Combine harvesters harvest wheat in the field in Heihe City, northeast China's Heilongjiang Province, Aug. 5, 2025. Heilongjiang Province, a major agricultural producer dubbed "China's grain barn," has seen its crops entering the ripening stage. (Photo by Lu Wenxiang/Xinhua)

An aerial drone photo taken on Aug. 5, 2025 shows combine harvesters harvesting wheat in the field in Heihe City, northeast China's Heilongjiang Province. Heilongjiang Province, a major agricultural producer dubbed "China's grain barn," has seen its crops entering the ripening stage. (Photo by Lu Wenxiang/Xinhua)

An aerial drone photo taken on Aug. 5, 2025 shows combine harvesters harvesting wheat in the field in Beian City, northeast China's Heilongjiang Province. Heilongjiang Province, a major agricultural producer dubbed "China's grain barn," has seen its crops entering the ripening stage. (Photo by Hou Yue/Xinhua)

Combine harvesters harvest wheat in the field in Beian City, northeast China's Heilongjiang Province, Aug. 5, 2025. Heilongjiang Province, a major agricultural producer dubbed "China's grain barn," has seen its crops entering the ripening stage. (Photo by Hou Yue/Xinhua)