Nat. Hazards Earth Syst. Sci., 21, 1473–1493, 2021 https://doi.org/10.5194/nhess-21-1473-2021 © Author(s) 2021. This work is distributed under the Creative Commons Attribution 4.0 License. Interacting effects of land-use change and natural hazards on rice agriculture in the Mekong and Red River deltas in Vietnam Kai Wan Yuen1, Tang Thi Hanh2, Vu Duong Quynh3, Adam D. Switzer1, Paul Teng4, and Janice Ser Huay Lee1 1Earth Observatory of Singapore, Asian School of the Environment, Nanyang Technological University, Singapore, Singapore 2Faculty of Agronomy, Vietnam National University of Agriculture, Hanoi, Vietnam 3Institute for Agricultural Environment, Hanoi, Vietnam 4S. Rajaratnam School of International Studies, Nanyang Technological University, Singapore, Singapore Correspondence: Kai Wan Yuen (
[email protected]) Received: 12 June 2020 – Discussion started: 13 July 2020 Revised: 20 February 2021 – Accepted: 28 March 2021 – Published: 12 May 2021 Abstract. Vietnam is a major rice producer, and much of the ronmental challenges. Given that deltas worldwide are glob- rice grown is concentrated in the Red River Delta (RRD) and ally significant for food production and are highly stressed the Mekong River Delta (MRD). While the two deltas are and degraded, a systems-thinking approach can be applied to highly productive regions, they are vulnerable to natural haz- provide a holistic and contextualized overview of the threats ards and the effects of human-induced environmental change. faced in each location. To show that the processes and issues affecting food secu- rity are reinforcing, interdependent and operating at multiple scales, we used a systems-thinking approach to represent the major linkages between anthropogenic land-use and natural 1 Introduction hazards and elaborate on how the drivers and environmental processes interact and influence rice growing area, rice yield A delta is defined as a low-lying sedimentary landform lo- and rice quality in the two deltas.