Article
Forestry
Siyeon Byeon, Kunhyo Kim, Jeonghyun Hong, Seohyun Kim, Sukyung Kim, Chanoh Park, Daun Ryu, Sim-Hee Han, Changyoung Oh, Hyun Seok Kim
Summary: In elevated CO2 conditions, the leaf nitrogen concentration of Fraxinus rhynchophylla seedlings was not reduced by nonstructural carbohydrate accumulation, suggesting a potential link with increased photosynthetic N-use efficiency. Contrary to expectations, leaf NSC decreased under elevated CO2, while stem nitrogen concentrations increased, indicating a complex response of different plant organs to elevated CO2 and nitrogen availability.
Article
Forestry
Taehyun Kim, Jungyoon Kim, Jeman Lee, Hyun Seok Kim, Juhan Park, Sangjun Im
Summary: This study estimated the water retention capacity of forest leaf litter through lysimeter measurements under field conditions. The results showed that Pinus koraiensis litter stored more water than Quercus acutissima litter during rainfall. The study demonstrated the importance of leaf litter in water balance and the reliability of lysimetry as a measurement method.
Article
Agronomy
Xianzhen Luo, Lingling Zhang, Yafeng Yi, Dazhi Wen
Summary: The study examines the effects of elevated CO2 and N deposition on leaf litter decomposition and nutrient release in a heavy-metal-contaminated environment. The results show that elevated CO2 and N addition offset the negative effects of Cd addition on litter decomposition and nutrient loss.
Article
Forestry
Ying Lu, Liudong Zhang, Kun Li, Ruiqiang Ni, Rongchu Han, Chuanrong Li, Caihong Zhang, Weixing Shen, Zhongjun Zhang
Summary: Microorganisms play a crucial role in litter decomposition in terrestrial ecosystems. The diversity and composition of bacterial communities are influenced by litter species and tissues, which are correlated with the initial chemical properties of the litter.
Article
Environmental Sciences
Mohamed Riadh Mahmoudi, Beya Bachtobji-Bouachir, Houcine Sebai, Mossadok Ben-Attia, Neziha Ghanem-Boughanmi
Summary: This study highlighted the importance of the shrub layer in Mediterranean forests, emphasizing the need to consider it in any disturbance assessment and management. Disturbance significantly reduced total litter fall in disturbed sites, with the increased shrub layer contribution not compensating for the decreased input by the tree layer. Leaf litter decomposition was negatively affected by disturbance, leading to differences in above ground soil organic matter and nutrient dynamics between disturbed and undisturbed sites.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Plant Sciences
James Bunce
Summary: The effects of CO2 concentration on plants vary among cultivars and environmental conditions. Some cultivars show increased leaf size when exposed to elevated CO2 concentration during darkness, unrelated to leaf water potential or turgor pressure.
Article
Geosciences, Multidisciplinary
Xuede Dong, Peng Gao, Rui Zhou, Cheng Li, Xingjian Dun, Xiang Niu
Summary: Microorganisms in the soil play a crucial role in the decomposition of litter. The study found that mixed forests had a higher litter decomposition rate than pure forests, with different dominant bacterial and fungal species. The research also showed that mixed forests have a more stable microbial alpha diversity index compared to pure forests.
Article
Environmental Sciences
Songze Wan, Shenglei Fu, Chenlu Zhang, Juan Liu, Yun Zhang, Rong Mao
Summary: The study found that subtropical plantations undergoing understory removal and litter addition have impacts on litter decomposition dynamics. Understory removal inhibited litter decomposition rates, while litter addition also slowed down decomposition rates, but they did not interact with each other when present simultaneously. Mixed leaf and twig litter had additive effects on litter decomposition rates.
LAND DEGRADATION & DEVELOPMENT
(2021)
Article
Environmental Sciences
Yuhai Yang, Honghua Zhou, Zhaoxia Ye, Chenggang Zhu
Summary: In this study, an equation was attempted to be established between leaf litter amount and relevant tree characteristics on an individual scale for Populus euphratica trees. Results showed no proper equation between leaf litter amount and tree height or diameter at breast height, with a great difference in leaf litter amount on an individual scale. The leaf litter mass changed over time, exhibiting three main phases in the incubation experiment.
Article
Forestry
Fran Lauriks, Roberto Luis Salomon, Linus De Roo, Kathy Steppe
Summary: Elevated atmospheric CO2 concentration stimulates leaf carbon assimilation, decreases stomatal conductance, and has no clear effect on leaf respiration. Seasonal dynamics significantly affect the magnitude of response to eCO2 at both leaf and whole-tree level.
Article
Environmental Sciences
Hui Liu, Jiazhen Zhang, Luying Zhang, Xi Zhang, Rui Yang
Summary: Recent studies have found that arbuscular mycorrhizal fungi (AMF) can accelerate the decomposition of leaf litters and alter the associated bacterial and fungal communities. This effect of AMF on decomposition is not influenced by the level of soil saline-alkali. AMF significantly increased the richness and diversity of bacterial and fungal communities.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Biodiversity Conservation
Wei Wang, Kai Hu, Ke Huang, Jianping Tao
Summary: The study found that fine roots penetrating the litter layer significantly promote the intensity of mechanical fragmentation by changing the morphology, structure, and physical properties of leaf litter, thereby improving the efficiency of nutrient release in the early decomposition process.
GLOBAL ECOLOGY AND CONSERVATION
(2021)
Article
Soil Science
Aogui Li, Yuexin Fan, Silu Chen, Haowei Song, Chengfang Lin, Yusheng Yang
Summary: Climate warming is expected to increase leaf litter decomposition rates, but the effect may not be uniform. This study found that soil warming had different effects on litter decomposition in a native forest and a plantation and that the impact varied over time.
SOIL BIOLOGY & BIOCHEMISTRY
(2022)
Article
Agronomy
Jinjie Fan, Xun Wu, Yangliu Yu, Qiang Zuo, Jianchu Shi, Moshe Halpern, Jiandong Sheng, Pingan Jiang, Alon Ben-Gal
Summary: Delineating root-water-uptake (RWU) under conditions with augmented CO2 concentrations is crucial for irrigation scheduling in response to climate change. The effects of increased CO2 concentration (e[CO2]) on RWU and the development of a RWU model were studied through two experiments, which demonstrated the stimulation of plant growth and the decrease in RWU activity under e[CO2]. The RWU model accurately simulated soil water transport and wheat transpiration under e[CO2].
AGRICULTURAL WATER MANAGEMENT
(2023)
Article
Forestry
Tae-Lim Kim, Hoyong Chung, Karpagam Veerappan, Wi Young Lee, Danbe Park, Hyemin Lim
Summary: The research investigated the effects of elevated atmospheric CO2 on the metabolism, growth, and transcriptome of poplar. Differences in gene expression were identified in poplar trees grown under different CO2 concentrations, providing valuable information for future gene discovery and tree improvement strategies in the face of increasing CO2 levels.
