Spatiotemporal Variance Assessment of Urban Rainstorm Waterlogging Affected by Impervious Surface Expansion: A Case Study of Guangzhou, China
Abstract
:1. Introduction
2. Study Area
3. Data and Methods
3.1. Data
3.2. Spatiotemporal Variance Analysis Method
4. Result
4.1. Spatiotemporal Evolution and Autocorrelation Analysis of Urban Rainstorm Waterlogging
4.2. Expansion of Impervious Surface
4.3. GWR Analysis of the Relationship between Urban Rainstorm Waterlogging and the Expansion of Impervious Surface
5. Conclusions and Discussion
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Data | Format | Time | Source |
---|---|---|---|
1:4 Million administrative divisions | Esri shape file | 2005 | National Geomatics Center of China |
Landsat remote-sensing image | Img | 1990-11-03 1999-11-15 2010-10-28 | USGS |
High-resolution remote sensing image | Jpeg | 2000 2008 2010 | Google Earth aerial photo |
Waterlogging information | Text | 1980–2012 | Guangzhou Water Authority, Guangzhou Daily |
Topographic data | Img | 2009 | LP DAAC |
Research Period (Year) | Index | Moran’s I | Z | P |
---|---|---|---|---|
1980–1989 | Average Waterlogging Density | 0.15 | 17.86 | 0.00 |
1990–1999 | 0.36 | 35.25 | 0.00 | |
2000–2012 | 0.60 | 55.16 | 0.00 | |
1980–1989 | Impervious Surface Density | 0.73 | 66.32 | 0.00 |
1990–1999 | 0.72 | 65.24 | 0.00 | |
2000–2012 | 0.63 | 57.75 | 0.00 |
Land Use | 1999 | |||||
---|---|---|---|---|---|---|
Green Land | Farmland | Water | Bare Land | ISA | ||
1990 | Green land | 414.3 | 63.37 | 2.536 | 35.51 | 27.68 |
Farmland | 54.9 | 62.53 | 1.106 | 30.19 | 45.03 | |
Water | 4.3794 | 1.5345 | 30.8385 | 1.9836 | 11.1069 | |
Bare land | 59.4018 | 43.4781 | 2.8314 | 88.6734 | 67.2084 | |
ISA | 26.1522 | 42.0021 | 8.0541 | 34.4637 | 292.7142 | |
2010 | Green land | 336.6144 | 35.3133 | 2.2788 | 23.9994 | 17.3367 |
Farmland | 106.1271 | 71.2143 | 2.7099 | 70.3044 | 46.4535 | |
Water | 2.9826 | 1.6452 | 28.7883 | 2.5965 | 9.6786 | |
Bare land | 32.9535 | 17.514 | 0.54 | 11.1564 | 13.8942 | |
ISA | 80.5698 | 89.7192 | 11.1906 | 82.6209 | 360.3267 |
Research Period | Spatial Autocorrelation of Standard Residual | R2 | Adjusted R2 | ||
---|---|---|---|---|---|
1990–1999 | Moran’s I = −0.008 | Z = −0.605 | P = 0.545 | 0.871 | 0.733 |
2000–2012 | Moran’s I = −0.179 | Z = −1.498 | P = 0.134 | 0.864 | 0.774 |
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Yu, H.; Zhao, Y.; Fu, Y.; Li, L. Spatiotemporal Variance Assessment of Urban Rainstorm Waterlogging Affected by Impervious Surface Expansion: A Case Study of Guangzhou, China. Sustainability 2018, 10, 3761. https://doi.org/10.3390/su10103761
Yu H, Zhao Y, Fu Y, Li L. Spatiotemporal Variance Assessment of Urban Rainstorm Waterlogging Affected by Impervious Surface Expansion: A Case Study of Guangzhou, China. Sustainability. 2018; 10(10):3761. https://doi.org/10.3390/su10103761
Chicago/Turabian StyleYu, Huafei, Yaolong Zhao, Yingchun Fu, and Le Li. 2018. "Spatiotemporal Variance Assessment of Urban Rainstorm Waterlogging Affected by Impervious Surface Expansion: A Case Study of Guangzhou, China" Sustainability 10, no. 10: 3761. https://doi.org/10.3390/su10103761