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| http://dx.doi.org/10.3399/bjgp10X482211 | DOI Listing |
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Enhancing the water use efficiency model predictions for Platycladus orientalis and Quercus variabilis: Integrating the dynamics of carbon dioxide concentration and soil water availability.
Sci Total Environ
January 2025
Institute of Forestry and Pomology, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100093, China; Beijing Yanshan Forest Ecosystem Positioning Observation and Research Station, Beijing 100093, China. Electronic address:
Water use efficiency (WUE) is a tracer for plants on the trade-off exchange of water and carbon dioxide between terrestrial ecosystems and the atmosphere; therefore, a dynamic investigation of WUE and its driving factors will be of great significance to optimize water and carbon fitness and predict the plants' response to climate change. In our study, a modified water use efficiency model was proposed to improve the quantification of carbon and water processes by adding a photosynthesis-g simulation dependent on CO concentration and soil moisture to the photosynthetic transpiration model (noted as SMPTSB model). Actual measured water use efficiencies were respectively obtained by the gas exchange measurements (WUE) and the δC that defined as the carbon-heavy isotope of the water-soluble compound in leaves (WUE) of three-year tree saplings of Platycladus orientalis (L.
View Article and Find Full Text PDFResearch on the Molecular Mechanisms and Key Gene Discovery in Root Pruning Based on Transcriptomics and Hormone Profiling.
Int J Mol Sci
October 2024
College of Forestry, Henan Agricultural University, Zhengzhou 450002, China.
Article Synopsis
- The study focuses on a broadleaf species used in afforestation, which struggles with transplantation due to its slow above-ground growth and rapid taproot development, leading to lower survival rates.
- Researchers conducted root pruning by removing one-third of the roots, which was found to enhance lateral root growth compared to unpruned seedlings.
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Spatial structure and individual competition characteristics of secondary Mongolian oak mature forests in the mountainous area of eastern Liaoning Province, China.
Ying Yong Sheng Tai Xue Bao
September 2024
Liaoning Academy of Agricultural Sciences, Shenyang 110161, China.
Article Synopsis
- The structure of mature forests is shaped by long-term ecological processes, leading to diverse plant species and vital ecological functions.
- A study of Mongolian oak forests in eastern Liaoning discovered specific patterns in tree size and distribution, highlighting dominant species across different growth layers.
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Decadal Changes in Population Structures of Rare Oak Species .
Ecol Evol
October 2024
Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems College of the Environment & Ecology, Xiamen University Xiamen China.
, a rare and endangered endemic tree species, is found exclusively in subtropical regions of China. Understanding the population structure and temporal dynamics of is pivotal for effective conservation and restoration of its populations and associated ecosystems. However, large knowledge gaps remain about its population structure and temporal change and its key demographic rates across size classes.
View Article and Find Full Text PDFSoil moisture and water redistribution patterns in white oak (Quercus alba) saplings and trees in fragmented urban woodlands.
Environ Res
December 2024
Chicago Botanic Garden, 1000 Lake Cook Rd, Glencoe, IL, 60022, USA; Graduate Program in Plant Biology and Conservation, Northwestern University, Sheridan Rd, Evanston, IL, USA. Electronic address:
In the midwestern United States, models predict extended summer heatwaves and increasingly frequent and prolonged drought conditions. In the Chicago region, the potential for large-scale mortality of white oak trees (Quercus alba) coupled with the ongoing decline of white oak sapling recruitment are major concerns for researchers and practitioners. In this study, we determined the sources of water used by mature white oak trees and saplings in three qualitatively different sites within a remnant oak forest in Chicago during the 2021 drought.
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