Spring and summer potential flood risk in Northeast China

Qi，Wei1; Feng，Lian1; Yang，Hong2,3; Liu，Junguo1

2021-12-01

10.1016/j.ejrh.2021.100951

Journal of Hydrology: Regional Studies   影响因子和分区

2214-5818

Study region: Northeast China Study focus: Northeast China is an important region for industry and agriculture in China. In this region, investigations are lacking on the spatial distribution of snow melt contributions to the spring maximum runoff/discharge, and no studies have compared the spring and summer potential flood risks. Here, for the first time in Northeast China, we investigated the spatial distribution of snow melt contributions to spring maximum runoff/discharge and compared the spring and summer potential flood risks in terms of their spatial distributions, crop production and economic exposures. New hydrological insights for the region: We find that snow contributes approximately three-fourths of spring maximum floods from 1982 to 2011. On average, potential economic exposures to the summer and spring floods represent 3.9% and 0.4% of total GDP, respectively. Potentially exposed production of maize, rice and soybean to summer floods accounts for approximately 2.8% of the total, and potentially exposed wheat production to the spring floods accounts for 0.3% of the total. GDP growth amplifies increasing trends of potential economic exposure, while changes in potential crop production exposure are dominated by flood variations. This study is unique in that snow melt contributions to the spring maximum floods are quantified and that potential GDP and crop production exposure risks to spring and summer floods are quantified and compared for the first time in Northeast China.

Crop production Flood GDP Hydrological risk Northeast China Snow

SCI

英语

第一 ; 通讯

Young Scientists Fund of the National Natural Science Foundation of China[51809136] ; National Natural Science Foundation of China[41971304] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA20060402] ; Shenzhen Science and Technology Innovation Committee[JCYJ20190809155205559] ; Stable Support Plan Program of Shenzhen Natural Science Fund[20200925155151006] ; Shenzhen Science and Technology Program[KCXFZ20201221173007020] ; High-level Special Funding of the Southern University of Science and Technology["G02296302","G02296402"]

Water Resources

Water Resources

WOS:000712249000001

ELSEVIER

2-s2.0-85117809367

Scopus

1.School of Environmental Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
2.Eawag,Swiss Federal Institute of Aquatic Science and Technology,Duebendorf,Switzerland
3.Department of Environmental Science,MGU,University of Basel,Basel,Switzerland

Qi，Wei,Feng，Lian,Yang，Hong,et al. Spring and summer potential flood risk in Northeast China[J]. Journal of Hydrology: Regional Studies,2021,38.

Qi，Wei,Feng，Lian,Yang，Hong,&Liu，Junguo.(2021).Spring and summer potential flood risk in Northeast China.Journal of Hydrology: Regional Studies,38.

Qi，Wei,et al."Spring and summer potential flood risk in Northeast China".Journal of Hydrology: Regional Studies 38(2021).