Method for evaluating influence of seafloor methane leakage on marine ecological environment quality

The invention provides a method for evaluating the influence of seafloor methane leakage on marine ecological environment quality, which comprises the following steps of: firstly, performing index classification on marine ecological environment data, and performing overall evaluation on the marine ecological environment quality of different seafloor methane leakage areas based on an index classification result; the method comprises the following steps of: identifying environment variables which outbreak or attenuate remarkably in different methane leakage states, discovering the influence condition of complex environment factors on the methane leakage amount by utilizing multiple linear regression, and analyzing the influence of the methane leakage concentration on various marine ecological environment parameters; and correlating the marine ecological environment quality under different methane leakage states by using threshold regression, and finding out an environment threshold value of methane leakage conc