不同林龄胡杨液流特征及耗水量研究  

Study on Sap Flow Characteristics and Water Consumption of Populus euphratica at Different Forest Ages

作　　者：古丽米娜·吐尔孙江 陈启民 桑巴叶 Gulimina·Tursunjiang;Chen Qimin;Sang Baye(Institute of Afforestation and Sand Control Research,Xinjiang Academy of Forestry,Urumqi 830063,China;National Positioning Observation and Research Station of Xinjiang Tarim River Populus euphratica Forest Ecosystem,Bayingolin 841600,China;Xinjiang Field Scientific Observation and Research Station of Luntai Populus euphratica Forest Ecosystem,Bayingolin 841600,China)

机构地区：[1]新疆林科院造林治沙研究所,新疆乌鲁木齐830063 [2]新疆塔里木河胡杨林生态系统国家定位观测研究站,新疆巴音郭楞841600 [3]轮台胡杨林生态系统新疆野外科学观测研究站,新疆巴音郭楞841600

出　　处：《防护林科技》2024年第6期61-63,共3页Protection Forest Science and Technology

基　　金：阿克苏市自然资源局项目“阿克苏山水林田湖草沙一体化保护和修复工程关键问题和关键技术研究”(AKSSSXM2022620);2023年新疆维吾尔自治区林业发展补助资金项目(XJLYKJ-2023-03)。

摘　　要：为了解胡杨的蒸腾特征和生态适应机制,开展了不同林龄胡杨的液流速率及耗水量的研究,结果表明:不同林龄的胡杨在液流速率和耗水量上存在显著差异,其中,中龄林的液流速率最高,幼龄林和成熟林相对较低;幼龄林年均耗水量为7478.10 m^(3)·hm^(-2),中龄林为12424.65 m^(3)·hm^(-2),成熟林为7678.34 m^(3)·hm^(-2)。In order to understand the transpiration characteristics and ecological adaptation mechanism of Populus euphratica,the study on sap flow rate and water consumption of Populus euphratica at different ages was carried out.The results showed that there were significant differences in sap flow rate and water consumption of Populus euphratica at different forest ages,among which the sap flow rate of middle-aged forest was the highest,and the sap flow rate of young forest and mature forest was relatively low.The average annual water consumption was 7478.10 m^(3)·hm^(-2)in young forest,12424.65 m^(3)·hm^(-2)in middle-aged forest and 7678.34 m^(3)·hm^(-2)in mature forest.

关 键 词：胡杨 液流 年均耗水量 

分 类 号：S791.110.6[农业科学—林木遗传育种]