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Forest and Grassland Resources Research ›› 2024›› Issue (5): 138-147.doi: 10.13466/j.cnki.lczyyj.2024.05.015

• Technical Application • Previous Articles     Next Articles

Analysis of Ecological Landscape Pattern Changes in Gongga Mountain National Nature Reserve From 1996 to 2022

YE Danni1(), YAO Manqing2, FU Hong1()   

  1. 1. College of Architecture and Environment,Sichuan University,Chengdu 610065,China
    2. School of Architecture and Urban Planning,Tongji University,Shanghai 200092,China
  • Received:2024-09-03 Revised:2024-10-05 Online:2024-10-28 Published:2025-04-18

Abstract:

The Gongga Mountain National Nature Reserve plays a vital ecological role,focusing on the protection of alpine biodiversity and diverse ecosystems.Exploring the evolution characteristics of its landscape pattern is of crucial significance for maintaining the integrity of the structure and function of the unique ecosystem and formulating corresponding biodiversity protection plans.Long-term monitoring and analysis of landscape patterns also help identify trends in geological disaster risks,thereby mitigating potential losses.Based on remote sensing data and the Geographic Information System(GIS),remote sensing images in 1996,2009 and 2022 were selected to analyze the characteristics of landscape pattern changes in the Gongga Mountain National Nature Reserve over the 26 years before and after the 2008 earthquake.1)Grasslands and forests dominate the Gongga Mountain National Nature Reserve,comprising 85% of the total area,while ice and snow areas have steadily declined.2)Between 1996 and 2009,the earthquake significantly reduced the number of landscape patches,leading to decreased landscape dominance,simplified landscape types,and intensified fragmentation.3)From 2010 to 2022,ecological protection efforts slowed the reduction in patches,reduced fragmentation,and improved landscape connectivity.

Key words: Gongga Mountain, nature reserve, landscape pattern, seismic hazards, landscape index

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