Plant transpiration measuring device and method thereof

Abstract

The invention discloses a plant transpiration measuring device and a method thereof. The device comprises a base and a transparent observation chamber, the observation chamber is movably arranged on the base, a power supply and an electronic weighing instrument are arranged on the base, the electronic weighing instrument is electrically connected with the power supply, a timer and a filter box arearranged on the electronic weighing instrument, a first joint and a second joint are arranged on the filter box, an opening surface is arranged in the lower side of the observation chamber, a conicalcover is arranged in the upper side of the observation chamber, the conical cover is communicated with a connecting pipe, an exhaust fan is arranged at the joint of the conical cover and the connecting pipe, the exhaust fan is electrically connected with a power source, a first switch is arranged between the exhaust fan and the power source, the end, away from the conical cover, of the connectingpipe is detachably connected with a first connector, a second connector is communicated with an exhaust pipe, and a water absorbent is contained in the filter box. According to the invention, the transpiration of a normally growing plant can be measured, and the measured transpiration data is accurate.

Description

technical field [0001] The invention relates to the technical field of plant monitoring equipment, in particular to a plant transpiration measuring device and a method thereof. Background technique [0002] Transpiration is the process in which water is lost to the atmosphere in the form of water vapor from the stomata on the surface of living plants (mainly leaves). 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 syst...

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

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