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Updated: May 27, 2026

05:07
Assessing the Particulate Matter Removal Abilities of Tree Leaves
Published on: October 7, 2018
[Nutrient dynamics in Quercus mongolica leaves at different canopy positions]
Xu-bing Cheng1, Shi-jie Han, Zhong-hui Zhang
1Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China. chengxubing1234@163.com
Ying Yong Sheng Tai Xue Bao = the Journal of Applied Ecology
|December 1, 2011
Summary
Mongolian oak (Quercus mongolica) leaves show varied nutrient content and resorption efficiency based on canopy position. Phosphorus resorption and use efficiency were higher in the upper canopy, impacting forest nutrient cycling.
Area of Science:
- Forest Ecology
- Plant Physiology
- Biogeochemistry
Context:
- Coniferous-broadleaved mixed forests are vital ecosystems.
- Quercus mongolica is a dominant species in the Changbai Mountains.
- Understanding leaf nutrient dynamics is crucial for ecosystem health.
Purpose:
- To investigate leaf dry mass per unit area (LMA), carbon (C), nitrogen (N), and phosphorus (P) content variations.
- To analyze leaf N and P resorption and use efficiencies at different canopy positions during the growing season.
- To assess the influence of canopy position on these leaf traits.
Summary:
- Leaf LMA and C content fluctuated monthly in both upper and lower canopies.
- Leaf N and P content per unit area followed similar trends to content per unit mass.
- Leaf N resorption efficiency and use efficiency were less affected by canopy position, while P resorption and use efficiency were higher in the upper canopy.
Impact:
- Quercus mongolica exhibits higher P resorption and use efficiency in upper canopy positions.
- These efficiencies suggest enhanced nutrient cycling capabilities for Q. mongolica.
- The species' competitive ability may be crucial for nutrient cycling under future climate change scenarios.
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