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Eight Mile Lake Research Watershed, Carbon in Permafrost Experimental Heating Research (CiPEHR) Extended sites: winter ecosystem respiration chamber measurements using snow removal method. Oct-Nov 2009, Oct-Dec 2011, Oct-Nov; March-April 2012, Feb-May 2013.

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DataONE2016-12-21 更新2024-06-26 收录
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https://search.dataone.org/view/https://pasta.lternet.edu/package/metadata/eml/knb-lter-bnz/553/7
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The Carbon in Permafrost Experimental Heating Research (CiPEHR) project addresses the following questions: 1) Does ecosystem warming cause a net release of C from the ecosystem to the atmosphere?, 2) Does the decomposition of old C, that comprises the bulk of the soil C pool, influence ecosystem C loss?, and 3) How do winter and summer warming alone, and in combination, affect ecosystem C exchange? We are answering these questions using a combination of field and laboratory experiments to measure ecosystem carbon balance and radiocarbon isotope ratios at a warming experiment located in an upland tundra field site near Healy, Alaska in the foothills of the Alaska Range. This dataset contains point measurements of winter ecosystem respiration fluxes using the snow removal method and the soil temperature, air temperature, and snow depth associated with each flux.

多年冻土碳实验加热研究(Carbon in Permafrost Experimental Heating Research, CiPEHR)项目旨在解答以下科学问题:1. 生态系统升温是否会导致碳从生态系统向大气发生净释放?2. 占土壤碳库主体的老旧碳的分解过程,是否会对生态系统碳流失产生影响?3. 单独开展冬季升温、夏季升温,以及二者联合升温的干预模式,会如何影响生态系统碳交换过程? 本研究通过野外与室内实验相结合的手段,于阿拉斯加山脉山麓、阿拉斯加州希利镇附近的高地苔原野外试验场开展升温实验,同步测定生态系统碳平衡与放射性碳同位素比值,以此解答前述科学问题。 本数据集包含采用除雪法获取的冬季生态系统呼吸通量点位监测数据,以及与各通量一一对应的土壤温度、空气温度与积雪深度数据。
创建时间:
2019-04-05
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