Journal of Geographical Sciences ›› 2014, Vol. 24 ›› Issue (6): 1035-1046.doi: 10.1007/s11442-014-1136-9
• Research Articles • Previous Articles Next Articles
Erfu DAI1(), Ruixue ZHAI1,2, Quansheng GE1, Xiuqin WU3
Received:
2014-07-12
Accepted:
2014-08-08
Online:
2014-06-20
Published:
2014-06-20
About author:
Author: Dai Erfu (1972-), PhD and Professor, specialized in comprehensive study of physical geography, climate change and regional response, simulation of LUCC. E-mail:
Supported by:
Erfu DAI, Ruixue ZHAI, Quansheng GE, Xiuqin WU. Detecting the storage and change on topsoil organic carbon in grasslands of Inner Mongolia from 1980s to 2010s[J].Journal of Geographical Sciences, 2014, 24(6): 1035-1046.
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Table 1
Topsoil organic carbon stocks in grasslands of Inner Mongolia during the 1980s-2010s"
Grassland type | Area (104 km2) | SOC storage (1982-1988) | SOC storage (2011-2012) | ||
---|---|---|---|---|---|
Density (kg C·m-2) | Storage (Pg C) | Density (kg C·m-2) | Storage (Pg C) | ||
Meadow steppe | 17.25 | 5.80 | 1.00 | 6.65 | 1.15 |
Typical steppe | 28.96 | 3.31 | 0.96 | 3.41 | 0.99 |
Desert steppe | 12.56 | 0.70 | 0.09 | 0.27 | 0.03 |
Total | 58.77 | 3.48 | 2.05 | 3.69 | 2.17 |
Table 2
Changes of topsoil organic carbon stocks in grasslands of Inner Mongolia during the 1980s-2010s"
Grassland type | Area (104 km2) | Changes in SOC (1980s-2010s) | ||
---|---|---|---|---|
Variation (kg C·m-2) | Rate (g C·m-2·yr-1) | Total (Pg C) | ||
Meadow steppe | 17.25 | 0.85 | 28.33 | 0.15 |
Typical steppe | 28.96 | 0.10 | 3.33 | 0.03 |
Desert steppe | 12.56 | -0.43 | -14.33 | -0.06 |
Total | 58.77 | 0.21 | 7.00 | 0.12 |
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