum,minimum,and mean tempera-tures),Normalized Difference Vegetation Index(NDVI)on ET0 were analyzed using data from 107 meteoro-logical sites across Inner Mongolia during 2000-2020.The results indicated:ET0,VPD,temperature,and NDVI exhibited increasing trends over the study period.Notably,the time lag of ET0 in response to VPD was longer compared to air temperature,particularly for minimum temperatures in high-altitude regions.ET0 exhibited a stronger potential sensitivity to VPD compared to mean temperature,whereas the response to extreme low tem-peratures exceeded that to maximum temperature and VPD.an increase in NDVI was found to shorten the lag time of ET0 in response to air temperature,whereas it prolonged the lag time of ET0 in response to vapor pres-sure deficit.关键词
参考蒸散量/饱和水汽压差/归一化植被指数/极端温度/滞后响应Key words
Reference evapotranspiration/Vapor pressure deficit/Normalized difference vegetation index/Extreme temperature/Hysteresis分类
农业科技引用本文复制引用
刘璐,张圣微,周莹,何沁锶,李瑞燊..内蒙古参考蒸散量对饱和水汽压差和温度的滞后响应[J].中国草地学报,2025,47(9):82-94,13.基金项目
国家自然科学基金(52279017) （52279017）
内蒙古自治区高等学校创新团队计划(NMGIRT2313) （NMGIRT2313）
内蒙古自治区水利科技项目(NSK202405) （NSK202405）
