Kaiyu Guan
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View article: Land conversion to energy crops for sustainable aviation fuel production reduces greenhouse gas emissions in the United States
Land conversion to energy crops for sustainable aviation fuel production reduces greenhouse gas emissions in the United States Open
Energy crops will be critical for scaling up production of Sustainable Aviation Fuel in the United States and reducing greenhouse gas emissions. Here we examine the economic incentives for the extent and type of land conversion needed to s…
View article: Soil oxygen dynamics: a key mediator of tile drainage impacts on coupled hydrological, biogeochemical, and crop systems
Soil oxygen dynamics: a key mediator of tile drainage impacts on coupled hydrological, biogeochemical, and crop systems Open
Tile drainage removes excess water and is an essential, widely adopted management practice to enhance crop productivity in the US Midwest and throughout the world. Tile drainage has been shown to significantly change hydrological and bioge…
View article: Industrial Design-Driven Exploration of the Impact Mechnism of Fire Evacuation Efficiency in High-Rise Buildings
Industrial Design-Driven Exploration of the Impact Mechnism of Fire Evacuation Efficiency in High-Rise Buildings Open
This study constructs a comprehensive analytical framework for fire evacuation efficiency in high-rise buildings based on risk management theory, environment–behavior relationship theory, and stress-cognition theory. Through a systematic l…
View article: Designing a nitrogen-efficient cold-tolerant maize for modern agricultural systems
Designing a nitrogen-efficient cold-tolerant maize for modern agricultural systems Open
Maize (Zea mays L.) is the world's most productive grain crop and a cornerstone of global food supply. However, in temperate agricultural systems, maize exhibits 2 key anomalies. First, as a tropical species, maize cannot be planted in the…
View article: Comprehensive Evaluation of Agricultural Residues Corn Stover Silage
Comprehensive Evaluation of Agricultural Residues Corn Stover Silage Open
As a typical agricultural waste, the resource utilization of corn stover (CS) plays a crucial role in the coordinated optimization of ecological and economic benefits. In order to enhance the utilization of CS resources, Lentilactobacillus…
View article: Environmental and societal costs of maize production decrease by addressing the uncertainty in nitrogen rate recommendations
Environmental and societal costs of maize production decrease by addressing the uncertainty in nitrogen rate recommendations Open
Finding optimum nitrogen (N) rates for maize is essential to balance crop productivity and farmers’ profit while reducing negative environmental and social consequences associated with N fertilization. However, the determination of optimum…
View article: Evaluation of multimodel averaging approaches for ensembling evapotranspiration and yield simulations from maize models
Evaluation of multimodel averaging approaches for ensembling evapotranspiration and yield simulations from maize models Open
International audience
View article: Embracing large language model (LLM) technologies in hydrology research
Embracing large language model (LLM) technologies in hydrology research Open
The growing complexity of hydrological systems necessitates innovative approaches to data management, knowledge management, and model development. Large language models (LLMs) have great potential to accelerate hydrological research by uni…
View article: The Global Spectra-Trait Initiative: A database of paired leaf spectroscopy and functional traits associated with leaf photosynthetic capacity
The Global Spectra-Trait Initiative: A database of paired leaf spectroscopy and functional traits associated with leaf photosynthetic capacity Open
Accurate assessment of leaf functional traits is crucial for a diverse range of applications from crop phenotyping to parameterizing global climate models. Leaf reflectance spectroscopy offers a promising avenue to advance ecological and o…
View article: A Unified Framework to Reconcile Different Approaches of Modeling Transpiration Response to Water Stress: Plant Hydraulics, Supply Demand Balance, and Empirical Soil Water Stress Function
A Unified Framework to Reconcile Different Approaches of Modeling Transpiration Response to Water Stress: Plant Hydraulics, Supply Demand Balance, and Empirical Soil Water Stress Function Open
Plant responses to water stress is a major uncertainty to predicting terrestrial ecosystem sensitivity to drought. Different approaches have been developed to represent plant water stress. Empirical approaches (the empirical soil water str…
View article: Recent progress in remote sensing for advancing sustainable and precision agriculture
Recent progress in remote sensing for advancing sustainable and precision agriculture Open
Scalably sensing/estimating local information of environment, management, and crop at the field level is the first step of a “System-of-Systems” solution to quantify field-level agroecosystem dynamics (Guan et al., Earth-Scienc…
View article: Improving satellite microwave sensing of global soil moisture via radiative transfer process-guided machine learning
Improving satellite microwave sensing of global soil moisture via radiative transfer process-guided machine learning Open
Accurately estimating top ~5 cm surface soil moisture (SM) is highly valuable for understanding the terrestrial water cycle. Based on the zero-order τ-ω radiative transfer model (RTM), the Soil Moisture Active Passive (SMAP) miss…
View article: Embracing Large Language Model (LLM) Technologies in Hydrology Research
Embracing Large Language Model (LLM) Technologies in Hydrology Research Open
The growing complexity of hydrological systems necessitates innovative approaches to data management, knowledge management, and model development. Large Language Models (LLMs) have great potential to revolutionize hydrological research by …
View article: Cross-scale Sensing of Field-level Essential Agroecosystem Variables for the EU Climate-smart Agriculture
Cross-scale Sensing of Field-level Essential Agroecosystem Variables for the EU Climate-smart Agriculture Open
Climate-smart agriculture aims to implement a suite of conservation management practices, such as cover crops, reduced tillage, smart irrigation and crop rotations, to maximize agroecosystem productivity and reduce greenhouse gas emissions…
View article: Scalable quantification of agroecosystem carbon budget and crop yield based on knowledge-guided machine learning
Scalable quantification of agroecosystem carbon budget and crop yield based on knowledge-guided machine learning Open
Quantifying carbon outcomes from agroecosystems plays an important role in mitigating global warming and ensuring food security through sustainable production. However, high spatial-temporal-resolution (e.g., ~100m, daily), accurate, well-…
View article: Ammonia emissions and depositions over the contiguous United States derived from IASI and CrIS using the directional derivative approach
Ammonia emissions and depositions over the contiguous United States derived from IASI and CrIS using the directional derivative approach Open
Atmosphere ammonia (NH3), primarily emitted from agriculture, poses significant threats to ecosystems, climate, and human health through nitrogen deposition and secondary aerosol formation. NH3 flux estimates remain highly uncertain due to…
View article: Measure-and-remeasure as an economically feasible approach to crediting soil organic carbon at scale
Measure-and-remeasure as an economically feasible approach to crediting soil organic carbon at scale Open
Agricultural carbon crediting predominantly relies on process-based biogeochemical models to estimate accrual of soil organic carbon stock (SOC). We investigate the conditions under which it may be economical to estimate SOC accrual by mea…
View article: The new insights of lactate in various kidney diseases
The new insights of lactate in various kidney diseases Open
Background Kidneys are crucial for systemic lactate homeostasis, and a proper lactate balance subsequently supports normal kidney structure and function. The physiological lactate production-clearance axis along the proximal-distal tubular…
View article: The Global Spectra-Trait Initiative: A database of paired leaf spectroscopy and functional traits associated with leaf photosynthetic capacity (v1.0.0)
The Global Spectra-Trait Initiative: A database of paired leaf spectroscopy and functional traits associated with leaf photosynthetic capacity (v1.0.0) Open
The Global Spectra-Trait Initiative (GSTI) aims to generate generalizable spectra trait models using reflectance data to predict leaf traits associated with the photosynthesis capacity of leaves. It comprises a synthesized dataset of leaf …