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Zonation and Directional Dynamics of Mangrove Forests Derived from Time-Series Satellite Imagery in Mai Po, Hong Kong

Author

Listed:
  • Mingfeng Liu

    (Institute of Space and Earth Information Science, The Chinese University of Hong Kong, New Territories, Hong Kong 999077, China
    Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen 518000, China)

  • Hongsheng Zhang

    (Institute of Space and Earth Information Science, The Chinese University of Hong Kong, New Territories, Hong Kong 999077, China
    Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen 518000, China)

  • Guanghui Lin

    (Ministry of Education Key Laboratory for Earth System Modeling, Department of Earth System Science, Tsinghua University, Beijing 100084, China)

  • Hui Lin

    (Institute of Space and Earth Information Science, The Chinese University of Hong Kong, New Territories, Hong Kong 999077, China
    Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen 518000, China
    Key Laboratory of Poyang Lake Wetland and Watershed Research, Ministry of Education, Jiangxi Normal University, Nanchang 330022, China)

  • Danling Tang

    (Guangdong Key Lab of Ocean Remote Sensing, State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China)

Abstract

Mangrove deforestation is occurring globally at a rapid rate, and is causing serious ecological and economic losses on all scales. Monitoring mangrove changes is the first important step for mangrove management and conservation. Zonation of mangrove species (ZMS) is the predictable and discrete ordering of mangrove species caused by a unique, intertidal environment. Mapping the ZMS is critical to understanding the mangrove community at a species level. In this paper, the Standard Deviational Ellipse (SDE) was proposed as a method to evaluate mangrove species from a new dimension of directional changes. Three dominant mangrove species, Kandelia obovata (KO), Avicennia marina (AM), and Acanthus ilicifolius (AI), in Mai Po, Hong Kong were analyzed using SDEs based on the time series Système Pour l’Observation de la Terre (SPOT) and Gaofen-1 (GF-1) satellite images. The SDE results demonstrated that in the past 25 years: (1) The overall spatial extent of the mangroves in Mai Po expanded significantly, approximately from 150 to 350 Ha, and show a zonation pattern with a clear sequence of species perpendicular to the shoreline; (2) KO was the dominant species in most years, showing the strongest directional characteristic; (3) All three species zones have moved toward the north and west, as observed by the SDE centers. The SDE was proved to be a useful tool for understanding the temporal and spatial changes of mangrove zonation.

Suggested Citation

  • Mingfeng Liu & Hongsheng Zhang & Guanghui Lin & Hui Lin & Danling Tang, 2018. "Zonation and Directional Dynamics of Mangrove Forests Derived from Time-Series Satellite Imagery in Mai Po, Hong Kong," Sustainability, MDPI, vol. 10(6), pages 1-16, June.
    • Handle: RePEc:gam:jsusta:v:10:y:2018:i:6:p:1913-:d:151264
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    Citations

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    Cited by:

    1. Avit K. Bhowmik & Rajchandar Padmanaban & Pedro Cabral & Maria M. Romeiras, 2022. "Global Mangrove Deforestation and Its Interacting Social-Ecological Drivers: A Systematic Review and Synthesis," Sustainability, MDPI, vol. 14(8), pages 1-24, April.
    2. Jianyong Dong & Xiaohong Wang & Jinlong Li & Chenxi Hao & Linlin Jiao, 2022. "The Spatial-Temporal Differentiation of Aerosol Optical Properties and Types in the Beijing–Tianjin–Hebei Region Based on the Ecological Functional Zones," Sustainability, MDPI, vol. 14(19), pages 1-14, October.
    3. Yu-Chi Chen & Chun-Han Shih, 2019. "Sustainable Management of Coastal Wetlands in Taiwan: A Review for Invasion, Conservation, and Removal of Mangroves," Sustainability, MDPI, vol. 11(16), pages 1-16, August.

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