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The grading of agroclimatic calamities for assessing mean annual loss rate of crops: a case study in Hebei province
Authors:LI Shuang-cheng  WANG Wei
Abstract:A mean annual loss rate(MALR) is a measure of the damaging degree of different crops to agroclimatic calamities such as waterlogging, strong win4 hail and dry-hot wind. It is useful for assessing regional insurance Premium. Based on the meteorological data observed from 1961 to 1993 in Hebei province and the damaging grades of some crops to meteorological disasters, we establish the index systems of agroclimatic calamities and then calculate the MALR with hierarchical models. Finally, GIS-based spatial maps on MALR has been employed to exhibit regional differentiation of mean annual loss rate of crops.
Keywords:Hebei province   mean annual loss late   agroclimatic disaster
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