A kind of facility soil salinity monitoring method and system

Abstract

The embodiment of the present invention provides a facility soil salinity monitoring method and system, based on facility crop root zone soil water content data and meteorological data to sense facility crop canopy meteorological data, and simulate and estimate the facility crop root zone soil salinity by numerical method Compared with the traditional soil salinity measurement method, the real-time monitoring of soil salinity in the root zone of crops is realized, and the cost of human resources and the capital cost of matrix salinity measurement equipment and consumables are saved. The method provided by the invention is used to monitor the dynamics of soil salinity changes in the root zone of facility crops in real time, and timely take salinity control measures, thereby avoiding the impact of salt damage on facility crops and providing technical support for high-quality and efficient output of facility vegetable crops. Real-time monitoring of the dynamic process of soil salinity changes in the root zone of protected vegetables can be realized, and it can provide support for formulating scientific and reasonable control strategies for soil root layer salinity of protected crops and realizing sustainable development of protected vegetable production.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of facility soil environment monitoring, and more specifically, to a method and system for monitoring facility soil salinity. Background technique [0002] Facility vegetable cultivation gets rid of the restriction of natural environment on vegetable production, and uses engineering technology to improve or create an environment suitable for the growth of vegetable crops in a local area, so as to obtain higher yield, quality and economic benefits, which belongs to a kind of high-efficiency agriculture. Compared with the traditional field vegetable cultivation, the environment in the facility is relatively closed, and it is in a state of high temperature and high humidity for a long time, and the water demand of the crops in the facility is relatively large. The water brought into the soil of the facility through irrigation will be lost to the air under the action of crop evapotranspirat...

AI Technical Summary

Problems solved by technology

Laboratory analysis and determination requires regular collection of soil samples from the root layer of crops. After cumbersome sample pretreatment, the residue method is used to directly measure the soil salt content or by measuring the conductivity of soil extracts with different soil-to-water ratios, and then convert For soil salinity, it is time-consuming and labor-intensive, and cannot be combined with Internet of Things technology to achieve real-time measurement

Compared with the method of measuring soil salinity in the laboratory, the in-situ measurement of the sensor is more convenient and easy to realize in-situ monitoring, but the measurement index of soil conductivity sensors on the market is mostly soil conductivity (Bulk soil electric conductivity), which is affected by soil moisture content, The influence of various factors such as soil salinity and soil organic matter cannot directly reflect the change of soil salinity.

Although a few soil salinity sensors based on graphite electrodes or capacitor technology can theoretically realize real-time monitoring of soil salinity, the above-mentioned sensors are expensive and are mostly used in scientific research experiments, and do not yet have the conditions for application in facility vegetable production

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