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Article

A Landscape Connectivity Approach for Determining Minimum Ecological Lake Level: Implications for Lake Restoration

by 1,2, 1,2,*, 1,2, 1,2, 1,3 and 1,2,3
1
State Key Laboratory of Water Environment Simulation, Beijing Normal University, Beijing 100875, China
2
Key Laboratory for Water and Sediment Sciences of Ministry of Education, Beijing Normal University, Beijing 100875, China
3
Beijing Engineering Research Center for Watershed Environmental Restoration and Integrated Ecological Regulation, Beijing Normal University, Beijing 100875, China
*
Author to whom correspondence should be addressed.
Water 2019, 11(11), 2237; https://doi.org/10.3390/w11112237
Received: 24 September 2019 / Revised: 18 October 2019 / Accepted: 21 October 2019 / Published: 26 October 2019
We proposed a new approach to determine the minimum ecological lake level using a landscape connectivity approach. Using MIKE 21 and ArcGIS software, we simulated the water landscape and corresponding connectivity of Baiyangdian Lake on the North China Plain and analyzed the relationship between landscape connectivity and lake level. The minimum ecological lake level was defined as the breakpoint of the lake level-connectivity curve. Results suggested that the minimum ecological lake level of Baiyangdian Lake is 7.8–8.0 m, below which lake ecosystems become fragmented and potentially fragile. Alternatively, better connectivity at lower lake levels may be achieved by engineered modification of landscape patterns. Such approaches can mitigate the waste of water and economic resources due to excessive reliance on increasing water levels to meet minimum connectivity requirements. This approach provided a new perspective for lake ecosystem restoration of use in water-resource- and landscape management. View Full-Text
Keywords: minimum ecological lake level; landscape; connectivity; simulation; lake restoration minimum ecological lake level; landscape; connectivity; simulation; lake restoration
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MDPI and ACS Style

Liu, D.; Wang, X.; Zhang, Y.-l.; Yan, S.-j.; Cui, B.-s.; Yang, Z.-f. A Landscape Connectivity Approach for Determining Minimum Ecological Lake Level: Implications for Lake Restoration. Water 2019, 11, 2237. https://doi.org/10.3390/w11112237

AMA Style

Liu D, Wang X, Zhang Y-l, Yan S-j, Cui B-s, Yang Z-f. A Landscape Connectivity Approach for Determining Minimum Ecological Lake Level: Implications for Lake Restoration. Water. 2019; 11(11):2237. https://doi.org/10.3390/w11112237

Chicago/Turabian Style

Liu, Dan; Wang, Xuan; Zhang, Yun-long; Yan, Sheng-jun; Cui, Bao-shan; Yang, Zhi-feng. 2019. "A Landscape Connectivity Approach for Determining Minimum Ecological Lake Level: Implications for Lake Restoration" Water 11, no. 11: 2237. https://doi.org/10.3390/w11112237

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