Exploring the long-term dynamics of detailed wetland types and their driving forces in coastal metropolitan areas from 1990 to 2020

• DOI: 10.1016/j.jag.2024.104012
• Publication Date: 2024-07-13T06:34:18Z
• Authors: Kaifeng Peng; Weiguo Jiang; Peng Hou; Tiejun Cui; Zhifeng Wu; Beibei Si
• Keywords: Dynamics

The Guangxi Beibu Gulf Economic Zone (GBGEZ) and Guangdong–Hong Kong–Macao Greater Bay Area (GBA) have rich wetlands. However, long-term maps with detailed wetland types in these two regions are scarce, studies on the driving forces of changes insufficient. To this end, our study produced to explore dynamics their forces. From 1990 2020, mangrove, tidal flat, coastal shallow water reservoir had similar change trends metropolitan areas. For GBGEZ between serious degradation, slight obvious restoration areas 569.23 km2, 426.89 274.83 km2 375.78 respectively; for GBA, four 986.80 1854.63 547.34 2183.57 respectively. Overall, degradation GBA were significantly larger than that GBGEZ. Sample-based analysis indicated mainly attributed direct drivers, suffering more from influence drivers. Specifically, over 90 % degradations 89 restorations affected by drivers (e.g. aquaculture). Serious most land reclamation) 2010 indirect 2020 shrinkage). restorations, them factors expansion) while new reservoir). could offer valuable information support protection urban sustainable development.