中国山区耕地利用边际化表现及其机理
李升发,李秀彬

Economic characteristics and the mechanism of farmland marginalization in mountainous areas of China
LI Shengfa,LI Xiubin
图12 中国山区县耕地、森林变化率与NDVI变化率的相关关系
Fig. 12 Correlation between farmland and forest change rate and the NDVI change rate within mountainous counties