Tendency of land reclamation in coastal areas of Shanghai from 1998 to 2015

Zhang, Yuzhi; Chen, Ruishan; Wang, Yao

doi:10.1016/j.landusepol.2019.104370

Cited by 61 publications

(37 citation statements)

References 43 publications

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“…The State Council issued the Notice Strengthening the Protection of Coastal Wetlands and Strictly Controlling Reclamation . In 2018, the reclamation annual plan index and newly increased reclamation project approval except strategy projects with national significance were comprehensive cancelled [ 56 ]. It is apparent that the government, to alleviate the negative impacts on the marine/coastal environment and ecosystem services, is now strengthening the control of reclamation plans [ 10 ].…”

Section: Discussionmentioning

confidence: 99%

Land reclamation pattern and environmental regulation guidelines for port clusters in the Bohai Sea, China

Zhu

Xie

et al. 2021

PLoS ONE

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Coastal land reclamation (CLR), particularly port reclamation, is a common approach to alleviating land shortages. However, the spatial extent, percentages, and processes of these newly reclaimed ports are largely unknown. The Bohai Sea is the most concentrated area of port reclamation worldwide. Thus, this study addresses the changes in the different coastline types and port reclamation process in the area. The reclamation area of the 13 ports in the Bohai Sea in 2002–2018 was 2,300 km2, which decreased the area of the sea by 3%. The natural coastline length in Tianjin decreased by 47.5 km, whereas the artificial coastline length increased by 46.6 km. Based on the port boundary, however, only 26.3% of the reclaimed areas have been used for port construction, which concentrates in the Tianjin and Tangshan ports. The ratio of built-up area within the ports is only 32.5%, and approximately 48.3% of the reclaimed areas have no construction projects. The port land reclamation in the Bohai Sea has been undergoing periods of acceleration, peak, deceleration, and stagnation since 2002. Hence, future port reclamation should not be totally prohibited, and fine management should be conducted based on the optimization of the reclaimed port area. The innovation of this research is its analysis of the port internal land use pattern, the percentage of built-up area in the ports, and the sustainability of port reclamation policies. The findings have vital implications for scientifically regulating the spatial pattern and exploring the utility of port reclamation.

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Section: Discussionmentioning

confidence: 99%

Land reclamation pattern and environmental regulation guidelines for port clusters in the Bohai Sea, China

Zhu

Xie

et al. 2021

PLoS ONE

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“…The total amount of CBCS increased from 1659.44 × 10 4 Mg to 1789.78 ×10 4 Mg during 1990-2015 (Figure 3), though the amount of Shanghai's coastal carbon sequestration showed a decreasing trend in the three periods: 51. 28 The CBCS in natural wetlands, artificial wetlands and other lands showed an upward trend during 1990-2015, with a different growth rate in the three periods (1990)(1991)(1992)(1993)(1994)(1995)(1996)(1997)(1998)(1999)(2000)(2000)(2001)(2002)(2003)(2004)(2005)(2006)(2007)(2008)(2009) and 2009-2015) (Figure 4). The CBCS of the artificial wetlands and the other lands increased dramatically, with a growth rate of 422.45% and 37.3.82%, respectively, during 1990-2000, after which their growth rates decreased to 85.35% and 35.92%, respectively, during 2000-2009, and finally their growth rates decreased to 34.71% and 1.56%, respectively.…”

Section: Spatiotemporal Change In Cbcs In the Shanghai Coastal Areamentioning

confidence: 99%

“…In the negative humandriven processes of CBCS, reclamation had the most negative impact on the CBCS, which indicated that the negative impact of reclamation on CBCS cannot be ignored [13,27]. Previous studies indicated that reclamation had become one of the most widespread threats to coastal wetlands, which seriously affected the structure, function and service of coastal ecosystems [28]. In positive human-driven processes, restoration had an impact on the change in blue carbon storage, which also reflected that the ecological restoration project under human intervention could effectively weaken the negative impact of reclamation on CBCS [7,29].…”

Section: Spatiotemporal Change and Driving Processes Of Cbcsmentioning

confidence: 99%

Spatiotemporal Change and the Natural–Human Driving Processes of a Megacity’s Coastal Blue Carbon Storage

Cai

Zhu

Chen

et al. 2021

IJERPH

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Coastal blue carbon storage (CBCS) plays a key role in addressing global climate change and realizing regional carbon neutrality. Although blue carbon has been studied for some years, there is little understanding of the influence of a megacity’s complex natural and human-driven processes on CBCS. Taking the Shanghai coastal area as an example, this study investigated the spatiotemporal change in CBCS using the InVEST (Integrated Valuation of Ecosystem Services and Tradeoffs) model during 1990–2015, and analyzed the response of the CBCS to a megacity’s complex natural- and human-driven processes through a land use/land cover transition matrix and hierarchical clustering. The results were as follows: (1) Thirty-three driving processes were identified in the study area, including four natural processes (e.g., accretion, succession, erosion, etc.), two human processes (reclamation and restoration) and twenty-seven natural–human coupled processes; they were further combined into single and multiple processes with positive and negative influences on the CBCS into four types (Mono+, Mono−, Multiple+ and Multiple− driving processes). (2) Shanghai’s CBCS increased from 1659.44 × 104 Mg to 1789.78 ×104 Mg, though the amount of Shanghai’s coastal carbon sequestration showed a decreasing trend in three periods: 51.28 × 104 Mg in 1990–2000, 42.90 × 104 Mg in 2000–2009 and 36.15 × 104 Mg in 2009–2015, respectively. (3) There were three kinds of spatiotemporal patterns in the CBCS of this study area: high adjacent to the territorial land, low adjacent to the offshore waters in 1990; high in the central part, low in the peripheral areas in 2009 and 2015; and a mixed pattern in 2000. These patterns resulted from the different driving processes present in the different years. This study could serve as a blueprint for restoring and maintaining the CBCS of a megacity, to help mitigate the conflicts between socioeconomic development and the conservation of the CBCS, especially in the Shanghai coastal area.

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“…An increasing body of literature has focused on assessing spatiotemporal pattern of habitat quality [ 2 , 13 , 14 ], the impact of land consolidation on habitat quality [ 2 , 15 , 16 , 17 , 18 ], the relationship between habitat quality and landscape pattern [ 13 , 19 ], and the trade-off between habitat quality and other ecosystem services [ 20 , 21 , 22 ]. In terms of study areas, there are a plethora of studies focusing on urban areas, watersheds, nature reserve, etc.…”

Section: Introductionmentioning

confidence: 99%

Multi-Scenario Analysis of Habitat Quality in the Yellow River Delta by Coupling FLUS with InVEST Model

Ding

Chen

et al. 2021

IJERPH

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The past decades were witnessing unprecedented habitat degradation across the globe. It thus is of great significance to investigate the impacts of land use change on habitat quality in the context of rapid urbanization, particularly in developing countries. However, rare studies were conducted to predict the spatiotemporal distribution of habitat quality under multiple future land use scenarios. In this paper, we established a framework by coupling the future land use simulation (FLUS) model with the Intergrated Valuation of Environmental Services and Tradeoffs (InVEST) model. We then analyzed the habitat quality change in Dongying City in 2030 under four scenarios: business as usual (BAU), fast cultivated land expansion scenario (FCLE), ecological security scenario (ES) and sustainable development scenario (SD). We found that the land use change in Dongying City, driven by urbanization and agricultural reclamation, was mainly characterized by the transfer of cultivated land, construction land and unused land; the area of unused land was significantly reduced. While the habitat quality in Dongying City showed a degradative trend from 2009 to 2017, it will be improved from 2017 to 2030 under four scenarios. The high-quality habitat will be mainly distributed in the Yellow River Estuary and coastal areas, and the areas with low-quality habitat will be concentrated in the central and southern regions. Multi-scenario analysis shows that the SD will have the highest habitat quality, while the BAU scenario will have the lowest. It is interesting that the ES scenario fails to have the highest capacity to protect habitat quality, which may be related to the excessive saline alkali land. Appropriate reclamation of the unused land is conducive to cultivated land protection and food security, but also improving the habitat quality and giving play to the versatility and multidimensional value of the agricultural landscape. This shows that the SD of comprehensive coordination of urban development, agricultural development and ecological protection is an effective way to maintain the habitat quality and biodiversity.

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Tendency of land reclamation in coastal areas of Shanghai from 1998 to 2015

Cited by 61 publications

References 43 publications

Land reclamation pattern and environmental regulation guidelines for port clusters in the Bohai Sea, China

Land reclamation pattern and environmental regulation guidelines for port clusters in the Bohai Sea, China

Spatiotemporal Change and the Natural–Human Driving Processes of a Megacity’s Coastal Blue Carbon Storage

Multi-Scenario Analysis of Habitat Quality in the Yellow River Delta by Coupling FLUS with InVEST Model

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