Erratum to: Environ Earth Sci DOI 10.1007/s12665-011-0902-6

Unfortunately the authors’ affiliations were incorrect.

The correct information is given below:

G. Zhao (✉)

Institute of Soil and Water Conservation, Northwest A & F University, Yangling 712100, People’s Republic of China

e-mail: guangjuzhao@yahoo.com

G. Zhao

Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling 712100, Shaanxi Province, People’s Republic of China

G. Zhao

Department of Hydrology and Water Resources Management, Institute of Natural Resources Conservation, Kiel University, Olshausenstr. 75, 24118 Kiel, Germany

J. Gao

Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, People’s of Republic of China

P. Tian

College of Water Resources and Architectural Engineering, Northwest A & F University, Yangling 712100, People’s of Republic of China

K. Tian · G. Ni

State Key Laboratory of Hydro-Science and Engineering, Department of Hydraulic Engineering, Tsinghua University, Beijing 100084, People’s Republic of China.