[1]黄雅茹,马迎宾,辛智鸣,等. 柽柳不同季节树干液流特征及其与土壤含水量及土壤温度的关系[J].西北林学院学报,2021,36(5):1-10.[doi:10.3969/j.issn.1001-7461.2021.05.01]
　HUANG Ya-ru,MA Ying-bin,XIN Zhi-ming,et al. Flow Characteristics of Tamarix chinensis Tree Trunk Fluid in Different Seasons and the Relationships with Soil Water Content and Soil Temperature[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2021,36(5):1-10.[doi:10.3969/j.issn.1001-7461.2021.05.01]
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 柽柳不同季节树干液流特征及其与土壤含水量及土壤温度的关系()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第36卷
期数:
2021年第5期
页码:
1-10
栏目:
出版日期:
2021-09-30

文章信息/Info

Title:
 Flow Characteristics of Tamarix chinensis Tree Trunk Fluid in Different Seasons and the Relationships with Soil Water Content and Soil Temperature
文章编号:
1001-7461(2021)05-0001-10
作者:
 黄雅茹1; 马迎宾1; 辛智鸣1; 罗凤敏1; 刘湘杰1; 李永华2; 3; 4*; 张雅楠5
 （1.中国林业科学研究院 沙漠林业实验中心/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；2.中国林业科学研究院 荒漠化研究所，北京 100091；3.库姆塔格荒漠生态系统国家定位观测研究站，甘肃 敦煌 736200；4.甘肃敦煌荒漠生态系统国家定位观测研究站，甘肃 敦煌 736200；5.内蒙古自治区水文与水资源中心，内蒙古 呼和浩特 010010）
Author(s):
 HUANG Ya-ru1; MA Ying-bin1; XIN Zhi-ming1; LUO Feng-min1; LIU Xiang-jie1; LI Yong-hua2; 3; 4*; ZHANG Ya-nan5
 (1.Experimental Center of Desert Forestry,Chinese Academy of Forestry,Inner Mongolia Dengkou Desert Ecosystem National Observation Research Station,Dengkou 015200,Inner Mongolia,China; 2.Institute of Destertification Studies,Chinese Academy of Forestry,Beijing 100091,China; 3.National Forestry Bureaus Kumtage Desert Ecosystem Location Research Station,Dunhuang 736200,Gansu,China)
关键词:
 ; 柽柳; 树干液流; 库姆塔格沙漠; 林地土壤
Keywords:
Tamarix chinensis;  sap flow;  Kumtag Desert;  forest soil
分类号:
S718.43
DOI:
10.3969/j.issn.1001-7461.2021.05.01
文献标志码:
A
摘要:
 为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，本研究利用PS-TDP8树木茎流监测系统对柽柳的树干液流速率进行测定，分析土壤因子与液流速率在不同季节的差异。结果表明，夏季树干液流的启动时间最早，为7:20，峰值最大（6.93 cm·h-1），春季启动时间为7:40，峰值为6.46 cm·h-1，秋季启动时间最晚，为8:40，峰值最小（4.22 cm·h-1）。在日尺度上，春、夏、秋季柽柳树干液流速率与土壤含水量及土壤温度呈正相关，土壤温度分别单独能解释61.1%、65.6%、64.0%的树干液流变化，土壤含水量与土壤温度分别共同能解释73.4%、74.1%、76.9%的树干液流变化。在小时尺度上，春、夏、秋季树干液流与20、50 cm层土壤含水量及土壤温度呈显著负相关，50 cm层土壤温度是影响树干液流的主导因子。本研究建立了不同季节柽柳液流速率与土壤因子之间的回归方程，能够较好地解释不同季节树干液流速率变化，为柽柳树干液流速率预测与耗水量估算提供了很好的途径，明确了在不同季节通过土壤因子估算柽柳树干液流速率的可行性，可为制定水分管理措施提供参考。
Abstract:
 In order to reveal the water transport process and water consumption characteristics of Tamarix chinensis occurring in the southeast part of Kumtag Desert,in this study,the flow rate of T.chinensis trunk sap was measured by the PS-TDP8 system.The relationships between sap flow and soil factors in different seasons were analyzed.The results showed that the sap flow of T.chinensis trunk had the earliest start time (7:20 a.m.) in summer with the highest peak value (6.93 cm·h-1).The start time in spring was 7:40 a.m.with the peak value of 6.46 cm·h-1.In autumn,the start time was the latest (8:40 a.m.) with the smallest peak value (4.22 cm·h-1).On a daily scale,the flow rate was positively correlated with soil water content and soil temperature in spring,summer and autumn.Soil temperature alone could explain 61.1%,65.6% and 64.0% of the sap flow changes in spring,summer and autumn,respectively,soil water content and soil temperature together could explain 73.4%,74.1% and 76.9% of sap flow changes,respectively.On an hourly scale,the sap flow in the three seasons was significantly and negatively correlated with the soil moisture content and soil temperature in the 20 and 50 cm soil layers.Soil temperature of 50 cm layer was the dominant factor affecting sap flow.Regression equations between the sap flow rate and soil factors in different seasons were established,which could better explain the changes of the sap flow rates in different seasons,and provide a good way to predict the sap flow rate and water consumption of the T.chinensis.The results also indicated that the estimation of the sap flow rate by soil factors in different seasons was feasible.This study can provide a reference for formulating water management measures.

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备注/Memo

备注/Memo:
 收稿日期：2020-07-29修回日期：2021-03-10
基金项目：中央级公益性科研院所基本科研业务费专项资金项目（CAFYBB2019MA004,CAFYBB2020ZE005，CAFYBB2021MA005）；国家自然科学基金（32001374）。
作者简介：黄雅茹，工程师，硕士。研究方向：荒漠化防治。E-mail：hu_angyaru@126.com
*通信作者：李永华，博士，副研究员。研究方向：干旱区生态学。E-mail：lyhids@caf.ac.cn
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