积雪对祁连山区黑河上游活动层热状态的影响研究
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张凤,范成彦,牟翠翠,孙文,彭小清,张廷军
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Influences of snow cover on the thermal state of the active layer in the upper reaches of the Heihe River in the Qilian Mountains
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Feng ZHANG,Chengyan FAN,Cuicui MU,Wen SUN,Xiaoqing PENG,Tingjun ZHANG
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表5 PT1和EB监测场融化期与冻结期划分及对应融化期与冻结期内平均温度
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Table 5 Freezing/thawing periods and soil temperature during these periods at PT1 and EB sites
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| 站点 | 融化期 | 冻结期 | 融化期平均温度/℃ | 冻结期平均温度/℃ |
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| PT1 | 2013-04-18/2013-10-09 | 2013-10-10/2014-05-05 | 1.11 | -5.07 | | 2014-05-06/2014-10-22 | 2014-10-23/Ad | 1.34 | — | | Ad/2015-10-14 | 2015-10-15/2016-05-17 | — | -4.72 | | 2016-05-18/Ad | Ad | — | — | | Ad/2017-10-20 | 2017-10-21/2018-05-12 | — | -4.68 | | 2018-05-13/2018-10-14 | 2018-10-15/Ad | 2.32 | — | | EB | Ad/2012-10-23 | 2012-10-24/2013-05-05 | — | -3.72 | | 2013-05-06/2013-10-25 | 2013-10-26/Ad | 2.74 | — | | Ad/2014-11-02 | 2014-11-03/Ad | — | — | | Ad/2015-11-10 | 2015-11-11/2016-04-30 | — | -4.21 | | 2016-05-01/2016-11-02 | 2016-11-03/2017-05-10 | 2.10 | -3.19 | | 2017-05-11/2017-10-29 | 2017-10-30/2018-05-07 | 2.05 | -3.70 | | 2018-05-08/2018-10-23 | 2018-10-23/Ad | 2.11 | — |
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