What does this research mean for the field?

Landscape ecological risk in topographically constrained river-valley basins is primarily driven by natural factors such as slope, NDVI, and elevation, which exert strong nonlinear threshold effects on risk levels. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

This research aims to understand the nonlinear driving mechanisms of landscape ecological risk (LER) in a constrained topographic river-valley basin.

August 13, 2026LandOpen Access

Landscape Ecological Risk Evolution and Its Nonlinear Driving Mechanisms in a Topographically Constrained River-Valley Basin: A Case Study of the Taiyuan Section of the Fen River Basin

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Implication

Randomized trial evaluates landscape ecological risk in a river-valley basin, suggesting improved ecological management strategies.

Key Points

This research aims to understand the nonlinear driving mechanisms of landscape ecological risk (LER) in a constrained topographic river-valley basin.
Constructed an LER index using land-use data from 2014, 2019, and 2024.
Performed landscape metrics and spatial autocorrelation analyses to study spatiotemporal evolution of LER.
Utilized a LightGBM-SHAP model with spatial block cross-validation to identify influences of various drivers.
LER fluctuated, increasing from 2014 to 2019 and decreasing from 2019 to 2024, with 71% of the area in low-risk zones.
Natural factors like slope, NDVI, elevation, and GDP were key drivers, with natural factors having a stronger influence.
Notable nonlinear relationships were found: slope increased risk at certain angles, NDVI showed an inverted U-shaped relationship, and elevation shifted from positive to negative contributions near 1200 m.

Cite This Study

A 2026 study studied this question.

synapsesocial.com/papers/6a7d75d82b0e0cff3f63ec29 https://doi.org/10.3390/land15081438

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Landscape Ecological Risk Evolution and Its Nonlinear Driving Mechanisms in a Topographically Constrained River-Valley Basin: A Case Study of the Taiyuan Section of the Fen River Basin

Discussion

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Implication

Key Points

Cite This Study

Landscape Ecological Risk Evolution and Its Nonlinear Driving Mechanisms in a Topographically Constrained River-Valley Basin: A Case Study of the Taiyuan Section of the Fen River Basin

Discussion

Member takes

Implication

Key Points

Cite This Study

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