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林业科学 ›› 2024, Vol. 60 ›› Issue (12): 191-200.doi: 10.11707/j.1001-7488.LYKX20230488

• 研究简报 • 上一篇    

马边大风顶保护区森林砍伐后大熊猫栖息地恢复过程

李辉1(),张群艳1,蒲冠桦1,尹华康1,付励强2,毛泽恩3,张晋东1,*   

  1. 1. 西南野生动植物资源保护教育部重点实验室 西华师范大学生命科学学院 南充 637009
    2. 四川马边大风顶国家级自然保护区保护中心 乐山 614600
    3. 马边彝族自治县林业局 乐山 614600
  • 收稿日期:2023-10-12 出版日期:2024-12-25 发布日期:2025-01-02
  • 通讯作者: 张晋东 E-mail:lupus999@163.com
  • 基金资助:
    国家自然科学基金面上项目(U21A20193;42071279;32270551)

Recovery Process of Giant Panda Habitat After Deforestation in the Mabian Dafengding Nature Reserve

Hui Li1(),Qunyan Zhang1,Guanhua Pu1,Huakang Yin1,Liqiang Fu2,Zeen Mao3,Jindong Zhang1,*   

  1. 1. Key Laboratory of Southwest Wildlife Resources Protection Ministry of Education College of Life Sciences,China West Normal University Nanchong 637009
    2. Sichuan Mabian Dafengding National Natural Reserve Conservation Center Leshan 614600
    3. Mabian County Forestry Bureau Leshan 614600
  • Received:2023-10-12 Online:2024-12-25 Published:2025-01-02
  • Contact: Jindong Zhang E-mail:lupus999@163.com

摘要:

目的: 掌握砍伐后森林的恢复进程,为制定大熊猫栖息地修复措施提供基础依据。方法: 以马边大风顶保护区Landsat系列卫星数据为基础,使用支持向量机分类法,移动窗口法分析该保护区森林砍伐前后40年间森林覆盖度的变化特征,并结合野外实地样方调查评价保护区林地的破碎化和连通性。结果: 1) 保护区内的森林遭到严重砍伐,森林面积从295 km2降至230 km2,之后逐步恢复到274 km2并于近年达到277 km2,森林面积逐渐接近砍伐前水平,恢复速率也随之下降,且小规模偷伐盗伐仍在影响森林恢复。2) 保护区内被严重砍伐的区域较为集中,主要分布于丝厂拉达-觉罗豁防火公路沿线区域,以及永红管护区西南部与马拟管护点北方区域,导致保护区高连通性林地被阻隔分为3个区域。3) 丝厂拉达-觉罗豁防火公路沿线区域遭受砍伐最严重,该区域具有代表性,区域内的前期修复结果并未达到大熊猫适宜栖息地要求,仍需改进,宜试行森林恢复与保护实验。结论: 保护区内森林破碎化严重,各区块间存在分隔,对照大熊猫原始生境进行栖息地修复,建立大熊猫生境廊道并加强管控是必要且亟需的措施。

关键词: 森林砍伐, 森林恢复, 移动窗口法, 大熊猫栖息地, 马边大风顶保护区

Abstract:

Objective: The forest ecosystem composed of tall trees plays an irreplaceable role in Giant Panda habitat. Since 1990s, forest in Mabian Dafengding Nature Reserve suffered from deforestation by forest industry enterprises, causing serious impacts on the habitat of Giant Pandas. With the implementation of forest conservation projects such as the Natural Forest Protection Project, the forest vegetation has gradually recovered. Understanding the process of forest recovery after logging provides a fundamental basis for formulating restoration measures for the Giant Panda habitat. Method: Based on Landsat satellite data, this study conducted an analysis using the Support Vector Machine (SVM) classification method and the moving window approach to examine changes in forest cover over a 40-year period before and after forest logging in the Mabian Dafengding Nature Reserve. Field surveys were also conducted to assess habitat fragmentation and connectivity. Result: The research findings indicate that the forest within the reserve experienced heavily logging, the forest area decreasing from 295km2 to 230 km2, followed by a gradual recovering to 274km2 and reaching 277km2 in recent year. With the forest area gradually approaching the pre-logging level, the recovery rate decreasing as well, moreover, small-scale illegal logging is still damaging forest restoration. The heavily logged areas are concentrated mainly along the Sichanglada-Jueluohuo fire prevention road and in the southwestern region of the Yonghong conservation zone and the northern area of the Mani conservation point, resulting in the highly connected forestland in the reserve being blocked and divided into three zones. Among these, the Sichanglada-Jueluohuo fire prevention road area is the most severely affected and representative. Early-stage restoration efforts in this area did not reach the requirements for suitable habitat for Giant Pandas, improvement is in need, area is suitable for experimenting with forest recovery and protection measures. Conclusion: Forest fragmentation is pronounced within the reserve, with distinct separations between different blocks. It is necessary and urgent to carry out habitat restoration which aim at Giant Pandas` original habitat, establish Giant Pandas` habitat corridor, and strengthen control measures.

Key words: deforestation, forest restoration, moving window method, habitat of giant panda(Ailuropoda melanoleuca), Mabian Dafengding Nature Reserve

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