Special issue on Understanding the Impact of Human Interventions on Estuarine Systems, Using Pearl River Delta as a Model System
• 大类 : 环境科学与生态学 - 3区
• 小类 : 海洋学 - 3区
• 小类 : 水资源 - 3区
The Pearl River Delta (PRD), located in the southern part of China, is the world’s largest urbanized area in both size and population, according to a World Bank report in 2015. Due to the intensive human interventions, e.g., dam constructions, sand excavation, land reclamation, dredging, bridge constructions etc., the hydrological regime of the Pearl River system has been substantially altered, making it one of the deltas most vulnerable to flooding in the world. For instance, the main morphological feature of the inner Pearl River Estuary, i.e. ‘three shoals and two channels’, has been changed tremendously owing to the substantial reduction of fluvial sediment load and local sand mining. Apparently, the impact of the human intervention has far exceeded that of the natural morphodynamic processes, and even lead to reverse of the natural dynamic trend (e.g., human-induced erosion/deposition regime shift of the estuarine system). Thus, the changes induced by human interventions can be categorized as ‘catastrophic shift’ in the estuarine system. The PRD is in urgent need of understanding the impact of these changes and looking for innovative management solutions, making it an ideal model system to explore the key questions related to sustainable delta management. As large-scale human interventions are widespread worldwide, the ‘catastrophic shift’ may not only affect PRD, but also impose great challenges to other deltas. The obtained knowledge from PRD can also serve other deltas under similar stresses.
Contributions from all disciplines around the topic of estuarine and coastal management in the Pearl River Delta are welcome, from hydrodynamics to morphodynamics, to ecosystem and water resources management. We invite estuarine scientists and experts to assess the potential anthropogenic impacts on the morphodynamics of the Pearl River system in order to reveal their implications for estuarine and coastal management.
Potential topics include but are not limited to the following:
- Assessing the impacts of human activities on the eco-geo-morphodynamics of estuarine system
- Coastal response to human interventions
- Integrated observation systems and modelling of eco-geo-morphodynamics of estuarine system
- Tide-river interaction and hydrodynamic changes
- Estuarine morphodynamics and sediment transport
- Coastal wetland vulnerability and nature-based coastal defence
- Innovative solutions towards a sustainable water management of estuarine systems considering impacts by intensive human interventions
- Learning lessons from other estuarine systems for sustainable and resilient estuaries and coasts