Spatio-Temporal Patterns and Policy Implications of Urban Land Expansion in Metropolitan Areas: A Case Study of Wuhan Urban Agglomeration, Central China
Abstract
:1. Introduction
2. Materials and Methods
2.1. Study Area
2.2. Data Sources and Processing
2.2.1. Definition of Urban Area
2.2.2. Satellite Image Processing
2.2.3. Accuracy Analysis
Region | Urban Land Area (km2) | Urban Land Change (km2) | |||||
---|---|---|---|---|---|---|---|
1980 | 1990 | 2000 | 2010 | 1980–1990 | 1990–2000 | 2000–2010 | |
Wuhan | 88.28 | 272.58 | 336.89 | 715.40 | 184.3 | 64.31 | 378.51 |
Huangshi | 33.43 | 56.54 | 66.22 | 96.98 | 23.11 | 9.68 | 30.76 |
Ezhou | 7.43 | 17.47 | 27.75 | 44.97 | 10.04 | 10.28 | 17.22 |
Xiaogan | 21.36 | 76.84 | 104.92 | 125.70 | 55.48 | 28.08 | 20.78 |
Huanggang | 17.44 | 78.72 | 108.08 | 147.54 | 61.28 | 29.36 | 39.46 |
Xianning | 15.89 | 48.35 | 59.26 | 104.28 | 32.46 | 10.91 | 45.02 |
Xiantao | 9.69 | 30.95 | 35.66 | 60.83 | 21.26 | 4.71 | 25.17 |
Qianjiang | 6.95 | 22.57 | 27.64 | 38.24 | 15.62 | 5.07 | 10.6 |
Tianmen | 3.21 | 23.47 | 28.49 | 35.91 | 20.26 | 5.02 | 7.42 |
WUA | 203.66 | 627.48 | 794.90 | 1369.83 | 423.82 | 167.42 | 574.93 |
2.2.4. Socio-Economic Data Acquisition
2.3. Methods
2.3.1. Urban Expansion Intensity Index (UEII)
2.3.2. Urban Expansion Differentiation Index (UEDI)
2.3.3. Fractal Dimension
3. Results Analysis
3.1. The Temporal Evolution Characteristics of Urban Land Expansion
Region | Urban Expansion Intensity Index(UEII) | Urban Expansion Differentiation Index(UEDI) | ||||||
---|---|---|---|---|---|---|---|---|
1980–1990 | 1990–2000 | 2000–2010 | 1980–2010 | 1980–1990 | 1990–2000 | 2000–2010 | 1980–2010 | |
Wuhan | 0.2167 | 0.0756 | 0.4450 | 0.7372 | 1.0032 | 0.8842 | 1.5534 | 1.2406 |
Huangshi | 0.0508 | 0.0213 | 0.0676 | 0.1397 | 0.3323 | 0.6414 | 0.6423 | 0.3320 |
Ezhou | 0.0616 | 0.0630 | 0.1056 | 0.2302 | 0.6495 | 2.2055 | 0.8582 | 0.8827 |
Xiaogan | 0.0625 | 0.0316 | 0.0234 | 0.1175 | 1.2484 | 1.3695 | 0.2738 | 0.8532 |
Huanggang | 0.0352 | 0.0169 | 0.0226 | 0.0747 | 1.6883 | 1.3983 | 0.5047 | 1.3027 |
Xianning | 0.0333 | 0.0112 | 0.0462 | 0.0908 | 0.9814 | 0.8462 | 1.0502 | 0.9713 |
Xiantao | 0.0842 | 0.0186 | 0.0996 | 0.2024 | 1.0545 | 0.5695 | 0.9761 | 0.9217 |
Qianjiang | 0.0772 | 0.0250 | 0.0524 | 0.1546 | 1.0809 | 0.8421 | 0.5304 | 0.7869 |
Tianmen | 0.0768 | 0.0190 | 0.0281 | 0.1239 | 3.0371 | 0.8018 | 0.3598 | 1.7812 |
WUA region | 0.0732 | 0.0289 | 0.0993 | 0.2014 | 1.0000 | 1.0000 | 1.0000 | 1.0000 |
Coefficient of standard deviation | 0.7538 | 0.7767 | 1.3430 | 0.7538 | 1.0032 | 0.8842 | 1.5534 | 1.2406 |
3.2. The Spatial Evolution Characteristics of Urban Land Expansion
3.3. The Spatio-Temporal Evolution of Urban Morphology
4. Factors Influencing Urban Land Expansion
4.1. Industrialisation
Indicators | 1980 | 1990 | 2000 | 2010 |
---|---|---|---|---|
Gross domestic product (GDP)/108 RMB | 114.08 | 386.64 | 2499.13 | 9635.76 |
GDP per capita/RMB | 478 | 1429 | 8142 | 31861 |
Total population/104 persons | 2384.81 | 2704.91 | 3069.60 | 3024.29 |
Urbanisation rate/% | 20.91 | 26.15 | 46.09 | 53.10 |
Total industrial output value/108 RMB | - | 619.78 | 1844.05 | 13146.42 |
Total fixed asset investment/108 RMB | - | 75.31 | 806.81 | 6762.67 |
4.2. Urban Population Growth
4.3. Land-Use Policies
4.4. Urbanisation Guidelines
4.5. National Development Strategy
5. Discussion
6. Conclusions
Acknowledgments
Author Contributions
Conflicts of Interest
References
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Lu, S.; Guan, X.; He, C.; Zhang, J. Spatio-Temporal Patterns and Policy Implications of Urban Land Expansion in Metropolitan Areas: A Case Study of Wuhan Urban Agglomeration, Central China. Sustainability 2014, 6, 4723-4748. https://doi.org/10.3390/su6084723
Lu S, Guan X, He C, Zhang J. Spatio-Temporal Patterns and Policy Implications of Urban Land Expansion in Metropolitan Areas: A Case Study of Wuhan Urban Agglomeration, Central China. Sustainability. 2014; 6(8):4723-4748. https://doi.org/10.3390/su6084723
Chicago/Turabian StyleLu, Shasha, Xingliang Guan, Chao He, and Jiali Zhang. 2014. "Spatio-Temporal Patterns and Policy Implications of Urban Land Expansion in Metropolitan Areas: A Case Study of Wuhan Urban Agglomeration, Central China" Sustainability 6, no. 8: 4723-4748. https://doi.org/10.3390/su6084723