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
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3 1995-2013年中国3种主粮各种物质与服务费用变化 |
| Fig. 3 Different types of materials and service costs for China's three main grain crops during 1995-2013 |
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