河北省夏玉米气候适宜度及其变化特征分析
代立芹, 李春强, 魏瑞江
Climatic suitability of summer corn and its changes in Hebei province
DAI Liqin, LI Chunqiang, WEI Ruijiang
生态环境学报 . 2011, (7): 1031 -1036 .  DOI: 10.16258/j.cnki.1674-5906(2011)06-07-1031-06