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2 1995年来中国3种主粮劳动力成本、农资和服务成本变化 |
| Fig. 2 The labor, materials and service costs for China's three main grain crops since 1995 |
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