Device and method for measuring plant transpiration

Abstract

The invention discloses a plant transpiration measuring device and a method thereof, comprising a machine base and a transparent observation room, the observation room is movably arranged on the machine base, a power supply and an electronic weighing instrument are arranged on the machine base, and the The electronic weighing instrument is electrically connected to the power supply, the electronic weighing instrument is provided with a timer and a filter box, the filter box is provided with a first joint and a second joint, and the lower side of the observation room is provided with an opening surface , the upper side of the observation room is provided with a conical cover, the conical cover is connected with a connecting pipe, the connection between the conical cover and the connecting pipe is provided with an exhaust fan, and the exhaust fan is electrically connected with the power supply, so A first switch is provided between the exhaust fan and the power supply, the end of the connecting pipe far away from the conical cover is detachably connected to the first joint, the second joint is connected to an exhaust pipe, and the filter box is filled with a water-absorbing agent . The invention can measure the transpiration of normal growing plants, and the measured transpiration data is accurate.

Description

Technical field[0001]The present invention relates to the technical field of plant monitoring equipment, and more particularly to a plant transpiration amount measuring device and a method thereof.Background technique[0002]Transpiration is the process of disseminating from a water vapor state to the air from a vapor surface (mainly leaf) surface (mainly the leaves). The evaporation process of plant transpiration and physics is different. Transpiration is not only affected by the external environment, but also by the regulation and control of the plant itself, it is a complex physiological process, which has a certain difficulty in determination. Currently, the most Commonly used measurement means to use plant transpiration measuring instruments, plant transpiration measuring instruments have a variety of, such as Li-6400 photosynthetic assay system, CB-1101 photosynthetic transpiration assay system, CAF tree transpiration stream measuring system, weighing Steamer, etc., can be said ...

AI Technical Summary

Problems solved by technology

Plant transpiration is different from the evaporation process in physics. Transpiration is not only affected by external environmental conditions, but also regulated and controlled by the plant itself. Therefore, it is a complex physiological process, and it is difficult to measure. At present, the most The commonly used measurement method is to use plant transpiration measuring instruments to measure. There are many kinds of plant transpiration measuring instruments, such as Li-6400 photosynthesis measuring system, CB-1101 photosynthetic transpiration measuring system, CAF tree transpiration flow measuring system, weighing type It can be said that they have their own strengths, but they have not been widely recognized and widely used by relevant researchers.

Looking at these plant transpiration measuring instruments, it can only be used to measure single leaf transpiration, and the measured value is converted into branch or plant transpiration. The conversion process is complicated, the price is high, and the requirements for the measurement environment are high. , inconvenient operation, complex principle, difficult to understand and grasp, bulky, inconvenient to carry, etc.

[0003] For this reason, the patent application number CN201010196240.5 discloses a plant transpiration measurement device, which includes: an observation chamber, a condensation system, moisture collection and measurement components, and exhaust components; one end of the observation chamber is provided with an entrance, and the other end A container-shaped structure with an outlet, the outlet of the observation room is connected to one end of the cooling pipe of the condensation system, the other end of the cooling pipe is connected to the moisture collection and measurement part, and the cooling pipe is connected to an exhaust part; the bottom of the moisture collection and measurement part is equipped with a gravity measurement Parts; the measuring device is simple in structure, easy to make, easy to carry, low in price, convenient to operate and use, and has good measuring effect, and can directly measure the transpiration water consumption data of plant branches or plants, but there are also the following problems: this device When measuring the transpiration of plants, it is necessary to cut off the branches of the plants and then place them in the observation room to measure the transpiration of the plants. However, after the branches of the plants are cut off, the transpiration of the plants will be measured. Generally, the transpiration of plants will be weakened, resulting in Cannot accurately measure transpiration when plants grow normally

Images