China Plastics ›› 2022, Vol. 36 ›› Issue (4): 121-127.DOI: 10.19491/j.issn.1001-9278.2022.04.018

• Plastic and Environment • Previous Articles     Next Articles

Prediction of annual output of plastic waste in urumqi city and analysis of influence factors

WAN Yi(), LI Li(), JU Chunyan, HAO Xuechun, LI Run   

  1. College of Public Administration and Law,Xinjiang Agricultural University,Urumqi 830052,China
  • Received:2021-11-23 Online:2022-04-26 Published:2022-04-24

Abstract:

This study was based on the data related to the proportion of plastic waste in municipal solid waste, the delivering quantity of municipal solid waste, and the data of social and economic development in Urumqi City from 2008 to 2019. The annual output of plastic waste in Urumqi was analyzed using the multiple linear regression equation model, ARIMA model, and gray model, and the gray correlation model was used to distinguish the main influence factors. The results indicated that the annual output of plastic waste in Urumqi City exhibited a linear growing trend from 4.75×10? t in 2008 to 35.14×10? t in 2018. The analysis results of influence factors indicated that the per capital disposable income had the greatest impact on the annual output of plastic waste. On the other hand, the urban population generated the greatest impact on the generation of plastic waste when the level of environmental construction was the smallest. The ARIMA model was considered to be the best model to predict the annual output of plastic waste in Urumqi City. The prediction results indicated that the annual output of plastic waste in Urumqi City was going to reach 54.4×10? t, 82.63×10? t, and 124.91×10? t by 2025, 2030, and 2050, respectively. This may bring about some new challenges to the prevention and control of plastic waste.

Key words: plastic waste, prediction of generation, multiple linear regression, ARIMA, gray model, influence factor

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