Publications

Assessing soils over large areas like Brazil faces challenges due to limited laboratory infrastructure, high costs, and environmental concerns linked to excessive chemical use. Reflectance spectroscopy and cloud computing offer quick, scalable, and environmentally friendly alternatives. This study reviews the Brazilian Soil Spectral Service (BraSpecS), a cloud-based hyperspectral platform designed to predict soil attributes through...

Accurate, privacy-respecting soil information is essential for site-specific nutrient management and carbon accounting, yet the cost of laboratory analyses limits many farms to relatively sparse sampling grids. We propose a collaborative framework that couples a national Sentinel-2 bare-soil composite with FL to produce high-resolution clay and soil organic carbon (SOC) maps while keeping all local...

Soil spectroscopy is a powerful technique for soil monitoring. Hundreds of soil spectral datasets, both open-access and private, are used for various applications, despite potential errors. This study presents a filtering protocol to enhance the quality of soil spectral datasets from laboratory and satellite sources, here termed the Spectral Quality Protocol (SQuaP). At the beginning,...

The advent of artificial intelligence (AI) and machine learning has permeated every aspect of our lives. Water resource management is becoming increasingly important due to the impacts of climate change and human activities. This publication provides examples of how AI can potentially improve the forecasting of water resource variables at both the field and regional...

Soil Organic Carbon (SOC) stocks in croplands play a key role for climate change mitigation and soil sustainability, with proper management techniques enhancing carbon storage to support these goals. This study focuses on the development of a hybrid carbon modeling approach for the simulation of topsoil SOC stocks across the entire agricultural area of Lithuania....

The variability of soil detachment rate (Dr) with rill length is essential to understand the complex process of rill erosion. Moreover, an important variable of rill erosion, such as the ‘flow sediment deficit’ (FSD)–the difference in Dr between the two extreme points of a rill–has been scarcely investigated. Soil disturbances, such as fire and deforestation,...

In arid and semi-arid regions, significant evaporation intensifies water scarcities and soil salinization, imposing severe challenges to agricultural productivity and economic advancement. This study quantitatively assesses the impact of varying soil salinity levels (0 to 1 wt%) and their distribution within the soil column on water, heat, and salt transport dynamics during evaporation. With a series...

Soil has garnered global attention for its role in food security and climate change. Fine-scale soil-mapping techniques are urgently needed to support food, water, and biodiversity services. A global soil dataset integrated into an Earth observation system and supported by cloud computing enabled the development of the first global soil grid of six key properties...

Very few studies have explored the effectiveness of polyacrylamide (PAM) application on soil in mitigating rill erosion, especially in deforested environments. This study has measured the soil detachment capacity (Dc) on samples of deforested soil (untreated or treated with PAM). Dc has been estimated by flume experiments under three bed slopes (6.9%, 17.2%, and 18.2%)...

GaiaBot is an AI-driven geospatial platform designed to simplify access to complex soil data for non-expert users, such as farmers and policymakers. Leveraging Earth observation data and global soil models, GaiaBot provides actionable insights into soil properties and field management through an intuitive chat-based interface. The system integrates advanced natural language processing with dynamic geospatial...