相关实验视频

Updated: Jul 25, 2025

The Calibration and Use of Capacitance Sensors to Monitor Stem Water Content in Trees

The Calibration and Use of Capacitance Sensors to Monitor Stem Water Content in Trees

Published on: December 27, 2017

气候水的可用性改变了树木的功能多样性对欧洲森林土壤有机碳储存的影响

Richard Osei¹, Hugues Titeux¹, Miren Del Río²

¹UCLouvain - Université catholique de Louvain, Earth & Life Institute, Croix du Sud 2 Box L7.05.09, 1348 Louvain-La-Neuve, Belgium.

European journal of forest research

|June 26, 2023

概括

森林层的组成影响了土壤表层的碳储存,而气候则推动了土壤下层的碳. 种类混合对碳的影响因土壤深度和环境条件而异.

科学领域:

森林生态森林生态
土壤科学土壤科学
生物地质化学生物地质化学

背景情况:

土壤有机碳 (SOC) 储存受到森林群特征和环境因素的影响.
在土壤深度的SOC上,立场因素 (身份,多样性) 和环境条件之间的相互作用仍然不太清楚,特别是在物种混合方面.

研究的目的:

调查森林立体因素与环境因素对 SOC 在地表和地下储存的相对影响.
检查环境因素如何调节功能多样性对不同土壤深度SOC储存的影响.

主要方法:

对21个欧洲森林三胞胎进行的研究 (单一种植与混合种植).
评估功能性身份 (宽叶比例) 和功能多样性 (宽叶 × 针叶比例).
测量了地表 (0-10厘米) 和地底 (10-40厘米) 的碳储量,以及气候水的可用性,粘土+含量和氧酸盐可提取 (Al_ox).

主要成果:

功能性身份主要驱动了土壤表层的碳储存.
气候水的可用性是地下碳储存的主要驱动因素.
功能多样性对SOC的影响因土壤深度,环境因素 (水的可用性,粘土含量,Al_ox) 和它们的相互作用而有所不同.

结论:

森林层组成和环境因素对土壤地平线上的SOC储存有不同的控制.
功能多样性对SOC的影响取决于背景,随着环境梯度和土壤深度而变化,突显了森林碳动态的复杂性.

关键词:

情境依赖性影响是指情境依赖性的影响.森林生态系统服务森林生态系统服务功能多样性的功能多样性酸盐可提取的金属土壤有机碳土壤有机碳他们是三胞胎.

更多相关视频

BtM, a Low-cost Open-source Datalogger to Estimate the Water Content of Nonvascular Cryptogams

BtM, a Low-cost Open-source Datalogger to Estimate the Water Content of Nonvascular Cryptogams

Published on: March 25, 2019

JenaTron - An Experimental Approach to Study the Effects of Plant History and Soil History on Grassland Ecosystem Functioning

JenaTron - An Experimental Approach to Study the Effects of Plant History and Soil History on Grassland Ecosystem Functioning

Published on: March 21, 2025

相关概念视频

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.

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.

The Soil Ecosystem

The Soil Ecosystem

Plants obtain inorganic minerals and water from the soil, which acts as a natural medium for land plants. The composition and quality of soil depend not only on the chemical constituents but also on the presence of living organisms. In general, soils contain three major components:

Xylem and Transpiration-driven Transport of Resources

Xylem and Transpiration-driven Transport of Resources

The xylem of vascular plants distributes water and dissolved minerals that are taken up by the roots to the rest of the plant. The cells that transport xylem sap are dead upon maturity, and the movement of xylem sap is a passive process.

Responses to Drought and Flooding

Responses to Drought and Flooding

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.

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.