Between the devil and the deep blue sea: Trends, drivers, and impacts of coastal reclamation in Malaysia and way forward

Chee, Su Yin; Tan, Mou Leong; Tew, Yi Lin; Sim, Yee Kwang; Yee, Jean Chai; Chong, Amanda Kar Mun

doi:10.1016/j.scitotenv.2022.159889

Cited by 11 publications

(4 citation statements)

References 78 publications

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“…Sengupta et al (2020) found that since 1988, >700 km 2 of land reclamation has occurred in just eight Asian cities, with >35% of this happening in Shanghai alone. Similarly, Chee et al (2023) found that since 1991, >82 km 2 has been or will be reclaimed in Malaysia. Penang Island, Malaysia is one of the most densely populated, and fastest growing urban settlements globally (Chee et al, 2017) (see Figure 1).…”

Section: Boxes Box 1 the Palm Effectmentioning

confidence: 91%

Coastal greening of grey infrastructure: an update on the state-of-the-art

Firth,

Bone,

Bartholomew

et al. 2024

Proceedings of the Institution of Civil Engineers - Maritime En

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In the marine environment, greening of grey infrastructure (GGI) is a rapidly growing field that attempts to encourage native marine life to colonize marine artificial structures to enhance biodiversity, thereby promoting ecosystem functioning and hence service provision. By designing multifunctional sea defences, breakwaters, port complexes and off-shore renewable energy installations, these structures can yield myriad environmental benefits, in particular, addressing UN SDG 14: Life below water. Whilst GGI has shown great promise and there is a growing evidence base, there remain many criticisms and knowledge gaps, and some feel that there is scope for GGI to be abused by developers to facilitate harmful development. Given the surge of research in this field in recent years, it is timely to review the literature to provide an update update on the state-of-the-art of the field in relation to the many criticisms and identify remaining knowledge gaps. Despite the rapid and significant advances made in this field, there is currently a lack of science and practice outside of academic sectors in the developed world, and there is a collective need for schemes that encourage intersectoral and transsectoral research, knowledge exchange, and capacity building to optimize GGI in the pursuit of contributing to sustainable development.

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Section: Boxes Box 1 the Palm Effectmentioning

confidence: 91%

Coastal greening of grey infrastructure: an update on the state-of-the-art

Firth,

Bone,

Bartholomew

et al. 2024

Proceedings of the Institution of Civil Engineers - Maritime En

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show abstract

“…habitat, and fisheries by altering habitats, ecosystem structure, and biogeochemical cycles (Li et al, 2022; Wang et al, 2023). On the other hand, human activities are driven by economic development, policy control, population growth, and so forth (Chee et al, 2023), driving changes in ESs demand. Furthermore, the impact of human activities on ESs and the response of ESs to human activities may have lagged, and ESs have various trends (Filho et al, 2022; Hoque et al, 2022), making ESs linear or nonlinear (He et al, 2021), which in turn makes the dynamics of ESs supply and demand uncertain.…”

Section: Introductionmentioning

confidence: 99%

Guiding and constraining reclamation for coastal zone through identification of response thresholds for ecosystem services supply–demand relationships

Liu,

Yan,

Han

et al. 2024

Land Degrad Dev

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Enhancing the understanding and management of ecosystem services (ESs) supply and demand under the influence of global change is crucial for sustaining human well‐being and promoting sustainable development. However, the comprehension of changes in ecosystem service dynamics in the face of complex human disturbances remains limited. This study focuses on four representative ESs in the northern Liaodong Bay, a typical global estuary wetland, to elucidate alterations in the supply and demand of these ESs and comprehend the impact mechanisms arising from reclamation activities. The findings reveal the following key insights: between 1993 and 2020, the supply and demand for water yield disparity became increasingly pronounced, while the equilibrium between supply and demand for carbon storage shifted from surplus to balance. In contrast, the excess supply–demand of food supply and landscape esthetics remained relatively consistent. This study delves deeper into the non‐linear relationship between reclamation activities and ESs supply–demand relationships, with each ecosystem service exhibiting distinct patterns. As reclamation intensity rises, the supply–demand ratio of ESs exhibits varying trends: food supply and carbon storage demonstrate an inverted U‐shaped relationship, water yield follows a U‐shaped pattern, and landscape esthetics progressively decline. By identifying reclamation thresholds, different management strategies should be applied to areas exceeding and falling below these thresholds, with constraints and guidance being necessary for the former and the latter, respectively. These findings advance our understanding of ESs dynamics in the context of human‐driven changes and provide practical implications for sustainable ecosystem management in coastal areas.

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“…This rapid urbanization has spurred “ocean sprawl”, expanding human activity and infrastructure into coastal and marine areas [ 2 , 3 ]. Coastal structures like ports and harbours are vital for trade, transportation, and economic growth in these regions [ 4 , 5 ]. Concrete serves as the primary material for constructing these infrastructures due to its durability, strength, and adaptability [ 6 , 7 ].…”

Section: Introductionmentioning

confidence: 99%

Effects of poly(3-hydroxybutyrate) [P(3HB)] coating on the bacterial communities of artificial structures

Chai,

Syauqi,

Sudesh

et al. 2024

PLoS ONE

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The expanding urbanization of coastal areas has led to increased ocean sprawl, which has had both physical and chemical adverse effects on marine and coastal ecosystems. To maintain the health and functionality of these ecosystems, it is imperative to develop effective solutions. One such solution involves the use of biodegradable polymers as bioactive coatings to enhance the bioreceptivity of marine and coastal infrastructures. Our study aimed to explore two main objectives: (1) investigate PHA-degrading bacteria on polymer-coated surfaces and in surrounding seawater, and (2) comparing biofilm colonization between surfaces with and without the polymer coating. We applied poly(3-hydroxybutyrate) [P(3HB)) coatings on concrete surfaces at concentrations of 1% and 6% w/v, with varying numbers of coating cycles (1, 3, and 6). Our findings revealed that the addition of P(3HB) indeed promoted accelerated biofilm growth on the coated surfaces, resulting in an occupied area approximately 50% to 100% larger than that observed in the negative control. This indicates a remarkable enhancement, with the biofilm expanding at a rate roughly 1.5 to 2 times faster than the untreated surfaces. We observed noteworthy distinctions in biofilm growth patterns based on varying concentration and number of coating cycles. Interestingly, treatments with low concentration and high coating cycles exhibited comparable biofilm enhancements to those with high concentrations and low coating cycles. Further investigation into the bacterial communities responsible for the degradation of P(3HB) coatings identified mostly common and widespread strains but found no relation between the concentration and coating cycles. Nevertheless, this microbial degradation process was found to be highly efficient, manifesting noticeable effects within a single month. While these initial findings are promising, it’s essential to conduct tests under natural conditions to validate the applicability of this approach. Nonetheless, our study represents a novel and bio-based ecological engineering strategy for enhancing the bioreceptivity of marine and coastal structures.

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Between the devil and the deep blue sea: Trends, drivers, and impacts of coastal reclamation in Malaysia and way forward

Cited by 11 publications

References 78 publications

Coastal greening of grey infrastructure: an update on the state-of-the-art

Coastal greening of grey infrastructure: an update on the state-of-the-art

Guiding and constraining reclamation for coastal zone through identification of response thresholds for ecosystem services supply–demand relationships

Effects of poly(3-hydroxybutyrate) [P(3HB)] coating on the bacterial communities of artificial structures

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