Quantitative evaluation of riparian ecological restoration in Liao River based on remote sensing

被引：0
|
作者：
Yang G. [1 ,2 ]
Li Y. [1 ]
Fu B. [3 ]
Wu J. [4 ]
Xing Z. [1 ,2 ]
机构：
[1] Northeast Institute of Geography and Agroecology, Chinese Academy of Science, Changchun
[2] University of Chinese Academy of Science, Beijing
[3] College of Geomatics and Geoinformation, Guilin University of Technology, Guilin
[4] Song-Liao Basin Aquatic Environmental Science Research Institute, Changchun
来源：
Li, Ying (liying@neigae.ac.cn) | 2018年 / International Research and Training Center on Erosion and Sedimentation and China Water and Power Press卷 / 49期
关键词：
Hot Spot Analysis; Physical structural integrality; Riparian ecological restoration; RS and GIS; Spatial cluster distribution;
D O I：
10.13243/j.cnki.slxb.20171143
中图分类号：
学科分类号：
摘要：
Physical Structural Integrality (PSI) is a fundamental feature of riparian ecosystem. Riparian ecological restoration effect is able to be evaluated by quantitatively analyzing PSI’s variation. This study is addressed to evaluate riparian ecological restoration of Liao River conservation area using PSI value in 2010 and 2016. PSI value is calculated through evaluation indicators, e.g., vegetation percent cover,water level width and human disturbance derived from remote sensing (RS) data and validated by field measurements. The variation and clusters of PSI values were calculated by Hot and Cold Spots Analysis (Getis-Ord General Gi Statistics) to discriminate stable and weak area of riparian zones. The results indicated that there was no significant difference between evaluation results based RS and field measurements. The average value of PSI increased from 63.47 to 72.07 after the riparian ecological restoration, and the length of riparian zone under the sub-healthy condition decreased 189.5 km which accounted for over 97.1% of 2010. The riparian zone achieved significant restoration effect accounted for over 27.5% of the entire riparian zone of Liao River,then the structural stability was obviously improved. The riparian PSI value in 2016 existed five statistically significant hot and cold spots, on which local spatial autocorrelation was strong. The cold spots with low-low clusters of PSI values were in the vulnerable riparian zone, which was consistent to the riparian zone with poor ecological restoration effect. The research results can provide reference for plain rivers in northern China to evaluate riparian ecological restoration effect and indicate restoration position in the future, which are of particularly important application value for the ecological restoration projects lacking field measurements. © 2018, China Water Power Press. All right reserved.
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页码：608 / 618
页数：10
相关论文
共 16 条
  • [1] Nilsson C., Berggren K., Alterations of Riparian Ecosystems Caused by River Regulation: Dam operations have caused global-scale ecological changes in riparian ecosystems. How to protect river environments and human needs of rivers remains one of the most important questions of our time, AIBS Bulletin, 50, 9, pp. 783-792, (2000)
  • [2] Gregory S.V., Swanson F.J., Mckee W.A., Et al., An ecosystem perspective of riparian zones, Biosci-ence, 41, 8, pp. 540-551, (1991)
  • [3] Maitre V., Cosandey A.C., Desagher E., Et al., Effectiveness of groundwater nitrate removal in a river ri-parian area: the importance of hydrogeological conditions, Journal of Hydrology, 278, 1, pp. 76-93, (2003)
  • [4] Jenkins S.R., Betts M.G., Huso M.M., Et al., Habitat selection by juvenile Swainson's thrushes(Catharus us-tulatus)in headwater riparian areas, Northwestern Oregon, USA, Forest Ecology and Management, 305, pp. 88-95, (2013)
  • [5] Pusey B.J., Arthington A.H., Importance of the riparian zone to the conservation and management of freshwa-ter fish: a review, Marine and Freshwater Research, 54, 1, pp. 1-16, (2003)
  • [6] Restoration of aquatic ecosystems: science, technology, and Public Policy, (1992)
  • [7] Kauffman J.B., Beschta R.L., Otting N., Et al., An ecological perspective of riparian and stream restoration in the western United States, Fisheries, 22, 5, pp. 12-24, (1997)
  • [8] Postel S., Richter B., Rivers for Life: Managing Water for People and Nature, (2012)
  • [9] Woolsey S., Capelli F., Gonser T., Et al., A strategy to assess river restoration success, Freshwater Biol-ogy, 52, 4, pp. 752-769, (2007)
  • [10] Klein L.R., Clayton S.R., Alldredge J.R., Et al., Long-Term Monitoring and Evaluation of the Lower Red River Meadow Restoration Project, Idaho, USA, Restoration Ecology, 15, 2, pp. 223-239, (2007)
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