Crex nutrition level inversion method based on unmanned aerial vehicle hyperspectrum and laser radar

Abstract

The invention discloses a carex nutrition level inversion method based on unmanned aerial vehicle hyperspectrum and laser radar. The method comprises steps of collecting data sets of a carex sample in different phenological periods, the data sets comprising an unmanned aerial vehicle hyperspectral image, unmanned aerial vehicle laser radar point cloud data and a satellite-borne hyperspectral image; according to the unmanned aerial vehicle hyperspectral image, the unmanned aerial vehicle laser radar point cloud data and / or the satellite-borne hyperspectral image, constructing a plurality of nutrient element inversion models of the sedge sample in different phenological periods; the nutrient element inversion model with the maximum inversion precision in each phenological period being determined as the target inversion model of the phenological period, the optimal nutrient element inversion model needed by the sedge in different growth stages being obtained, and a problem that inversion of the nutrient level of the sedge is limited by the phenological period being solved.

Description

technical field [0001] The invention relates to the field of plant nutrient level inversion, in particular to a method, device, equipment and computer-readable storage medium for sedge nutrient level inversion. Background technique [0002] Plants are an important part of the lake wetland ecosystem and play a key role in ecological processes such as material circulation and energy flow in the wetland ecosystem. The level of plant nutrition (such as nitrogen, phosphorus, zinc, copper) is an important parameter to describe the quality of plants, which affects the physiological and biochemical processes and health status of plants themselves, and is an important parameter for the study of global terrestrial ecosystem diversity and environmental changes. In addition, in some wetlands, the level of plant nutrition is a key factor affecting the feeding and habitat of overwintering migratory birds (such as swan geese and white-fronted geese). and migratory behavior. [0003] Care...

AI Technical Summary

Problems solved by technology

[0008] The main purpose of the present invention is to propose a method, device, equipment and computer-readable storage medium for retrieving the nutrient level of Carex, aiming to solve the problem that the inversion of the nutrient level of Carex is limited by the phenological period, and the inversion of the nutrient level of Carex The method includes the following steps:

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