Carbon storage and long-term rate of accumulation in high-altitude Andean peatlands of Bolivia
Carbon storage and long-term rate of accumulation in high-altitude Andean peatlands of Bolivia
复制标题
玻利维亚高海拔安第斯泥炭地的碳储量和长期积累率
DOI：
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
R. Chimner
中科院分区：
文献类型：
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作者：
J. Hribljan;D. Cooper;J. Sueltenfuss;Evan C. Wolf;K. Heckman;E. Lilleskov;R. Chimner
玻利维亚西北部高海拔(4500米以上)的安第斯山脉包含许多泥炭地。尽管面临巨大的放牧压力和气候变化的潜在损害，但人们对这些泥炭地知之甚少。我们的目标是量化玻利维亚干旱的普纳生态区两个地区的泥炭地的碳库、基本年龄和长期泥炭堆积率：Sajama国家公园(Cordillera Ocsidentale)的Manasaya村附近和Tuni Condoriri国家公园(Cordillera Real)的泥炭地。我们在玛纳萨亚泥炭地取了5米深的岩心，在5米处的年龄约为3675年。BP，Larca为47g m-2 yr-1。然而，探测表明，最大深度为7-10米，(通过外推)总碳储量估计为1,040 mg ha-1。突尼斯泥炭体厚5.5米，始端约2560卡。是啊。BP。泥炭地碳储量为572 mg ha-1，长期碳积累速率为37gm-2yr-1。尽管玻利维亚普纳的环境干燥，但该地区拥有大量碳储量高、碳积累速度快的泥炭地。这些泥炭地被大量用作骆驼和羊驼的牧场。
The high-altitude (4,500+ m) Andean mountain range of north-western Bolivia contains many peatlands. Despite heavy grazing pressure and potential damage from climate change, little is known about these peatlands. Our objective was to quantify carbon pools, basal ages and long-term peat accumulation rates in peatlands in two areas of the arid puna ecoregion of Bolivia: near the village of Manasaya in the Sajama National Park (Cordillera Occidentale), and in the Tuni Condoriri National Park (Cordillera Real). We cored to 5 m depth in the Manasaya peatland, whose age at 5 m was ca. 3,675 yr. BP with a LARCA of 47 g m-2 yr-1. However, probing indicated that the maximum depth was 7-10 m with a total estimated (by extrapolation) carbon stock of 1,040 Mg ha-1. The Tuni peat body was 5.5 m thick and initiated ca. 2,560 cal. yr. BP. The peatland carbon stock was 572 Mg ha-1 with a long-term rate of carbon accumulation (LARCA) of 37 g m-2 yr-1. Despite the dry environment of the Bolivian puna, the region contains numerous peatlands with high carbon stocks and rapid carbon accumulation rates. These peatlands are heavily used for llama and alpaca grazing.