TY - Journal of Yangtze River Scientific Research Institute A1 - HE Qian, YANG Xue-qin, DAI Xiao-ai T1 - Variation Characteristics and Influence Factors of Net PrimaryProductivity of Vegetation in the Three-River Headwaters Regionfrom 2010 to 2015 Y1 - 2020-05-01 JF - Journal of Yangtze River Scientific Research Institute JO - Journal of Yangtze River Scientific Research Institute SP - 59 EP - 66 VL - 37 IS - 5 UR - http://ckyyb.crsri.cn N1 - 10.11988/ckyyb.20190138 ER -