A beekeeper transports a beehive in a chestnut forest in Dawuli Township of Qian'an City, north China's Hebei Province, June 10, 2020. (Xinhua/Mu Yu)

Aerial photo taken on June 10, 2020 shows a view of chestnut trees in Dawuli Township of Qian'an City, north China's Hebei Province. (Xinhua/Mu Yu)

People ride past chestnut forests in Dawuli Township of Qian'an City, north China's Hebei Province, June 10, 2020. (Xinhua/Mu Yu)

Aerial photo taken on June 10, 2020 shows people riding past chestnut forests in Dawuli Township of Qian'an City, north China's Hebei Province. (Xinhua/Mu Yu)

A farmer works in a field among chestnut forests in Dawuli Township of Qian'an City, north China's Hebei Province, June 10, 2020. (Xinhua/Mu Yu)