中国山区耕地利用边际化表现及其机理
Economic characteristics and the mechanism of farmland marginalization in mountainous areas of China
注：2003年及以前缺少分省份净利润数据。
中国山区耕地利用边际化表现及其机理 |
| 李升发,李秀彬 |
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Economic characteristics and the mechanism of farmland marginalization in mountainous areas of China |
| LI Shengfa,LI Xiubin |
| 图8 中国山区与平原省份亩均玉米净利润变化 注：2003年及以前缺少分省份净利润数据。 |
| Fig. 8 Changes in profits of maize cultivation between mountainous and plain provinces and municipalities in China |
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