Carbon pools of semi-arid Picea crassifolia forests in the Qilian Mountains (north-eastern Tibetan Plateau)
Carbon pools of semi-arid Picea crassifolia forests in the Qilian Mountains (north-eastern Tibetan Plateau)
复制标题
祁连山（青藏高原东北部）半干旱青叶云杉林碳库
DOI：
10.1016/j.foreco.2015.02.001
复制
发表时间：
2015-05
影响因子：
3.7
通讯作者：
Hauck M
中科院分区：
文献类型：
--
作者：
Li X;Dulamsuren C;Leuschner C;Hauck M
这些森林中有许多存在于半干旱气候下，容易受到气候迅速变暖的影响，并受到强烈的人类影响。在海拔2600 ~ 2800 m的18个样地中，我们发现生态系统碳储量为348 Mg C ha - 1，其中地上活生物量和死生物量碳密度为43 Mg C ha - 1，根系碳密度为12 Mg C ha - 1，凋落物碳密度为3 Mg C ha - 1，土壤碳含量为305 Mg C ha - 1 （0 ~ 100 cm）。地下碳库超过了北方寒带森林报告的平均水平，温带的地带性森林植被甚至更明显。p中有机碳密度高。草叶林可能是由于土壤温度低和土壤湿度低而导致分解速度慢的结果。山地云杉林向灌木林地的广泛退化使生态系统碳储量减少了885 Mg C ha - 1，部分原因是土壤有机碳减少了15%。
The vast alpine grasslands of the Tibetan Plateau are lined by a belt of oroboreal coniferous forests in the transition zone to the Central Asian semi-deserts and deserts which may play important roles in the hydrology and biogeochemistry of the region. Many of these forests exist under semi-arid climates, are exposed to rapid climate warming and suffer from intensive human impact. We investigated the carbon stocks in biomass and soil in thePicea crassifolia(Qinghai spruce) forests of the Qilian Mountains, north-eastern Tibetan Plateau. In 18 forest plots at 2600–2800 m elevation, we found ecosystem carbon stocks of 348 Mg C ha−1with carbon densities of 43 Mg C ha−1in the live and dead aboveground biomass, 12 Mg C ha−1in roots, 3 Mg C ha−1in litter and 305 Mg C ha−1in the soil (SOC; 0–100 cm). The belowground carbon pools exceed averages reported for northern boreal forests and even more clearly for zonal forest vegetation in the temperate zone. The high SOC density in theP. crassifoliaforests are probably the result of slow decomposition rates due to low soil temperatures in combination with low soil moisture. The widespread degradation of mountain spruce forests to shrubland reduces the ecosystem carbon stock by >85 Mg C ha−1, and is partly caused by a 15%-reduction in SOC. We conclude that the remaining mountain forests of spruce and other conifers at the northern fringe of the Tibetan Plateau play an important role in the regional carbon budget and need urgent conservation.
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气候变化对祁连山青海云杉潜在分布的影响研究
影响因子：
--
作者：
Xu Zhonglin;Zhao Chuanyan;Feng Zhaodong
通讯作者：
Feng Zhaodong
影响因子：
3.2
作者：
Zhi-bin He;Wenzhi Zhao;Hu Liu;Zhenxing Tang
通讯作者：
Zhi-bin He;Wenzhi Zhao;Hu Liu;Zhenxing Tang
DOI：
--
发表时间：
2006
期刊：
--
影响因子：
--
作者：
Niu Yun
通讯作者：
Niu Yun
DOI：
10.1029/2002eo000314
发表时间：
2002-10
期刊：
Eos, Transactions American Geophysical Union
影响因子：
--
作者：
D. Schimel;T. Kittel;S. Running;R. Monson;A. Turnipseed;D. E. Anderson
通讯作者：
D. Schimel;T. Kittel;S. Running;R. Monson;A. Turnipseed;D. E. Anderson
影响因子：
6.2
作者：
Fellows, Aaron W.;Goulden, Michael L.
通讯作者：
Goulden, Michael L.