摘要
热技术茎流计是一种能够连续直接测量植物蒸腾耗水的仪器。系统的介绍了热技术茎流仪的发展历程及基本工作原理,从植物液流速率的变化规律、影响树木蒸腾速率因子、边材液流速率的运输格局及时空变化规律、茎流计优点及应注意问题的4个方面介绍了热技术茎流计在植物蒸腾耗水方面的应用。随着热技术茎流计开始向精准化、普及化和系统化发展,热扩散茎流计凭借着操作简单、数据下载方便和可以较为准确的连续测定树干液流的特点,具有很好的发展前景。
Thermal methods sap flow gauge is one of the instruments to measure of plant transpiration water. This paper introduces the development course of thermal methods sap flow gauge and the basic working principle. From the four aspects, including the change law of stem sap flow, the factors affecting transpiration rate, the affecting factors of thermal methods sap flow gauge and its temporal and spatial variation and the advantages and problems of sap flow gauge, the application of thermal methods sap flow gauge in the measurement of plant transpiration water are introduced. With the development of heat technology in the direction of preci sion, universal and systematic, Thermal Dissipation Method has very good development prospects with the characteristics of continu- ous determination, simple operation and convenient data- download.
出处
《节水灌溉》
北大核心
2013年第12期70-73,78,共5页
Water Saving Irrigation
基金
国家自然科学基金资助项目(51109154
51249002)
高等学校博士学科点专项科研基金资助项目(20111402120006)
山西省科技攻关资助项目(20110311018-1)
山西省青年科技研究基金资助项目(2012021026-2)
关键词
热技术茎流计
蒸腾耗水
液流流速
树干茎流
thermal methods sap flow gauge
transpiration water
sap flow rate~ stem sap flow
