相关实验视频

Updated: Jul 5, 2025

Assessing the Particulate Matter Removal Abilities of Tree Leaves

Assessing the Particulate Matter Removal Abilities of Tree Leaves

Published on: October 7, 2018

评估气候和人类活动对中国北部植被变化的影响

Meizhu Chen¹, Yayong Xue¹, Yibo Xue¹

¹College of Geography and Remote Sensing Science, Xinjiang University, Urumqi, 830046, China; Xinjiang Key Laboratory of Oasis Ecology, Xinjiang University, Urumqi, 830046, China.

Environmental research

|January 23, 2024

概括

中国北部的植被覆盖面从1990年至2018年增加,主要是由于人类活动对气候变化的影响. 这项研究分析了部分植被覆盖 (FVC) 的动态和影响因素.

科学领域:

生态生态学生态生态学
环境科学环境科学
遥感遥感遥感遥感

背景情况:

中国北部的部分植被覆盖 (FVC) 由于各种干扰而发生了重大变化.
了解这些动态对于区域生态评估和保护至关重要.

研究的目的:

调查从1990年到2018年在中国北部的FVC的动态.
量化气候变化和人类活动对FVC变化的影响.
确定植被覆盖动态的主要驱动因素.

主要方法:

趋势分析的Sen + Mann-Kendall测试. 趋势分析的SEN + Mann-Kendall测试. 趋势分析的SEN + Mann-Kendall测试. 趋势分析的SEN + Mann-Kendall测试. 趋势分析的SEN + Mann-Kendall测试. 趋势分析的SEN + Mann-Kendall测试.
部分相关性分析以评估关系.
结构方程建模 (SEM) 用于确定因果影响.

主要成果:

在中国北部的FVC总体增长 (1990-2018),在新疆,洛斯高原和东北中国平原显著增长.
降水和土壤湿度是影响FVC的关键气候因素.
人类活动对FVC的影响比气候变化更大.

结论:

中国北部的植被动态是复杂的,受到气候和人为因素的影响.
人类活动在塑造FVC趋势方面发挥着主导作用.
这些发现为该地区的生态保护战略提供了基础.

关键词:

部分植被覆盖 (FVC) 部分植被覆盖 (FVC)中国北方的中国北方.社会经济的社会经济.结构方程建模 (SEM) 结构方程建模

更多相关视频

Simulating Temperature in a Soil Incubation Experiment

Simulating Temperature in a Soil Incubation Experiment

Published on: October 28, 2022

Simulating Impacts of Ice Storms on Forest Ecosystems

Simulating Impacts of Ice Storms on Forest Ecosystems

Published on: June 30, 2020

相关概念视频

Global Climate Change

Global Climate Change

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.

Threats to Biodiversity

Threats to Biodiversity

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...

What is Climate?

What is Climate?

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.

Responses to Heat and Cold Stress

Responses to Heat and Cold Stress

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.

Adaptations that Reduce Water Loss

Adaptations that Reduce Water Loss

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.

Ecological Disturbance

Ecological Disturbance

An ecological disturbance is a temporary disruption in the environment resulting from abiotic, biotic, or anthropogenic factors, causing a pronounced change in an ecosystem. The impact of an ecological disturbance, which can depend on its intensity, frequency, and spatial distribution, plays a significant role in shaping the species diversity within the ecosystem.