Wang, Shuai
Fu, Bojie
Piao, Shilong
Lü, Yihe
Ciais, Philippe
Feng, Xiaoming
Wang, Yafeng
Article History
Received: 7 September 2015
Accepted: 22 October 2015
First Online: 30 November 2015
Competing interests
: The authors declare no competing financial interests.