Wetland Transitions and Protection under Rapid Urban Expansion: A Case Study of Pearl River Estuary, China

Zhao, Hui; Wang, Xiaodan; Cai, Yanjiang; Liu, Weilong

doi:10.3390/su8050471

Cited by 8 publications

(7 citation statements)

References 37 publications

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“…More proactively, the habitat protection actions need to further consider restoration measures in both coastal waters and surrounding landscape quality (Barbier et al, ; Fahrig, ; Stoms et al, ; Tallis, Ferdaña, & Gray, ; Wang et al, ). Measures to repair and restore local ecosystem function and hence habitat quality are urgently needed in sectors C, E and L, including settlement of created/restored wetlands (Meng, Hu, & Wang, ; Zhao, Bai et al, ), native mangroves (Tamin, Zakaria, Hashim, & Yin, ), salt marshes (Chang, Veeneklaas, Bakker, Daniels, & Esselink, ; Kelly & Condeso, ) and (where possible) artificial reefs along cemented coasts by coastal/estuarine zone management (Weinstein & Litvin, ; Zhao, Wang, Cai, & Liu, ). As many of the reclamation sites in sectors C, E and L accommodate large industrial factories, associated industrial sewage discharges require effective treatment and monitoring systems.…”

Section: Discussionmentioning

confidence: 99%

Long‐term habitat loss in a lightly‐disturbed population of the Indo‐Pacific humpback dolphin, Sousa chinensis

Peng

et al. 2017

Aquatic Conservation

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Coastal and estuarine waters are important ecosystems with high primary and secondary productivity, but they are prone to the impacts of habitat loss caused by anthropogenic activities. For species exclusively inhabiting coastal and estuarine waters, such as the Indo‐Pacific humpback dolphin, Sousa chinensis, irreversible habitat loss can have dramatic implications for population viability. A Landsat image database was used to determine the extent of coastal changes along the northern Beibu Gulf, where a large humpback dolphin population is found. The results were compared with the standardized sighting gradient (SPUF) determined from a questionnaire survey of fishermen and likely core habitats identified by application of a global digital elevation model. Both SPUF and likely core habitat results indicated a continuous distribution of the humpback dolphin along the northern Beibu Gulf. Landsat images revealed that 129.6 km2 of coastal waters were permanently lost in the past 40 years, 60 km2 within the likely core habitats. Although this may be considered small, the impact of such habitat loss could be substantial in some local habitats. The humpback dolphin population in the northern Beibu Gulf should be regarded as one management unit, with two or more social subunits. Immediate systematic surveys are needed to fill information gaps on true distribution range and habitat‐use patterns. Habitat protection actions for dolphins in the northern Beibu Gulf should include both core and linking habitats, including enacting protected areas in core habitats, mitigating anthropogenic impacts in likely habitats, restoring both coastal waters and surrounding landscape quality, effective treatment of industrial sewage discharge, and comprehensive environmental impact assessments for the planning of coastal development projects.

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Section: Discussionmentioning

confidence: 99%

Long‐term habitat loss in a lightly‐disturbed population of the Indo‐Pacific humpback dolphin, Sousa chinensis

Peng

et al. 2017

Aquatic Conservation

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“…As a region where the rivers of the Pearl River system meet and flow to the South China Sea, Guangzhou has abundant water resources, but is extremely vulnerable to floods. Over the past 40 years, the area of wetlands in Guangzhou has decreased dramatically; large areas of mudflats have been replaced with urban development [27] . To protect wetland resources and strengthen the city's resilience to floods, 20 WPs have been created in Guangzhou in the last decade [28] [29] .…”

Section: Research Areamentioning

confidence: 99%

“…This research has been ethically approved via The University of Sheffield's Ethics Review Procedure, as administered by the Department of Landscape Architecture. [26] 。珠江水系的三大干流东江、西江和北江在此汇集并注入中国南海，城市中水量丰沛，却也极易遭受洪水影响。在过去的40年中，广州的湿地面积急剧减少，大量的滩涂被城市建设所取代 [27] 。为保护湿地资源、增强抗洪防灾能力，广州近10年来建设了20座湿地公园 [28]…”

Section: Data Collectionunclassified

Using Social Media to Explore Perceptions of Ecosystem Services by Nature-Based Solution Projects

Zhai¹,

Lange²

2020

Landsc. Archit. Front.

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Introduction 1.1 Nature-Based Solutions and Perceptions of Ecosystem Services Human sustainable development is facing many challenges such as climate change, urbanization, water supply, and disaster risks. Nature-Based Solutions (NBS), which refer to actions inspired by, supported by, or copied from Nature [1] , have been proposed for coping with these challenges. NBS involves directly utilizing the ecosystems with minimum intervention and restoring the ecosystems by following natural laws. These cost-effective longterm solutions represent an interdisciplinary umbrella approach that encompasses experience from existing concepts such as "blue-green infrastructure" in Engineering, "natural capital" and "ecosystem services (ESs)" in Economics, and "landscape function" in Environmental Planning [2]~[4]. It aims to improve local ecological and social sustainability, to ensure long-term productivity [2][5] , and to sustain and potentially increase the ability to provide ESs to humans [2]. ESs are the direct or indirect benefits that people get from the ecosystem. Mainly, ESs are grouped into 4 categories: supporting, provisioning, regulating, and cultural. [6][7] There could be a cascade from ecosystem functions to ESs, and finally to benefits, indicating that the definition of an ES depends on human activities or wants [8]. Therefore, understanding public perceptions of ESs provided by NBS is crucial for the development and communication of sustainable management and policies [9]. Public satisfaction remains a key output that interests the managers of NBS projects [10] , and the participation and support of citizens in the management of blue-green infrastructure is usually upon their understanding of ESs [11]. Moreover, existing research has shown that sets of ESs could appear together repeatedly, as an ESs bundle [12]. Understanding the interconnections among ESs can help the managers with the synergy between ESs and promote management policies that improve the benefits to humans [13][14]. 1.2 Wetland Parks: A Nature-Based Solution Recent decades have seen a sharp decline and degradation of wetlands in China. From 1978 to 2008, the total area of the country's wetlands decreased by about 33% [15]. In the remaining natural wetlands, ecological functions are disappearing, and the ecosystems have deteriorated [16]. Since 2004, a large number of wetland parks (WPs), as an NBS, have been built in China to protect, compensate, and rationally utilize wetland resources [17]. Up to the end of 2017, in Chinese Mainland, a total of 1,699 WPs have been created [18]. The design and construction of WPs often employ three strategies: 1) inspired by natural wetlands (e.g., constructed vertical

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“…As a special ecological system, the urban wetland is an important part of the urban environment [45,46]. It plays an indispensable role in conserving water sources, preventing floods, ensuring urban security, regulating urban microclimate, and alleviating urban heat island effects [2,47,48]. With the rapid development of the social economy and the dramatic increase in population, the urban wetland has become fragmented.…”

Section: Introductionmentioning

confidence: 99%

Identification and Prediction of Wetland Ecological Risk in Key Cities of the Yangtze River Economic Belt: From the Perspective of Land Development

et al. 2021

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Rapid urbanization aggravates the degradation of wetland function. However, few studies have quantitatively analyzed and predicted the comprehensive impacts of different scenarios and types of human activities on wetland ecosystems from the perspective of land development. Combined with the Habitat Risk Assessment (HRA) model and the Cellular Automata (Ca)-Markov model, this study quantitatively measured the impact intensity and spatial distribution of different types of human activities on the wetland ecosystem in 2015, simulated and predicted the ecological pressure on the wetland in 2030, and identified the ecological risk hotspots of the Yangtze River waterfront along the upper, middle, and lower reaches of the Yangtze River Economic Belt. The results showed that the ecological risk of wetlands in the study area was low in the urban core and high in the suburbs. Construction activities posed a greater risk to wetlands. The intensity of human activities in the ecological protection scenario will be significantly lower than that in the natural development scenario in 2030. The waterfront in the middle and lower reaches of the Yangtze River will face more ecological risks. The results of the study can provide theoretical and technical support for wetland conservation policy formulation and waterfront development in the Yangtze River Economic Belt.

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Wetland Transitions and Protection under Rapid Urban Expansion: A Case Study of Pearl River Estuary, China

Cited by 8 publications

References 37 publications

Long‐term habitat loss in a lightly‐disturbed population of the Indo‐Pacific humpback dolphin, Sousa chinensis

Long‐term habitat loss in a lightly‐disturbed population of the Indo‐Pacific humpback dolphin, Sousa chinensis

Using Social Media to Explore Perceptions of Ecosystem Services by Nature-Based Solution Projects

Identification and Prediction of Wetland Ecological Risk in Key Cities of the Yangtze River Economic Belt: From the Perspective of Land Development

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