Phase change in evolution of the modern Huanghe (Yellow River) Delta: Process, pattern, and mechanisms

Bi, Naishuang; Wang, Houjie; Wu, Xiao; Saito, Yoshiki; Xu, Congliang; Yang, Zuosheng

doi:10.1016/j.margeo.2021.106516

Cited by 35 publications

(41 citation statements)

References 89 publications

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“…After 1855 AD, the Huanghe changed its course to discharge into the BS. Extended distance between the modern Huanghe estuary and the southern YS resulted in only a portion of Huanghe derived sediment, 40-60 Mt yr −1 (Bi et al, 2011(Bi et al, , 2021, and terrestrial OC being transported into the southern YS, via the coastal current. In addition, the cut off of fluvial sediment supply to the Jiangsu coast caused the old Huanghe delta to be eroded under the interaction of tidal and coastal currents, which made the particles being transported to the southern YS being coarser.…”

Section: Schematic Diagram Of Huanghe Relocation On Organic Carbon Bu...mentioning

confidence: 99%

Influences of the 1855 AD Huanghe (Yellow River) Relocation on Sedimentary Organic Carbon Burial in the Southern Yellow Sea

Liu

Ding

et al. 2022

Front. Mar. Sci.

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The Huanghe (Yellow River) supplies large amount of sediments and terrestrial organic carbon (OC) to the eastern Chinese marginal seas. A relocation of the Huanghe outlet from the southern Yellow Sea (YS) to the Bohai Sea occurred in 1855 AD, however, detailed knowledge about the impact of this relocation on sedimentary source and OC burial in Chinese marginal seas is still critically lacking. In this study, we present total OC content and its isotope (δ13C), along with bulk total organic carbon (TOC)/total nitrogen (TN) molar ratio and lipid biomarker contents, in a sediment core HH12 from the southern YS with sediment age spanning the last 300 years. We find that TOC and terrestrial lipid biomarker mass accumulation rates were lower between 1855 AD and 1950 AD than that prior to 1855 AD in core HH12; and in accordance, both TOC/TN ratio and δ13C records indicate a gradual decrease of terrigenous source contributions to sedimentary OC. This suggests that the relocation of the Huanghe outlet reduced the transport of terrestrial OC to the southern YS. However, the δ13C record also indicates a relative increase of terrestrial OC contribution to sedimentary OC after 1950 AD, and the most likely explanation is increased contributions from the old Huanghe delta erosion and Korean rivers. Future studies should focus on better constraining the variations of terrestrial and marine endmembers with δ13C and Δ14C analyses of specific biomarkers to examine these linkages.

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Section: Schematic Diagram Of Huanghe Relocation On Organic Carbon Bu...mentioning

confidence: 99%

Influences of the 1855 AD Huanghe (Yellow River) Relocation on Sedimentary Organic Carbon Burial in the Southern Yellow Sea

Liu

Ding

et al. 2022

Front. Mar. Sci.

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“…It is a fan-shaped area formed by sedimentation of the Yellow River as it flows into the Bohai Sea, where newly formed wetlands are increasing at a rate of 30 km 2 per year. The terrain of the region is flat, with diverse types and complex geomorphic forms and an average slope of 2.14% [10,36,39,46]. Tidal creeks are widely distributed in the coastal areas on the north and south sides of the YRD.…”

Section: Study Areamentioning

confidence: 99%

Synergetic Classification of Coastal Wetlands over the Yellow River Delta with GF-3 Full-Polarization SAR and Zhuhai-1 OHS Hyperspectral Remote Sensing

et al. 2021

Remote Sensing

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The spatial distribution of coastal wetlands affects their ecological functions. Wetland classification is a challenging task for remote sensing research due to the similarity of different wetlands. In this study, a synergetic classification method developed by fusing the 10 m Zhuhai-1 Constellation Orbita Hyperspectral Satellite (OHS) imagery with 8 m C-band Gaofen-3 (GF-3) full-polarization Synthetic Aperture Radar (SAR) imagery was proposed to offer an updated and reliable quantitative description of the spatial distribution for the entire Yellow River Delta coastal wetlands. Three classical machine learning algorithms, namely, the maximum likelihood (ML), Mahalanobis distance (MD), and support vector machine (SVM), were used for the synergetic classification of 18 spectral, index, polarization, and texture features. The results showed that the overall synergetic classification accuracy of 97% is significantly higher than that of single GF-3 or OHS classification, proving the performance of the fusion of full-polarization SAR data and hyperspectral data in wetland mapping. The synergy of polarimetric SAR (PolSAR) and hyperspectral imagery enables high-resolution classification of wetlands by capturing images throughout the year, regardless of cloud cover. The proposed method has the potential to provide wetland classification results with high accuracy and better temporal resolution in different regions. Detailed and reliable wetland classification results would provide important wetlands information for better understanding the habitat area of species, migration corridors, and the habitat change caused by natural and anthropogenic disturbances.

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“…Notably, the erosion of the subaqueous delta and adjacent shelf zone may provide a sediment source to partly compensate for the decreasing fluvial sediment input, which could help to stabilize the shoreline and subaerial delta [76]. Although the grain size affects sediment cohesion and network stabilization, the sediment load plays a more important role in the sediment balance of the river delta and coastline evolution [48,77]. As for the Yellow River Delta, following Cui and Li (2011) [21], the progradationerosion patterns of the overall shoreline change can be divided into four stages as shown in Figure 6a-d: the rapid progradation stage (1977)(1978)(1979)(1980)(1981)(1982)(1983)(1984)(1985), progradation-erosion adjustment stage (1986)(1987)(1988)(1989)(1990)(1991)(1992)(1993)(1994)(1995), slow erosion stage (1996)(1997)(1998)(1999)(2000)(2001)(2002) and slow progradation stage (2003)(2004)(2005)(2006)(2007)(2008)(2009)(2010)(2011)(2012)(2013)(2014)(2015)(2016)(2017).…”

Section: Morphological Evolutionmentioning

confidence: 99%

Section: Morphological Evolutionmentioning

confidence: 99%

“…Other natural and anthropogenic factors could also affect the hydrological processes and hence morphological evolution of the delta, including precipitation, evaporation, irrigation, soil conservation measures, etc. [5,77]. Notably, the erosion of the subaqueous delta and adjacent shelf zone may provide a sediment source to partly compensate for the decreasing fluvial sediment input, which could help to stabilize the shoreline and subaerial delta [66].…”

Section: Conceptual Model Showing the Processes Of Dam-influenced Delta Evolutionmentioning

confidence: 99%

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A Tale of Two Deltas: Dam-Induced Hydro-Morphological Evolution of the Volta River Delta (Ghana) and Yellow River Delta (China)

Gao

Shao

et al. 2021

Water

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Previous studies mostly focus on an individual delta, or deltas at a global scale, to explore dam effects on deltaic hydrological alteration and morphological evolution, while comparative studies on selected similar deltas remain scarce. In this study, we compare the alteration of river discharge and sediment load, as well as the associated deltaic area and shoreline, of two deltas, namely, the Volta River Delta in Ghana and the Yellow River Delta in China, which are subject to similar forcings and mainstem dam influences. The results show that the sediment loads of the Volta River Delta and Yellow River Delta have decreased abruptly and gradually, respectively, to ~10% of the pre-dam level, presumably due to differences in reservoir capacity and upstream dam location. Sediment decline has led to a decrease of the fluvial dominance ratio, which has also been affected by the river mouth location and shoreline orientation. As a consequence, the area of the Volta River Delta has shifted to a new quasi-equilibrium, whereas the Yellow River Delta has kept prograding. This comparative study provides references for understanding the future evolution of similar deltas around the world.

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Phase change in evolution of the modern Huanghe (Yellow River) Delta: Process, pattern, and mechanisms

Cited by 35 publications

References 89 publications

Influences of the 1855 AD Huanghe (Yellow River) Relocation on Sedimentary Organic Carbon Burial in the Southern Yellow Sea

Influences of the 1855 AD Huanghe (Yellow River) Relocation on Sedimentary Organic Carbon Burial in the Southern Yellow Sea

Synergetic Classification of Coastal Wetlands over the Yellow River Delta with GF-3 Full-Polarization SAR and Zhuhai-1 OHS Hyperspectral Remote Sensing

A Tale of Two Deltas: Dam-Induced Hydro-Morphological Evolution of the Volta River Delta (Ghana) and Yellow River Delta (China)

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