Spatial and Temporal Variation Characteristics of the Main Agricultural Inputs in Sichuan Province and the Influencing Factors
WANG Qi, ZHANG Hui, LIAO Gui-tang, LAN Ting, GAO Xue-song, QIAO Shan-bao, YAO Xing-zhu
Journal of Ecology and Rural Environment . 2018, (8): 717 -725 .  DOI: 10.11934/j.issn.1673-4831.2018.08.007