Temporal variation of sediment load in the Yellow River basin, China, and its impacts on the lower reaches and the river delta

Peng, Jun; Chen, Shenliang; Dong, Ping

doi:10.1016/j.catena.2010.08.006

Cited by 192 publications

(130 citation statements)

References 34 publications

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“…These two reservoirs are effective in protecting the Lower Yellow River and offer an excellent example of the consequences of reservoir sedimentation, sediment management strategies, and potential solutions to critical sedimentation problems (Jiang et al 2004;Wang et al 2005;Zhou and Zhang 2012). Over the past 58 years, from 1950 to 2007, the sediment trapping by the Sanmenxia and Xiaolangdi reservoirs accounts for 30 % of the total amount of reduction in the upper, middle, and lower reaches of the Yellow River basin (Peng et al 2010;Wang et al 2007). The praxis of sustainable water dispatching has also resulted in significant economic and social benefits (He et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Assessment of heavy metal contamination in the sediments from the Yellow River Wetland National Nature Reserve (the Sanmenxia section), China

Cheng

Wang

Huang

et al. 2015

Environ Sci Pollut Res

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The Yellow River Wetland National Nature Reserve (the Sanmenxia section) is an important area of the Yellow River for two important hydrologic gauging stations: the Sanmenxia reservoir and the Xiaolangdi reservoir. Seven sites along the section were selected: Jiziling, Dinghuwan, Houdi, Canglonghu, Shangcun, Wangguan, and Nancun. After the microwave digestion with aqua regia, concentrations of Cu, Pb, Cd, Cr, Zn, and Mn in the sediments were analyzed by flame atomic absorption spectrometry with air-acetylene flame. The results showed that all the concentrations of Cr detected were from the lithogenic source, and 63 % Mn, 48 % Pb, 41 % Cu, 20 % Cd, and 12 % Zn were from the anthropogenic source. The values of the index of geoaccumulation pointed out that there was moderate contamination of Mn at the Dinghuwan (1.04) and Houdi (1.00) sites (class 2), while the modified degree of contamination denoted that the contamination at the Houdi site (2.02) was moderate, nil to very low at the Nancun and Shangcun sites and low at the other sites, consisting with the tendency of pollution load index. For metal toxicity, the sediment pollution index indicated that the sediments of the Canglonghu site were low polluted, that of the Houdi site is nearly slightly contaminated, and those of others were natural and uncontaminated. It was vital to evaluate the degree of contamination with individual and overall elements and even with the metal toxicity. Cu, Pb, and Mn contaminations were aggravated in the Sanmenxia section, and there maybe was one of the main anthropogenic sources of these metals along the Yellow River. The findings were expected to update the current status of the heavy metal pollution in the Sanmenxia section as well as to create awareness concerning the sound condition of the whole reaches of the Yellow River.

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Section: Introductionmentioning

confidence: 99%

Assessment of heavy metal contamination in the sediments from the Yellow River Wetland National Nature Reserve (the Sanmenxia section), China

Cheng

Wang

Huang

et al. 2015

Environ Sci Pollut Res

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“…The Xiaolangdi Reservoir began storing water in 1999. Considerable siltation occurred in the reservoir after commissioning, with a total sediment trapping of 32.47 9 10 8 t from 1997 to 2007 (Peng et al 2010). The flow-sediment regulation scheme has greatly influenced wetland landscape patterns in the lower reach of the YR since 2002; As and Cd concentrations were significantly higher in both marsh soils after the regulation (Mitsch and Gosselink 2007;Bai et al 2012;Li et al 2009).…”

Section: Discussionmentioning

confidence: 99%

Comparison of arsenic and heavy metals contamination between existing wetlands and wetlands created by river diversion in the Yellow River estuary, China

et al. 2014

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Samples were collected at 71 sites in the Yellow River Delta Natural Reserve in December 2010 to represent soil conditions before and after the Yellow River (YR) diversion. The As, Cd, Cu, Pb, Zn, and Ni concentrations were measured to determine metal contamination levels. Results suggest that Cd concentrations were significantly higher after the YR diversion than before. The As, Cd, Cr, Cu, Ni, Pb, and Zn soil contamination indices did not exceed contamination levels, although the heavy metal content increased after the YR diversion. The mean concentrations of these heavy metals were lower than the Class I criteria. Correlation analysis shows significant correlations between As and Cr, Cu, Ni, Pb, and Zn concentrations both before and after the YR diversion. However, no significant correlations were observed between heavy metal concentration and pH before the diversion, and no heavy metal concentration was correlated with salinity. The principal component analysis indicates that these trace elements, including As, were closely correlated with each other and therefore likely originated from shared pollution sources before the diversion. These results are useful for assessing the heavy metal contamination and proposing feasible suggestions to improve soil quality.

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“…River delivers water and sediment from watershed to estuary [20]. The sediment is redistributed by marine processes [21] that delta can be defined as fluvio-marine landform.…”

Section: Introductionmentioning

confidence: 99%

The Morphodynamics of Wulan Delta and Its Impacts on the Coastal Community in Wedung Subdistrict, Demak Regency, Indonesia

Marfai¹,

Tyas²,

Nugraha³

et al. 2016

JEP

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Wulan Delta in Central Java has been experiencd coastal morphodynamics due to interface between Wulan River's sedimentation and Java sea's oceanographic process. This paper aims to analyze Wulan Delta's morphodynamics as well as its impacts on the socio-economic condition of the community. The morphodynamics is interpreted visually and digitally using a maximum livelihood analysis of multi-scale and multi-temporal images. The socio-economic impact is defined by field observations and in-depth interviews to the community and stakeholders. Analysis during the period of 1931-2010 showed that Wulan Delta had been changed morphologically from straight with small arc-like (arcuate) to bird-foot (digitate) with a plausible change into rounded (lobate) in the future, which represented dominant sedimentation by oceanographic rather than fluvial processes. Land expansion in Wulan Delta led to landuse change in Wedung, i.e. expansion of settlement area to 167 ha and fish pond area to 1014 ha in 2000-2010. Most settlements in the area, which are built linearly to river levees, own a high vulnerability to both river flood and tidal inundation. Therefore, dissemination about knowledge of the disaster and coastal zone management, as a means of increasing awareness, becomes necessary in integrating the coastal management in Wulan Delta together with improvement in infrastructure and proper regional development. The proper development strategy for the coastal village is aggressive maintenance strategy, including public infrastructure revitalization, quality improvement for human resources, and silvofishery system. Law enforcement on coastal zoning regulations is necessary to achieve an integrated and sustainable coastal zone management. * Corresponding author. M. A. Marfai et al.61

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Temporal variation of sediment load in the Yellow River basin, China, and its impacts on the lower reaches and the river delta

Cited by 192 publications

References 34 publications

Assessment of heavy metal contamination in the sediments from the Yellow River Wetland National Nature Reserve (the Sanmenxia section), China

Assessment of heavy metal contamination in the sediments from the Yellow River Wetland National Nature Reserve (the Sanmenxia section), China

Comparison of arsenic and heavy metals contamination between existing wetlands and wetlands created by river diversion in the Yellow River estuary, China

The Morphodynamics of Wulan Delta and Its Impacts on the Coastal Community in Wedung Subdistrict, Demak Regency, Indonesia

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