Changes of Soil Microbiological Properties during Grass Litter Decomposition in Loess Hilly Region, China
Abstract
:1. Introduction
2. Materials and Methods
2.1. Study Site
2.2. Experimental Design
2.3. The Determination of Soil Microbial Biomass and Enzyme Activity
2.4. Data Analysis
3. Results
3.1. Change Characteristics of Soil Microbial Biomass
3.2. Change Characteristics of Soil Enzyme Activities
3.3. The Change Rate of Soil Microbial Biomass and Enzyme Activity
3.4. The Pearson Correlation between the Environmental Factor, Substance and Soil Biological Properties
4. Discussion
4.1. Effects of Leaf Litter Decomposition on Soil Microbial Biomass
4.2. Effects of Litter Decomposition on Soil Enzyme Activities
4.3. Factors Influencing Soil Microbiological Properties
5. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Leaf Litter Types | Total C/g·kg−1 | Total N/g·kg−1 | Lignin/% | Cellulose/% | Lignin/N | C/N |
---|---|---|---|---|---|---|
St.B | 479.55 ± 1.64a | 10.58 ± 1.09b | 26.84 ± 0.79b | 16.00 ± 0.07b | 2.5 | 43.1 |
Ar.S | 481.05 ± 9.39a | 17.69 ± 1.15a | 30.34 ± 0.34a | 8.15 ± 0.12c | 1.7 | 28.2 |
Th.Q | 476.34 ± 22.71a | 10.42 ± 1.12b | 39.39 ± 0.99a | 21.83 ± 0.14a | 3.8 | 48.2 |
Litter Type | ΔSMBC (%) | △SMBN (%) | ΔSoil Invertase (%) | ΔSoil Urease (%) | ΔNitrate Reductase (%) |
---|---|---|---|---|---|
St.B | 463.7 ± 10.3b | 453.7 ± 12.5b | 21.6 ± 15.2b | 463.6 ± 21.3b | 1066.1 ± 35.2a |
Ar.S | 659.2 ± 20.5a | 650.2 ± 20.1a | 16.7 ± 8.7b | 459.1 ± 19.6b | 1166.3 ± 39.6a |
Th.Q | 361.8 ± 15.6c | 351.8 ± 10.2c | 33.2 ± 8.9a | 558.3 ± 20.1a | 832.7 ± 34.5b |
Control | 167.3 ± 10.0d | 169.5 ± 10.1d | −16.4 ± 8.9c | 310.3 ± 19.8c | 658.3 ± 21.6c |
Pearson Correlation Coefficients | The Initial Chemical Properties of Litter | |||||
---|---|---|---|---|---|---|
TC | TN | Lignin | Cellulose | Lignin/N | C/N | |
ΔMBC (%) | 0.924 | 0.949 | −0.561 | −0.995 | −0.950 | −0.964 |
ΔMBN (%) | 0.923 | 0.965 | −0.560 | −0.995 | −0.961 | −0.948 |
ΔSoil invertase (%) | −0.999 ** | −0.745 | 0.844 | 0.951 | 0.996 ** | 0.742 |
ΔSoil urease (%) | −0.964 | −0.555 | 0.952 | 0.843 | 0.940 | 0.550 |
ΔNitrate reductase (%) | 0.999 ** | 0.748 | −0.842 | −0.952 | −0.997 ** | −0.744 |
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Xiang, Y.; An, S.; Cheng, M.; Liu, L.; Xie, Y. Changes of Soil Microbiological Properties during Grass Litter Decomposition in Loess Hilly Region, China. Int. J. Environ. Res. Public Health 2018, 15, 1797. https://doi.org/10.3390/ijerph15091797
Xiang Y, An S, Cheng M, Liu L, Xie Y. Changes of Soil Microbiological Properties during Grass Litter Decomposition in Loess Hilly Region, China. International Journal of Environmental Research and Public Health. 2018; 15(9):1797. https://doi.org/10.3390/ijerph15091797
Chicago/Turabian StyleXiang, Yun, Shaoshan An, Man Cheng, Lijun Liu, and Ying Xie. 2018. "Changes of Soil Microbiological Properties during Grass Litter Decomposition in Loess Hilly Region, China" International Journal of Environmental Research and Public Health 15, no. 9: 1797. https://doi.org/10.3390/ijerph15091797