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A CO2 Concentration Gradient Facility for Testing CO2 Enrichment and Soil Effects on Grassland Ecosystem Function
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Nitrogen enhancement amplifies the precipitation-driven productivity allocation pattern in temperate and alpine

Xiaoxiao Han1, Qun Gang2, Qianguang Liu3

  • 1Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China; Qianyanzhou Ecological Research Station, Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China.

The Science of the Total Environment
|October 1, 2025
PubMed
Summary

Grassland carbon allocation shifts with changing precipitation, with more carbon going to aboveground biomass and less to roots and hyphae. Nitrogen addition amplifies these precipitation effects, impacting ecosystem stability.

Keywords:
C allocationHyphaeNitrogen depositionPrecipitation gradientRoot

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