Optimized estimation and its uncertainties of gross primary production over oasis-desert ecosystems in an arid region of China

Haibo Wang, School of Earth Sciences and Engineering, Nanjing University, Nanjing 210023, China, Nanjing, China, Xin Li, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, China, Jingfeng Xiao, University of New Hampshire, Earth Systems Research Center, Durham, United States and Mingguo Ma, School of Geographical Sciences, Southwest University, Chongqing, China