China's forest resources still have many problems in terms of quantity, quality, structure, and function. There is a certain gap with the world average level, and the gap is even larger compared with advanced forestry countries. There are many factors that determine this state, including the gap in the level of forest resource management. In fact, new tasks and requirements in the new era require new management and deployment, and it should be transformed from large-scale and extensive management to refined and scientific. Among them, the sap flow of forest trees should also be monitored long-term and continuously using a plant stem flow meter , and the forest area environment should be micro-adjusted to meet the needs of healthy and sustainable development of forest resources. It must be known that the stems and trunks of forest trees are the channels for water, inorganic salts, and organic substances produced by plants through photosynthesis. Just like the blood in the human body is transmitted through the blood officer, the transmission of our blood is oxygen and other substances that provide life energy for the human body. The speed of transmission is our concern. Among them, the stems of forest trees transport water and inorganic matter. At the same time, the rate of salt needs attention, which is why we want to use the plant stem flow meter. If you want to achieve the healthy and sustainable development of forest resources, you must be responsible for each tree to ensure that regional environmental conditions, such as water and soil organic matter, can continuously maintain its growth. The plant stem flow meter uses the heat dissipation probe method to measure the instantaneous stem flow density of the trunk, which can continuously observe the sap flow of the tree for a long time. It is a new tool for rapid quantitative analysis of the water permeability of plant roots and stems. It can measure branches, petioles, and Root hydraulic conductivity, pressure analysis of tree and crop roots, establishment of rhizome water transport model and transpiration model. It is an ideal tool for plant physiologists and agronomists to conduct research on rhizome growth, plant transpiration, plant stem flow, plant and soil water potential, and soil improvement. It can be said that the application of plant stem flow meters to the monitoring of forest health is an important step in the fine management of forest resources. Through the analysis of accurate data, micro-adjustments can be effectively carried out to meet the healthy growth of forest trees. IIIC QuFu RongBang Traffic Technology Co.,Ltd , https://www.rongbang.ltd