Climate Factors Affect Above-Belowground Biomass Allocation in Broad-Leaved and Coniferous Forests by Regulating Soil Nutrients

Overview

Journal Plants (Basel)

Date 2023 Dec 9

PMID 38068563

Authors

Xing Zhang

Yongzhi Zhou

Yuhui Ji

Mengyao Yu

Xinyi Li

Jie Duan

Yun Wang

Jie Gao

Xiali Guo

Affiliations

Soon will be listed here.

Abstract

The allocation of plant biomass above and below ground reflects their strategic resource utilization, crucial for understanding terrestrial carbon flux dynamics. In our comprehensive study, we analyzed biomass distribution patterns in 580 broadleaved and 345 coniferous forests across China from 2005 to 2020, aiming to discern spatial patterns and key drivers of belowground biomass proportion (BGBP) in these ecosystems. Our research revealed a consistent trend: BGBP decreases from northwest to southeast in both forest types. Importantly, coniferous forests exhibited significantly higher BGBP compared to broadleaved forests ( < 0.001). While precipitation and soil nutrients primarily influenced biomass allocation in broadleaved forests, temperature and soil composition played a pivotal role in coniferous forests. Surprisingly, leaf traits had a negligible impact on BGBP ( > 0.05). Climatic factors, such as temperature and rainfall, influenced biomass partitioning in both strata by altering soil nutrients, particularly soil pH. These findings provide valuable insights into understanding carbon sequestration dynamics in forest ecosystems and improving predictions of the future trajectory of this critical carbon cycle component.

Citing Articles

Plant Biomass Allocation-Regulated Nitrogen and Phosphorus Addition Effects on Ecosystem Carbon Fluxes of a Lucerne ( ssp. ) Plantation in the Loess Plateau.

Zhai P, Cheng R, Gong Z, Huang J, Yang X, Zhang X Plants (Basel). 2025; 14(4).

PMID: 40006820 PMC: 11859002. DOI: 10.3390/plants14040561.

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