木质部栓塞化是木本植物对水分等环境因子的胁迫反应之一，从发现至今已有近８０年的研究历史。本文对近年来这一研究领域的几个热点作以综述，主要包括四个方面：（１）木质部栓塞的诱因及形成机理；（２）木质部栓塞的季节变化和日变化规律；（３）木质部栓塞脆弱性及其与植物耐旱性间的关系；（４）木质部栓塞恢复机理。并结合笔者的研究结果，提出了一些新的思路和观点。 The xylem embolization is one of the stress responses of woody plants to environmental factors such as water, and it has been nearly 80 years since its discovery. This article summarizes several hot topics in this field in recent years, including four aspects: (1) the causes and formation mechanism of xylem embolism; (2) the seasonal and diurnal variation of xylem embolization; (3) the xylem Embolism fragility and its relationship with plant drought tolerance; (4) xylem embolism recovery mechanism. Combined with the author’s research results, put forward some new ideas and ideas.