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Updated: Nov 4, 2025

Divergence of Root Microbiota in Different Habitats based on Weighted Correlation Networks
Published on: September 25, 2021
[Comprehensive evaluation of the evolution of ecological network structure in Tianjin, China from a multi-dimensional
Xiang-Ping Liu1, Zhen Zhang2, Ling-Yu Li1
1School of Geology and Geomatics, Tianjin Chengjian University, Tianjin 300384, China.
Abstract:
Based on the construction of ecological network in Tianjin in 2000, 2010 and 2020, we evaluated the structural evolution of Tianjin ecological network from the multi-dimensional perspective of source-corridor-node-whole, using complex network evaluation index and landscape pattern index integrated with the stability, uniformity and connectivity indices. The results showed that from 2000 to 2020, the ecological source areas in Tianjin significantly shrank and degraded, be uneven in spatial distribution. Ecological corridors became sparse. Landscape fragmentation and shape complexity first increased and then decreased. The average length of corridors in 2000 and 2010 was shorter, with the bioflow efficiency being relatively high. In 2000, 2010, and 2020, the number of nodes with high significance accounted for 35.7%, 29.4% and 21.4% of the statistical nodes respectively. In 2020, the network connectivity robustness and vulnerability robustness showed substantial fluctuation, and the network was the most unstable. In 2010, the ecological network was of high connectivity and complexity, while in 2000 and 2020, it was more general. In 2000, the network uniformity was the highest, followed by 2010, and lowest in 2020.
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