img

官方微信

高级检索

中国沙漠 ›› 2026, Vol. 46 ›› Issue (1): 121-129.DOI: 10.7522/j.issn.1000-694X.2025.00317

• • 上一篇    

20012024年祁连山植被生态质量对气温和降水的响应

王川1(), 贺睿1, 赵文智2, 张勇勇2()   

  1. 1.湖北文理学院 资源环境与旅游学院,湖北 襄阳 441053
    2.中国科学院西北生态环境资源研究院 中国生态系统研究网络临泽内陆河流域研究站/干旱区生态安全与可持续发展全国重点实验室,甘肃 兰州 730000
  • 收稿日期:2025-11-23 修回日期:2025-12-16 出版日期:2026-01-20 发布日期:2026-03-09
  • 通讯作者: 张勇勇
  • 作者简介:王川(1993—),男,四川达州人,讲师,主要研究方向为生态遥感。E-mail: 11960@hbuas.edu.cn
  • 基金资助:
    甘肃省科技计划项目(24ZD13FA004)

Response of vegetation ecological quality to temperature and precipitation in the Qilian Mountains in 2001-2024

Chuan Wang1(), Rui He1, Wenzhi Zhao2, Yongyong Zhang2()   

  1. 1.College of Resource Environment and Tourism,Hubei University of Arts and Science,Xiangyang 441053,Hubei,China
    2.Chinese Ecosystem Network Research Linze Inland River Basin Research Station / State Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands,Northwest Institute of Eco-Environment and Resources,Chinese Academy of Science,Lanzhou 730000,China
  • Received:2025-11-23 Revised:2025-12-16 Online:2026-01-20 Published:2026-03-09
  • Contact: Yongyong Zhang

摘要:

祁连山是中国西北地区重要的生态安全屏障,准确评估其植被生态质量及其变化规律对于区域生态保护与可持续发展具有重要意义。本文基于植被净初级生产力和植被覆盖度构建祁连山植被生态质量指数(VEQI),系统分析了其时空变化特征及对气温和降水的响应规律。结果表明:VEQI空间分布呈由西北向东南逐渐升高的格局,VEQI高值区稳定性较强。2001—2024年VEQI整体呈显著上升趋势,年均增幅为0.08,其中草地和荒漠植被提升最为明显。VEQI变化表现出显著的年际波动特征,并存在约3 a的周期性变化。VEQI显著上升区域占研究区总面积的33.64%,主要分布于祁连山西部和东南部,表明这些区域植被恢复显著。未来VEQI变化总体呈上升但不稳定的趋势,反映出植被演变存在一定不确定性。偏相关分析结果显示,降水对VEQI的影响强于气温,且主要表现为促进作用。研究结果可为祁连山地区植被生态保护与生态治理政策制定提供科学依据。

关键词: 植被生态质量, 时空变化, 气温, 降水, 祁连山

Abstract:

The Qilian Mountains are an important ecological security barrier in Northwest China. Accurately assessing their vegetation ecological quality and its changing patterns is of great significance for regional ecological protection and sustainable development. This paper constructs the Vegetation Ecological Quality Index (VEQI) of the Qilian Mountains based on net primary productivity and vegetation coverage, and systematically analyzes its spatiotemporal variation characteristics and response patterns of VEQI to temperature and precipitation. The results indicate that the spatial distribution of VEQI exhibits a pattern of gradually increasing from northwest to southeast, with strong ecological quality stability in high-value areas. From 2001 to 2024, VEQI showed a significant upward trend with an average annual increase of 0.08, with grassland and desert vegetation experiencing the most pronounced improvement. The variation in VEQI demonstrates significant interannual fluctuations, accompanied by periodic changes of 3 years. The areas with significant increases account for 33.64% of the total study area, primarily distributed in the western and southeastern parts of the Qilian Mountains, indicating significant vegetation restoration in these regions. In the future, the overall trend of VEQI variation is expected to be upward but unstable, reflecting a certain degree of uncertainty in vegetation evolution. Partial correlation analysis results show that precipitation has a stronger impact on VEQI than temperature, primarily exerting a promoting effect. The research findings provide a scientific basis for the formulation of policies for vegetation ecological protection and ecological governance in the Qilian Mountains.

Key words: vegetation ecological quality, spatial and temporal changes, temperature, precipitation, Qilian Mountains

中图分类号: