Billings W D, Luken J O, Mortensen D A, Peterson K M
Department of Botany, Duke University, 27706, Durham, North Carolina, USA.
Department of Botany, Clemson University, 29631, Clemson, South Carolina, USA.
Oecologia. 1982 Apr;53(1):7-11. doi: 10.1007/BF00377129.
Intact cores from the wet coastal arctic tundra at Barrow, Alaska, were used as microcosms in the measurement of CO fluxes between peat, vegetation, and atmosphere under controlled conditions. Net ecosystem CO uptake was almost twice as high at present summer temperatures (4° C) than at 8°. Lowering the water table from the soil surface to -5 cm also had a pronounced effect in decreasing net ecosystem carbon storage. Warming of the tundra climate could change this ecosystem from a sink for atmospheric CO to a source.
从阿拉斯加巴罗潮湿的沿海北极苔原采集的完整土芯，被用作微观世界，用于在受控条件下测量泥炭、植被和大气之间的二氧化碳通量。在当前夏季温度（4°C）下，生态系统的净二氧化碳吸收量几乎是8°C时的两倍。将地下水位从土壤表面降至 -5厘米，对减少生态系统的净碳储量也有显著影响。苔原气候变暖可能会使这个生态系统从大气二氧化碳的汇转变为源。
