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干旱区地理 ›› 2025, Vol. 48 ›› Issue (10): 1828-1840.doi: 10.12118/j.issn.1000-6060.2025.002 cstr: 32274.14.ALG2025002

• 生态与环境 • 上一篇    下一篇

基于归一化植被指数的艾比湖湿地国家级自然保护区自然植被保护恢复成效评估

唐玉倩1(), 马玉凤2, 唐梦迎1,3,4, 徐战江1, 肖雨萱1, 夏楠1,3,4(), 马勇刚1,3,4   

  1. 1.新疆大学地理与遥感科学学院,新疆 乌鲁木齐 830046
    2.新疆艾比湖湿地国家级自然保护区管理局,新疆 博乐 833400
    3.新疆大学新疆绿洲生态自治区重点实验室,新疆 乌鲁木齐 830046
    4.自然资源部荒漠-绿洲生态监测与修复工程技术创新中心,新疆 乌鲁木齐 830002
  • 收稿日期:2025-01-03 修回日期:2025-02-04 出版日期:2025-10-25 发布日期:2025-10-27
  • 通讯作者: 夏楠(1991-),男,副教授,主要从事干旱区生态环境遥感等方面的研究. E-mail: xn_gis@xju.edu.cn
  • 作者简介:唐玉倩(2000-),女,硕士研究生,主要从事干旱区生态修复等方面的研究. E-mail: tyqtyq0228@163.com
  • 基金资助:
    吐哈盆地土地资源承载力与生态农业调查评估(2022xjkk11);新疆精河温带荒漠生态系统野外科学观测平台建设(PT2107)

Evaluation of the effectiveness of natural vegetation protection and restoration in Ebinur Lake Wetland National Nature Reserve based on normalized difference vegetation index

TANG Yuqian1(), MA Yufeng2, TANG Mengying1,3,4, XU Zhanjiang1, XIAO Yuxuan1, XIA Nan1,3,4(), MA Yonggang1,3,4   

  1. 1. College of Geography and Remote Sensing Sciences, Xinjiang University, Urumqi 830046, Xinjiang, China
    2. Administration of Xinjiang Ebinur Lake Wetland National Nature Reserve, Bole 833400, Xinjiang, China
    3. Key Laboratory of Oasis Ecology, Xinjiang University, Urumqi 830046, Xinjiang, China
    4. Technology Innovation Center for Ecological Monitoring and Restoration of Desert-Oasis, MNR, Urumqi 830002, Xinjiang, China
  • Received:2025-01-03 Revised:2025-02-04 Published:2025-10-25 Online:2025-10-27

摘要:

艾比湖湿地国家级自然保护区是中国西北干旱区重要的生态屏障,其植被保护成效评估对区域生态安全维护和生态文明建设具有重要意义。然而,当前缺乏对该保护区不同保护级别(设立前、自治区级及国家级)和内部典型区域(人类活动区或生态恢复区)的植被保护成效评估。基于1995—2022年归一化植被指数(Normalized difference vegetation index,NDVI),利用Mann-Kendall趋势检验、稳定性分析、地理探测器和Hurst指数等方法,对保护区植被恢复成效进行评估。结果表明:(1) 保护区植被覆盖显著增加,退化区域仅占1.75%;植被覆盖稳定性呈现显著的空间异质性,其中相对较低波动和中等波动区域占主导地位。(2) 保护区的设立对植被覆盖产生正向影响,植被改善程度呈现阶段式上升,升级为国家级自然保护区后,改善效果最为显著;然而植被恢复与人类活动的相互作用复杂,其改善程度可能与原始土地利用状况有关。土地利用类型是影响植被覆盖变化的主要驱动力,与其他影响因子交互作用时均表现出较强的影响力。(3) Hurst指数分析表明,保护区未来植被变化差异显著,50.26%的区域表现出反向持续性。其中,过去改善而未来可能退化的区域占据50.07%,需重点关注以上潜在退化区域,实施相应的保护措施。

关键词: 保护成效, NDVI, 趋势分析, 稳定性分析, 艾比湖湿地国家级自然保护区

Abstract:

Ebinur Lake Wetland National Nature Reserve is an important ecological barrier in the arid zone of northwest China; the assessment of the effectiveness of its vegetation protection is of great significance in the maintenance of regional ecological security and the construction of ecological civilization. However, there is a lack of assessment of the effectiveness of vegetation protection at different protection levels (pre-establishment, autonomous region level, and the national level) and typical areas (human activities area or ecological restoration area). Based on the normalized difference vegetation index (NDVI) from 1995 to 2022, the effectiveness of vegetation restoration in protected areas was evaluated using the Mann-Kendall trend test, stability analysis, geographic detector, and Hurst index. The results showed that: (1) The vegetation cover of the protected area increased significantly, and the degraded area only accounted for 1.75%; the stability showed obvious spatial heterogeneity, and the areas of relatively low fluctuation and medium fluctuation were widely distributed. (2) The protected area established has positively impacted the vegetation cover, and the degree of vegetation improvement showed a phased increase, with the most significant improvement occurring after upgrading to a national nature reserve. However, the interaction between vegetation restoration and human activities is complex, and the degree of improvement may be related to the original land use status. Land use type was the main driver of vegetation cover change and had a strong influence when interacting with other influencing factors. (3) Analysis of the Hurst index revealed significant future vegetation changes in the protected area, with 50.26% of the area showing reverse persistence. Overall, 50.07% of the areas that were improved in the past may be degraded in the future, and there is a need to focus on these potential areas of degradation and implement appropriate conservation measures.

Key words: protection effectiveness, NDVI, trend analysis, stability analysis, Ebinur Lake Wetland National Nature Reserve