1998-2012年中国耕地复种指数时空差异及动因 |
| 谢花林, 刘桂英 |
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Spatiotemporal difference and determinants of multiplecropping index in China during 1998-2012 |
| Hualin XIE, Guiying LIU |
| 图2 1998-2012年中国4大区域的耕地复种指数 |
| Fig. 2 Multiple cropping index in four regions of China from 1998 to 2012 |
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