基于NDVI的植被动态和对2001年至2020年新疆气候变化和人类活动的反应
Yuanbo Lu1,2, Yang Yu1,2,3,4, Lingxiao Sun5
1State Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, 830011, Xinjiang, China.
Scientific reports
|July 16, 2025
概括
全球气候变化导致干旱,促使中国的森林植被. 这项研究揭示了新疆的植被变化,表明尽管区域退化,但人类活动显著影响并改善了整体植被健康.
科学领域:
- 环境科学 环境科学
- 生态生态学 生态生态学
- 气候变化研究 气候变化研究
背景情况:
- 全球气候变化和人类活动的增加正在使全球干旱的频率和严重程度不断升级.
- 中国广泛的造林计划旨在打击生态退化,特别是在干旱地区.
- 评估这些努力在新疆等干旱地区的有效性至关重要.
研究的目的:
- 研究2001年至2020年新疆植被变化的时间和空间动态.
- 分析植被变化 (NDVI) 与气候因素 (温度,降水) 之间的关联.
- 通过残留分析评估人类活动对植被动态的影响.
主要方法:
- 使用曼-肯达尔 (MK) 趋势测试和相关性分析进行趋势和关联评估.
- 使用的正常化植被指数 (NDVI) 数据和高分辨率的气象数据.
- 进行了残留分析,以区分气候驱动的变化与人类活动的影响.
主要成果:
- 在新疆各季节和各地区的NDVI变化中观察到显著的时间和空间异质性.
- 确定温度是跨年,春季和秋季NDVI的主要驱动因素,而降水则影响夏季和冬季植被生长.
- 发现人类活动导致了新疆北部部分地区的植被退化,但总体而言,导致了超过60%的NDVI变化,导致了积极的趋势.
结论:
- 新疆的植被变化表现出由气候和人类活动影响的复杂动态.
- 植林和其他人类干预对观察到的整体积极的植被趋势发挥了重要作用.
- 有效的植被恢复和保护战略必须整合人类活动对生态系统长期可持续性的重大影响.
相关概念视频
Responses to Drought and Flooding
11.0K
Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.
11.0K
Global Climate Change
24.8K
Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.
24.8K
Threats to Biodiversity
22.9K
There have been five major extinction events throughout geological history, resulting in the elimination of biodiversity, followed by a rebound of species that adapted to the new conditions. In the current geological epoch, the Holocene, there is a sixth extinction event in progress. This mass extinction has been attributed to human activities and is thus provisionally called the Anthropocene. In 2019 the human population reached 7.7 billion people and is projected to comprise 10 billion by...
22.9K
Responses to Heat and Cold Stress
13.9K
Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.
13.9K
Adaptations that Reduce Water Loss
26.3K
Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.
26.3K
What is Climate?
18.9K
Climate refers to the prevailing weather conditions in a specific area over an extended period. As the saying goes, “Climate is what you expect. Weather is what you get.” Climate is influenced by geographic factors, such as latitude, terrain, and proximity to bodies of water.
18.9K


