Techniques for comprehensive risk assessment of climatic drought in winter wheat production in Northern China

Ronghua Liu; Zixi Zhu; Wensong Fang; Youhe Wang; Zhihong Ma; Pengpeng Xu

doi:10.1117/12.732773

24 September 2007 Techniques for comprehensive risk assessment of climatic drought in winter wheat production in Northern China

Ronghua Liu, Zixi Zhu, Wensong Fang, Youhe Wang, Zhihong Ma, Pengpeng Xu

Author Affiliations +

Proceedings Volume 6684, Atmospheric and Environmental Remote Sensing Data Processing and Utilization III: Readiness for GEOSS; 66840X (2007) https://doi.org/10.1117/12.732773
Event: Optical Engineering + Applications, 2007, San Diego, California, United States

Abstract

Shortage of water supply in the growing season is the key condition to form a drought in the winter wheat production. Knowledge of risks brought about by the drought in winter wheat production is helpful in agricultural management. In this work, we investigated the intensities of droughts and probability of their occurrence as well as their impacts on the wheat yield based on water requirement by the crop and the nature of precipitation. Various techniques to comprehensively assess the risks of droughts in winter wheat production are exploited to develop the model of risk assessment of climatic droughts, the model of risk assessment of crop droughts, and the model of comprehensive risk assessment of crop-climatic droughts. The models are used in regional comprehensive risk assessment of droughts in winter wheat production in Northern China. A regionalization of risk levels is performed for this area. The results are helpful in adjusting the cropping arrangement and in carrying out agricultural managements to minimize or prevent the risk of droughts.

Citation Download Citation

Ronghua Liu, Zixi Zhu, Wensong Fang, Youhe Wang, Zhihong Ma, and Pengpeng Xu "Techniques for comprehensive risk assessment of climatic drought in winter wheat production in Northern China", Proc. SPIE 6684, Atmospheric and Environmental Remote Sensing Data Processing and Utilization III: Readiness for GEOSS, 66840X (24 September 2007); https://doi.org/10.1117/12.732773

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