Spatially non-stationary relationships between urbanization and the characteristics and storage-regulation capacities of river systems in the Tai Lake Plain, China

Lei, Chaogui; Wang, Qiang; Wang, Yuefeng; Han, Longfei; Yuan, Jia; Yang, Liu; Xu, Youpeng

doi:10.1016/j.scitotenv.2022.153684

Cited by 12 publications

(2 citation statements)

References 62 publications

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“…By constructing a hydrological–hydrodynamic model and evaluating the dynamic regulation and storage capacity during the flood season, we found that the polder‐type flood control pattern reduces the regulation and storage function of the river system, which adversely affects the dynamic regulation and storage capacity. Previous studies have shown that as urbanization has accelerated in recent years, the regional runoff yield has subsequently increased, and static regulation and storage capacity has dramatically declined (Gao et al, 2018; Lei et al, 2022; Xu, Xu, et al, 2018). Although the construction of polders has reduced the probability of waterlogging in the polder area, it has also reduced the regulation and storage of the river system for flooding and increased the potential regional damage to the ecological system and the flood risk (Harbul'akova et al, 2017; Laks & Walczak, 2020; Xu & Liu, 2019).…”

Section: Discussionmentioning

confidence: 99%

Analyzing the impact of polder‐type flood control pattern on river system's regulation and storage capacity under urbanization

Gao

Liu

et al. 2023

J American Water Resour Assoc

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The rapid development of urbanization has led to changes in the morphology and structure of the river system, exacerbating flooding in the basin and seriously affecting the regulation and storage capacity of the river system. We propose the evaluation indexes of the regulation and storage capacity, establish a hydrological–hydrodynamic model to investigate the effects of the polder‐type flood control pattern on the regulation and storage capacity during urbanization. The results show that the river system's static regulation and storage capacity exhibits a decreasing trend during the urbanization process. The change in static regulation and storage capacity of low‐grade rivers has a more significant impact on the total regulation and static storage capacity. The construction of polders increases the flood pressure of the river system and reduces the dynamic regulation and storage capacity. The smaller the size of the flood, the more pronounced the effect. With the increase in flood‐protected areas, the dynamic regulation and storage capacity gradually decreases, and minor flooding is more sensitive to the number of polders.

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Section: Discussionmentioning

confidence: 99%

Analyzing the impact of polder‐type flood control pattern on river system's regulation and storage capacity under urbanization

Gao

Liu

et al. 2023

J American Water Resour Assoc

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“…If the Z value is >1.96, it indicates that there is a positive spatial autocorrelation at the significance level of 5%, which is manifested as high-value or low-value congeneric clustering. If the Z value is < -1.96, it indicates that there is a negative spatial correlation at the significance level of 5%, which indicates high-value and low-value heterogeneous clustering ( 55 , 56 ). In other cases, it indicates that the attribute characteristics do not have correlation and are randomly distributed.…”

Section: Methodsmentioning

confidence: 99%

Vector maps and spatial autocorrelation of carbon emissions at land patch level based on multi-source data

Zhang

Liao²,

Zhao³

2022

Front. Public Health

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An accurate carbon emissions map is of great significance for urban planning to reduce carbon emissions, mitigate the heat island effect, and avoid the impact of high temperatures on human health. However, little research has focused on carbon emissions maps at the land patch level, which makes poor integration with small and medium-sized urban planning based on land patches. In this study, a vectorization method for spatial allocation of carbon emissions at the land patch level was proposed. The vector maps and spatial autocorrelation of carbon emissions in Zhangdian City, China were explored using multi-source data. In addition, the differences between different streets were analyzed, and the carbon emissions ratio of the land patch was compared. The results show that the vector carbon emissions map can help identify the key carbon reduction land patches and the impact factors of carbon emissions. The vector maps of Zhangdian City show that in 2021, the total carbon emissions and carbon absorptions were 4.76 × 109kg and 4.28 × 106kg respectively. Among them, industrial land accounted for 70.16% of carbon emissions, mainly concentrated in three industrial towns. Forest land carbon absorption accounted for 98.56%, mainly concentrated in the peripheral streets away from urban areas. The Moran's I of land patch level carbon emissions was 0.138, showing a significant positive spatial correlation. The proportion of land patches is an important factor in determining carbon emissions, and the adjustment of industrial structure is the most critical factor in reducing carbon emissions. The results achieved can better help governments develop different carbon reduction strategies, mitigate the heat island effect, and support low-carbon and health-oriented urban planning.

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Study on the Spatiotemporal Evolution and Driving Factors of Ecological Security in Stages Based on the DPSIRM-SBM Model: A Case Study of the Yangtze River Economic Belt

Tan,

Zhang,

Zhang

et al. 2024

Environmental Management

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Spatially non-stationary relationships between urbanization and the characteristics and storage-regulation capacities of river systems in the Tai Lake Plain, China

Cited by 12 publications

References 62 publications

Analyzing the impact of polder‐type flood control pattern on river system's regulation and storage capacity under urbanization

Analyzing the impact of polder‐type flood control pattern on river system's regulation and storage capacity under urbanization

Vector maps and spatial autocorrelation of carbon emissions at land patch level based on multi-source data

Study on the Spatiotemporal Evolution and Driving Factors of Ecological Security in Stages Based on the DPSIRM-SBM Model: A Case Study of the Yangtze River Economic Belt

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