A systematic review of research studies on the estimation of net primary productivity in the Three-River Headwater Region, China
Qingling SUN, Baolin LI, Chenghu ZHOU, Fei LI, Zhijun ZHANG, Lingling DING, Tao ZHANG, Lili XU
Journal of Geographical Sciences . 2017, (2): 161 -182 .  DOI: 10.1007/s11442-017-1370-z