Earth observation-based coastal zone monitoring of the Yellow River Delta: Dynamics in China's second largest oil producing region over four decades

Kuenzer, Claudia; Ottinger, Marco; Liu, Gaohuan; Sun, Bо; Baumhauer, Roland; Dech, Stefan

doi:10.1016/j.apgeog.2014.08.015

Cited by 87 publications

(75 citation statements)

References 30 publications

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“…Since the reflectance of water is nearly equal to zero in reflective infrared bands of remote sensing, the reflectance of the majority of land cover is greater than water. As demonstrated in previous studies (e.g., Chu et al, 2006;Cui and Li, 2011;Kuenzer et al, 2014), remote sensing images normally display a distinct water-land boundary, which can be determined on a GIS platform.…”

Section: Data Extractionmentioning

confidence: 99%

“…Negative impacts of development include seawater intrusion due to reduced water and sediment discharges and associated weakening river dynamics in recent decades (e.g. Lian et al, 2008;Ottinger et al, 2013;Kuenzer et al, 2014).…”

Section: Geographic Characteristics Of the Study Areamentioning

confidence: 99%

“…Because the YRD has been continuously creating new land since its inception, the significant declines in the water and sediment supply to the delta over the last several decades have aroused considerable concerns for those interested in agriculture and socio-economic development and those concerned with wetland conservation for wildlife (Zhu et al, 2003;Wang et al, 2010;Kuenzer et al, 2014). To address these issues, several studies have estimated the minimum amount of sediment input and/or water supply required before net erosion of the YRD occurs.…”

Section: Critical Water and Sediment Supply For Land Accretionmentioning

confidence: 99%

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Progradation of the Yellow (Huanghe) River delta in response to the implementation of a basin-scale water regulation program

et al. 2015

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The water and sediment supply to the lower reach and estuary of the Yellow (Huanghe) River have been altered to a very significant degree by the construction of numerous small to large reservoirs and the progressive implementation of water and soil conservation measures across the entire drainage basin since the late 1950s, followed by a basin-scale water regulation program since 2002. There is an urgent need to know how progradation of the Yellow River delta (YRD), an area on which people live and farm, has continued and will continue to respond to these controls. This study examines the changing patterns of water and sediment supply to the YRD over the period of 1950-2013 and, using remote sensing, it evaluates the morphological changes of the delta during 1976-2013. Although both water and sediment input to the delta have been described as declining significantly since the mid 1960s, we show that since 2005 the supply of water has remained at around 20 billion m 3 yr −1 and that for sediment at about 0.13 billion t yr −1 ; water input has been even slightly increasing. The dynamics of extension/shrinking and avulsion in river-mouth channels and accretion/erosion of shorelines is an integrated response to the complex variations in both sediment and water supply. This study develops a quantitative relationship between water and sediment supply and the area of land accretion and it predicts the critical condition for land accretion in the YRD. To ensure that delta land will not be lost, care is needed in the future implementation of the basin-scale water regulation program.

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Section: Data Extractionmentioning

confidence: 99%

Section: Geographic Characteristics Of the Study Areamentioning

confidence: 99%

Section: Critical Water and Sediment Supply For Land Accretionmentioning

confidence: 99%

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Progradation of the Yellow (Huanghe) River delta in response to the implementation of a basin-scale water regulation program

et al. 2015

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“…The natural vegetation is composed of broadleaf deciduous forest (mainly Hankow willow and weeping willow), shrubbery (mainly Chinese tamarisk), and shore coppice [38]. The YRD is one of six of the most beautiful wetlands in China and an important energy base with more than 5 × 10 9 t petroleum and 2.3 × 10 11 m natural gas [23,39]. …”

Section: Study Areamentioning

confidence: 99%

Understanding Land Use and Land Cover Dynamics from 1976 to 2014 in Yellow River Delta

Zhang

Feng

et al. 2017

Land

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Long-term intensive land use/cover changes (LUCCs) of the Yellow River Delta (YRD) have been happening since the 1960s. The land use patterns of the LUCCs are crucial for bio-diversity conservation and/or sustainable development. This study quantified patterns of the LUCCs, explored the systematic transitions, and identified wetland change trajectory for the period 1976-2014 in the YRD. Landsat imageries of 1976, 1984, 1995, 2006, and 2014 were used to derive nine land use classes. Post classification change detection analysis based on enhanced transition matrix was applied to identify land use dynamics and trajectory of wetland change. The five cartographic outputs for changes in land use underlined major decreases in natural wetland areas and increases in artificial wetland and non-wetland, especially aquafarms, salt pans and construction lands. The systematic transitions in the YRD were wetland degradation, wetland artificialization, and urbanization. Wetland change trajectory results demonstrated that the main wetland changes were wetland degradation and wetland artificialization. Coastline change is the subordinate reason for natural wetland degradation in comparison with human activities. The results of this study allowed for an improvement in the understanding of the LUCC processes and enabled researchers and planners to focus on the most important signals of systematic landscape transitions while also allowing for a better understanding of the proximate causes of changes.

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“…S34 in Supplementary material). Increasing public access to nature reserves may also assist in reducing illegal activities, such as the installation of oil-wells in the core area of the Yellow River Delta NNR (Kuenzer et al 2014).…”

Section: Tourismmentioning

confidence: 99%

Shorebirds along the Yellow Sea coast of China face an uncertain future—a review of threats

Melville

Chen

2016

Emu - Austral Ornithology

108

107

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Abstract. Wetlands along the Yellow Sea coast of China, which are a major staging area for shorebirds in the East Asian-Australasian Flyway, are in a state of crisis that threatens the future of this migration system. Populations of many shorebirds in the Flyway have declined in recent decades at a time when there has been widespread loss of habitat and degradation of coastal wetlands around the Yellow Sea. Here we examine current threats to coastal wetlands along China's Yellow Sea coast based on field surveys in 2013 and 2014 and a review of the literature. Intertidal habitats have been lost to land claim or degraded through aquaculture and harvesting, as well as gross pollution and invasion of exotic Spartina, all of which have negatively affected shorebird foraging, roosting and breeding sites. Planned further development, if unchecked, will result in the loss of most of the remaining intertidal area, which is likely to result in calamitous declines in populations of many shorebirds. There is a need for immediate action to curb future land claim and to develop an integrated coastal management strategy. Further research on applied aspects of shorebird ecology is urgently needed to inform future policy development and decision making.

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Earth observation-based coastal zone monitoring of the Yellow River Delta: Dynamics in China's second largest oil producing region over four decades

Cited by 87 publications

References 30 publications

Progradation of the Yellow (Huanghe) River delta in response to the implementation of a basin-scale water regulation program

Progradation of the Yellow (Huanghe) River delta in response to the implementation of a basin-scale water regulation program

Understanding Land Use and Land Cover Dynamics from 1976 to 2014 in Yellow River Delta

Shorebirds along the Yellow Sea coast of China face an uncertain future—a review of threats

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