Journal
ECOLOGICAL ENGINEERING
Volume 104, Issue -, Pages 184-194Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ecoleng.2017.04.032
Keywords
Spat iotemporal changes; Marsh; The Sanjiang Plain; Landscape pattern; Wetland restoration
Funding
- Technological Basic Research Program of China [2013FY111800]
- China Scholarship Council
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The marshes have undergone dramatic loss in the Sanjiang Plain since the 1950s. This paper analyzed the spatiotemporal changes of the marshes using the transition probabilities index, loss rate, and landscape indices. We also used a trajectory analysis method to trace every location of marshes over multiple points in time and to quantitatively estimate the impact of human activities on the marsh changes since the 1950s. This study indicates that the marsh area declined sharply by 79.4% (approximately 2.99 million ha) from 1954 to 2015. A large area of marsh was reclaimed as cultivated land from 1954 to 2015. The changes in the related landscape indices showed the large-scale loss of the marsh area and marsh fragmentation in the study period. Human activities were the dominant factor (87.86%) that influenced the marsh changes in the Sanjiang Plain during the last 60 years compared with natural factors. These findings can provide valuable information for better understanding wetlands changes and implementing sustainable management strategies for wetlands (such as wetland restoration). (C) 2017 Elsevier B.V. All rights reserved.
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