滑坡对生命、基础设施和环境造成严重破坏,因此准确及时的制图对于灾害预防与应对至关重要。然而,传统深度学习模型在应用于不同传感器、区域或训练数据有限的情况下往往表现不佳。为应对这些挑战,我们提出一个涵盖传感器、标签和领域三个维度的分析框架,用于适应地理空间基础模型(GeoFMs),重点聚焦于Prithvi-EO-2.0在滑坡制图中的应用。通过一系列实验,我们发现该模型在性能上持续优于任务特定的卷积神经网络(U-Net、U-Net++)、视觉Transformer(Segformer、SwinV2-B)以及其他GeoFMs(TerraMind、SatMAE)。该模型基于全球预训练、自监督学习以及可适应的微调机制,在面对光谱变化时表现出鲁棒性,即使在标签数据稀缺条件下仍能保持较高精度,并在多种数据集和地理环境中展现出更可靠的泛化能力。与此同时,我们也指出了仍存在的挑战,如计算成本较高以及可用于滑坡研究的可复用AI就绪训练数据有限。总体而言,本研究将GeoFMs定位为实现更稳健、可扩展的滑坡风险减缓与环境监测方法的重要一步。
Landslides cause severe damage to lives, infrastructure, and the environment, making accurate and timely mapping essential for disaster preparedness and response. However, conventional deep learning models often struggle when applied across different sensors, regions, or under conditions of limited training data. To address these challenges, we present a three-axis analytical framework of sensor, label, and domain for adapting geospatial foundation models (GeoFMs), focusing on Prithvi-EO-2.0 for landslide mapping. Through a series of experiments, we show that it consistently outperforms task-specific CNNs (U-Net, U-Net++), vision transformers (Segformer, SwinV2-B), and other GeoFMs (TerraMind, SatMAE). The model, built on global pretraining, self-supervision, and adaptable fine-tuning, proved resilient to spectral variation, maintained accuracy under label scarcity, and generalized more reliably across diverse datasets and geographic settings. Alongside these strengths, we also highlight remaining challenges such as computational cost and the limited availability of reusable AI-ready training data for landslide research. Overall, our study positions GeoFMs as a step toward more robust and scalable approaches for landslide risk reduction and environmental monitoring.