Acta Prataculturae Sinica ›› 2022, Vol. 31 ›› Issue (6): 50-60.DOI: 10.11686/cyxb2021161
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Yang LI1,2(), Yi WANG2,3, Guo-dong HAN1(), Jian SUN2(), Ya-feng WANG2
Received:
2021-04-27
Revised:
2021-06-16
Online:
2022-06-20
Published:
2022-05-11
Contact:
Guo-dong HAN,Jian SUN
Yang LI, Yi WANG, Guo-dong HAN, Jian SUN, Ya-feng WANG. Soil microbial biomass carbon and nitrogen levels and their controlling factors in alpine grassland, Qinghai-Tibet Plateau[J]. Acta Prataculturae Sinica, 2022, 31(6): 50-60.
Fig.2 Correlation among microbial biomass carbon and nitrogen, climate, community diversity and soil physicochemical properties in the alpine meadow (a) and the alpine steppe (b)
草地类型Types | 微生物量Microbial index | 气候Climate factors | 斜率Slope | 截距Intercept | R2 | P |
---|---|---|---|---|---|---|
高寒草甸Alpine meadow | MBC | GSP | 1.55 | -3.08 | 0.49 | <0.01 |
GST | -0.91 | 8.02 | 0.03 | 0.24 | ||
MBN | GSP | 1.36 | -3.16 | 0.50 | <0.01 | |
GST | -0.44 | 5.82 | 0.01 | 0.51 | ||
高寒草原Alpine steppe | MBC | GSP | 1.87 | -4.91 | 0.44 | <0.01 |
GST | -1.60 | 8.51 | 0.06 | 0.05 | ||
MBN | GSP | 1.42 | -3.47 | 0.35 | <0.01 | |
GST | -2.05 | 8.56 | 0.14 | <0.01 |
Table 1 Regression and correlation analysis between microbial biomass carbon and nitrogen and climate factors in different grassland types
草地类型Types | 微生物量Microbial index | 气候Climate factors | 斜率Slope | 截距Intercept | R2 | P |
---|---|---|---|---|---|---|
高寒草甸Alpine meadow | MBC | GSP | 1.55 | -3.08 | 0.49 | <0.01 |
GST | -0.91 | 8.02 | 0.03 | 0.24 | ||
MBN | GSP | 1.36 | -3.16 | 0.50 | <0.01 | |
GST | -0.44 | 5.82 | 0.01 | 0.51 | ||
高寒草原Alpine steppe | MBC | GSP | 1.87 | -4.91 | 0.44 | <0.01 |
GST | -1.60 | 8.51 | 0.06 | 0.05 | ||
MBN | GSP | 1.42 | -3.47 | 0.35 | <0.01 | |
GST | -2.05 | 8.56 | 0.14 | <0.01 |
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