The evolution characteristics of main waterways and their control mechanism in the radial sand ridges of the southern Yellow Sea

Chen, Kefeng; Zheng, Jinhai; Zhang, Chi; Wang, Nairui; Zhou, Congcong

doi:10.1007/s13131-017-1042-y

Cited by 12 publications

(7 citation statements)

References 3 publications

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“…One of the geomorphologically amazing (Chen et al 2017), globally unique, yet ecologically very poorly studied coastal areas in China, is the complex of intertidal habitats along the Dafeng-Dongtai-Rudong coastline in southern Jiangsu Province, a complex that includes the Tiaozini mudflats along the mainland coast and the offshore Dongsha Shoals (32.4-33.4°N, 120.7-121.5°E;Kang et al 2017;Xiong et al 2017, see Fig. 3).…”

Section: ) Is Includes Coastal Areas Being Designated Asmentioning

confidence: 99%

Loss of habitat leads to loss of birds: reflections on the Jiangsu, China, coastal development plans

Piersma¹,

Chan²,

et al. 2017

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Prompted by the realization that parts of the coast of southern Jiangsu Province, China, are under threat of reclamation, we here summarize evidence that loss of intertidal habitats around the Yellow Sea and at other parts along the Chinese and Korean coasts has already led to severe population declines of migratory shorebirds, including multiple endangered species. All the evidence currently at hand suggest that the plans to reclaim (develop) additional intertidal habitat in this region poses a substantial threat to the remaining shorebird populations. We recommend that new Environmental Impact Assessments are warranted before further reductions in the extent of mudflats take place.

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Section: ) Is Includes Coastal Areas Being Designated Asmentioning

confidence: 99%

Loss of habitat leads to loss of birds: reflections on the Jiangsu, China, coastal development plans

Piersma¹,

Chan²,

et al. 2017

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“…However, this steepening of the mudflat is also observed at similar mudflats along the Jiangsu coast, which is driven by (longshore) tidal currents [59,93]. Additionally, the Yaosha shoal-channel system indeed migrates southward [94] (similar to other channel-shoal systems along the Jiangsu coast [95,96]). The siltation at the center of Yaosha can also be seen in the increase of supralittoral at the center of Yaosha (Figure 10b).…”

Section: Alternative Port Configurationsmentioning

confidence: 79%

Building for Nature: Preserving Threatened Bird Habitat in Port Design

Muller

Chan

Piersma

et al. 2020

Water

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The fast economic development of the People’s Republic of China has created an increasing demand for usable land, resulting in large-scale land reclamations along the coastal zone. One of these regions is Tongzhou Bay (Jiangsu coast), a region characterized by large intertidal mudflats and deep tidal channels with potential for the development of agri-aquaculture and the construction of a deep-sea port. However, these intertidal mudflats also provide vital ecosystem services and support many wildlife species, including several endangered migratory shorebirds within the East Asian–Australasian Flyway. With increasing realization of the importance of maintaining such ecological values, a more integrated coastal development strategy is needed. This study aims to develop a sustainable integrated design for the Tongzhou Bay port, following a “Building with Nature” approach. We use a morphodynamic model to compute habitat suitability for two shorebird species (Great Knot Calidris tenuirostris and Bar-tailed Godwit Limosa lapponica). Several port configurations were developed on the basis of three design criteria: (1) create area for future port development, whilst (2) preserving existing high-value ecotopes for shorebirds and (3) enhance the natural accretion rate of such ecotopes. Simulation results showed a clear difference in siltation patterns, preservation and enhancement of preferred ecotopes. This work therefore demonstrates the potential and importance of morphological and habitat suitability modelling when designing large-scale reclamations and port constructions, especially in dynamic areas such as Tongzhou Bay.

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“…When the ratio is greater than 1, Ca 2+ and SO 4 2− in groundwater mainly come from the dissolution of calcite or dolomite. In Figure 4d, the Taihui water samples after grouting are distributed below the 1:1 line, indicating that in addition to the dissolution of gypsum, SO 4 2− has other sources, such as the oxidation of pyrite [45,46]. According to the borehole histogram of the study area, pyrite exists in the limestone fissures of C 3 II and C 3 III groups.…”

Section: Ion Combination Ratiomentioning

confidence: 94%

Study on the Hydrochemical Characteristics and Evolution Law of Taiyuan Formation Limestone Water under the Influence of Grouting with Fly Ash Cement: A Case Study in Gubei Coal Mine of Huainan, China

Xiao,

2024

Water

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The hydrogeological conditions of Huainan Coalfield are complex. The Taiyuan formation limestone water (Taihui water) in this area is a direct threat to the water source of the 1# coal mining floor. In order to prevent and control water disasters, Gubei Coal Mine adopted ground high-pressure grouting with fly ash cement to block the hydraulic connection between the Taiyuan formation limestone aquifer and the Ordovician limestone aquifer. However, the injected slurry will destroy the original hydrochemical balance of Taihui water and change its hydrochemical characteristics. Taking the influence area of the 2# karst collapse column in the Beiyi 1# coal mining area of Gubei Coal Mine as an example, a total of 25 Taihui water samples were collected. The hydrochemical characteristics and evolution law of Taihui water before and after grouting are studied via the multivariate statistical method. The research methods include constant index statistics, Piper diagram, correlation analysis, ion combination ratio, and saturation index analysis. The results show that after grouting, the concentrations of Na+ + K+, Ca2+, Mg2+, and Cl− in Taihui water decrease, while the concentrations of SO42− and HCO3− increase. The average values of PH and TDS become larger. The hydrochemical types of Taihui water are more concentrated, mainly HCO3-Na and Cl-Na. The correlations between conventional indicators decrease. According to the analysis of ion combination ratio, dissolution, cation exchange, and pyrite oxidation mainly occur in Taihui water, and these effects are enhanced after grouting. The saturation index results show that after grouting, the saturation index of dolomite, calcite, and gypsum is significantly reduced, and the saturation index of rock salt is slightly increased. The conclusion of this study is that the hydrochemical characteristics of Taihui water are greatly affected by fly ash cement. Moreover, because fly ash cement contains a lower calcium oxide content than ordinary Portland cement, the effect of fly ash cement on the ion concentration of Taihui water and the resulting hydrogeochemical effect are significantly different. Therefore, in the treatment of mine water disasters, the hydrogeochemical evolution law affected by fly ash cement grouting should be identified.

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The evolution characteristics of main waterways and their control mechanism in the radial sand ridges of the southern Yellow Sea

Cited by 12 publications

References 3 publications

Loss of habitat leads to loss of birds: reflections on the Jiangsu, China, coastal development plans

Loss of habitat leads to loss of birds: reflections on the Jiangsu, China, coastal development plans

Building for Nature: Preserving Threatened Bird Habitat in Port Design

Study on the Hydrochemical Characteristics and Evolution Law of Taiyuan Formation Limestone Water under the Influence of Grouting with Fly Ash Cement: A Case Study in Gubei Coal Mine of Huainan, China

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