A Study on the Evolutionary Characteristics of Coastal Wetland Policies in Liaoning Province: Based on Text Mining and Knowledge Graph Methods
- 1Key Research Base of Humanities and Social Sciences of the Ministry of Education, Institute of Marine Sustainable Development, Liaoning Normal University, Dalian 116029, China
- 2College of Geographical Sciences, Liaoning Normal University, Dalian 116029, China
Abstract
To reveal the evolutionary characteristics of coastal wetland policies in Liaoning Province, this study collected 102 policy documents issued by Liaoning Province and its prefecture-level cities from 1999 to 2025. Using the Word2Vec word-embedding model, Term Frequency-Inverse Document Frequency(TF-IDF), co-occurrence network analysis, and knowledge graph visualization, the staged evolution of these policies was analyzed in terms of policy quantity, thematic change, hotspot keywords, and policy tool allocation. The results show that: (1) the number of coastal wetland policy documents in Liaoning Province generally increased, indicating growing policy attention and an expanding policy supply; (2)policy themes evolved from basic protection to ecological restoration and then to monitoring and management; (3)the co-occurrence network of policy hotspot keywords shifted from a loose structure to multi-node coordination, reflecting the increasing systematicity and complexity of coastal wetland governance issues; (4)policy tool allocation gradually shifted from command-and-control dominance to coordinated use of multiple tools, while cross-departmental coordination mechanisms, the classified and hierarchical wetland management system, and the policy tool structure still need further improvement. Accordingly, collaborative governance mechanisms, the classified and hierarchical management system, and the policy tool mix should be improved to enhance the effectiveness of coastal wetland protection and governance in Liaoning Province.
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BibTeX
@article{dong2026study,
title = {{A Study on the Evolutionary Characteristics of Coastal Wetland Policies in Liaoning Province: Based on Text Mining and Knowledge Graph Methods}},
author = {HUANG Dong and SUI Renhui and PANG Tianyi},
journal = {Haiyang Kaifa yu guanli},
year = {2026},
month = jul,
doi = {10.20016/j.cnki.hykfygl.2026.07.007},
url = {https://doi.org/10.20016/j.cnki.hykfygl.2026.07.007},
note = {CC BY-NC-ND},
}
RIS
TY - JOUR
TI - A Study on the Evolutionary Characteristics of Coastal Wetland Policies in Liaoning Province: Based on Text Mining and Knowledge Graph Methods
AU - HUANG Dong
AU - SUI Renhui
AU - PANG Tianyi
PY - 2026
DA - 2026/07/01
JO - Haiyang Kaifa yu guanli
DO - 10.20016/j.cnki.hykfygl.2026.07.007
UR - https://doi.org/10.20016/j.cnki.hykfygl.2026.07.007
AB - To reveal the evolutionary characteristics of coastal wetland policies in Liaoning Province, this study collected 102 policy documents issued by Liaoning Province and its prefecture-level cities from 1999 to 2025. Using the Word2Vec word-embedding model, Term Frequency-Inverse Document Frequency(TF-IDF), co-occurrence network analysis, and knowledge graph visualization, the staged evolution of these policies was analyzed in terms of policy quantity, thematic change, hotspot keywords, and policy tool allocation. The results show that: (1) the number of coastal wetland policy documents in Liaoning Province generally increased, indicating growing policy attention and an expanding policy supply; (2)policy themes evolved from basic protection to ecological restoration and then to monitoring and management; (3)the co-occurrence network of policy hotspot keywords shifted from a loose structure to multi-node coordination, reflecting the increasing systematicity and complexity of coastal wetland governance issues; (4)policy tool allocation gradually shifted from command-and-control dominance to coordinated use of multiple tools, while cross-departmental coordination mechanisms, the classified and hierarchical wetland management system, and the policy tool structure still need further improvement. Accordingly, collaborative governance mechanisms, the classified and hierarchical management system, and the policy tool mix should be improved to enhance the effectiveness of coastal wetland protection and governance in Liaoning Province.
SN - 1005-9857
ER -