Aerial photo taken on Oct. 18, 2020 shows farmers harvesting rice in Jiangzhuang Village in Luanzhou, north China's Hebei Province. (Xinhua/Mu Yu)

Aerial photo taken on Oct. 18, 2020 shows rice fields in Jiangzhuang Village in Luanzhou, north China's Hebei Province. (Xinhua/Mu Yu)

Aerial photo taken on Oct. 18, 2020 shows rice fields in Jiangzhuang Village in Luanzhou, north China's Hebei Province. (Xinhua/Mu Yu)

Aerial photo taken on Oct. 18, 2020 shows a farmer harvesting rice in Jiangzhuang Village in Luanzhou, north China's Hebei Province. (Xinhua/Mu Yu)

Aerial photo taken on Oct. 18, 2020 shows a farmer harvesting rice in Jiangzhuang Village in Luanzhou, north China's Hebei Province. (Xinhua/Mu Yu)

A farmer drives a harvester at a rice field in Jiangzhuang Village in Luanzhou, north China's Hebei Province, Oct. 18, 2020. (Xinhua/Mu Yu)

A farmer drives a harvester at a rice field in Jiangzhuang Village in Luanzhou, north China's Hebei Province, Oct. 18, 2020. (Xinhua/Mu Yu)

A farmer harvests rice in Jiangzhuang Village in Luanzhou, north China's Hebei Province, Oct. 18, 2020. (Xinhua/Mu Yu)