文献类型：期刊文献

中文题名：库姆塔格沙漠东南部柽柳液流特征及其与气象因子的相关分析

英文题名：Characteristics of Tamarix chinensis sap flow in southeast of Kumtag desert and its correlation analysis with meteorological factors

作者：黄雅茹[1,2] 马迎宾[1,2] 李永华[3,4,5] 董雪[1,2] 段瑞兵[1,2] 张帅[1,2] 刘凤婵[6] 张晓燕[7]

第一作者：黄雅茹

机构：[1]中国林业科学研究院沙漠林业实验中心,内蒙古磴口015200;[2]中国林业科学研究院内蒙古磴口荒漠生态系统国家定位观测研究站,内蒙古磴口015200;[3]中国林业科学研究院荒漠化研究所,北京100091;[4]库姆塔格荒漠生态系统国家定位观测研究站,甘肃敦煌736200;[5]甘肃敦煌荒漠生态系统国家定位观测研究站,甘肃敦煌736200;[6]保定市水土保持试验站,河北保定071051;[7]四子王旗水利局,内蒙古乌兰察布011800

年份：2021

卷号：41

期号：9

起止页码：106-116

中文期刊名：中南林业科技大学学报

外文期刊名：Journal of Central South University of Forestry & Technology

收录：CSTPCD;;北大核心:【北大核心2020】；CSCD:【CSCD_E2021_2022】；

基金：中央级公益性科研院所基本科研业务费专项资金项目(CAFYBB2019MA004,CAFYBB2021MA005,CAFYBB2020ZE005);国家自然科学基金项目(32001374)。

语种：中文

中文关键词：库姆塔格沙漠;柽柳;液流;气象因子

外文关键词：Kumtag desert;Tamarix chinensis;sap flow;meteorological factors

分类号：S718.43

摘要：【目的】揭示库姆塔格沙漠东南部柽柳的水分传输过程,探究柽柳的耗水特性,为该地区柽柳生长及生理研究提供数据支撑,对该区域柽柳经营管理具有一定理论意义。【方法】利用PS-TDP8树木茎流监测系统对库姆塔格沙漠东南部柽柳的液流变化进行测定,采用相关分析及逐步回归法分析气象因子对柽柳液流的影响。【结果】柽柳茎干液流速率整体为“宽峰型”。夏季,液流速率最早启动,峰值最大,持续时间最长,日树干液流量最大。秋季,液流速率有最晚的启动时间。不同季节夜间有低值液流。液流速率均值夏季最大,秋季最小。春季,空气温度能单独解释73.1%的液流速率变化,三者共同解释78.3%的液流速率变化;夏季,太阳辐射能单独解释63.0%的液流速率变化,4个因子共同解释69.8%的液流速率变化;秋季,空气温度能单独解释73.3%的液流速率变化,2个因子共同解释液流速率变化的73.8%。春秋季液流主要受气温影响,太阳辐射是影响夏季柽柳液流速率的主导因子。【结论】柽柳液流速率可以通过回归方程估算。本研究结果为摸清干旱沙漠地区柽柳水分利用特性提供基础数据。
【Objective】In order to reveal the water transfer process of Tamarix chinensis in the southeast of Kumtag desert and explore the water consumption characteristics of Tamarix chinensis,and to provide scientific data support for the research on the growth and physiology of Tamarix in the area,it has a certain theoretical significance for the management of tamarisk in the region.【Method】The PS-TDP8 tree stem flow monitoring system was used to analyze the sap flow of Tamarix chinensis in the southeast of the Kumtag Desert.Correlation analysis and stepwise regression method were used to analyze the influence of meteorological factors on sap flow of Tamarix chinensis.【Result】The trend of sap flow change of Tamarix chinensis showed a word of“broad peak type”,Sap flow of Tamarix chinensis has the earliest start time,and the longest duration,with the maximum peak and maximum daily trunk fluid flow in summer.The sap flow has the latest start time with the minimum peak in autumn.Low-value sap flow at night in different seasons.The sap flow rate of Tamarix chinensis is the highest in summer and the smallest in autumn.In spring,air temperature alone can explain 73.1% of the flow rate change,and the three together explain 78.3% of the flow rate change.In summer,solar radiation alone can explain 63.0% of the flow rate change,and the four factors together explain 69.8% of the flow rate change.In autumn,air temperature alone can explain 73.3% of the flow rate change,and the two factors together explain 73.8% of the flow rate change.Air temperature is the dominant factor affecting the flow rate of Tamarix chinensis in spring and autumn,and solar radiation is the dominant factor affecting the flow rate of Tamarix chinensis in summer.【Conclusion】The water consumption of Tamarix chinensis can be estimated by regression model.The results of this study provide basic data for understanding the water use characteristics of tamarisk in arid desert areas.