Soil Organic Carbon and Its Relationship to Vegetation Communities and Soil Properties in Permafrost Areas of the Central Western Qinghai‐Tibet Plateau, China (English)

In: Permafrost and Periglacial Processes   ;  23 ,  2  ;  162-169  ;  2012

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Soil organic carbon (SOC) contents were examined beneath two grassland vegetation communities and cold desert sites in permafrost areas of the central western part of the Qinghai‐Tibet Plateau. Mean SOC stocks in the top 150 cm were 7.73 kg m‐2 for Stipa roborowskyi communities and 3.72 kg m‐2 for Carex moorcroftii communities, but only 1.84 kg m‐2 for cold alpine desert. More than 80 per cent of SOC stocks beneath the grasslands were in the top 100 cm. Correlation analyses showed that SOC stocks in the top 150 cm are linked to soil moisture content, and the vertical distribution of SOC is mainly affected by depth and soil moisture content. Moisture content and vegetation communities are therefore important factors associated with SOC content in this cold, arid area, while active‐layer thickness, vegetation cover and topographical factors play non‐significant roles in SOC distribution. Copyright © 2012 John Wiley & Sons, Ltd.

Table of contents – Volume 23, Issue 2

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91
Origin and Flow Dynamics of Perennial Groundwater in Continuous Permafrost Terrain using Isotopes and Noble Gases: Case Study of the Fishing Branch River, Northern Yukon, Canada
Utting, Nicholas / Clark, Ian / Lauriol, Bernard / Wieser, Martin / Aeschbach‐Hertig, Werner | 2012
107
Internal Structure of a Lithalsa in the Akkol Valley, Russian Altai Mountains
Iwahana, Go / Fukui, Kotaro / Mikhailov, Nikolai / Ostanin, Oleg / Fujii, Yoshiyuki | 2012
119
The Impact of Permafrost Disturbances and Sediment Loading on the Limnological Characteristics of Two High Arctic Lakes
Dugan, Hilary A. / Lamoureux, Scott F. / Lewis, Ted / Lafrenière, Melissa J. | 2012
127
Rock Glacier Activity in the Retezat Mountains, Southern Carpathians, Romania
Vespremeanu‐Stroe, Alfred / Urdea, Petru / Popescu, Răzvan / Vasile, Mirela | 2012
138
Active Layer Characteristics At Ten Borehole Sites In Alpine Permafrost Terrain, Switzerland
Zenklusen Mutter, Evelyn / Phillips, Marcia | 2012
152
Earth Hummocks in West Dartmoor, SW England: Characteristics, Age and Origin
Killingbeck, James / Ballantyne, Colin K. | 2012
162
Soil Organic Carbon and Its Relationship to Vegetation Communities and Soil Properties in Permafrost Areas of the Central Western Qinghai‐Tibet Plateau, China
Wu, Xiaodong / Zhao, Lin / Chen, Meijun / Fang, Hongbing / Yue, Guangyang / Chen, Ji / Pang, Qiangqiang / Wang, Zhiwei / Ding, Yongjian | 2012
170
In‐Situ Observation of Cracks in Frozen Soil using Synchrotron Tomography
Bhreasail, Á. Ní / Lee, P. D. / O'Sullivan, C. / Fenton, C. H. / Hamilton, R. / Rockett, P. / Connolley, T. | 2012
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