[1]MAO Xiling,YIN Shuyan,LIU Haihong.Analysis of Agrometeorological Disasters Facing Extreme Climate Events in Hebei, Shandong, and Henan Provinces[J].Research of Soil and Water Conservation,2023,30(04):327-337.[doi:10.13869/j.cnki.rswc.2023.04.014.]
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
30
Number of periods:
2023 04
Page number:
327-337
Column:
Public date:
2023-06-10
- Title:
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Analysis of Agrometeorological Disasters Facing Extreme Climate Events in Hebei, Shandong, and Henan Provinces
- Author(s):
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MAO Xiling, YIN Shuyan, LIU Haihong
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(College of Geography and Tourism, Shaanxi Normal University, Xi'an 710119, China)
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- Keywords:
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extreme climate event; agricultural meteorological disaster; Hebei; Shandong; and Henan Provinces
- CLC:
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P467; S42
- DOI:
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10.13869/j.cnki.rswc.2023.04.014.
- Abstract:
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[Objective] The aim of this study is to research the temporal and spatial variation characteristics of extreme climate indices in Hebei, Shandong and Henan, and reveal the variation law of extreme climate events in the region and its impact on agricultural meteorological disasters, so as to provide scientific basis for rational utilization of climate resources in agricultural production and improvement of disaster prevention and mitigation capabilities. [Methods] Based on the data of 52 meteorological stations in Hebei, Shandong and Henan Provinces from 1960 to 2020 and the data of crop area affected from 1970 to 2019, the variation characteristics of extreme climate index were analyzed by linear regression, moving average, R/S analysis, IDW, Mann-Kendall and Pettitt test. The influence of extreme climate events on agrometeorological disasters was studied by grey correlation degree and correlation analysis. [Results] From 1960 to 2020, the climate in Hebei, Shandong and Henan Provinces showed a warming and drying trend, and the index of high temperature(low temperature)events showed an upward(downward)trend, and the climate had been warming year by year. The precipitation decreased slightly and the precipitation intensity increased slowly. In the future, the temperature in this area will continue to rise strongly, and the precipitation(precipitation intensity)will continue to decline(rise)weakly. In the past 61 years, the frequency and duration of extreme high temperature events in this area showed a large-scale upward trend, especially in northern Hebei and eastern Shandong. The frequency and duration of extreme low temperature events in central and southern Hebei and central Shandong decreased significantly. The extreme characteristics of precipitation in central Shandong and central and eastern Henan were significant. From 1970 to 2019, the disaster area(disaster rate)of crop flood, drought and hail in the study area showed a downward trend, and the disaster area(disaster rate)of low temperature freezing increased slightly. Drought and flood were the main agrometeorological disasters, and high temperature and precipitation had the most significant impact on them. [Conclusion] In the future, the crops in the central and northern Hebei and the central and eastern Shandong are more likely to be subjected to high temperature stress. The prevention of flood disasters in the central Shandong and the central and eastern Henan should be strengthened. The northeastern Hebei and western Henan should pay attention to sudden disasters such as wind hail and low temperature freezing.