Environmental Trade-Offs from Coastal Reclamation: The Case of Cebu, Philippines

Montenegro, Lourdes O.

doi:10.1007/978-981-10-0141-3_11

Cited by 3 publications

(2 citation statements)

References 2 publications

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“…De Lange (2014) points that these governments trade off the socioenvironmental impact of reclamation against the socioeconomic benefits. Despite technology, the process of reclaiming land encroaches on the ecosystem (Montenegro, Diola, & Remedio, 2005). Peng, Chen, and Hong (2011) suggest that governments should charge the user for land reclamation, but this does not address the actual damage to the environment.…”

Section: Rural-urban Development Strategiesmentioning

confidence: 99%

Sustainable Philippine Cities and Habitat for the New Millennium

Santiago

Roxas

2016

Journal of Developing Societies

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More than a challenge, the overcrowding of cities, especially in developing countries, is an opportunity to pursue alternative growth corridors that include the interest of the poor. Current solutions to making urban cities more sustainable and resilient to climate change effects tend to disadvantage those who are already marginalized. A systems viewpoint shows that a means to decongest highly dense cities is to create new towns and cities as separate economic units. Instead of encouraging urban sprawl where rural areas still connect to urban centers, thus increasing daytime congestion, a new town evens out population and allows residents to be gainfully employed in areas where they live. This article explores the creation of new towns as a poverty mitigation approach to urban development as applied to an undeveloped property in Quezon province, located in the Philippines.

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Section: Rural-urban Development Strategiesmentioning

confidence: 99%

Sustainable Philippine Cities and Habitat for the New Millennium

Santiago

Roxas

2016

Journal of Developing Societies

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“…These projects also generate construction waste, which, if not disposed of properly, can harm public health and ecosystems (Yeheyis et al, 2013). Quarrying for urban expansion leads to soil instability, altered river flow, and increased flood and landslide risks (Esguerra et al, 2008), causing damage to underwater fauna and landfill issues in Cebu (Montenegro, 2016). The construction sector globally accounts for about 30% of resource extraction and 25% of solid waste (Benachio et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Predicting Compressive Strength of M20 Concrete with Partial Replacement of Coarse Aggregates by Nueva Ecija Sourced Recycled Portland Cement Concrete Pavement using XGBoost Algorithm

Cortez,

Notarte,

Apnoyan

2023

TheQUEST

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This research delves into the potential impact of replacing the coarse aggregates in M20 concrete with recycled concrete. The study aims to explore the possibility of recycling waste material from road construction to address sustainability challenges in the construction industry, especially in developing countries like the Philippines. The research adopts an experimental design involving preparing and testing recycled concrete aggregates, alongside sample preparation and testing. The study also employs the XGBoost machine learning algorithm to help predict the compressive strength of concrete. The XGBoost algorithm was trained using fine-tuned hyperparameters, and the model's evaluation was done using R-squared and Root Mean Squared Error. The research findings indicate a positive correlation between RCA content and compressive strength, with the average compressive strength of concrete mixtures increasing over time. The XGBoost outperforms the Multi Linear Regression model in predicting compressive strength, and incorporating RCA within the optimal range can enhance the strength properties of concrete. The study concludes that the XGBoost model with fine-tuned hyperparameters is reliable for predicting compressive strength, contributing to sustainable concrete production and reliable strength outcomes.

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Hydrogeochemical Evolution and Heavy Metal Contamination in Groundwater of a Reclaimed Land on Zhoushan Island

Zhang

Wang

et al. 2018

Water

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The need for valuable land has encouraged reclamation in coastal areas worldwide in the past decades. Land reclamation can alter the groundwater quality in coastal aquifers. The purpose of this study is to identify the effect of land reclamation on groundwater chemistry, especially the major ions, and heavy metals on Zhoushan Island, China. The subsurface media on the island is composed of two layers, i.e., an upper infill layer and an underlain clay layer. The upper layer is previously ocean and filled with various materials. The clay layer is the original marine sediment. The dominated Na and Cl ions in groundwater illustrate high salinity sources of groundwater in the subsurface of the reclaimed land. A mixing trend between seawater and river water of the groundwater in infill layer is also detected based on the ratios of Cl and Br. Though the heavy metal concentrations (Cd, Cr, Zn and Hg) are high in marine sediments, no significant releasing trends in the groundwater are detected in a short-term after reclamation (based on standard GB18668). Meanwhile, Fe-III concentrations in the aquifer have a strong correlation with precipitation events. Column desorption experiments and simulations indicate the Cd and Cr release from the sediment would pose a health risk when the groundwater in the infill layer being gradually flushed by fresh water. These results provide a foundation for the prediction of groundwater quality and are helpful for the future water management in a newly reclaimed land.

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Environmental Trade-Offs from Coastal Reclamation: The Case of Cebu, Philippines

Cited by 3 publications

References 2 publications

Sustainable Philippine Cities and Habitat for the New Millennium

Sustainable Philippine Cities and Habitat for the New Millennium

Predicting Compressive Strength of M20 Concrete with Partial Replacement of Coarse Aggregates by Nueva Ecija Sourced Recycled Portland Cement Concrete Pavement using XGBoost Algorithm

Hydrogeochemical Evolution and Heavy Metal Contamination in Groundwater of a Reclaimed Land on Zhoushan Island

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