臭椿树干液流和直径微变化对土壤水分的响应

研究不同水分条件下〔土壤体积含水量分别为10%~15%(W1),15%~20%(W2),20%~25%(W3),25%~30%(W4)4种水分处理〕臭椿的树干液流和树干径向变化特征及其与气象因子的关系,为深入了解臭椿水分利用策略和科学制定臭椿水分管理措施提供科学依据。采用热扩散式探针法(TDP)对臭椿树干液流进行连续观测,使用树干径向变化记录仪持续监测臭椿树干微变化,并同步监测相关环境因子的变化。

This study investigates the characteristics of stem sap flow and stem radial variation of Ailanthus altissima under four soil water treatments, specifically with soil volumetric water content of 10%–15% (W1), 15%–20% (W2), 20%–25% (W3), and 25%–30% (W4), as well as their correlations with meteorological factors, aiming to provide a scientific basis for in-depth understanding of the water use strategy of Ailanthus altissima and the scientific formulation of its water management measures. The thermal dissipation probe (TDP) method was employed to continuously observe the stem sap flow of Ailanthus altissima, a stem radial variation recorder was used to continuously monitor the micro-changes of the tree stems, and the changes of relevant environmental factors were synchronously monitored.