%0 Journal Article %J Limnology and Oceanography %D 2022 %T Biotic and abiotic factors control the geomorphic characteristics of channel networks in salt marshes %A Liu, Zezheng %A Gourgue, Olivier %A Fagherazzi, Sergio %B Limnology and Oceanography %V 67 %P 89–101 %8 jan %G eng %U https://onlinelibrary.wiley.com/doi/10.1002/lno.11977 %R 10.1002/lno.11977 %0 Journal Article %J Frontiers in Marine Science %D 2022 %T Long-term variations in water discharge and sediment load of the Pearl River Estuary: Implications for sustainable development of the Greater Bay Area %A Liu, Zezheng %A Fagherazzi, Sergio %A Liu, Xinhui %A Shao, Dongdong %A Miao, Chiyuan %A Cai, Yanzi %A Hou, Congyu %A Liu, Yeling %A Li, Xia %A Cui, Baoshan %X The water discharge and sediment load have been increasingly altered by climate change and human activities in recent decades. For the Pearl River, however, long-term variations in the sediment regime, especially in the last decade, remain poorly known. Here we updated knowledge of the temporal trends in the sediment regime of the Pearl River at annual, seasonal and monthly time scales from the 1950s to 2020. Results show that the annual sediment load and suspended sediment concentration (SSC) exhibited drastically decreased, regardless of water discharge. Compared with previous studies, we also found that sediment load and SSC reached a conspicuous peak in the 1980s, and showed a significant decline starting in the 2000s and 1990s, respectively. In the last decade, however, water discharge and sediment load showed slightly increasing trends. At the seasonal scale, the wet-season water discharge displays a decreasing trend, while the dry-season water discharge is increasing. At the monthly scale, the flood seasons in the North and East Rivers typically occur one month earlier than that in the West River due to the different precipitation regimes. Precipitation was responsible for the long-term change of discharge, while human activities (e.g. dam construction and land use change) exerted different effects on the variations in sediment load among different periods. Changes in the sediment regime have exerted substantial influences on downstream channel morphology and saltwater intrusion in the Greater Bay Area. Our study proposes a watershed-based solution, and provides scientific guidelines for the sustainable development of the Greater Bay Area. %B Frontiers in Marine Science %V 9 %G eng %U https://www.frontiersin.org/articles/10.3389/fmars.2022.983517 %0 Journal Article %J Journal of Cleaner Production %D 2021 %T Mismatch between watershed effects and local efforts constrains the success of coastal salt marsh vegetation restoration %A Liu, Zezheng %A Fagherazzi, Sergio %A Li, Jin %A Cui, Baoshan %B Journal of Cleaner Production %V 292 %P 126103 %8 apr %G eng %U https://linkinghub.elsevier.com/retrieve/pii/S0959652621003231 %R 10.1016/j.jclepro.2021.126103 %0 Journal Article %J Communications Earth & Environment %D 2021 %T Success of coastal wetlands restoration is driven by sediment availability %A Liu, Zezheng %A Fagherazzi, Sergio %A Cui, Baoshan %X Abstract Shorelines and their ecosystems are endangered by sea-level rise. Nature-based coastal protection is becoming a global strategy to enhance coastal resilience through the cost-effective creation, restoration and sustainable use of coastal wetlands. However, the resilience to sea-level rise of coastal wetlands created under Nature-based Solution has been assessed largely on a regional scale. Here we assess, using a meta-analysis, the difference in accretion, elevation, and sediment deposition rates between natural and restored coastal wetlands across the world. Our results show that restored coastal wetlands can trap more sediment and that the effectiveness of these restoration projects is primarily driven by sediment availability, not by wetland elevation, tidal range, local rates of sea-level rise, and significant wave height. Our results suggest that Nature-based Solutions can mitigate coastal wetland vulnerability to sea-level rise, but are effective only in coastal locations where abundant sediment supply is available. %B Communications Earth & Environment %V 2 %P 44 %8 dec %G eng %U http://www.nature.com/articles/s43247-021-00117-7 %R 10.1038/s43247-021-00117-7 %0 Journal Article %J Journal of Environmental Management %D 2020 %T Consumer control and abiotic stresses constrain coastal saltmarsh restoration %A Liu, Zezheng %A Fagherazzi, Sergio %A Ma, Xu %A Xie, Chengjie %A Li, Jin %A Cui, Baoshan %B Journal of Environmental Management %V 274 %P 111110 %8 nov %G eng %U https://linkinghub.elsevier.com/retrieve/pii/S0301479720310379 %R 10.1016/j.jenvman.2020.111110 %0 Journal Article %J Science of The Total Environment %D 2020 %T Efficient tidal channel networks alleviate the drought-induced die-off of salt marshes: Implications for coastal restoration and management %A Liu, Zezheng %A Fagherazzi, Sergio %A She, Xiaojun %A Ma, Xu %A Xie, Chengjie %A Cui, Baoshan %B Science of The Total Environment %V 749 %P 141493 %G eng %U https://linkinghub.elsevier.com/retrieve/pii/S0048969720350221 %R 10.1016/j.scitotenv.2020.141493