Spatiotemporal differentiation pattern of Chaohu Lake shoreline and the impact of human activity and natural factor: a remote sensing and statistical analysis

Jiaying WANG; Jingyi GAO; Yonghui ZHU; Yancheng ZHANG; Xiaofei SHEN; Yangyang LIANG; Pei HONG

doi:10.1007/s00343-026-5221-6

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Spatiotemporal differentiation pattern of Chaohu Lake shoreline and the impact of human activity and natural factor: a remote sensing and statistical analysis

Updated：2026-05-08

- Spatiotemporal differentiation pattern of Chaohu Lake shoreline and the impact of human activity and natural factor: a remote sensing and statistical analysis
- Spatiotemporal differentiation pattern of Chaohu Lake shoreline and the impact of human activity and natural factor: a remote sensing and statistical analysis
- 海洋湖沼学报(英文) 2026年页码：1-10
- Affiliations：
  
  1.Collaborative Innovation Center of Recovery and Reconstruction of Degraded Ecosystem in Wanjiang Basin Co-founded by Anhui Province and Ministry of Education, Provincial Key Laboratory of Biotic Environment and Ecological Safety in Anhui, School of Ecology and Environment, Anhui Normal University, Wuhu 241002, China
  2.Key Laboratory of Freshwater Aquaculture and Enhancement of Anhui Province, Fisheries Research Institute, Anhui Academy of Agricultural Sciences, Hefei 230001, China
- Author bio：
  
  liangyy10214@126.com
  peihong@ahnu.edu.cn
- Funds：
  
  the Monitoring of Aquatic Living Resources in Key Waters of Anhui Province(2023AHNYNC016XQ)
- DOI：10.1007/s00343-026-5221-6
  中图分类号：
- 收稿：2025-06-18，
  
  网络首发：2026-05-08，
- Accepted：
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Jiaying WANG, Jingyi GAO, Yonghui ZHU, 等. Spatiotemporal differentiation pattern of Chaohu Lake shoreline and the impact of human activity and natural factor: a remote sensing and statistical analysis[J/OL]. 海洋湖沼学报(英文), 2026,1-10.

WANG Jiaying,GAO Jingyi,ZHU Yonghui,et al.Spatiotemporal differentiation pattern of Chaohu Lake shoreline and the impact of human activity and natural factor: a remote sensing and statistical analysis[J].Journal of Oceanology and Limnology,
Jiaying WANG, Jingyi GAO, Yonghui ZHU, 等. Spatiotemporal differentiation pattern of Chaohu Lake shoreline and the impact of human activity and natural factor: a remote sensing and statistical analysis[J/OL]. 海洋湖沼学报(英文), 2026,1-10. DOI： 10.1007/s00343-026-5221-6.

WANG Jiaying,GAO Jingyi,ZHU Yonghui,et al.Spatiotemporal differentiation pattern of Chaohu Lake shoreline and the impact of human activity and natural factor: a remote sensing and statistical analysis[J].Journal of Oceanology and Limnology, DOI：.

摘要

Abstract

Changes in lake shorelines can significantly impact its ecological environment and lead to the erosion of wetland soils. Accurate extraction and continuous monitoring of lake shorelines are critically important for protecting and managing these ecosystems. To characterize the evolution of Chaohu Lake shoreline from 2000 to 2020

we used Landsat remote sensing imagery in combination with the modified normalized difference water index (MNDWI) and the digital shoreline analysis system (DSAS). The spatiotemporal changes of the shoreline were quantified using the end point rate (EPR) and linear regression rate (LRR) metrics. Results indicate that between 2000 and 2020

the surface area of Chaohu Lake shrank by 2.38 km

and its shoreline length decreased by 2.89 km

following a pattern of initial expansion followed by contraction. The most rapid shoreline retreat (6.63 km) occurred between 2005 and 2011. There was significant spatial variability in the shoreline change

especially in areas such as Hongshi Bay and Jindou Donglu

where the highest erosion and accretion rates were 22.09 m/a (EPR) and 20.72 m/a (LRR)

respectively. Notably

the western part of the lake (near Hefei) experienced greater human disturbance and correspondingly higher annual shoreline change rates (EPR: 0.73 m/a; LRR: 0.91 m/a) than the eastern part (EPR: 0.60 m/a; LRR: 0.47 m/a). Overall

these findings provide a scientific basis for ecological resto

ration and sustainable shoreline management of Chaohu Lake.

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references

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