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Publications (10)
Land surface models (LSMs) play a crucial role in elucidating water and carbon cycles by simulating processes such as plant transpiration and evaporation from bare soil, yet calibration often relies on comparing LSM outputs of landscape total evapotranspiration (ET) and discharge with measured bulk fluxes. Discrepancies in partitioning into compone...
Hyperspectral imaging allows for rapid, non-destructive and objective assessments of crop health. Narrowband-hyperspectral data was used to select wavelength regions that can be exploited to identify wheat infected with soil-borne mosaic virus. First, leaf samples were scanned in the lab to investigate spectral differences between healthy and disea...
Hyperspectral imaging is useful in identifying plant stress over large areas or with large numbers of individuals. The vast data sets make machine learning indispensable, but the choice of machine-learning model, the accuracy of models in extrapolation over time (dynamic data), and timing of measurements require further elucidation. We assessed two...
Finding trees that are resistant to pathogens is key in preparing for current and future disease threats such as the invasive white pine blister rust. In this study, we analyzed the potential of using hyperspectral imaging to find and diagnose the degree of infection of the non-native white pine blister rust in southwestern white pine seedlings fro...
Nature‐based solutions for water‐resources challenges require advances in the science of ecohydrology. Current understanding is limited by a shortage of observations and theories that can further our capability to synthesize complex processes across scales ranging from sub‐millimeters to tens of kilometers. Recent developments in environmental sens...
The use of drainage pipe is documented as far back as 200 B. C. and continues to be used in poorly drained agricultural regions throughout the world. While good for crop production, the eco-hydrologic impacts of this modification have been shown to adversely affect natural drainage networks. Identifying the exact location of drainage pipe networks...
Ploidy level in plants may influence ecological functioning, demography and response to climate change. However, measuring ploidy level typically requires intensive cell or molecular methods.
We map ploidy level variation in quaking aspen, a dominant North American tree species that can be diploid or triploid and that grows in spatially extensive c...
Reliable, accurate, and affordable linear motion control systems for precision agriculture applications are currently not easily accessible due to their elevated cost. Most systems available to the public have price tags in the thousands of dollars and their dimensions cannot be easily customized. Current systems have a maximum length of about ten...
Southwestern white pine (Pinus strobiformis; SWWP) is a native tree species threatened by the rapidly changing climate and a non-native tree disease (white pine blister rust). Our team of researchers studies the ecology and evolution of SWWP across its range in the United States and Mexico to find solutions for sustaining this tree. Genetic and env...