Energy-saving rice field irrigation simulated device and method considering water balance factors

Abstract

The invention discloses an energy-saving rice field irrigation simulated device and method considering water balance factors. The device comprises lysimeter, a water supplement bottle, a water permeable pipe, a soil water content data acquisition system, a first water level gauge, a second water level gauge, a pluviograph, a control center, a positioning water tank and an evaporating dish, plantsare planted on the lysimeter, the lysimeter is connected with the soil water content data acquisition system, the bottom of the lysimeter is connected to one side of the positioning water tank via thewater permeable pipe, the sidewall of the positioning water tank is connected with the water supplement bottle, the bottom of the positioning water tank is provided with a water outlet and connectedwith the first water level gauge, and the soil water content data acquisition system, the pluviometer and the evaporating dish are connected with the control center. The water supplement bottle is internally provided with the second water level gauge deep to the bottom to measure the water supplement amount, and the top of the water supplement bottom is provided with a water supplement opening. The simulated device and method are suitable for the fields including scientific research, water saving and environmental protection, and provide basis for research on water needed by rice field crops and optimization of field water management.

Description

technical field [0001] The invention relates to a simulation of water volume balance, in particular to a device and method for simulating various elements of water volume balance in water-saving irrigation paddy fields. Background technique [0002] Rice is one of the main food crops in my country. The traditional outdated paddy field irrigation model wastes a lot of water resources, so it is necessary to promote water-saving irrigation technology. The water regulation measures of water-saving irrigation make the paddy fields repeatedly undergo the process of alternating dry and wet. In addition, when the soil loses water and shrinks, soil cracks will be formed. Soil cracks are also an important fertility evaluation index. How to simulate the movement and transformation of groundwater in paddy fields has been It is of great significance to become a restrictive factor to further optimize the regulation and management of water and fertilizer in paddy fields. [0003] The curr...

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Problems solved by technology

[0003] The current research mainly focuses on the infiltration of paddy field water. Most of the research on groundwater movement is that it cannot reflect the changes and transformation relationships of soil water, groundwater, seepage, evaporation, and seepage in real time. For example, patent CN201621142144 Provides a continuous water replenishment control water level balance device, but it cannot reflect the change of each water volume with time and the conversion relationship between each other in time

Patent CN201620997160 discloses a device for measuring the relationship between groundwater level changes and nitrogen leaching, but the focus is on soil leaching water samples at different heights, and there is no effective measure to analyze and feed back groundwater changes and simulate its movement

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