Functional Segregation of Resource Utilization Strategies between Invasive and Native Plants and Invasion Mechanisms in the Water Level Fluctuation Zone: A Case Study of Pengxi River in Three Gorges Reservoir, China DOI Open Access

Lideng Cheng,

Xingzhong Yuan,

Kuo Sun

et al.

Forests, Journal Year: 2024, Volume and Issue: 15(6), P. 959 - 959

Published: May 30, 2024

The ecosystem of the water level fluctuation (WLF) zone Three Gorges Reservoir (TGR) is highly vulnerable and sensitive due to its unique cyclical flooding drought conditions. ecological impact biological invasion in this area particularly severe, making it crucial study differences resource utilization strategies between invasive plants (IPs) native (NPs) using functional traits explore mechanisms invasion. We selected WLF Pengxi River TGR conducted a multi-scale along elevation gradient. results reveal that at regional scale, IPs have larger height specific leaf area, smaller tissue density, root length compared NPs, showing preference for enhancing aboveground acquisition over defense capabilities. They allocate more construction resources their roots withstand environmental pressures, which may be key successful intrusion, highlighting role niche differentiation. On community H SLA NPs are positively correlated with elevation, while LTD shows negative correlation. At elevations 175 m below, IP NP exhibit convergence, above m, divergence was observed. This indicates although different invasion, filtering from periodic floods pressures play significant assembly zone, allowing integrate into habitats similar characteristics already inhabited by establish own communities.

Language: Английский

UAV-based modelling of vegetation recovery under extreme habitat stresses in the water level fluctuation zone of the Three Gorges Reservoir, China DOI

J. Prakasha Rao,

Qiang Tang,

Dingqi Duan

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 934, P. 173185 - 173185

Published: May 12, 2024

Language: Английский

Citations

4
Broad‐Scale Meta‐Analysis of Drivers Mediating Adverse Impacts of Flow Regulation on Riparian Vegetation DOI Open Access
Xiaolei Su, María Dolores Bejarano, Roland Jansson

et al.

Global Change Biology, Journal Year: 2025, Volume and Issue: 31(2)

Published: Feb. 1, 2025

ABSTRACT Over two‐thirds of global rivers are subjected to flow regulation. Although it is widely recognized that regulation can adversely affect riparian vegetation—a critical component river ecosystems—the specific roles various drivers remain poorly understood. To address this gap, we conducted a broad‐scale meta‐analysis, aiming elucidate how different factors mediate the adverse impacts on vegetation. This meta‐analysis encompassed 59 papers, spanning 278 dams constructed 146 rivers. We extracted data four key indices vegetation: species richness and abundance all species, those exclusively for non‐native species. Indices were compared between regulated free‐flowing or pre‐damming quantify impact Our revealed moderate but significant reduction in under regulation, coupled with strong increase Riparian vegetation arid continental climate regions experienced stronger negative than tropical temperate climates. Furthermore, effects more pronounced downstream upstream. Considering region, study identity, relative position dam as random variables, became evident years since emerged most important factor influencing richness. time, gradually recovered from initially low levels. However, recovery was slowed by increasing intensity (percentage annual runoff stored). Additionally, larger support management, recommend prioritizing protection climates, emphasis areas dams, limiting intensity, particularly rivers, monitoring prevent disproportionate spread.

Language: Английский

Citations

0
Flooding drives plant diversity–biomass relationships in riparian zones of the Three Gorges Reservoir Area DOI
Jie Zheng, Songlin Zhang,

Dongdong Ding

et al.

Environmental Research, Journal Year: 2025, Volume and Issue: unknown, P. 121101 - 121101

Published: Feb. 1, 2025

Language: Английский

Citations

0
Flooding and land use drive variation in phylogenetic structure and taxonomic diversity of plant communities in urban riparian zones of a regulated river DOI
Nannan Du, Juanjuan Zhao,

Kunrong Qin

et al.

Urban forestry & urban greening, Journal Year: 2025, Volume and Issue: 107, P. 128741 - 128741

Published: Feb. 27, 2025

Language: Английский

Citations

0
A guild‐based framework for restoring plant diversity in reservoir shorelines through active plant introduction DOI Open Access
Fu Cai,

Rongyan Qian,

Roland Jansson

et al.

Journal of Applied Ecology, Journal Year: 2025, Volume and Issue: unknown

Published: March 19, 2025

Abstract Reservoir shorelines of regulated rivers, created by over 2.8 million dams worldwide, have experienced substantial biodiversity loss, particularly in plant communities. While actively introducing local riparian plants is a common restoration strategy, existing approaches often lack applicability and transferability across river basins. To address this, we propose guild‐based framework that classifies species used for into guilds based on shared functional traits adaptive strategies. This approach allows evaluating outcomes along environmental gradients, optimizing design. We tested this the Three Gorges (TGR), characterized steep gradients. Plant were identified traits, focusing hydrological geomorphological associations. The effectiveness guild introductions was assessed gradients submergence intensity, topography substrate properties comparing to those spontaneous colonization. Results showed under intermediate high active introduction colonization yielded similar outcomes, with short‐clonal flood‐tolerant herbs naturally dominating. At low woody increased diversity, whereas tall‐clonal reduced diversity due competitive exclusion. Actively introduced did not suppress invasive species. Unexpectedly, associated presence. Synthesis applications . Our study validates as an effective shoreline vegetation rivers. show identity intensity jointly shape offering insights strategies TGR reservoirs upper Yangtze River. Furthermore, enhances practices functionally driven selection

Language: Английский

Citations

0
Plant functional diversity as an important mediator of invasive effects on productivity in riparian grasslands DOI
Jie Zheng, Changxiao Li

Biological Invasions, Journal Year: 2025, Volume and Issue: 27(5)

Published: May 1, 2025

Language: Английский

Citations

0
Functional Segregation of Resource Utilization Strategies between Invasive and Native Plants and Invasion Mechanisms in the Water Level Fluctuation Zone: A Case Study of Pengxi River in Three Gorges Reservoir, China DOI Open Access

Lideng Cheng,

Xingzhong Yuan,

Kuo Sun

et al.

Forests, Journal Year: 2024, Volume and Issue: 15(6), P. 959 - 959

Published: May 30, 2024

The ecosystem of the water level fluctuation (WLF) zone Three Gorges Reservoir (TGR) is highly vulnerable and sensitive due to its unique cyclical flooding drought conditions. ecological impact biological invasion in this area particularly severe, making it crucial study differences resource utilization strategies between invasive plants (IPs) native (NPs) using functional traits explore mechanisms invasion. We selected WLF Pengxi River TGR conducted a multi-scale along elevation gradient. results reveal that at regional scale, IPs have larger height specific leaf area, smaller tissue density, root length compared NPs, showing preference for enhancing aboveground acquisition over defense capabilities. They allocate more construction resources their roots withstand environmental pressures, which may be key successful intrusion, highlighting role niche differentiation. On community H SLA NPs are positively correlated with elevation, while LTD shows negative correlation. At elevations 175 m below, IP NP exhibit convergence, above m, divergence was observed. This indicates although different invasion, filtering from periodic floods pressures play significant assembly zone, allowing integrate into habitats similar characteristics already inhabited by establish own communities.

Language: Английский

Citations

1