Estimation of Soil Organic Carbon Storage in Palustrine Wetlands, China
Abstract
:1. Introduction
2. Database and Methods
2.1. Data Collection
2.2. Methodology
2.3. Statistical Analysis
3. Results and Analysis
3.1. Simulated SOC Storage
3.2. Environmental Controls on SOC Content
4. Discussion
4.1. Spatial Distribution and Characteristics of SOC on a National-Scale
4.2. Environmental Factors Controlling SOC Content
5. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Geographical Region | Palustrine Wetlands Area × 104 km2 | Altitude m | MAP mm | MAT °C | Climatic Characteristic |
---|---|---|---|---|---|
C1 | 7.5204 | 327.1 | 550 | 1.4 | Temperate monsoon climate |
C2 | 0.0329 | 1847.2 | 898 | 18 | Subtropical monsoon climate Tropical monsoon climate |
C3 | 0.1595 | 25.5 | 1320 | 16.6 | Subtropical monsoon climate |
C4 | 0.0046 | 43.6 | 2283 | 21.3 | Subtropical monsoon climate |
C5 | 0.1710 | 7.2 | 879 | 14.1 | Temperate monsoon climate Subtropical monsoon climate Tropical monsoon climate |
C6 | 9.9865 | 3539.1 | 655 | 3.3 | Plateau mountain climate |
C7 | 0.2493 | 11.7 | 510 | 13.5 | Temperate monsoon climate |
C8 | 3.6089 | 2730 | 87 | 4.5 | Temperate continental climate |
Item | AX 1 | AX 2 |
---|---|---|
Eigenvalues | 0.579 | 0.421 |
Species-environment correlation | 0.761 | 0.000 |
Cumulative % variance of species | 57.90 | 100.00 |
Cumulative % variance of species-environment | 100.00 | 0.00 |
Sum of all canonical eigenvalues | 0.579 |
Response Variable | Variable | R2 | Direct Path Coefficient | Indirect Path Coefficient | Total Path Coefficient | Residual Path Coefficient | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MAP | MAT | Latitude | Longitude | Altitude | Mc | pH | ||||||
SOC | MAP | 0.999 | 0.823 | -- | 0.682 | −0.618 | −0.082 | −0.027 | −0.003 | −0.000 | −0.047 | 0.001 |
MAT | 0.823 | 0.682 | -- | −0.686 | −0.118 | 0.039 | −0.011 | −0.002 | −0.095 | |||
Latitude | 0.856 | −0.594 | −0.659 | -- | 0.275 | 0.231 | 0.009 | 0.002 | −0.736 | |||
Longitude | 0.375 | −0.179 | −0.259 | 0.627 | -- | 0.253 | 0.005 | 0.002 | 0.449 | |||
Altitude | −0.286 | 0.077 | −0.111 | −0.692 | −0.332 | -- | −0.013 | −0.001 | −1.072 | |||
MC | 0.025 | −0.088 | −0.354 | 0.322 | 0.078 | 0.144 | -- | 0.001 | 0.104 | |||
pH | −0.003 | 0.065 | 0.427 | −0.573 | −0.263 | −0.140 | −0.012 | -- | −0.496 |
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Han, L.; Wan, Z.; Guo, Y.; Song, C.; Jin, S.; Zuo, Y. Estimation of Soil Organic Carbon Storage in Palustrine Wetlands, China. Int. J. Environ. Res. Public Health 2020, 17, 4646. https://doi.org/10.3390/ijerph17134646
Han L, Wan Z, Guo Y, Song C, Jin S, Zuo Y. Estimation of Soil Organic Carbon Storage in Palustrine Wetlands, China. International Journal of Environmental Research and Public Health. 2020; 17(13):4646. https://doi.org/10.3390/ijerph17134646
Chicago/Turabian StyleHan, Lu, Zhongmei Wan, Yuedong Guo, Changchun Song, Shaofei Jin, and Yunjiang Zuo. 2020. "Estimation of Soil Organic Carbon Storage in Palustrine Wetlands, China" International Journal of Environmental Research and Public Health 17, no. 13: 4646. https://doi.org/10.3390/ijerph17134646