TY - Journal of Yangtze River Scientific Research Institute A1 - GUO Hao, YUAN Jin-guo, WANG Jing-zhi, WANG Xiao-xin, LI Yan-cui, LIU Bo-han T1 - Spatio-temporal Evolution of Net Primary Productivity in Beijing-Tianjin-Hebei Region Based on MOD17A3 Data Y1 - 2023-07-01 JF - Journal of Yangtze River Scientific Research Institute JO - Journal of Yangtze River Scientific Research Institute SP - 66 EP - 72 VL - 40 IS - 7 UR - http://ckyyb.crsri.cn N1 - 10.11988/ckyyb.20220164 ER -