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

2012 ◽  
Vol 23 (2) ◽  
pp. 162-169 ◽  
Author(s):  
Xiaodong Wu ◽  
Lin Zhao ◽  
Meijun Chen ◽  
Hongbing Fang ◽  
Guangyang Yue ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Soil Properties ◽  
Tibet Plateau ◽  
Vegetation Communities ◽  
Qinghai Tibet Plateau

scholarly journals Estimation of Soil Organic Carbon Storage in Palustrine Wetlands, China

2020 ◽  
Vol 17 (13) ◽  
pp. 4646
Author(s):  
Lu Han ◽  
Zhongmei Wan ◽  
Yuedong Guo ◽  
Changchun Song ◽  
Shaofei Jin ◽  
...  
Keyword(s):  
Data Collection ◽  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Measurement Data ◽  
Carbon Stocks ◽  
Tibet Plateau ◽  
Accurate Estimation ◽  
Organic Carbon Content ◽  
Actual Measurement ◽  
Qinghai Tibet Plateau

Wetlands regulate the balance of global organic carbon. Small changes in the carbon stocks of wetland ecosystem play a crucial role in the regional soil carbon cycle. However, an accurate estimation of carbon stocks is still be debated for China’s wetlands ecosystem due to the limitation of data collection and methodology. Here, we investigate the soil organic carbon (SOC) storage in a 1-m depth in China’s palustrine wetlands. A total of 1383 sample data were collected from palustrine wetlands in China. The data sources are divided into three parts, respectively, data collection from published literature, data from books, and actual measurement data of sample points. The results demonstrate that there is considerable SOC storage in China’s palustrine wetlands (9.945 Pg C), primarily abundant in the northeast, northwest arid and semi-arid as well as Qinghai-Tibet Plateau regions. The SOC density in per unit area soil was higher in the wetland area of northeast, southwest and Qinghai-Tibet plateau. Within China terrestrial scale, the temperature and precipitation differences caused by latitude were the main environmental factors affecting the organic carbon content. Furthermore, except for the southeast and south wetland region, SOC content decreased with depth.

scholarly journals Response of soil organic carbon to vegetation degradation along a moisture gradient in a wet meadow on the Qinghai-Tibet Plateau

2018 ◽  
Vol 8 (23) ◽  
pp. 11999-12010 ◽  
Author(s):  
Abdul-Rauf Malimanga Alhassan ◽  
Weiwei Ma ◽  
Guang Li ◽  
Zhirong Jiang ◽  
Jiangqi Wu ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Moisture Gradient ◽  
Tibet Plateau ◽  
Wet Meadow ◽  
Vegetation Degradation ◽  
Qinghai Tibet Plateau

Soil organic carbon stabilization by iron in permafrost regions of the Qinghai-Tibet Plateau

2016 ◽  
Vol 43 (19) ◽  
pp. 10,286-10,294 ◽  
Author(s):  
C. C. Mu ◽  
T. J. Zhang ◽  
Q. Zhao ◽  
H. Guo ◽  
W. Zhong ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Tibet Plateau ◽  
Carbon Stabilization ◽  
Qinghai Tibet Plateau ◽  
Permafrost Regions

Spatial variability of soil carbon, nitrogen, and phosphorus content and storage in an alpine wetland in the Qinghai - Tibet Plateau, China

Soil Research ◽  
2010 ◽  
Vol 48 (8) ◽  
pp. 730 ◽  
Author(s):  
Junhong Bai ◽  
Hua Ouyang ◽  
Rong Xiao ◽  
Junqin Gao ◽  
Haifeng Gao ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Spatial Variability ◽  
Exponential Model ◽  
Tibet Plateau ◽  
Nitrogen And Phosphorus ◽  
Alpine Wetland ◽  
Wetland Drainage ◽  
Grid Sampling ◽  
Qinghai Tibet Plateau

This study considers the spatial variability of soil organic carbon, nitrogen, and phosphorus storage in a drained alpine wetland and the possible relationships with soil properties. Top 0–0.30 m soil samples were collected in a typical alpine wetland in the south-eastern Qinghai–Tibet plateau using grid sampling. There was high spatial variability for soil organic carbon density (SOCD), soil total nitrogen density (STND), and soil total phosphorous density (STPD) in the drained alpine wetland. Spherical models best described the structure of the semivariograms for SOCD and STPD, and an exponential model for STND, with the range parameter of <4 m. Similar spatial distribution with lower or higher patches of C, N, and P storage were observed. SOCD, STND, and STPD were significantly negatively correlated with soil moisture (P < 0.01), and significantly positively correlated with bulk density (P < 0.01). However, no significant correlations were observed between SOCD, STND, and STPD and soil pH values. Wetland drainage might lead to higher C, N, and P densities in top 0.30 m soils due to peat compaction; thus, it is necessary to incorporate water table fluctuations or the whole depth of peat layers to estimating precisely C, N and P storage.

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