清代青藏高原东北部河湟谷地林草地覆盖变化 |
| 吴致蕾, 刘峰贵, 张镱锂, 陈琼, 周强, 杨登兴 |
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Forest and grassland coverage change in the Yellow River-Huangshui River Valley in northeast Qinghai-Tibet Plateau during the Qing Dynasty |
| Zhilei WU, Fenggui LIU, Yili ZHANG, Qiong CHEN, Qiang ZHOU, Dengxing YANG |
| 图6 1726、1772、1806、1845、1878年草地减少空间分布图 |
| Fig.6 Spatial distribution of grassland coverage reduction in 1726, 1772, 1806, 1845, 1878 |
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