Suggestions for Optimizing the Ecological Security Pattern in Chaohu Basin Based on Landscape Types and Ecological Risk Assessment

LI Yue; PENG Bo; LIN Shao-Kai; LI Yang; ZHOU Ying; ZENG Jian-Wei

doi:10.3969/j.issn.2097-0013.2024.03.010

2024 Vol. 40, No. 3

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Article navigation > South China Geology > 2024 > 40(3): 548-558

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LI Yue, PENG Bo, LIN Shao-Kai, LI Yang, ZHOU Ying, ZENG Jian-Wei. 2024. Suggestions for Optimizing the Ecological Security Pattern in Chaohu Basin Based on Landscape Types and Ecological Risk Assessment. South China Geology, 40(3): 548-558. doi: 10.3969/j.issn.2097-0013.2024.03.010

Citation:

LI Yue, PENG Bo, LIN Shao-Kai, LI Yang, ZHOU Ying, ZENG Jian-Wei. 2024. Suggestions for Optimizing the Ecological Security Pattern in Chaohu Basin Based on Landscape Types and Ecological Risk Assessment. South China Geology, 40(3): 548-558. doi: 10.3969/j.issn.2097-0013.2024.03.010

Suggestions for Optimizing the Ecological Security Pattern in Chaohu Basin Based on Landscape Types and Ecological Risk Assessment

1.
Geological Survey of Jiangsu, Nanjing 210018, Jiangsu, China
2.
Nanjing Center, China Geological Survey, Nanjing 210016, Jiangsu, China
3.
School of Civil Engineering, Fujian University of Technology, Fuzhou 350118, Fujian, China

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Corresponding author: ZENG Jian-Wei, zjwcug@163.com

Received Date: 15 January 2024

Revised Date: 06 February 2024

Publish Date: 25 September 2024

Abstract

Abstract

Constructing ecological security pattern scientifically and reasonably is an important guarantee for regional sustainable development. In order to optimize the ecological security pattern zoning of the Chaohu Basin, based on remote sensing data of landscape types in the basin from three periods in 2010, 2016, and 2022, this paper investigates the spatiotemporal changes in landscape ecological risk of the basin in recent years by using a landscape risk assessment model, furthermore, puts forward some optimization suggestions for the ecological security pattern zoning of the basin by combining the characteristics of natural background. The results show that from 2010 to 2022, the number of low-risk small basin in Chaohu Basin decreased, the number of lower-risk small basin began to increase in the later period, the number of medium-risk small basin increased, moreover the number of higher-risk and high-risk small basin showed a decreasing trend. Upon the comparison, this paper reveals that there is significant variation in landscape ecological risk within and between major basins in the region, however, within the same basin, there is no leapfrog change in the variation levels, but transitions between adjacent levels. Therefore, the characteristics of landscape ecological risk that changes over time within the same major basin exhibit minimal differences. Based on the natural background and the spatiotemporal variation characteristics of landscape risk in Chaohu Basin, this paper proposes the optimization suggestions of " two zones, three corridors, four patches and two belts " for the ecological security pattern zoning of the basin.
- Chaohu Basin /
- landscape type /
- landscape risk assessment /
- ecological security pattern zoning

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References

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