The online map of mild low temperature occurrence frequency in May for double cropped early rice in China is sourced from the Atlas of Agricultural Climate Resources in China - Volume of Agricultural Meteorological Disasters. It was published in October 2015 by Hangzhou: Zhejiang Science and Technology Press, with chief editors Mei Xurong, chief editors Liu Buchun, Huo Zhiguo, Mei Xurong, etc. The scale of this map is 1:18 000 000.
The yellow area on the map represents the disaster risk area for double cropping early rice cultivation.
The purple solid line in the map represents the frequency contour line (unit:%).
Purple G/D in the map represents relatively high/low value areas.
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