Divergent Shifts in Peak Photosynthesis Timing in Temperate and Alpine Grasslands in China Using an Improved Phenology Metric Extraction Method

Jilin Yang1, Jinwei Dong1, Xiangming Xiao2, Junhu Dai1, Chaoyang Wu1, Jianyang Xia3, Guosong Zhao1, Miaomiao Zhao1, Zhaolei Li Dr.1, Yao Zhang4 and Quansheng Ge1, (1)Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China, (2)Department of Microbiology and Plant Biology, Center for Spatial Analysis, University of Oklahoma, Norman, United States, (3)School of Ecological and Environmental Sciences, East China Normal University, Shanghai, China, (4)Department of Earth and Environmental Engineering, Columbia University, New York, United States