Quantifying plant-soil-nutrient dynamics in rangelands: Fusion of UAV hyperspectral-LiDAR, UAV multispectral-photogrammetry, and ground-based LiDAR-digital …

JB Sankey, TT Sankey, J Li, S Ravi, G Wang… - Remote Sensing of …, 2021 - Elsevier
Rangelands cover 70% of the world's land surface, and provide critical ecosystem services
of primary production, soil carbon storage, and nutrient cycling. These ecosystem services …

Integrating drone imagery with existing rangeland monitoring programs

JK Gillan, JW Karl, WJD van Leeuwen - Environmental monitoring and …, 2020 - Springer
The recent availability of small and low-cost sensor carrying unmanned aerial systems
(UAS, commonly known as drones) coupled with advances in image processing software …

[HTML][HTML] Assimilating optical satellite remote sensing images and field data to predict surface indicators in the Western US: Assessing error in satellite predictions …

J Zhang, GS Okin, B Zhou - Remote Sensing of Environment, 2019 - Elsevier
Indicators of vegetation composition, vegetation structure, bare ground cover, and gap size
in drylands potentially gives information about the condition of ecosystems, in part because …

Riparian vegetation, Colorado River, and climate: Five decades of spatiotemporal dynamics in the Grand Canyon with river regulation

JB Sankey, BE Ralston, PE Grams… - Journal of …, 2015 - Wiley Online Library
Documentation of the interacting effects of river regulation and climate on riparian vegetation
has typically been limited to small segments of rivers or focused on individual plant species …

Disturbance automated reference toolset (DART): Assessing patterns in ecological recovery from energy development on the Colorado Plateau

TW Nauman, MC Duniway, ML Villarreal… - Science of the Total …, 2017 - Elsevier
A new disturbance automated reference toolset (DART) was developed to monitor human
land surface impacts using soil-type and ecological context. DART identifies reference areas …

Biophysical factors control invasive annual grass hot spots in the Mojave Desert

TC Smith, TBB Bishop, MC Duniway, ML Villarreal… - Biological …, 2023 - Springer
Invasive annual grasses can promote ecosystem state changes and habitat loss in the
American Southwest. Non-native annual grasses such as Bromus spp. a nd Schismus spp …

Modeling vegetation heights from high resolution stereo aerial photography: An application for broad-scale rangeland monitoring

JK Gillan, JW Karl, M Duniway, A Elaksher - Journal of environmental …, 2014 - Elsevier
Vertical vegetation structure in rangeland ecosystems can be a valuable indicator for
assessing rangeland health and monitoring riparian areas, post-fire recovery, available …

UAV‐derived imagery for vegetation structure estimation in rangelands: validation and application

J Zhang, GS Okin, B Zhou, JW Karl - Ecosphere, 2021 - Wiley Online Library
The purpose of this study is to develop an unmanned aerial vehicle (UAV)‐based remote
sensing method that can estimate vegetation indicators in arid and semiarid rangelands …

Drone-based remote sensing for research on wind erosion in drylands: possible applications

J Zhang, W Guo, B Zhou, GS Okin - Remote Sensing, 2021 - mdpi.com
With rapid innovations in drone, camera, and 3D photogrammetry, drone-based remote
sensing can accurately and efficiently provide ultra-high resolution imagery and digital …

[PDF][PDF] Monitoring protocols: options, approaches, implementation, benefits

JW Karl, JE Herrick, DA Pyke - Rangeland Systems: Processes …, 2017 - library.oapen.org
Monitoring and adaptive management are fundamental concepts to rangeland management
across land management agencies and embodied as best management practices for private …