Characteristics of rural domestic sewage discharge and their driving mechanisms:evidence from the Northern Region,China

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外文摘要：The traits of rural domestic sewage emission are unclear,negatively affecting rural domestic sewage treatment and sewage management.This study used data from the Second National Pollution Source Census Bulletin to establish a data set.The spatial distribution characteristics and main factors influencing rural sewage discharge in the Northern Region were studied using spatial autocorrelation analysis and structural equations.The findings demonstrated that(1)a significant Spearman correlation between drainage water volume(DWV),chemical oxygen demand(COD),ammonia nitrogen(NH3-N),total nitrogen(TN),and total phosphorus(TP)and that the correlation coefficients between DWV and COD,NH3-N,TN and TP were 0.87**,1.0**,0.99**,0.99**,respectively;(2)rural sewage discharge showed spatial autocorrelation,and rural domestic sewage discharge in the districts and counties with an administration was significantly higher than in the surrounding areas;and(3)social development was the main driver rural domestic sewage changes(path coefficient was 0.407**),and the main factors influencing rural domestic sewage discharge were the urbanization rate,years of education,and population age structure.This study obtained the spatial variation law and clarified the main influencing factors of rural domestic sewage to provide data support and a theoretical basis for subsequent rural sewage collection and treatment.Use of the Inner Mongolia Autonomous Region in northern China as a typical case,provides a theoretical foundation for scientific decision-making on rural domestic sewage treatment at the national and regional levels and offers new perspectives for managing pollutants.

外文关键词：

Rural domestic sewageEmission characteristicsSpatial autocorrelation analysisInfluencing factors

作者：

Jianguo Liu、Ziyu Zhou、Pengyu Li、Zixuan Wang、Ying Yan、Xuezheng Yu、Wenkai Li、Tianlong Zheng、Yingnan Cao、Wenjun Wu、Wenqian Cai、Zhining Shi、Junxin Liu

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作者单位：

Key Laboratory of Environmental Pollution Control and Remediation at Universities of Inner Mongolia Autonomous Region,College of Resources and Environmental Engineering,Inner Mongolia University of Technology,Hohhot 010051,China

State Key Laboratory of Environmental Aquatic Chemistry,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China

University of Chinese Academy of Sciences,Beijing 100049,China

SCEGC No.12 Construction Engineering Group Co.,Ltd.,Ankang 725000,China

State Environmental Protection Key Laboratory of Environmental Planning and Policy Simulation,Chinese Academy of Environmental Planning,Beijing 100041,China

Technical Centre for Soil,Agriculture and Rural Ecology and Environment,Ministry of Ecology and Environment,Beijing 100012,China

Sustainable Infrastructure and Resource Management(SIRM),UniSA STEM,University of South Australia,South Australia,Mawson Lakes,SA 5095,Australia

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基金：

National Natural Science Foundation of Chinaproject of Inner Mongolia"Prairie Talents"Engineering Innovation Entrepreneurship Talent TeamInnovation Team of the Inner Mongolia academy of Science and Technology

项目编号：

51838013CXTD2023-01-016

出版年：

2024

DOI：

10.1007/s11783-024-1843-0

环境科学与工程前沿

高等教育出版社

环境科学与工程前沿

影响因子：0.545

ISSN：2095-2201

年,卷(期)：2024.18(7)