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Large-scale flood risk assessment under different development strategies: the Luanhe River Basin in China

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posted on 05.08.2022, 15:39 authored by Jiaheng Zhao, Huili ChenHuili Chen, Qiuhua LiangQiuhua Liang, Xilin Xia, Jiren Xu, Trevor Hoey, Brian Barrett, Fabrice G Renaud, Lee BosherLee Bosher, Xin Zhou
Increasing resilience to natural hazards and climate change is critical for achieving many Sustainable Development Goals (SDGs). In recent decades, China has experienced rapid economic development and became the second-largest economy in the world. This rapid economic expansion has led to large-scale changes in terrestrial (e.g., land use and land cover changes), aquatic (e.g., construction of reservoirs and artificial wetlands) and marine (e.g., land reclamation) environments across the country. Together with climate change, these changes may significantly influence flood risk and, in turn, compromise SDG achievements. The Luanhe River Basin (LRB) is one of the most afforested basins in North China and has undergone significant urbanisation and land use change since the 1950s. However, basin-wide flood risk assessment under different development scenarios has not been considered, although this is critically important to inform policy-making to manage the synergies and trade-offs between the SDGs and support long-term sustainable development. Using mainly open data, this paper introduces a new framework for systematically assessing flood risk under different social and economic development scenarios. A series of model simulations are performed to investigate the flood risk under different land use change scenarios projected to 2030 to reflect different development strategies. The results are systematically analysed and compared with the baseline simulation based on the current land use and climate conditions. Further investigations are also provided to consider the impact of climate change and the construction of dams and reservoirs. The results potentially provide important guidance to inform future development strategies to maximise the synergies and minimise the trade-offs between various SDGs in LRB.

Funding

River basins as 'living laboratories' for achieving sustainable development goals across national and sub-national scales

Natural Environment Research Council

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History

School

  • Architecture, Building and Civil Engineering

Published in

Sustainability Science

Volume

17

Issue

4

Pages

1365 - 1384

Publisher

Springer Science and Business Media LLC

Version

VoR (Version of Record)

Rights holder

© The Authors

Publisher statement

This is an Open Access Article. It is published by Springer under the Creative Commons Attribution 4.0 International Licence (CC BY 4.0). Full details of this licence are available at: https://creativecommons.org/licenses/by/4.0/

Acceptance date

30/08/2021

Publication date

2021-10-11

Copyright date

2021

ISSN

1862-4065

eISSN

1862-4057

Language

en

Depositor

Prof Lee Bosher. Deposit date: 15 October 2021