Impact of climate change on the blue water footprint of agriculture on a regional scale

Author:

Huang Huiping12,Han Yuping13,Jia Dongdong1

Affiliation:

1. North China University of Water Resources and Electric Power, Zhengzhou 450045, China

2. Collaborative Innovation Center of Water Resources Efficient Utilization and Support Engineering, Zhengzhou 450046, China

3. Henan Key Laboratory of Water Environment Simulation and Treatment, Zhengzhou 450046, China

Abstract

Abstract In the case study of Tangshan city, Hebei Province, China, this paper analyzes the temporal change of the blue agricultural water footprint (WF) during 1991–2016 and discusses the applicability of different climate change models during 2017–2050. Results show effective rainfall, wind speed and maximum temperature are leading factors influencing the blue agricultural WF. Relative error analysis indicates that the HadGEM2-ES model is the most applicable for climate change projections in the period of 2017–2050. Agricultural blue WF is about 1.8 billion m3 in RCP2.6, RCP4.5 and RCP8.5 emission scenarios, which is almost equal to the average value during 1991–2016.

Publisher

IWA Publishing

Subject

Water Science and Technology

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