中国农业科技导报2025，Vol.27Issue(4)：239-249,11.DOI:10.13304/j.nykjdb.2023.0818
不同径级沙柳液流特征及其对环境因子的响应
Sap Flow Characteristics of Different Diameter Classes of Salix psammophila and Its Response to Environmental Factors
摘要
Abstract
To explore the sap flow characteristics of Salix psammophila with different diameter classes and its relationship with environmental factors,the sap flow rate of Salix psammophila was continuously monitored by plant sap flow meter(EMS62),and the meteorological factors and soil factors were monitored simultaneously by small weather station(HOBO U30)and water potential sensor(TEROS 21).The results showed that the diurnal variation of sap flow rate at each diameter class showed a'single peak'curve.With the change of time,the flow rate of>10 mm diameter class increased first and then decreased,while the flow rate of≤10 mm diameter class decreased continuously,and the start-up and end time of flow were different.The sap flow rate of Salix psammophila in sunny day was higher than that in rainy day.The change of sap flow in sunny days showed'single peak'curve,and the change of sap flow in rainy days showed'single peak'or'double peak'.Solar radiation was the primary factor affecting the change of Salix psammophila sap flow.With the expansion of time scale,the interpretation rate of sap flow change decreases,while the number of affected factors increased.In conclusion,during the growing season,the sap flow of Salix psammophila increased with the increase of diameter class,but there were differences in the sap flow changes of different diameter classes.关键词
沙柳/环境因子/不同径级/液流Key words
Salix psammophila/environmental factor/different diameter classes/sap flow分类
林学引用本文复制引用
刘文娟,张世纪,陈宏伟,杨建军,韩兆敏,裴志永..不同径级沙柳液流特征及其对环境因子的响应[J].中国农业科技导报,2025,27(4):239-249,11.基金项目
国家自然科学基金地区科学基金项目(52069018) （52069018）
内蒙古自治区科技重大专项(2020ZD0009). （2020ZD0009）
