摘要
利用热平衡包裹茎流仪Flow 32对毛乌素沙地2002年飞播的杨柴茎流速率进行定位观测,对杨柴生长期的茎流时间变化特征进行了分析。结果表明:不同月份茎流速率表现不同,晴天条件下,6月份呈现多峰曲线,7～9月份呈现双峰曲线;降雨后,6、7月份表现出双峰曲线,8月份表现出多峰曲线,9月份表现出单峰曲线。降雨后在0:00～5:00之间茎流速率高于晴天。6、7月和9月白天的液流速率小于降雨前晴天的茎流速率。8月份杨柴茎流速率明显高于其他月份。
The stem sap flow of Hedysarum fruiticosum var.mongolicum by air seeding in 2002 in Mu Us Sandy Land was measured by means of Flow 32,and the changing features of stem sap flow were analyzed.The results showed that there were different stem sap flow rates in different months,during the vigorous growth period of the sunny days,the stem sap flow presented as single peak curve in June,bimodal curve in July to September.After rainfall,the stem sap flow showed bimodal curve in June and July,multi peak curve in August,single peak curve in September.The stem sap flow rate between 0:00-5:00 after rainfall was higher than that of sunny days.In June,July and September,the stem sap flow rate during the day was less than that before the rainfall.The stem sap flow rate in August was higher than that of other months.
作者
洪光宇
王晓江
张雷
高孝威
刘果厚
李卓凡
李梓豪
郗雯
刘婷
HONG Guang-yu;WANG Xiao-jiang;ZHANG Lei;GAO Xiao-wei;LIU Guo-hou;LI Zhuo-fan;LI Zi-hao;XI Wen;LIU Ting(College of Grassland,Resources and Environment,Inner Mongolia Agricultural University,Hohhot 010011,China;Inner Mongolia Academy of Forestry Sciences,Hohhot 010010,China;Inner Mongolia Management Center of Tree Seedling Scientific Research Education and Demonstration Base,Hohhot 010010,China)
出处
《内蒙古林业科技》
2018年第4期35-38,共4页
Journal of Inner Mongolia Forestry Science and Technology
基金
内蒙古自治区科技计划项目(201601061)
2018年内蒙古自治区研究生科研创新项目
内蒙古自治区自然科学基金项目(2018MS03036)资助
关键词
杨柴
茎流
毛乌素沙地
Hedysarum fruiticosum var.mongolicum
stem sap flow
Mu Us Sandy Land
