| 我国复种指数变化特征、效益和潜力 |
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| 引用本文： | 郭柏林.我国复种指数变化特征、效益和潜力[J].经济地理,1997(3). |
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| 作者姓名： | 郭柏林 |
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| 作者单位： | 华东师范大学地理系!上海，200062 |
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| 摘 要： | 解放后，我国复种指数以中亚热带增幅最大，亚热带和热带是我国复种指数差异最大的地区，若能缩小这一差异，就是发挥复种潜力，进一步提高我国复种指数。
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| 关 键 词： | 复种指数 变化 |
THE ANALYSIS FOR THE CHANGE OF MULTIPLE CROPPING INDEX IN CHINA |
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| Guo Bailin.THE ANALYSIS FOR THE CHANGE OF MULTIPLE CROPPING INDEX IN CHINA[J].Economic Geography,1997(3). |
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| Authors: | Guo Bailin |
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| Abstract: | After liberation the middle subtropics was considered the most increasing extent for multiple cropping index in China. The subtropics and tropical differ the greatest for multiple cropping index in China. If the difference can be lessered, it will give full play to multiple cropping potentiality and multiple cropping index in China will be increased in a big margin. |
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| Keywords: | multiple cropping index change |
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