ArticleTree physiology2018
Liana and tree below-ground water competition-evidence for water resource partitioning during the dry season.
Article in Tree physiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed.
- Tropical forest lianas have greater non-structural carbohydrate concentrations in the stem xylem than trees.Tree physiology · 2024Article
- Towards a liana plant functional type for vegetation models.Ecological modelling · 2024Article
- Linking physiology, epidemiology, and demography: Understanding how lianas outcompete trees in a changing world.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Lianas in tropical dry seasonal forests have a high hydraulic efficiency but not always a higher embolism resistance than lianas in rainforests.Annals of botany · 2024Article
- The competitive relationship of scrub plants for water use in the subalpine zone of the Qilian Mountains in China.Environmental science and pollution research international · 2024Article
- Competition for water and rapid exclusion of an island endemic by a pantropical species in a tropical climate.Oecologia · 2023Article
- Article
- Vegetative phenologies of lianas and trees in two Neotropical forests with contrasting rainfall regimes.The New phytologist · 2022Article
- Unraveling the relative role of light and water competition between lianas and trees in tropical forests: A vegetation model analysis.The Journal of ecology · 2021Article
- Stem water cryogenic extraction biases estimation in deuterium isotope composition of plant source water.Proceedings of the National Academy of Sciences of the United States of America · 2020Article
- Vegetation state changes in the course of shrub encroachment in an African savanna since about 1850 CE and their potential drivers.Ecology and evolution · 2020Article
- Biomass and nitrogen distribution ratios reveal a reduced root investment in temperate lianas vs. self-supporting plants.Annals of botany · 2019Article
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Authors and funding
9 authors.
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Abstract
To date, reasons for the increase in liana abundance and biomass in the Neotropics are still unclear. One proposed hypothesis suggests that lianas, in comparison with trees, are more adaptable to drought conditions. Moreover, previous studies have assumed that lianas have a deeper root system, which provides access to deeper soil layers, thereby making them less susceptible to drought stress. The dual stable water isotope approach (δ18O and δ2H) enables below-ground vegetation competition for water to be studied. Based on the occurrence of a natural gradient in soil water isotopic signatures, with enriched signatures in shallow soil relative to deep soil, the origin of vegetation water sources can be derived. Our study was performed on canopy trees and lianas reaching canopy level in tropical forests of French Guiana. Our results show liana xylem water isotopic signatures to be enriched in heavy isotopes in comparison with those from trees, indicating differences in water source depths and a more superficial root activity for lianas during the dry season. This enables them to efficiently capture dry season precipitation. Our study does not support the liana deep root water extraction hypothesis. Additionally, we provide new insights into water competition between tropical canopy lianas and trees. Results suggest that this competition is mitigated during the dry season due to water resource partitioning.
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