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1961—2019年三江源地区季节冻土冻融状态时空变化及影响因素研究
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Study on spatiotemporal changes of the freeze-thaw status of seasonally frozen ground and influencing factors in the Three Rivers Source Region from 1961 to 2019
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图7. 1961—2019年三江源地区冻结指数、融化指数时间序列 |
Fig. 7. The long-term trend of freezing and thawing index in the Three Rivers Source Region from 1961 to 2019 |
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