QI Yuchun, DONG Yunshe, PENG Qin, XIAO Shengsheng, HE Yating, LIU Xinchao, SUN Liangjie, JIA Junqiang, YANG Zhijie . Effects of a conversion from grassland to cropland on the different soil organic carbon fractions in Inner Mongolia, China[J]. Journal of Geographical Sciences, 2012 , 22(2) : 315 -328 . DOI: 10.1007/s11442-012-0929-y

Buckingham S, Tipping E, Hamilton-Taylor J, 2008. Concentrations and fluxes of dissolved organic carbon in UK topsoils. Science of the Total Environment, 407: 460-470.
Chen Z Z, Wang S P, 2000. Typical Grassland Ecosystem in China. Beijing: Science Press, 1. (in Chinese)
Chen F S, Zeng D H, Chen G S et al., 2004. Effects of reclamation on soil organic carbon of some meadow soils. Chinese Journal of Soil Science, 35(4): 413-419. (in Chinese)
Chen S Q, Liu J Y, Zhuang D F et al., 2003. Quantifying land use and land cover change in Xilin River Basin using multi-temporal landsat TM/ETM sensor data. Acta Geographica Sinica, 58: 45-52. (in Chinese)
Cookson W R, Osman M, Marschner P et al., 2007. Controls on soil nitrogen cycling and microbial community composition across land use and incubation temperature. Soil Biology and Biochemistry, 39: 744-756.
Delprat L, Chassin P, Linères M et al., 1997. Characterization of dissolved organic carbon in cleared forest soils converted to maize cultivation. European Journal of Agronomy, 7: 201-210.
Franzluebbers A J, 2005. Soil organic carbon sequestration and agricultural greenhouse gas emissions in the southeastern USA. Soil and Tillage Research, 83: 120-147.
Gao Z Q, Liu J Y, Cao M K et al., 2004. Impacts of land use and climate change on regional net primary productivity. Journal of Geographical Sciences, 14: 349-358.
Garten Jr C T, Post III W M, Hanson P J et al., 1999. Forest soil carbon inventories and dynamics along an elevation gradient in the southern Appalachian Mountains. Biogeochemistry, 45: 115-145.
Haynes R J, 2000. Labile organic matter as an indicator of organic matter quality in arable and pastoral soils in New Zealand. Soil Biology and Biochemistry, 32: 211-219.
Houghton R A, 1995. Changes in the storage of terrestrial carbon since 1850. In: Lal R, Kimble J, Levine E et al. (eds), Soils and global change. Boca Raton, FL: CRC Press, 45-65.
Houghton R A, 2003. Revised estimates of the annual net flux of carbon to the atmosphere from changes in land use and land management 1850-2000. Tellus, 55 B: 378-390.
Huang S, Sun Y N, Rui W Y et al., 2010. Long-term effect of no-tillage on soil organic carbon fractions in a continuous maize cropping system of Northeast China. Pedosphere, 20(3): 285-292.
Jiang H M, Jiang J P, Jia Y et al., 2006. Soil carbon pool and effects of soil fertility in seeded alfalfa fields on the semi-arid Loess Plateau in China. Soil Biology and Biochemistry, 38: 2350-2358.
Jiao Y, Xu Z, Zhao J H, 2009. Effects of grassland conversion to cropland and forest on soil organic carbon and dissolved organic carbon in the farming-pastoral ecotone of Inner Mongolia. Acta Ecologica Sinica, 29: 150-154.
Kalbitz K, Schwesig D, Schmerwitz J et al., 2003. Changes in properties of soil-derived dissolved organic matter induced by biodegradation. Soil Biology and Biochemistry, 35: 1129-1142.
Lal R, 2000. Carbon sequestration in drylands. Annals of Arid Zone, 39: 1-10.
Lal R, 2002. Soil carbon dynamics in cropland and rangeland. Environmental Pollution, 116: 353-362.
Lal R, 2004. Soil carbon sequestration to mitigate climate change. Geoderma, 123: 1-22.
Li F M, Song Q H, Jjemba P K et al., 2004. Dynamics of soil microbial biomass C and soil fertility in cropland mulched with plastic film in a semiarid agro-ecosystem. Soil Biology and Biochemistry, 36: 1893-1902.
Li X G, Li F M, Singh B et al., 2007a. Soil management changes organic carbon pools in alpine pastureland soils. Soil and Tillage Research, 93: 186-196.
Li X G, Wang Z F, Ma Q F et al., 2007b. Crop cultivation and intensive grazing affect organic C pools and aggregate stability in arid grassland soil. Soil and Tillage Research, 95: 172-181.
Li Y M, Wang Y S, Cao G M et al., 2005. Preliminary research of effect of cultivation on soil organic carbon in alpine meadow. Progress in Geography, 24(6): 59-65. (in Chinese)
Liang A Z,Yang X M, Zhang X P et al., 2009. Soil organic carbon changes in particle-size fractions following cultivation of black soils in China. Soil and Tillage Research, 105(1): 21-26.
Liebig M A, Gross J R, Kronberg S L et al., 2006. Soil response too long-term grazing in the northern Great Plains of North America. Agriculture, Ecosystems and Environment, 115: 270-276.
Lu J F, You L Y, Chen H et al., 2004. Assessment of ecological security and adjustment of land use in Xilinhaote City of Inner-Mongolia. Resources Science, 26(2): 108-114. (in Chinese)
Ma Q, Yu W T, Zhao S H et al., 2007. Relationship between water-stable aggregates and nutrients in black soils after reclamation. Pedosphere, 17: 538-544.
Ma X Z, 2006. Effects of cultivation and grazing on soil carbon pool and greenhouse gases fluxes in the Inner Mongolia steppes
[D]. Beijing: Institute of Botany, Chinese Academy of Sciences, 44-51. (in Chinese)
Mao Y L, Yang Y S, Cui J C et al., 2008. Effects of land use on the distribution of soil active organic carbon. Journal of Fujian College of Forestry, 28(4): 338-342. (in Chinese)
Post W M, Kwon K C, 2000. Soil carbon sequestration and land-use change: Processes and potential. Global Change Biology, 6: 317-328.
Prentice I C, Farquhar G D, Fasham M J R et al., 2001. The carbon cycle and atmospheric carbon dioxide. In: Houghton J T, Ding Y, Griggs D J et al. (eds.), Climate Change 2001: The Scientific Basis. Cambridge: Cambridge University Press, 183-237.
Purakayastha T J, Smith J L, Huggins D R, 2009. Microbial biomass and N cycling under native prairie, conservation reserve and no-tillage in Palouse soils. Geoderma, 152: 283-289.
Shrestha G, Stahl P D, 2008. Carbon accumulation and storage in semi-arid sagebrush steppe: Effects of long-term grazing exclusion. Agriculture, Ecosystems and Environment, 125: 173-181.
Sparling G P, 1992. Ratio of microbial biomass carbon to soil organic carbon as a sensitive indicator of changes in soil organic matter. Australian Journal of Soil Research, 30: 195-207.
Su H, Liu G X, He T, 2005. Reclamation of grassland and its harm. Grassland of China, 27(6):61-63. (in Chinese)
Su Y Z, Zhao H L, Wen H Y, 2002. Cultivation and enclosure effects on soil physicochemical properties of degraded sandy grassland. Journal of Soil and Water Conservation, 16(4): 5-8, 126. (in Chinese)
Su Y Z, Zhao H L, Zhang T H et al., 2004. Soil properties following cultivation and non-grazing of a semi-arid sandy grassland in northern China. Soil and Tillage Research, 75: 27-36.
Tans P P, Wallace D W R, 1999. Carbon cycle research after Kyoto. Tellus, 51B: 562-571. Tian H, Melillo J M, Kicklighter D W et a1., 1998. Effect of interannual climate variability on carbon storage in Amazonian ecosystems. Nature, 396: 664-667.
Tiessen H, Moir J O, 1993. Total and organic carbon. In: Carter M R (ed), Soil Sampling and Methods of Analysis. Boca Raton, FL: Lewis Publishers, 187-199.
Wang S P, Wilkes A, Zhang Z C et al., 2011a. Management and land use change effects on soil carbon in northern China’s grasslands: A synthesis. Agriculture, Ecosystems and Environment, 142: 329-340.
Wang S Q, Liu J Y, Zhang C et al., 2011b. Effects of afforestation on soil carbon turnover in China’s subtropical region. Journal of Geographical Sciences, 21(1): 118-134.
Wang Y, Amundson R, Trumbore S, 1999. The impact of land use change on C turnover in soils. Global Biogeochemical Cycles, 13: 47-57.
Wang Y F, Chen Z Z, Tieszen L T, 1998. Distribution of soil organic carbon in the major grasslands of Xilinguole, Inner Mongolia, China. Acta Phytoecologica Sinica, 22(6): 545-551.
Watson R T, Noble I R, Bolin B et al., 2000. Land Use, Land-use Change and Forestry: A Special Report of the IPCC. Cambridge, UK: Cambridge University Press, 189-217.
WBGU, 1998. The accounting of biological sinks and sources under the Kyoto Protocol: A step forwards or backwards for global environmental protection? Bremerhaven: German Advisory Council on Global Change, 24.
Wick B, Kühne R F, Vlek P L G, 1998. Soil microbiological parameters as indicators of soil quality under improved fallow management systems in south-western Nigeria. Plant and Soil, 202: 97-107.
Wu R, Tiessen H, 2002. Effect of land use on soil degradation in alpine grassland soil, China. Soil Science Society of American Journal, 66: 1648-1655.
Xi M, Lu X G, Li Y et al., 2007. Distribution characteristics of dissolved organic carbon in annular wetland soil-water solutions through soil profiles in the Sanjiang Plain, Northeast China. Journal of Environmental Sciences, 19: 1074-1078.
Yang Y S, Xie J S, Sheng H et al., 2009. The impact of land use/cover change on storage and quality of soil organic carbon in mid-subtropical mountainous area of southern China. Journal of Geographical Sciences, 19: 49-57.
Yin P, 2008. Effects of tillage period on soil organic carbon pool and aggregate stability of sub-alpine meadow
[D]. Lanzhou: Lanzhou University, 16. (in Chinese)
Zhang J B, Song C C, Yang W Y, 2005. Influence of land-use type on soil dissolved organic carbon in Sanjiang Plain. China Environmental Science, 25(3): 343-347. (in Chinese)
Zhang J B, Song C C, Yang W Y, 2007. Tillage effects on soil carbon fractions in the Sanjiang Plain, Northeast China. Soil and Tillage Research, 93: 102-108.
Zhang X S, Zhou G S, Gao Q et al., 1997. Northeast China Transect (NECT) for global change studies. Earth Science Frontiers, 4: 145-151. (in Chinese)
Zhou G S, Wang Y H, Jiang Y L et al., 2002. Conversion of terrestrial ecosystems and carbon cycling. Acta Phytoecologica Sinica, 26(2): 250-254. (in Chinese)
Zhu Z J, Jiang P K, Xu Q F, 2006. Study on the active organic carbon in soil under different types of vegetation. Forest Research, 19(4): 523-526. (in Chinese)