Analysis of the change of carbon storage in alpine arid grassland

Abstract

Abstract: The different change of organic carbon contents of the 0-10, 10-20, 20-30, 30-40 cm soil layers were studied on based on seven different alpine meadow -use types, which were serious degraded (SD), heavy degraded (HD), moderate degraded (MD), light degraded (LD), non-degraded (ND), fenced-ungrazed (FUG) and artificial-pasture (AP), in the northeastern of Qinghai Lake Region. The storage of soil organic carbon per unit area varied in the order of LD>ND>MD>HD>AP>FUG>SD in the May to July, in the order of ND>LD>MD>HD>FUG>AP>SD in the August to October, the soil organic carbon in the fenced-ungrazed and artificial-pasture was significantly (P<0.05) lower than that in lightly degraded and non-degraded, no significant difference was found between in the fenced-ungrazed and artificial-pasturer (P>0.05). From 0-10 to 30-40 cm soil layers, the storage of soil organic carbon per unit area varied in the order of 0-10>10-20>20-30>30-40 cm and was significantly (P<0.05). In different months, the carbon storage decreased dramatically from May to June and increased from July to October.

CLC Number:

S812.29

ZHANG Fan, QI Biao, WEN Fei, ZHANG De-gang, WU Hong, ZHANG Li. Analysis of the change of carbon storage in alpine arid grassland[J]. Acta Prataculturae Sinica, 2011, 20(4): 11-18.

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