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Spatio-Temporal Dynamics of Landscape Connectivity and Ecological Network Construction in Long Yangxia Basin at the Upper Yellow River

Author

Listed:
  • Fangning Shi

    (State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China)

  • Shiliang Liu

    (State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China)

  • Yi An

    (State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China)

  • Yongxiu Sun

    (State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China)

  • Shuang Zhao

    (State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China)

  • Yixuan Liu

    (State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China)

  • Mingqi Li

    (State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China)

Abstract

Analyzing multi-scale changes in landscape connectivity is an important way to study landscape ecological processes and also an important method to maintain regional biodiversity. In this study, graph-based connectivity was used to analyze the dynamics of the connectivity of natural habitats in the Long Yangxia basin of upper Yellow River valley from 1995 to 2015. We used the core areas of the nature reserves as the source regions to construct ecological networks under different thresholds, so as to identify key areas that can maintain overall landscape connectivity. The results showed that, from 1995 to 2015, the landscape connectivity in the study area increased for the first 10 years, and, since 2005, has declined. On a spatial scale, we found that both the connectivity of the ecological network and the length of the corridor increased with landscape resistance. Our analysis demonstrates the importance of the natural habitat in the southern part of the study area where connectivity was higher, as well as the sensitivity of connectivity of the northern area to human activities. Both large and medium patches contribute greatly to the overall landscape connectivity, while attention needs to be paid to the protection and management of small patches as they played “stepping stone” roles in maintaining and improving landscape connectivity. The proportions of landscape types that served as corridors, listed in order of their contribution to connectivity, were grassland, forestland, wetland and cultivated land. This suggests that, in addition to focusing on the protection of grassland and forest land, the reasonable planning and utilization of wetland and cultivated land will also have an impact on landscape connectivity. In addition, the protection of and improvement in habitats in the Sanjiangyuan Nature Reserve is of great significance to enhance landscape connectivity. Our study provides a scientific basis to support and improve regional landscape connectivity and biodiversity conservation over the next decade.

Suggested Citation

  • Fangning Shi & Shiliang Liu & Yi An & Yongxiu Sun & Shuang Zhao & Yixuan Liu & Mingqi Li, 2020. "Spatio-Temporal Dynamics of Landscape Connectivity and Ecological Network Construction in Long Yangxia Basin at the Upper Yellow River," Land, MDPI, vol. 9(8), pages 1-19, August.
    • Handle: RePEc:gam:jlands:v:9:y:2020:i:8:p:265-:d:396704
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    Citations

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    Cited by:

    1. Yanping Yang & Jianjun Chen & Renjie Huang & Zihao Feng & Guoqing Zhou & Haotian You & Xiaowen Han, 2022. "Construction of Ecological Security Pattern Based on the Importance of Ecological Protection—A Case Study of Guangxi, a Karst Region in China," IJERPH, MDPI, vol. 19(9), pages 1-22, May.
    2. Manuel Sánchez-Fernández & Juan Miguel Barrigón Morillas & David Montes González & José Juan de Sanjosé Blasco, 2022. "Impact of Roads on Environmental Protected Areas: Analysis and Comparison of Metrics for Assessing Habitat Fragmentation," Land, MDPI, vol. 11(10), pages 1-20, October.
    3. Jinghu Pan & Yimin Wang & Zhao Zhang, 2023. "Identification and Optimization of Ecological Network in Arid Inland River Basin Using MSPA and Spatial Syntax: A Case Study of Shule River Basin, NW China," Land, MDPI, vol. 12(2), pages 1-25, January.
    4. Fengyu Wang & Shuai Tong & Yun Chu & Tianlong Liu & Xiang Ji, 2023. "Spatio-Temporal Evolution of Key Areas of Territorial Ecological Restoration in Resource-Exhausted Cities: A Case Study of Jiawang District, China," Land, MDPI, vol. 12(9), pages 1-25, September.
    5. Shuang Song & Dawei Xu & Shanshan Hu & Mengxi Shi, 2021. "Ecological Network Optimization in Urban Central District Based on Complex Network Theory: A Case Study with the Urban Central District of Harbin," IJERPH, MDPI, vol. 18(4), pages 1-20, February.
    6. Yulin Liu & Yi Lu & Dawei Xu & Herui Zhou & Shengnan Zhang, 2024. "Enhancing the MSPA Method to Incorporate Ecological Sensitivity: Construction of Ecological Security Patterns in Harbin City," Sustainability, MDPI, vol. 16(7), pages 1-23, March.
    7. Tianlong Liu & Xiang Ji & Yaxi Gong, 2022. "Wetland Functional Area Division Method: A Correlation Analysis of Water Quality and Landscape Structure," Sustainability, MDPI, vol. 14(21), pages 1-26, October.
    8. Megan K. Jennings & Katherine A. Zeller & Rebecca L. Lewison, 2021. "Dynamic Landscape Connectivity Special Issue Editorial," Land, MDPI, vol. 10(6), pages 1-2, May.
    9. Yuanqing Li & Kaifang Shi & Yahui Wang & Qingyuan Yang, 2021. "Quantifying and Evaluating the Cultivated Areas Suitable for Fallow in Chongqing of China Using Multisource Data," Land, MDPI, vol. 10(1), pages 1-22, January.
    10. Jiameng Hu & Yanfang Liu & Jian Fang, 2021. "Ecological Corridor Construction Based on Least-Cost Modeling Using Visible Infrared Imaging Radiometer Suite (VIIRS) Nighttime Light Data and Normalized Difference Vegetation Index," Land, MDPI, vol. 10(8), pages 1-15, July.
    11. Heying Li & Jiayao Wang & Jianchen Zhang & Fen Qin & Jiyuan Hu & Zheng Zhou, 2021. "Analysis of Characteristics and Driving Factors of Wetland Landscape Pattern Change in Henan Province from 1980 to 2015," Land, MDPI, vol. 10(6), pages 1-15, May.
    12. Zhongwei Jing & Peng Chen, 2024. "Research on the Construction of a Composite Humanistic Forest Ecological Corridor in the Main Urban Area of Daqing City," Sustainability, MDPI, vol. 16(8), pages 1-20, April.

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