Regional Non-point Source Pollution Control Method: A Design of Ecological Compensation Standards

Lu, Shilei; Wei-jun, Zhong; Li, Wei; Taghizadeh–Hesary, Farhad

doi:10.3389/fenvs.2021.724483

Cited by 7 publications

(5 citation statements)

References 29 publications

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“…Among the abiotic effects of runoffs L. Yang et al (18) highlight changes in the hydrological regime of a water object and even channel morphology, as warmer and nutrient-rich runoffs affect the infiltration rate. In addition, this fact is emphasised by the modern scientists H.F. Ehlat Madeco (14) and S. Lu et al (19) .…”

Section: Discussionmentioning

confidence: 97%

“…But, therewith, due to the increase in water temperature, the oxygen content in water drops significantly, which destructively affects the fauna of the aquatic environment (15) . Artificial water heating can significantly affect the behaviour of fish, disrupting migration processes and provoking untimely spawning (19) .…”

Section: Consequences Of Wastewater Pollution Of Natural Reservoirsmentioning

confidence: 99%

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Assessment of wastewater impact on a natural reservoir in Kyrgyzstan

Raimbekov,

Moombekov,

Iliyazov

et al. 2023

Innovaciencia

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Introduction: Anthropogenic activities artificially increase the concentration of toxic substances in surface reservoirs by discharging polluted water back into the natural environment. Maximum risks for aquatic ecosystems are observed in regions with limited wastewater treatment, which includes Kyrgyzstan. The purpose of the work – research and analysis of factors of pollution of natural reservoirs of Kyrgyzstan by wastewater, consequences for regional aquatic ecosystems and public health, and search for optimal solutions to minimise destructive pollution. Material and Methods: The research was conducted using general scientific methods of cognition, in particular, system analysis, synthesis, generalisation, and concretisation. Results and Discussion: In the course of the research the ecological state of natural water resources of Kyrgyzstan, into which wastewater is discharged, the dynamics of pollution of the aquatic environment depending on various factors of influence is analysed, optimal and feasible to implement measures to reduce the adverse effects of wastewater on the state of natural reservoirs and public health, and improve the overall environmental situation in the region are developed. In addition, the possibilities of applying modern management and technological measures to minimise the content of pollutants in wastewater, based on the synergy of environmental safety and economic efficiency, with the introduction of modern innovative systems of control and monitoring of environmental pollution have been explored. Conclusion: It is established that there is no safe wastewater, therefore, optimisation of the water use and water treatment system in Kyrgyzstan involves the application of an ecosystem approach and the introduction of integrated water resources management.

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Section: Discussionmentioning

confidence: 97%

Section: Consequences Of Wastewater Pollution Of Natural Reservoirsmentioning

confidence: 99%

Assessment of wastewater impact on a natural reservoir in Kyrgyzstan

Raimbekov,

Moombekov,

Iliyazov

et al. 2023

Innovaciencia

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show abstract

“…In addition to the effluent from wastewater treatment plants and inflowing rivers, rural domestic pollution sources, agricultural non-point sources, urban runoff, pollutant from residents' living and internal sources within the watershed will also affect the water quality of the reservoir. Studies have shown that the non-point source pollution load can even reach 60%-80% of the total pollution load, which has become the main pollution source of some important water bodies (Zheng et al, 2009;Lu et al, 2021;Hou et al, 2022;Tong et al, 2022). Table 6 shows the inflow and contribution ratios of pollutants such as rural domestic pollution sources, agricultural nonpoint sources, urban runoff, and pollutant from residents' living and internal sources in the Zhangze Reservoir.…”

Section: Water Quality Modelingmentioning

confidence: 99%

Effect of Sewage Treatment Plant Effluent on Water Quality of Zhangze Reservoir Based on EFDC Model

Yang¹,

Wei

et al. 2022

Front. Environ. Sci.

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Understanding how external water affects the water quality of target water bodies is an important prerequisite for predicting water quality changes and formulating pollutant reduction plans. Using the EFDC modeling system platform, this study constructed the hydrodynamic and pollutant dispersion and diffusion models of Zhangze Reservoir, and by using the hydrology and water quality data from 2013 to 2018, this study examines the different water quality responses of Zhangze Reservoir under different inflow water control scenarios. The results show that the simulated value of the hydrological station is basically consistent with the measured value of the hydrological station. Under the current Class III water quality requirements for Zhangze Reservoir, direct inflow of effluent from the wastewater treatment plant of the main urban area into the reservoir will have a significant impact on the water quality. When the effluent is purified through constructed wetlands, it significantly improves the water quality of the reservoir, but the concentration of TN and TP still cannot reach the Class III standard in the short term,. When all rivers entering the reservoir meet the standard and the effluent from the wastewater treatment plant in the main urban area does not enter the reservoir, the content of COD, ammonia nitrogen and TP in water will reach the Class III standard, but reducing the TN content to meet the standard requirement will be difficult within 3 years.

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“…From the theoretical basis, it has been found that there is an inverted U-shaped relationship between financial technology development and ANSP, so that ANSP can be reduced more effectively by improving the level of financial technology as a main focus (Jiang et al, 2019). At the same time, reasonable ecological compensation standards are also key to solving farmland surface source pollution, and fiscal compensation can effectively stimulate farmers' willingness to control surface source pollution and reduce ANSP (Lu et al, 2021). Based on these, Jiang et al (2020) established a panel-smoothed transformation regression model and concluded that the increase in ANSP due to agricultural economic growth is largely related to the level of financial development and that increasing the level of finance to a medium-high threshold will suppress ANSP (Jiang et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

The role of green finance in reducing agricultural non-point source pollution—an empirical analysis from China

Wen

Zhang

2023

Front. Sustain. Food Syst.

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IntroductionGreen finance plays a crucial role in driving sustainable development and has the potential to effectively reduce pollution emissions, thereby positively impacting the environment. However, in the agricultural sector, China, unlike developed countries, primarily relies on a small-peasant economy, and the green financial system is not well-developed. As a result, the specific emission reduction effects and mechanisms of green finance on agricultural non-point source pollution (ANSP) remain unclear. The objective of our research is to explore the internal mechanisms through which green finance influences ANSP, with the aim of providing valuable policy insights to the government and promoting the green transformation of agriculture for enhanced food security.MethodsThis study employs an empirical analysis of green finance on ANSP using provincial panel data from China spanning the years 2005 to 2020. By utilizing robust data and applying empirical analysis, we can derive scientifically credible conclusions. We introduce a relative indicator to assess the trend of ANSP and investigate the pathways through which green finance operates using heterogeneity analysis, intermediary effect evaluation, and threshold effect analysis.Results and DiscussionThe empirical findings reveal the following insights: (1) While green finance demonstrates a significant reduction effect on ANSP, this effect varies across different regions. Specifically, the impact of green finance on ANSP reduction is more pronounced in areas characterized by strong comprehensive agricultural strength, high levels of economic development, and predominantly focused on plantation agriculture. (2) From a mechanistic standpoint, green finance substantially diminishes ANSP by facilitating agricultural scaling and promoting the adoption of green technologies. (3) The threshold effect analysis demonstrates that the mitigation effect of green finance on ANSP exhibits non-linear characteristics, with a double threshold effect observed. As the level of green finance development increases, the mitigation effect is further enhanced.ConclusionIn conclusion, the appropriate implementation of green finance can effectively enhance the agricultural environment and ensure food security. Considering the heterogeneity of the role of green finance and the presence of threshold values, it is crucial for the government to tailor green finance policies according to local conditions. This research not only expands on previous studies but also offers valuable insights for the government in formulating green finance policies. Furthermore, it provides a viable pathway for reducing ANSP while serving as a reference for other developing countries aiming to establish green agriculture and sustain food system security.

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Regional Non-point Source Pollution Control Method: A Design of Ecological Compensation Standards

Cited by 7 publications

References 29 publications

Assessment of wastewater impact on a natural reservoir in Kyrgyzstan

Assessment of wastewater impact on a natural reservoir in Kyrgyzstan

Effect of Sewage Treatment Plant Effluent on Water Quality of Zhangze Reservoir Based on EFDC Model

The role of green finance in reducing agricultural non-point source pollution—an empirical analysis from China

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