TreeSense Wiki

Prerequisites: TreeSense Pulse: Electrical Resistance Measurement Explained A brief recap of resistance measurement in the Pulse Sensor Electrical resistance (measured between two conductive screws in the xylem) is a strong indicator of moisture content in the branch. Simply put: dry wood has high resistance, while moist wood has low resistance. However, resistance is also influenced by temperature and tree species-specific […]

The retention curve illustrates the relationship between water content and soil water tension. This relationship is characteristic of each soil type and is influenced by various factors. One of the most important factors is the pore size distribution. This is closely related to the soil type, which is why it is common to specify typical retention curves for different soil types. The figure shows retention curves for sand, silt [...]

Ein Boden setzt sich aus mineralischen Partikeln unterschiedlicher Größe zusammen. Je nach Partikelgröße werden drei Größenklasssen unterschieden: Ton (< 0,002 mm), Schluff (0,002 – 0,063 mm) und Sand (0,063 – 2 mm). Bei einer Partikelgröße über 2 mm spricht man von Grobboden. Die relativen Anteile von Sand, Schluff und Ton lassen sich im sogenannten Bodenartendreieck […]

When we talk about soil moisture, we are referring to the water content. This indicates how much water is in the soil. The water content can be specified in two different ways. The volumetric water content is the ratio of the volume of water to the total volume of the soil sample. The gravimetric water content is the ratio of the mass of water to the mass of the dry […]

A dendrometer is a scientific measuring instrument used to measure the diameter or circumference of a tree trunk over time. It is a key tool in forestry science, ecology, and climate research. A classic application is measuring the annual growth of a tree. This is often done using diameter tapes or mechanical tape dendrometers with an accuracy of […]

As part of a project to plant young trees in the Munich city area, the Schernthaner company took on the irrigation work. The company usually carries out weekly irrigation with around 100 liters per tree during the summer months (based on FLL: Recommendations for Tree Planting Part 1). In collaboration with TreeSense, the irrigation was to be optimized this time. Through the use of sensors [...]