Mangrove forest ecological restorability assessment method based on unmanned aerial vehicle hyperspectrum

Abstract

The invention provides a mangrove forest ecological restorability evaluation method based on the unmanned aerial vehicle hyperspectrum, which comprises the steps of collecting samples in a research area in a plurality of preset periods, and obtaining a sample set, original plant function character data corresponding to plant function characters in the sample set and original soil attribute data corresponding to soil attributes in the sample set are obtained; performing remote sensing inversion on the original plant functional character data, performing spatial prediction on the original soil attribute data, and determining to-be-used plant functional character data and to-be-used soil attribute data; splitting the ecological restorability into resistance and reconstruction capability based on plant functional traits and resistance and reconstruction capability based on soil attributes, and calculating the ecological restorability of the mangrove plant according to the standby plant functional trait data and the standby soil attribute data. According to the invention, continuous monitoring of mangrove plant functional traits and soil attributes in a small scale can be completed, and quantitative estimation and evaluation of mangrove plant ecological restorability after interference is stopped are realized.

Description

technical field [0001] The invention relates to the technical field of vegetation ecological restoration, in particular to a method for evaluating mangrove ecological resilience based on UAV hyperspectral. Background technique [0002] Mangroves have ecosystem service functions such as promoting siltation and creating land, preventing waves and embankments, and maintaining biodiversity. Due to unreasonable human development activities, the spatial distribution of mangroves has become fragmented. In addition to natural disturbances (such as disasters, climate change, or sea level rise), more and more human disturbances (domestic and aquaculture sewage, industrial and construction pollutants) are disturbing the dynamic balance of the mangrove ecosystem, which has a negative impact on mangrove health and ecology. service is adversely affected. Although the government continues to try to curb these human-induced disturbance factors to achieve the purpose of protecting mangroves...

AI Technical Summary

Problems solved by technology

In addition, remote sensing methods often focus on statistical models, but their portability is poor, the accuracy of the models is easily affected by time, place and species, and the interpretation of remote sensing mechanisms is not strong

[0011] (2) Most studies focus on the traits of mangroves at a certain time, ignoring the continuous monitoring of the growth process;

In contrast, natural disturbances to mangroves (such as sea level rise and natural disasters) are global disturbances, affecting a large spatial range, and it is difficult to take into account small-scale fluctuations

In addition, the ecological resilience evaluation index system and the remote sensing methods used in the larger space-time scale are not suitable for smaller-scale research, which is likely to cause large errors and affect decision-making and the proposal of ecological restoration technology.

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