作者机构:[1]Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences/Key Laboratory of Resources Remote Sensing and Digital Agriculture, Ministry of Agriculture, Beijing 100081, P.R.China, [2]Center for Spatial Information Science, University of Tokyo, Tokyo 153-8505, Japan
相关基金:This work was financially supported by the National Natural Science Foundation of China (40930101, 40971218), the 948 Program, Ministry of Agriculture of China (2009-Z31), and the Foundation for National Non-Profit Scientific Institution, Ministry of Finance of China (IARRP-2010-2). All persons and institutes who kindly made their data available for this analysis were acknowledged.