Tourists take pictures of ginkgo trees in Yunnan University in Kunming, capital of southwest China's Yunnan Province, Dec. 6, 2017. On the campus of Yunnan University, there is a road sided with ginkgo trees. Each year during the late autumn and early winter, the beautiful scenery of ginkgo trees here would attract lots of tourists. (Xinhua/Yang Zongyou)

Women pose for photos under ginkgo trees at Yunnan University in Kunming, capital of southwest China's Yunnan Province, Dec. 6, 2017. On the campus of Yunnan University, there is a road sided with ginkgo trees. Each year during the late autumn and early winter, the beautiful scenery of ginkgo trees here would attract lots of tourists. (Xinhua/Yang Zongyou)

Women pose for photos under ginkgo trees at Yunnan University in Kunming, capital of southwest China's Yunnan Province, Dec. 6, 2017. On the campus of Yunnan University, there is a road sided with ginkgo trees. Each year during the late autumn and early winter, the beautiful scenery of ginkgo trees here would attract lots of tourists. (Xinhua/Yang Zongyou)

Photo taken on Dec. 6, 2017 shows ginkgo leaves on the ground of Yunnan University in Kunming, capital of southwest China's Yunnan Province. On the campus of Yunnan University, there is a road sided with ginkgo trees. Each year during the late autumn and early winter, the beautiful scenery of ginkgo trees here would attract lots of tourists. (Xinhua/Yang Zongyou)