Evaluation Of Eco-environmental Effects Of Seaweed Culture Based On Remote Sensing Inversion Model

In recent years,marine ecological environmental protection and ecosystem balance have become the focus of scholars from all walks of life,and are also the focus of the country's key attention.Marine resources are rich and diverse.However,natural changes and human production activities have had a good or bad impact on the marine ecological environment.In recent years,the area of seaweed farming along the coast of Jiangsu Province has been expanding,becoming the world's largest producer of seaweed,but the outbreak of red tides in coastal waters has become more frequent and serious,affecting the marine ecological environment.So what is the impact of seaweed farming on the marine ecological environment? To this end,this paper studies the marine ecological environment changes in the laver culture area based on RS and GIS spatial analysis.Firstly,according to the spectral characteristics of seaweed,the spatial and temporal distribution of seaweed culture in Haizhou Bay area was studied.Secondly,the marine ecological environment evaluation model and indicators were determined according to the ecological environment evaluation criteria of marine aquaculture area.Based on the actual seawater quality monitoring data,the laver culture area was established.The remote sensing inversion model of marine ecological environment was analyzed and its relative error was analyzed.Thirdly,based on the remote sensing model,the marine ecological environment evaluation index of Haizhou Bay seaweed breeding area was simulated by remote sensing and comprehensive evaluation model.Finally,give full play to the advantages of RS and GIS,analyze and evaluate the ecological environment of the laver culture area based on the remote sensing inversion results,and analyze the reasons for the results by combining the actual sea environment and social ecological factors in the study area.The eco-environmental evaluation index factors of the laver culture area include chlorophyll a concentration,inorganic nitrogen concentration and PH value.Using high spatial resolution remote sensing images and actual monitoring data,combined with ENVI and ArcGIS software platform,the spatial and temporal distribution of marine eco-environmental effects on seaweed culture areas was realized,which provided a scientific basis for rational evaluation of seaweed culture activities.