A research on assessing method of frost damage in winter wheat in Huanghuai area

Wei-dong Yu; Xue-fen Zhang

doi:10.1117/12.825791

20 August 2009 A research on assessing method of frost damage in winter wheat in Huanghuai area

Wei-dong Yu, Xue-fen Zhang

Proceedings Volume 7454, Remote Sensing and Modeling of Ecosystems for Sustainability VI; 74541C (2009) https://doi.org/10.1117/12.825791
Event: SPIE Optical Engineering + Applications, 2009, San Diego, California, United States

Abstract

Based on the relationship between yield of winter wheat at different growth stages and meteorological factors, the actual yield can be segregated step by step. Based on the yield data of reviving period to heading date without meteorological disasters, the ideal yield were calculated with Lagrange's Interpolation Polynomial and the yield loss rate affected by meteorological disasters have been assessed. By analyzing the degree of different meteorological disasters and their effect on yield from turning green period to heading date, the model of evaluation on late frost loss was defined. Take Shangqiu station as representative in Huanghuai Area, the yield loss caused by frost from 1980 to 2006 were simulated and analyzed. The results shows that the average rate of yield loss was 11.7% and the heavy disaster years of yield loss can be above 30%.

Citation Download Citation

Wei-dong Yu and Xue-fen Zhang "A research on assessing method of frost damage in winter wheat in Huanghuai area", Proc. SPIE 7454, Remote Sensing and Modeling of Ecosystems for Sustainability VI, 74541C (20 August 2009); https://doi.org/10.1117/12.825791

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