Growing a grass and forb mixture in drying soil – root systems do not show spatial niche complementarity DOI
Palash Mandal, Jochem B. Evers,

P.E.L. van der Putten

et al.

Plant and Soil, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 26, 2024

Language: Английский

A Continuous Root Water Uptake Isotope Mixing Model DOI Creative Commons

Han Fu,

Eric J. Neil, Juxin Liu

et al.

Water Resources Research, Journal Year: 2024, Volume and Issue: 60(8)

Published: Aug. 1, 2024

Abstract The depth‐wise distribution of root water uptake is typically inferred through linear mixing models that utilize knowledge stable isotopes in soil and plants. However, these existing often represent the profile discrete segments, potentially introducing significant uncertainty bias into results. In this study, we introduced a novel model combines Bayesian framework with continuous pattern, named CrisPy. To evaluate performance CrisPy, conducted virtual field‐based tests under several types prior information. CrisPy showed accurate robust reconstruction true various information settings test. By contrast, model, MixSIAR was greatly influenced by deviated from profile. mean squared error proportions ranged 3.6% to 7.4%, while exhibited values 6.3%–15.2%. Furthermore, posterior predictive checking indicated effectively reconstructed standard deviations plant isotopic compositions both tests. MixSIAR, however, underestimated overestimated deviation compositions. These findings collectively support enhanced accuracy, greater robustness, reduced comparison MixSIAR. Therefore, provides powerful tool for partitioning sources.

Language: Английский

Citations

3
Water Niche Characteristics of Subalpine Shrub in Eastern Qilian Mountains, China DOI

Li-Fang Chou,

Wenxiong Jia, Yue Zhang

et al.

Ecohydrology, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 24, 2024

ABSTRACT The investigation and research of plant niche provide new ideas for understanding the extent resource utilization by plants coexistence relationship among species. Taking subalpine shrub in eastern Qilian Mountains as object, contribution rate each potential water source to was estimated using Bayesian mixed modelling (MixSIAR), spatial temporal characteristics their were analysed quantitatively Levins' breadth index Pianka's overlap index. results showed that on semi‐shady slope exhibited larger compared those semi‐sunny slope, which indicated had strong adaptability environment, but competition them more intense. Furthermore, decreased with promotion growth stage, related changes precipitation physiological during cycle. Among studied species, Potentilla fruticosa Linn., Salix oritrepha Schneid., cupularis Rehd. Rhododendron thymifolium Maxim. broader different habitats, indicating superior environment. Despite high resources intense, there no absolute positive correlation between overlap. can a theoretical reference rational allocation species vegetation restoration Mountain National Park.

Language: Английский

Citations

2
Individual Versus Combined Effects of Warming, Elevated CO2 and Drought on Grassland Water Uptake and Fine Root Traits DOI Creative Commons
Maud Tissink, Jesse Radolinski, David Reinthaler

et al.

Plant Cell & Environment, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 18, 2024

Increasing warming, atmospheric CO

Language: Английский

Citations

2
Key microbial taxa play essential roles in maintaining soil muti-nutrient cycling following an extreme drought event in ecological buffer zones along the Yangtze River DOI Creative Commons
Jie Fang, Zihao Liu, Yongcui Deng

et al.

Frontiers in Plant Science, Journal Year: 2024, Volume and Issue: 15

Published: Sept. 4, 2024

Climatic extremes, especially extreme droughts, are occurring more frequently and profoundly impacting biogeochemical processes. However, the relative importance of microbial communities on soil nutrient cycling community maintenance under natural drought events remains elusive. During a record-breaking in Yangtze River Basin (YRB) summer 2022, we collected ambient soils drought-affected bare vegetated ecological buffer zones from two sites with similar vegetation characteristics along YRB, examined contribution bacterial supporting multi-nutrient index (MNCI) involving carbon-, nitrate- phosphorus-cycling their associations network. Extreme decreased (

Language: Английский

Citations

0
Growing a grass and forb mixture in drying soil – root systems do not show spatial niche complementarity DOI
Palash Mandal, Jochem B. Evers,

P.E.L. van der Putten

et al.

Plant and Soil, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 26, 2024

Language: Английский

Citations

0