Estimation of Ecological Connectivity in a City Based on Land Cover and Urban Habitat Maps
Abstract
:1. Introduction
2. Materials and Methods
2.1. Study Area and Datasets
2.2. Connectivity Analysis
2.3. Generating Permeability Maps
3. Results
3.1. Current-Flow Betweenness Centrality Results Derived from Land Cover and Urban Habitat Maps
3.2. Differences between the Current-Flow Betweenness Centrality Maps
4. Discussion
4.1. Land Cover Map and Urban Habitat Map for the Connectivity Analysis
4.2. Contribution to Connectivity
4.3. Conservation-Priority Areas
5. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
Appendix A
Appendix B
References
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Study Site | Weight Value | ||
---|---|---|---|
Area (ha) | Area (%) | ||
Land Cover Type | |||
Built-up | 5218.15 | 43.10% | 1 |
Forest | 2506.51 | 20.70% | 100 |
Agriculture | 1717.87 | 14.19% | 10 |
Bare land | 1263.57 | 10.44% | 20 |
Grassland | 1098.29 | 9.07% | 30 |
Water | 233.70 | 1.93% | 20 |
Wetland | 68.24 | 0.56% | 100 |
Total | 12,106.32 | 100.00% | |
Urban Habitat Type | |||
Natural area | 2096.19 | 17.27% | 100 |
Semi-natural area | 1181.36 | 9.73% | 80 |
Semi-artificial area | 1932.90 | 15.93% | 60 |
Low-density artificial area | 1888.52 | 15.56% | 40 |
High-density grey area | 5036.76 | 41.50% | 20 |
Total | 12,135.73 | 100.00% |
Level 2 | Definition | |
---|---|---|
Natural area | Forest | Biotope type that absolutely needs conservation for the entire site |
Semi-natural area | River Lake and wetland Grassland (natural grass area) | Biotope type that prioritizes conservation for the entire site |
Semi-artificial area | Cropland | Biotope type that requires conservation priority in some target areas and the remaining areas need to be divided from area that land use restriction is conducted |
Low-density artificial area | Processing facility Manufacturing area Special purpose area Grassland (artificial grass area) Landscape (green) area Bare/ruined area | Biotope type that requires land use restrictions on some of the target land |
High-density grey area | Residential area Mixed residential area Commercial area Public area Transportation facility | Biotope type requiring partial improvement |
Category | Current-Flow betweenness Centrality (mean ± SD) |
---|---|
Land Cover | |
Forest | 0.0100 ± 0.0028 |
Wetland | 0.0074 ± 0.0027 |
Grassland | 0.0060 ± 0.0031 |
Bare land | 0.0057 ± 0.0023 |
Water | 0.0056 ± 0.0020 |
Agriculture | 0.0051 ± 0.0022 |
Built-up | 0.0026 ± 0.0020 |
Mean | 0.0052 ± 0.0037 |
Urban Habitat | |
Natural area | 0.0082 ± 0.0016 |
Semi-natural area | 0.0071 ± 0.0022 |
Semi-artificial area | 0.0062 ± 0.0019 |
Low-density Artificial area | 0.0048±0.0017 |
High-density grey area | 0.0026 ± 0.0022 |
Mean | 0.0049 ± 0.0030 |
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Kim, D.; Shin, W.; Choi, H.; Kim, J.; Song, Y. Estimation of Ecological Connectivity in a City Based on Land Cover and Urban Habitat Maps. Sustainability 2020, 12, 9529. https://doi.org/10.3390/su12229529
Kim D, Shin W, Choi H, Kim J, Song Y. Estimation of Ecological Connectivity in a City Based on Land Cover and Urban Habitat Maps. Sustainability. 2020; 12(22):9529. https://doi.org/10.3390/su12229529
Chicago/Turabian StyleKim, Dohee, Wonhyeop Shin, Heejoon Choi, Jihwan Kim, and Youngkeun Song. 2020. "Estimation of Ecological Connectivity in a City Based on Land Cover and Urban Habitat Maps" Sustainability 12, no. 22: 9529. https://doi.org/10.3390/su12229529