Open Journal Systems

The return of river life—Urban river ecosystem restoration based on biodiversity enhancement

Xingzhong Yuan, Enrui Jia, Yangjing Liu, Song Chen

Article ID: 1857
Vol 3, Issue 1, 2022

DOI: https://doi.org/10.54517/ec.v3i1.1857
VIEWS - 105 (Abstract)

Abstract

Biodiversity is the immune system of river ecological health. Restoration and improvement of urban river biodiversity and return of life to river are the main goals and important tasks of river ecosystem restoration. Taking Wuyuan River located in Xiuying District, Haikou city as the research object, based on the ecological environment and biodiversity background before river restoration, the design technology and practice of Wuyuan River ecosystem restoration were discussed, and four strategies of ecological restoration were put forward: 1) River ecological restoration—Three-dimensional ecological space reconstruction. 2) Riparian ecological restoration—Flexible ecological riparian design. 3) River-wetland synergy—River-wetland complex construction. 4) Multi-functional habitat restoration—Life landscape river reconstruction. Based on the goal of biodiversity improvement, the innovative path and mode of urban river ecosystem restoration were explored from the perspective of life landscape river restoration. Finally, the biodiversity of Wuyuan River after restoration was evaluated. The results showed that the habitat types of Wuyuan River after restoration were diverse, the habitat quality was good, and the improvement effect of biodiversity was obvious. The practice of ecological restoration shows that urban river ecological restoration aimed at the improvement of biodiversity is more conducive to the overall protection of urban river ecosystem and the optimization and improvement of river landscape quality.

Keywords

landscape architecture; urban rivers; river ecosystem restoration; river habitat; biodiversity; Wuyuan River; Haikou city

Full Text:

PDF

References

1. Ni J, Liu Y. Ecological rehabilitation of damaged river system. Journal of Hydraulic Engineering 2006; 37(9): 1029–1037, 1043.

2. Bernhardt ES, Palmer MA. Restoring streams in an urbanizing world. Freshwater Biology 2007; 52: 738–751.

3. Dong Z, Sun D, Zhao J. Progress and prospect of eco-hydraulic engineering. Journal of Hydraulic Engineering 2014; 45(14): 1419–1426.

4. Xie Y, Lin Y. The re-naturalized restoration of urban river landscape—A case study of Isar-plan, Munich, Germany. Chinese Landscape Architecture 2015; 31(1): 55–59.

5. The Japan Foundation River Improvement Center. Construction method and key points of multi-natural type river construction. Zhou H, Du X, Li Y, et al. (translators). Beijing: China Water&Power Press; 2003.

6. Huang J, Zhang J. River eco-restoration with nature acting—Huhhot black river eco-landscape conceptual planning. Landscape Architecture 2018; 25(10): 86–91.

7. Van Der Velde G, Leuven RSEW, Ragas AMJ, et al. Living rivers: Trends and challenges in science and management. Hydrobiologia 2006; 565(1): 359–367.

8. Palmer M, Ruhi A. Linkages between flow regime, biota, and ecosystem processes: Implications for river restoration. Science 2019; 365(6459): 1–13.

9. Mitsch WJ, Wu X, Nairn RW, et al. Creating and restoring wetlands: A whole-ecosystem experiment inself-design. BioScience 1998; 48(12): 1019–1030.

10. Vannote RL, Minshall GW, Cummins KW, et al. The river continuum concept. Canadian Journal of Fisheries and Aquatic Sciences 1980; 37(1): 130–137.

11. Yuan X, Yuan J, Gao L, et al. Demonstration study on ecological restoration and landscape optimization of urban riverside littoral zone in the Three Gorges Reservoir area. Shanghai Urban Planning Review 2018; (6): 132–136.

12. Steven EG, Larsen EW. Ecological design of multifunctional open channels for flood control and conservation planning. Landscape and Urban Planning 2014; 131: 14–26.

13. Naiman RJ, Bilby RE. River ecology and management: Lessons from the pacific coastal ecoregion. New York: Springer-Verlag; 1998.

14. Ma G. Technical guidelines for wetland restoration in national wetland parks. Beijing: China Environmental Press; 2017.

15. Bisson PA, Montgomery DR, Buffington JM. Valley segments, stream reaches, and channel units. In: Hauer FR, Lamberti GA (editors). Methods in stream ecology. Oxford, UK: Academic Press; 2007.

16. Bornette G, Amoros C, Piégay H, et al. Ecological complexity of wetlands within a river landscape. Biological Conservation 1998; 85(1–2): 35–45.

17. Yuan X, Jia E, Chen S, et al. Wetland restoration analysis: Example of Wuyuan River in Haikou, Hainan province. Landscape Architecture Academic Journal 2019; (11): 2–6.

18. García D. Birds in ecological networks: Insights from bird-plant mutualistic interactions. Ardeola 2016; 63(1): 151–180.