Article
Biodiversity Conservation
Pinzeng Rao, Siru Wang, Ai Wang, Dawen Yang, Lihua Tang
Summary: Accurately quantifying the spatiotemporal nutrient loads from nonpoint sources is challenging due to the complex rainfall-runoff processes. This study improves the export coefficient model by considering the spatiotemporal distribution of the export coefficient and incorporates a grid-based rainfall-runoff module and land-use data. The results show that the improved model can simulate reasonable spatiotemporal variation in nutrient loads and provide insights on water pollution control.
ECOLOGICAL INDICATORS
(2022)
Article
Environmental Sciences
Yingshan Chen, Yan Zhou, Shiqi Fang, Mo Li, Yijia Wang, Kaihua Cao
Summary: With the rapid growth of population and economy, there is a growing need for optimizing cropping patterns due to shortage and mismatch of land and water resources. This study builds a multi-objective programming model for Economic-Environmental Synergistic Optimization for Cropping Pattern under Climate Change (EESO-CP-CC) to achieve increased economic benefits and reduced environmental pollutants emission. The model was applied to an irrigation district in northeast China, and the results show that adjusting crop acreage can maximize economic benefits while improving environmental effects.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Jie Liu, Wenquan Gu, Yawen Liu, Wenhui Li, Dongguo Shao
Summary: Increased riverine nitrogen (N) concentrations due to human activities is a leading cause of water quality decline worldwide. This study evaluated the changes in net anthropogenic N inputs (NANI) and the N stored in land ecosystems (legacy N) in the Jianghan Plain (JHP) from 1990 to 2019 and their impacts on TN exports. An empirical model was developed to estimate TN exports and predict future variations. The results showed that NANI exhibited an M-shaped trend, with N fertilizer application being the dominant driver. Legacy N was also an important source of TN exports, but its contribution has been rarely considered in pollution control strategies.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
Alejandra Zurita, Mauricio Aguayo, Pedro Arriagada, Ricardo Figueroa, Maria Elisa Diaz, Alejandra Stehr
Summary: Most water bodies are currently facing pollution from industrial and domestic sectors. The Biobio river is under various anthropogenic pressures, including industrial water supply, drinking water, hydroelectric power generation, agriculture, and industrial and urban waste. A water quality model was used to determine the Biological Oxygen Demand Loading Capacity in a basin with limited water quality data under strong anthropogenic pressures, showing a high carrying capacity in the studied section of the river.
Article
Environmental Sciences
Shouwu Jing, Liping Liao, Minzhe Du, Enyi Shi
Summary: This paper provides empirical evidence that joint governance of transboundary water pollution can effectively improve water quality, with significant impacts on dissolved oxygen, chemical oxygen demand, and ammonia nitrogen emissions. It suggests that the pressure from officials for green promotion and supervision from stakeholders are important mechanisms influencing this form of pollution control.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2022)
Article
Environmental Sciences
Daming Li, Shilong Bu, Qichen Li, Shuo Chen, Zhu Zhen, Changfeng Fu
Summary: The research focused on the water quality in the upstream basin of the Yanghe Reservoir in Qinhuangdao City, Hebei Province, China. It was found that pollutants discharge led to serious exceedances of TN and TP, requiring reduction by 57% and 53% respectively. Practical and feasible measures for pollutant reduction were discussed.
ENVIRONMENTAL EARTH SCIENCES
(2021)
Article
Forestry
Mehdi Aalipour, Elzbieta Antczak, Tomas Dostal, Bahman Jabbarian Amiri
Summary: The study examined the impact of landscape configuration changes on river water quality in 31 catchments in the southwestern Caspian Sea basin. Different chemical exports showed seasonal variations, with permanently irrigated land leading to the disruption of broad-leaved forest and grassland ecosystems.
Article
Green & Sustainable Science & Technology
Sudha Sippi, Dipteek Parmar
Summary: This study simulates the water quality of river Yamuna in Delhi after implementing different restoration measures. The results show that changing the width and depth of the river significantly improves water quality. However, closing the barrage does not lead to desirable results in terms of water quality improvement.
ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
(2023)
Article
Environmental Sciences
Liu Wan, Xiao Hua Wang, William Peirson
Summary: This study quantified the potential impacts of climate change and nutrient pollution on water quality and algal blooms. The results showed that increased air temperature and decreased streamflow led to changes in water temperature, dissolved oxygen concentration, and phytoplankton concentration. Decreased streamflow also increased the concentration of total nitrogen, total phosphorus, and phytoplankton with the same pollution inputs. Managing water quality in estuaries subject to climate change requires addressing reduced streamflow and regulating non-point-source pollution discharge.
Article
Computer Science, Interdisciplinary Applications
Saman Ebrahimi, Mahdis Khorram
Summary: The paper aims to provide a comprehensive river water quality model considering uncertainty parameters, hydrology, and pollution load, illustrating the importance of considering the interaction among parameters, hydrologic, and pollutant discharge data for river water quality simulation.
JOURNAL OF HYDROINFORMATICS
(2021)
Article
Green & Sustainable Science & Technology
Kai Zhang, Shunjie Wang, Shuyu Liu, Kunlun Liu, Jiayu Yan, Xuejia Li
Summary: A water environment quality evaluation and pollution source analysis were conducted in the Tuojiang River Basin using grey water footprint, decoupling theoretical model, and correlation analysis. The results showed that the water environment quality improved as the grey water footprint decreased. Total phosphorus was the primary pollution source, and the economic development level and water environment showed high-quality coordination. Farmland and stock breeding pollution contributed the most to agricultural pollution and were the main sources of the grey water footprint. Pearson's correlation analysis revealed that the pollutants came from imported pollution in tributaries and agricultural pollution, especially from stock breeding and farmland irrigation. This study provides a decision-making basis for strengthening the ecological barrier in the Yangtze River.
Article
Biodiversity Conservation
Li Yang, Yu Lin, Junqi Zhu, Kun Yang
Summary: Research on digital economy and carbon environment governance is of paramount importance for achieving sustainable development objectives. This study examines the overall progress and spatial-temporal features of digital economy and carbon environment governance in China from 2011 to 2020. The findings reveal an upward trend in the overall levels of digital economy and carbon environment governance, as well as notable spatial and temporal disparities. It is crucial for future development efforts to focus on reducing relative disparities among regions.
ECOLOGICAL INDICATORS
(2023)
Article
Construction & Building Technology
Xinbo Xu, Li Lan, Jingyun Shen, Yuxiang Sun, Zhiwei Lian
Summary: The research indicated that factors such as heat, cold, and noise in the bedroom environment significantly influence residents' sleep quality, while ventilation and plants can effectively improve sleep quality.
BUILDING AND ENVIRONMENT
(2021)
Article
Economics
Junqing Li, Kaifeng Liu, Jianbo Zhang
Summary: In this paper, a game-theoretic model is constructed to demonstrate that improving the legal environment can enhance the quality of final products by improving the quality of intermediate products, especially in industries with higher contract intensity. Using Chinese Customs Database and Industrial Enterprise Database from 2000 to 2006, the research measures export quality at the level of firm-product-country and examines the impact of the legal environment on export quality. The empirical study reveals that improving the legal environment can increase export quality, especially in firms with higher contract intensity. Further studies show that the legal environment and contract intensity influence firms' import decisions, thus significantly impacting the product quality of export firms.
CHINA ECONOMIC REVIEW
(2023)
Article
Green & Sustainable Science & Technology
Feng Wang, Baoling Xu, Yumei Si, Yuzhu Shang, Wei Zhang, Beiming Cai, Minxing Jiang, Siqi Xu, Siqi Lu
Summary: This study investigated the components and internal drivers of household water footprint inequality in China from 2002 to 2012 and found that household grey water footprint is unevenly distributed, with food, clothing, and residence being the main sources of inequality. The study also revealed that although the household water Gini coefficient increased slightly, the structural changes in household water footprint contributed to a reduction in inequality.
SUSTAINABLE PRODUCTION AND CONSUMPTION
(2023)
