![Photo taken on Sept. 14, 2018 shows autumn scenery of the Tianchi Lake in Arxan, north China\'s Inner Mongolia Autonomous Region. (Xinhua/Ren Junchuan)](http://www.ecns.cn/hd/2018/09/16/b58ab464144d4324be1fb546dffcc7a1.jpg)
Photo taken on Sept. 14, 2018 shows autumn scenery of the Tianchi Lake in Arxan, north China's Inner Mongolia Autonomous Region. (Xinhua/Ren Junchuan)
![Photo taken on Sept. 14, 2018 shows autumn scenery of the Tianchi Lake in Arxan, north China\'s Inner Mongolia Autonomous Region. (Xinhua/Ren Junchuan)](http://www.ecns.cn/hd/2018/09/16/acdef359ecf94e4cb01160a5a057d52b.jpg)
Photo taken on Sept. 14, 2018 shows autumn scenery of the Tianchi Lake in Arxan, north China's Inner Mongolia Autonomous Region. (Xinhua/Ren Junchuan)
![Photo taken on Sept. 14, 2018 shows autumn scenery of the Tianchi Lake in Arxan, north China\'s Inner Mongolia Autonomous Region. (Xinhua/Ren Junchuan)](http://www.ecns.cn/hd/2018/09/16/1739b178529043ce9ed20a29ba371e1c.jpg)
Photo taken on Sept. 14, 2018 shows autumn scenery of the Tianchi Lake in Arxan, north China's Inner Mongolia Autonomous Region. (Xinhua/Ren Junchuan)
![Photo taken on Sept. 15, 2018 shows autumn scenery of forest in Arxan, north China\'s Inner Mongolia Autonomous Region. (Xinhua/Ren Junchuan)](http://www.ecns.cn/hd/2018/09/16/fb6c3abdf9394ffe97ae519bd02c1e8d.jpg)
Photo taken on Sept. 15, 2018 shows autumn scenery of forest in Arxan, north China's Inner Mongolia Autonomous Region. (Xinhua/Ren Junchuan)
![Photo taken on Sept. 14, 2018 shows autumn scenery of the Wusulangzi Lake in Arxan, north China\'s Inner Mongolia Autonomous Region. (Xinhua/Ren Junchuan)](http://www.ecns.cn/hd/2018/09/16/5899e03fcf2042bf9cd77b4907fdb7f1.jpg)
Photo taken on Sept. 14, 2018 shows autumn scenery of the Wusulangzi Lake in Arxan, north China's Inner Mongolia Autonomous Region. (Xinhua/Ren Junchuan)