2026-04-23 中国科学院（CAS）
＜関連情報＞
- https://english.cas.cn/newsroom/research-news/202604/t20260420_1157533.shtml
- https://onlinelibrary.wiley.com/doi/10.1111/gcb.70827
地球規模のリン富栄養化が陸上のリン循環を再構築する Global Phosphorus Enrichment Reshapes Terrestrial Phosphorus Cycling
Zixin Chen, Kai Dong, Julian Helfenstein, Dafeng Hui, Constantin M. Zohner, Frank Hagedorn, Manuel Delgado-Baquerizo, Adam R. Martin, Jiguang Feng, Nan Yang, …
Global Change Biology Published: 01 April 2026
DOI:https://doi.org/10.1111/gcb.70827
ABSTRACT
Anthropogenic phosphorus (P) inputs are rapidly altering terrestrial P cycling through plant – soil – microbial interactions; however, global patterns and underlying mechanisms driving these changes remain poorly understood. By performing a global meta-analysis of 1315 observations from 176 studies across diverse natural terrestrial ecosystems, we found that P addition increased P concentrations in foliage, stems, roots, and litter by 62%, 114%, 100% and 63%, respectively. Soil total P, plant-available P, and microbial P concentrations rose by 43%, 221%, and 70%, while leaf P-resorption efficiency and soil phosphatase activity declined by 23% and 15%, respectively. Stem P and soil phosphatase activity exhibited consistent trends across tropical, temperate, and boreal zones, suggesting climate-specific P acquisition strategies. In addition, foliar P responses diverged among ecosystem and plant functional types. These responses were primarily regulated by background soil total P concentration, precipitation, soil pH, and P addition duration and rate. Our findings provide critical insights into the potential consequences of increasing anthropogenic P inputs in natural terrestrial ecosystems, improving our understanding of nutrient cycling and informing future ecosystem management under ongoing global change.
