Influence mechanism of groundwater on the carbon cycle in alkaline lakes

Dong, Shaogang; Liu, Baiwei; Ma, Mingyan; Lei, Junhao; Zhang, Min; Feng, Yanbo

doi:10.1016/j.jhydrol.2023.129104

Cited by 13 publications

(2 citation statements)

References 56 publications

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“…Using the monitoring data of 7 pollutants in Daihai Lake from 2008 to 2021 to calculate P, the larger the P, the worse the water quality (Figure 2). From Figure 2 can be seen, the trend of water quality changes in Daihai Lake all show that P first increases and then decreases, and then gradually increases, and the water quality evaluation results are only in 2008, 2009 and 2016 to reach V water quality standards, the rest are inferior Class V.Caused by Daihai Lake water pollution in two main ways, one is the Daihai Lake is a semi-arid region inland type closed lake, evaporation, rainfall, endogenous pollution load increased [16]; second, human activities lead to exogenous pollution beyond the self-purification capacity of the lake [17].…”

Section: Improve the Evaluation Results Of Nemero Pollution Index Met...mentioning

confidence: 99%

Water quality evaluation of Dahai Lake in Inner Mongolia based on improved Nemero pollution index method and principal component analysis

Wei

Liu

et al. 2023

E3S Web of Conf.

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In order to evaluate the water quality changes of Dahai Lake in Inner Mongolia, the water quality monitoring data of Dahai Lake from 2008 to 2021 were used as an example, and the improved Nemero pollution index method and the principal component analysis method were used to evaluate the water quality changes of Dahai Lake. The results show that the two evaluation methods of Daihai Lake evaluation of water quality change trend results are basically the same, are able to fully reflect the comprehensive level of water quality pollution, but each evaluation method has disadvantages, the improved Nemero pollution index method can not reflect the contribution of each pollutant, the principal component analysis method can not evaluate the water quality category. Therefore, the combination of two methods, the improved Nemero pollution index method and the principal component analysis method, can complement and support each other's evaluation conclusions, and the evaluation results are more accurate and objective, and can reflect the changes in the water quality of Daihai Lake in a comprehensive manner.

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Section: Improve the Evaluation Results Of Nemero Pollution Index Met...mentioning

confidence: 99%

Water quality evaluation of Dahai Lake in Inner Mongolia based on improved Nemero pollution index method and principal component analysis

Wei

Liu

et al. 2023

E3S Web of Conf.

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show abstract

“…Therefore, the estimation of sediment carbon sequestration in this study is based on surface sediments, as changes in carbon sequestration in surface sediments provide a more intuitive representation of the impact of human and natural factors on carbon sequestration in CHLW. Through meticulous screening and analysis with Citespace, this research has extracted relevant literature [39][40][41][42][43][44][45][46][47][48][49][50][51][52][53][54] and compiled data on carbon sequestration at CHLW from 1985 to the present. The study estimates the carbon sequestration and storage in water bodies, vegetation, and sediments during different periods.…”

Section: Various Carbon Sequestration In Chlwmentioning

confidence: 99%

Spatiotemporal Variations in the Carbon Sequestration Capacity of Plateau Lake Wetlands Regulated by Land Use Control under Policy Guidance

Chen,

Zhang,

Yang

et al. 2023

Land

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Lake wetlands play a crucial role in mitigating climate change. Human activities and climate change impact the carbon sequestration capacity of lake wetlands. However, this process is intricate. Clarifying the decisive factors that affect carbon sequestration is crucial for preserving, utilizing, and enhancing the carbon sequestration capacity of plateau lake wetlands. Here we analyzed the regulatory role of land use under policy guidance on the carbon sequestration capacity of the plateau lake wetland of Caohai (CHLW), SW China. The results show that: (1) The cumulative carbon sequestration varied significantly from 1990 to 2020, with the highest carbon sequestration of 15.80 × 105 t C in 1995 and the lowest of 3.18 × 105 t C in 2020, mainly originating from endogenous carbon sequestration within the plateau lake wetlands. (2) As of 2020, the carbon stock of CHLW was approximately 2.54 × 108 t C. (3) The carbon sequestration in CHLW experienced a dynamic change process of decrease-increase-decrease over 30 years, mainly influenced by land use changes under policy regulation, with human and natural factors accounting for 91% and 9%, respectively. (4) Under three simulated scenarios (Q1, Q2, and Q3), the ecological priority scenario exhibited positive regulation on the carbon sequestration of CHLW and the entire protected area in 2030 and 2060, with the highest increase in carbon sequestration. This scenario is consistent with the current conservation policy, indicating that the current protection policy for CHLW is scientifically reasonable. This research demonstrates how land use and climate changes impact carbon storage in wetlands, with consideration of policy guidance. It provides references for utilizing and conserving lake wetlands worldwide, ultimately achieving the dual goals of wetland conservation and carbon neutrality.

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Carbon balance model of groundwater-lake systems in arid and semi-arid areas and its application

Li,

Dong,

et al. 2025

CATENA

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Influence mechanism of groundwater on the carbon cycle in alkaline lakes

Cited by 13 publications

References 56 publications

Water quality evaluation of Dahai Lake in Inner Mongolia based on improved Nemero pollution index method and principal component analysis

Water quality evaluation of Dahai Lake in Inner Mongolia based on improved Nemero pollution index method and principal component analysis

Spatiotemporal Variations in the Carbon Sequestration Capacity of Plateau Lake Wetlands Regulated by Land Use Control under Policy Guidance

Carbon balance model of groundwater-lake systems in arid and semi-arid areas and its application

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