Article
Ecology
Ifigenia Urbina, Oriol Grau, Jordi Sardans, Olga Margalef, Guillermo Peguero, Dolores Asensio, Joan LLusia, Roma Ogaya, Albert Gargallo-Garriga, Leandro Van Langenhove, Lore T. Verryckt, Elodie A. Courtois, Clement Stahl, Jennifer L. Soong, Jerome Chave, Bruno Herault, Ivan A. Janssens, Emma Sayer, Josep Penuelas
Summary: The study found that nutrient resorption plays a key role in maintaining efficient nutrient cycling in old-growth tropical forests on the Guiana Shield, with higher resorption efficiencies observed for phosphorus (P) and potassium (K). Nitrogen (N) and P resorptions were positively related to their foliar concentrations, while K resorption was higher in the wet season. Seasonality and biochemical limitation influenced nutrient resorption in leaves, while species-specific requirements obscured general tendencies.
ECOLOGY AND EVOLUTION
(2021)
Article
Forestry
Yue Zhang, Shichen Xiong, Chengming You, Sining Liu, Lixia Wang, Li Zhang, Han Li, Bo Tan, Yang Liu, Zhenfeng Xu
Summary: This study investigated the effects of nitrogen addition on foliar litter production and element return in a subtropical forest. The results showed that nitrogen addition increased foliar litter production, carbon, and nitrogen return, but had no effect on phosphorous return.
JOURNAL OF FORESTRY RESEARCH
(2023)
Article
Forestry
A. Fuertes, N. Oliveira, C. Perez-Cruzado, I Canellas, H. Sixto, R. Rodriguez-Soalleiro
Summary: This study aims to adapt the foliar variables of the process-based model 3-PG to optimize yield predictions of poplar plantations and identify the foliar parameters that respond significantly to restrictive irrigation. The results will improve the estimation ability of the 3-PG model for variables such as Net Primary Productivity, leaf litterfall, and the soil-plant nutrient cycle.
Article
Agronomy
Xiaowei Liu, Youqi Wang, Wenhui Fu, Zhiyou Yuan, Qiang Yu, Changhui Peng, Sally E. Koerner, Liang Guo
Summary: Through an eight-year field survey in a semi-arid grassland in the Loess Plateau, China, this study found that climatic factors had a stronger impact on foliar nutrient resorption efficiency (NuRE) than soil nutrients. Climatic factors influenced NuRE by regulating the nitrogen-phosphorus ratio in the leaves, and this effect was more significant in graminoids (the dominant group). This suggests that graminoids have more flexibility and positive responses to climatic factors, allowing them to dominate in this grassland.
Review
Biochemistry & Molecular Biology
Marc Estiarte, Matteo Campioli, Maria Mayol, Josep Penuelas
Summary: Foliar nutrient resorption is crucial for ecosystem functioning and plant nutrient economy. It is regulated by cell biochemistry, physiology, and subcellular anatomy, which influence the efficiency and limits of nutrient resorption.
PLANT COMMUNICATIONS
(2023)
Article
Forestry
Kara E. Gonzales, Ruth D. Yanai, Timothy J. Fahey, Melany C. Fisk
Summary: Nitrogen and phosphorus are the most limiting nutrients for plants, and resorption is an important mechanism for nutrient conservation. This study focused on the foliar nutrient concentrations, ratios, and resorption in three northern hardwood species, and found that the addition of phosphorus reduced its resorption. Nitrogen to phosphorus ratios indicated phosphorus limitation, especially in plots with added phosphorus. Additionally, the efficiency of nutrient resorption varied among sites and species.
FOREST ECOLOGY AND MANAGEMENT
(2023)
Article
Forestry
Xinli Chen, Han Y. H. Chen
Summary: Our study found that leaf nitrogen resorption efficiency remained constant, while phosphorus and potassium resorption efficiency decreased with overstory succession. Additionally, we observed variations in leaf phosphorus levels between younger and older mixed stands compared to monocultures in Populus tremuloides.
FOREST ECOLOGY AND MANAGEMENT
(2022)
Article
Plant Sciences
Ziyang Peng, Yuntao Wu, Lulu Guo, Lu Yang, Bin Wang, Xin Wang, Weixing Liu, Yanjun Su, Jin Wu, Lingli Liu
Summary: Understanding how plants adapt to spatially heterogeneous phosphorus (P) supply is crucial for studying the impact of environmental changes on ecosystem productivity. The relative P limitation to plants was found to be higher in tropical forests than in temperate forests, but varied among species and within sites. Ecosystems develop a coupled aboveground-belowground strategy to maintain P supply and N : P stoichiometric balance under P-limitation.
Article
Multidisciplinary Sciences
Daniel S. Hong, Kara E. Gonzales, Timothy J. Fahey, Ruth D. Yanai
Summary: Foliar chemistry is useful for diagnosing soil nutrient availability and plant nutrient limitation. The effects of nitrogen (N) and phosphorus (P) addition on foliar nutrients were studied in northern hardwood forests. The results showed that foliar N increased with N addition, while foliar P increased with P addition. However, when both nutrients were added together, foliar P was lower than predicted, likely due to the greater use of P for growth facilitated by N addition. The study also found that tree species differed in foliar nutrient concentrations and response to nutrient addition.
