Method and device for analyzing water transportation of plants and soil of urban green lands

Abstract

The invention discloses a method and a device for analyzing water transportation of plants and soil of urban green lands. The method comprises the following steps of: acquiring a soil parameter, a plant parameter and driving data, wherein the soil parameters comprise all soil-layer thicknesses, and the plant parameter comprises rate between the crown breadth and the root breadth, and the driving data comprises rainfall precipitation; carrying out operation on the soil parameter, the plant parameter and the driving data by adopting a water transportation model of the plants and the soil of the urban green lands; and obtaining the quantities of states and the quantities of processes, and predicting water consumption and proper irrigation water requirement of the plants of the urban green lands, wherein the quantities of states comprise water content of all layers of soil and water-holding capacity of the canopy layer, and the quantities of processes comprise water-absorbing capacity of root systems of all the soil layers, evaporation capacity of the soil, evaporation capacity of the canopy layer and water flux of the soil. The device and the method are high in accuracy, are used for analyzing the water transportation process of the plants and the soil of the urban green lands and provide a solution for calculating the water requirement and the water irrigation capacity of an urban compound community system.

Description

technical field [0001] The invention relates to the technical field of plants and soils, in particular to a method and device for urban green space plant-soil moisture transmission analysis. Background technique [0002] Based on the soil-plant-atmosphere continuum (Soil-Plant-Atmosphere Continum, referred to as SPAC) principle, there are many models that can simulate the transfer and dissipation of water between soil water-plant-atmosphere, such as soil-water-atmosphere-plant (Soil-Water-Atmosphere-Plant, referred to as SWAP) model, one-dimensional hydrothermal coupling (The Simultaneous Heat and Water, referred to as SHAW) model based on physical foundation, etc., and can be used for the analysis of water consumption and irrigation water demand of general plants , but there are still many limitations in the application of urban green space water consumption analysis. First of all, urban green space is mostly a compound green space. In the process of water consumption, att...

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Problems solved by technology

[0002] Based on the soil-plant-atmosphere continuum (Soil-Plant-Atmosphere Continum, referred to as SPAC) principle, there are many models that can simulate the transfer and dissipation of water between soil water-plant-atmosphere, such as soil-water-atmosphere-plant (Soil-Water-Atmosphere-Plant, referred to as SWAP) model, one-dimensional hydrothermal coupling (The Simultaneous Heat and Water, referred to as SHAW) model based on physical foundation, etc., and can be used for the analysis of water consumption and irrigation water demand of general plants , but there are still many limitations in the application of urban green space water consumption analysis

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