Impacts of human activities on coastal ecological environment during the rapid urbanization process in Shenzhen, China

Lin, Yi; Chen, Jinsong; Zhang, Jin; Quan, Yiming; Han, Pengpeng; Guan, Shujing; Jiang, Xiaoli

doi:10.1016/j.ocecoaman.2018.01.005

Cited by 67 publications

(28 citation statements)

References 50 publications

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“…Overall the intensity of human interferenceinterference in this period first increased sharply, before gradually stablilising. This is consistent with the trends in GDP and permanent population size [40]. These findings reflect the variable features that drive the intensity of human interference during the transformation from industrial-based urbanisation to a science and technology focus.…”

Section: Discussionsupporting

confidence: 86%

“…Different patterns in regional landscapes are a reflection of the different effects of human activities. To express human activities in more detail, the landscape types were classified into positive and negative ecological elements [40], representing positive and negative ecological effects (Table 5). To accomplish this, an ecological interference index was built based on the Hemeroby index [41] to assess the impacts that different aspects of human activity have on coastal zones undergoing rapid urbanisation.…”

Section: Land Cover In Rapidly Urbanised Coastal Zonesmentioning

confidence: 99%

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Dynamic Evaluation of the Impact of Human Interference during Rapid Urbanisation of Coastal Zones: A Case Study of Shenzhen

et al. 2020

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Coastal ecosystems undergoing rapid urbanisation have characteristics of both natural and artificial ecosystems. How we evaluate the dynamic impact of human activities on coastal ecosystems is important for coastal zone management and development. In this study, we first developed a method to extract both the natural and artificial features of coastal land cover, and classified the coastal landscapes impacted by human activities from an ecological service perspective. We then constructed an ecological interference index for classification to evaluate the impact of coastal human interference on both artificial and natural ecosystems during rapid urbanisation. Lastly, we verified our method by applying it to the coastal zone in Shenzhen, China. Our results show that this method can describe the effects of human activities on coastal zones in more detail. The distribution of human activity was mainly associated with the geomorphology of the coastal zone. Changes in human interference were seen strongly in proximity to both the landward and coastal boundaries of the study area, in close correlation with the public’s increasing conscience for ecological environment protection.

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Section: Discussionsupporting

confidence: 86%

Section: Land Cover In Rapidly Urbanised Coastal Zonesmentioning

confidence: 99%

Dynamic Evaluation of the Impact of Human Interference during Rapid Urbanisation of Coastal Zones: A Case Study of Shenzhen

et al. 2020

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“…The reduction in HQ was the result of ecological land being occupied by constructed land, while the remaining habitats in the urban areas retained relatively good ecological conditions. The impact of urbanization on HQ is difficult to fully explain with the replacement of ecological land, which was also related to human demands in different urbanization stages [46]. Therefore, analyzing and quantifying the direct and indirect impacts of urbanization on HQ dynamics is necessary.…”

Section: The Necessity Of Distinguishing Urbanization Impacts On Habimentioning

confidence: 99%

“…Urbanization still exacerbated habitat degradation in this category. which was also related to human demands in different urbanization stages [46]. Therefore, analyzing and quantifying the direct and indirect impacts of urbanization on HQ dynamics is necessary.…”

Section: The Necessity Of Distinguishing Urbanization Impacts On Habimentioning

confidence: 99%

“…Assuming a nonlinear relationship between HQ and UI, there must exist at least one inflection point, indicating where the ecological impacts of urbanization will shift from having one influence to another. Predecessors have combined UI with vegetation surface conversion [40], land use transition [41,42], and the distance from anthropogenic threats [43,44] to understand the ecological impacts of urbanization, which has been investigated for multiple HQ aspects, such as biodiversity status [7,45], ecosystem services [39] and landscape patterns [46]. Comparing and summarizing the results of these studies, which are based on field observations and remote sensing approaches, is challenging.…”

Section: Introductionmentioning

confidence: 99%

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Spatiotemporal Analysis of the Nonlinear Negative Relationship between Urbanization and Habitat Quality in Metropolitan Areas

Zhu¹,

Ding²,

Li³

et al. 2020

Sustainability

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Urbanization intensity (UI) affects habitat quality (HQ) by changing land patterns, nutrient conditions, management, etc. Therefore, there is a need for studies on the relationship between UI and HQ and quantification of separate urbanization impacts on HQ. In this study, the relationship between HQ and UI and the direct and indirect impacts of urbanization on HQ were analyzed for the Yangtze River Delta Urban Agglomeration (YRDUA) from 1995 to 2010. The results indicated that the regional relationship between HQ and UI was nonlinear and negative, with inflection points where urbanization reached 20% and 80%. Furthermore, depending on different urbanization impacts, the relationship types generally changed from a steady decrease to stable in different cities. Negative indirect impacts accelerate habitat degradation, while positive impacts partially offset habitat degradation caused by land conversion. The average offset extent was approximately 28.23%, 17.41%, 22.94%, and 16.18% in 1995, 2000, 2005, and 2010, respectively. Moreover, the dependency of urbanization impacts on human demand in different urbanization stages was also demonstrated. The increasing demand for urban land has exacerbated the threat to ecological areas, but awareness about the need to protect ecological conditions began to strengthen after the antagonistic stage of urbanization.

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Spatiotemporal variation and sustainability of NDVI in the Yellow River basin

Dai

Cui

Wang

2022

Irrigation and Drainage

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Accurately determining vegetation coverage and its changes is very important to detect the effectiveness of the Grain for Green Project (GGP) in vegetation construction in the Yellow River basin. Moreover, an understanding of the impact of human activities and the future trends of vegetation cover allows for more effective maintenance of the achievements of ecological construction. Based on the normalized difference vegetation index (NDVI) of SPOT/ VEGETATION satellite remote sensing data from 2000 to 2017, the spatiotemporal patterns of the vegetative cover in the Yellow River basin in the last 18 years were studied using linear regression, residual analysis, and the Hurst index. The vegetation coverage of the Yellow River basin was higher in the southeast and lower in the northwest, with a relatively slow growth trend. The whole basin NDVI was relatively stable, and only approximately one-fifth of the region had a large fluctuation, mainly distributed in Ningxia and northern Shaanxi. The residual trend of the NDVI was positive in 87% of the areas in the basin, and the overall impact of human activities on the increase in NDVI was mainly promoted. The characteristics of vegetation change in the future with the same directionality were stronger than the reverse characteristics, but the area showing continuous degradation in the future still accounted for 7%, mainly distributed in Xining City, Lanzhou City, Ningxia Plain, Hetao Plain, etc., which needs further strengthening of ecological construction and protection. This study is helpful for predicting and evaluating the vegetation dynamics of the Yellow River basin under the background of GGP implementation and provides a theoretical basis for regional environmental protection and the future adjustment of GGP work.human disturbance, Hurst index, NDVI, spatiotemporal variation, Yellow River basin Résumé La détermination précise de la couverture végétale et de ses changements est très importante pour détecter l'efficacité du projet Grain for Green (GGP) dans la cultivation de la végétation dans le bassin fluvial de Jaune. En outre, la compréhension de l'impact des activités humaines et des tendances futures de la Article title in French: Variation spatiotemporelle et durabilite de NDVI dans le bassin fluvial de jaune.

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Impacts of human activities on coastal ecological environment during the rapid urbanization process in Shenzhen, China

Cited by 67 publications

References 50 publications

Dynamic Evaluation of the Impact of Human Interference during Rapid Urbanisation of Coastal Zones: A Case Study of Shenzhen

Dynamic Evaluation of the Impact of Human Interference during Rapid Urbanisation of Coastal Zones: A Case Study of Shenzhen

Spatiotemporal Analysis of the Nonlinear Negative Relationship between Urbanization and Habitat Quality in Metropolitan Areas

Spatiotemporal variation and sustainability of NDVI in the Yellow River basin

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