过去300 a大清河上游南部流域耕地变化重建
Reconstruction of cropland change in the southern area of the Daqing River Basin over the past 300 years
过去300 a大清河上游南部流域耕地变化重建 |
| 李俊, 叶瑜, 魏学琼 |
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Reconstruction of cropland change in the southern area of the Daqing River Basin over the past 300 years |
| Jun LI, Yu YE, Xueqiong WEI |
| 图5 清代耕地分布与河道变迁 |
| Fig.5 Cultivation ratio and change of the Daqing River channel in the Qing Dynasty |
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