ORIGINAL RESEARCH
Mechanisms and Spatiotemporal Evolution of Ecosystem Quality in the Wenchuan Earthquake Disaster Area
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School of Geomatics, Zhejiang University of Water Resources and Electric Power, Hangzhou
 
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Satellite Environment Center of the Ministry of Ecology and Environment, Beijing
 
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Engineering Research Center of Digital Twin Basin of Zhejiang Province, Hangzhou
 
 
Submission date: 2024-03-14
 
 
Final revision date: 2024-04-24
 
 
Acceptance date: 2024-05-27
 
 
Online publication date: 2024-10-21
 
 
Publication date: 2025-04-04
 
 
Corresponding author
Jianyong Hu   

Engineering Research Center of Digital Twin Basin of Zhejiang Province, China
 
 
Pol. J. Environ. Stud. 2025;34(4):3909-3918
 
KEYWORDS
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ABSTRACT
To sustain ecosystem development, ecosystem quality reflects the basic capabilities of ecosystems. This study used a three-layer analysis method to explain seismic ecological effects and reveal the evolution mechanism. The results are as follows: (1) The north had better vegetation growth and quality than the south, west, and east based on basic characteristics; In terms of stability characteristics, vegetation growth in the north is better than that in the south, and vegetation quality in the south is better than that in the north; In addition, in terms of restoration degree, both vegetation growth and vegetation quality have been restored. (2) A change in the ecosystem pattern is the root cause of ecosystem quality changes. (3) Ecological effect evolution has the following aspects. The spatial and temporal changes of background change: the urban area increased by 0.82%, while the grassland and farmland areas decreased by 0.76% and 0.68%, respectively. The heterogeneity of the background is reflected in the landscape pattern: the completion of the forest is reduced, the fragmentation is increased, the actual situation is not improved despite the increase of forest area, and the living space provided for species is reduced. The background evolution is reflected in the correlation: the forest has a strong promoting force to the ecosystem change, while the city restrains the development of the ecosystem. (4) The background evolution is reflected in the coupling relationship: although the coupling relationship has fluctuations, it is in a benign change. The calculation presented in this paper is rational and objective, reflecting the evolution of ecosystems.
CONFLICT OF INTEREST
The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
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