Fourthly, high temperature disasters generally declined before the 1980s and increased thereafter; low temperature disasters showed a decreasing trend overall.
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Research on atmospheric temperature change and its adaptive strategies in winter wheat and summer maize dual-cropping region of North China Plain during 1961-2021-A case study of Jiaozuo City in Henan Province.
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The sentences
The relative high temperature indices showed an increasing trend while the relevant low temperature indices tended to decrease.
There are four main conclusions about regional temperature change: (1) In terms of the mean temperature index, TMm had increased by 0.259 °C/10a, showing an obvious trend.