When the amount of data to be reviewed is large and the properties of the material are complex, it is difficult to make a rational decision in selecting the optimal material. Therefore, in this study, we tried to develop an optimization model that comprehensively considers user requirements, performance and economic feasibility of materials for selecting materials with low emission of indoor air pollutants. To this end, a database was constructed considering the economic feasibility by applying the concept of LCC (Life Cycle Cost) and presenting price range options that can be selected by the user. A genetic algorithm was used to construct a model to derive a material plan that could achieve the target score while satisfying economic feasibility and user requirements. As a result of model verification and verification cases, materials were selected only within the range according to the price range option and user selection criteria for each space and part. The efficiency and effectiveness of this model were confirmed. In this study, reliable results can be presented by presenting a model that can automatically select an algorithm for the optimal preferred material selection problem that is difficult for humans to solve cognitively with database construction and user selection information. Since it can be used in other fields, scalability and usability of this model are expected. In addition, it helps user to reduce the time of the material selection process and the price of materials is also considered, so that it is expected to help improve the economic feasibility of overall construction.

In the context of the current national “dual carbon” strategic goal, the team members proposed to use “invasive plants into biochar” to deal with invasive plants and as a way to save energy and reduce emissions, so as to improve environmental problems, achieve soil improvement, greenhouse gas emission reduction and remediation of polluted environment. The online social questionnaire survey was widely carried out nationwide, and the Cronbach’s a value of the collected questionnaire survey results was 0.792 through reliability analysis, indicating that the reliability of the questionnaire was acceptable, and it was concluded that the public’s cognition of invasive plants and biochar was low. Therefore, the team members put forward the prospect of “one heart, more promotion”, and adopted different measures for different types of people to promote the implementation of the topic of “invasive plants to achieve carbon sequestration”.