ResearchArticle Evaluation of Urban Environmental and Economic Coordination Based on Discrete Mathematical Model Chenbin Dou , 1 Lan Zheng , 1 Wenjuan Wang , 1 and Mohammad Shabaz 2 1 School of Economics, Hefei University of Technology, Hefei 230601, China 2 Arba Minch University, Arba Minch, Ethiopia Correspondence should be addressed to Lan Zheng; hfzhengl@163.com Received 7 April 2021; Revised 5 May 2021; Accepted 8 May 2021; Published 19 May 2021 Academic Editor: Dr. Dilbag Singh Copyright©2021ChenbinDouetal.isisanopenaccessarticledistributedundertheCreativeCommonsAttributionLicense, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. eurbanecologicalenvironmentisthematerialbasisandconditionforhumanbeingstoengageinsocialandeconomicactivities and the supporting system for the formation and sustainable development of cities. With the acceleration of urbanization and industrialization,urbanlivingenvironmentsandeconomicdevelopmenthavebecomethefocusofpeople’sattention.isleadsto thenecessityofstudyinghowtoimprovethequalityoftheurbanlivingenvironmentandpromotetheharmoniouscoexistenceof population, natural environment, and social economy. Traditional methods focus on multiple regression models to evaluate the urban environmental and economic harmony, but this method does not consider the weight of each index, resulting in poor accuracy of the evaluation results. is paper proposes a discrete mathematical model to design the evaluation index and evaluationsystemofurbanenvironmentalandeconomiccoordination.Itcalculatestheweightofeachindex;carryingcapacityof theurbanenvironment,thevalueofeachenvironmentalfactor,andthecomprehensivevalueoftheenvironmentisdetermined. e static evaluation and dynamic evaluation are used to evaluate the coordination of the urban environmental economy. e experimentalresultsshowthatthedesignedevaluationmethodofurbanenvironmentaleconomiccoordinationhashighaccuracy and effectively improves the reliability and evaluation time. 1. Introduction ecityistheproductofthedevelopmentofhumansociety to a certain stage. It is the highly concentrated and rapidly running area of the Earth’s surface material and energy. In this sense, a city is also the center of politics, economy, culture,education,science,andtechnologyofacountryand a region and the place with the densest population and industry.erefore,theurbanecologicalenvironmentisthe material basis and condition for human beings to engage in socialandeconomicactivitiesandthesupportingsystemfor the formation and sustainable development of cities. With theaccelerationofurbanizationandindustrialization,urban living environments and economic development have be- comethefocusofpeople’sattention.ecityisanimportant activity space for people to live, work, travel, and enter- tainment. It is an urgent problem for modern city con- struction and development to coordinate the relationship between urban living environment and economic development and provide urban residents with a comfort- ableactivityspace.eamplificationeffectofthedestruction ofhumansettlementswillcauseirreversibledeteriorationin the future development of cities. e rapid development of the economy affects the living environment of the city; therefore, how to improve the quality of the urban living environment and promote the harmonious coexistence of population, natural environment, and social economy has become an urgent problem to be studied and solved by academic circles and government organizations. At present, the country pays more and more attention to the coordi- nated development of cities. Some scholars have found that the relationship between economic growth and environmental pollution is similar to the relationship between income level and fair distribution in Kuznets. Li cities in Shaanxi province as the research object, by constructing urban human settlements environ- mentindexsystemandindexsystemofeconomysystem,the use of PCA (principal component analysis) model for the Hindawi Mathematical Problems in Engineering Volume 2021, Article ID 1566538, 11 pages https://doi.org/10.1155/2021/1566538