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Articles 1 - 6 of 6
Full-Text Articles in Physical Sciences and Mathematics
Feasibility Assessment On Use Of Proximal Geophysical Sensors To Support Precision Management, Sophia M. Becker
Feasibility Assessment On Use Of Proximal Geophysical Sensors To Support Precision Management, Sophia M. Becker
School of Natural Resources: Dissertations, Theses, and Student Research
Soil property maps provide information for field management activities such as irrigation, fertilization, and seeding. Many on-the-go proximal geophysical sensors have been developed in recent decades that can help map agricultural fields without dense soil sampling. To utilize these technologies most profitably in precision management, scientists and precision agriculture dealers must better understand sensors’ performances in given field conditions and the economic value of different proximal soil sensing methods. Chapter two reports the study that was conducted at three sites in North Dakota, United States to strengthen understanding of the usefulness of different proximal geophysical data types in agricultural contexts …
Toward A Method Of Collaborative, Evidence-Based Response To Desertification, Brandon T. Bestelmeyer, Joel R. Brown, Jason W. Karl, Jeffrey E. Herrick, Kris M. Havstad
Toward A Method Of Collaborative, Evidence-Based Response To Desertification, Brandon T. Bestelmeyer, Joel R. Brown, Jason W. Karl, Jeffrey E. Herrick, Kris M. Havstad
IGC Proceedings (1997-2023)
Over generalized narratives about how desertified ecosystems will respond to restoration actions may result in wasted resources, missed opportunities, or accelerated degradation. Evidence-based collaborative adaptive management (CAM) could solve this problem by providing site-specific information that is trusted by users and enables learning opportunities. Although calls for CAM are increasing, many recommendations remain abstract and difficult to operationalize in specific projects. We review some general challenges for managing desertification in rangelands and draw upon recommendations in the recent literature to develop a 6-step method of CAM to address desertification. The method draws upon our ongoing experiences and makes novel connections …
Towards Mapping Soil Carbon Landscapes: Issues Of Sampling Scale And Transferability, Bradley A. Miller, Sylvia Koszinski, Wilfried Hierold, Helmut Rogasik, Boris Schröder, Kristof Van Oost, Marc Wehrhan, Michael Sommer
Towards Mapping Soil Carbon Landscapes: Issues Of Sampling Scale And Transferability, Bradley A. Miller, Sylvia Koszinski, Wilfried Hierold, Helmut Rogasik, Boris Schröder, Kristof Van Oost, Marc Wehrhan, Michael Sommer
Bradley A Miller
The conversion of point observations to a geographic field is a necessary step in soil mapping. For pursuing goals of mapping soil carbon at the landscape scale, the relationships between sampling scale, representation of spatial variation, and accuracy of estimated error need to be considered. This study examines the spatial patterns and accuracy of predictions made by different spatial modelling methods on sample sets taken at two different scales. These spatial models are then tested on independent validation sets taken at three different scales. Each spatial modelling method produced similar, but unique, maps of soil organic carbon content (SOC%). Kriging …
The Historical Role Of Base Maps In Soil Geography, Bradley A. Miller, R. J. Schaetzl
The Historical Role Of Base Maps In Soil Geography, Bradley A. Miller, R. J. Schaetzl
Bradley A Miller
Soil mapping is a major goal of soil science. Soil maps rely upon accurate base maps, both for positional reference and to provide environmental data that can assist in the prediction of soil properties. This paper reviews the historical development of base maps used for soil mapping, and evaluates the dependence of soil mapping on base maps. The availability of geographic technology for producing base maps has both constrained and directed the geographic study of soil. The lack of accurate methods for determining location limited early geographic descriptions of soils to narratives, or to listings of attributes for property-based map …
Hyperspectral Measurements Of Wet, Dry And Saline Soils From The Mcmurdo Dry Valleys: Soil Moisture Properties From Remote Sensing, Joseph S. Levy, Anne Nolin, Andrew G. Fountain, James W. Head
Hyperspectral Measurements Of Wet, Dry And Saline Soils From The Mcmurdo Dry Valleys: Soil Moisture Properties From Remote Sensing, Joseph S. Levy, Anne Nolin, Andrew G. Fountain, James W. Head
Geology Faculty Publications and Presentations
Soil moisture is a spatially heterogeneous quantity in the McMurdo Dry Valleys of Antarctica that exerts a large influence on the biological community and on the thermal state of Dry Valleys permafrost. The goal of this project was to determine whether hyperspectral remote sensing techniques could be used to determine soil moisture conditions in the Dry Valleys. We measured the spectral reflectance factors of wetted soil samples from the Dry Valleys under natural light conditions and related diagnostic spectral features to surface layer soil moisture content. Diagnostic water absorption features in the spectra at 1.4 mu m and 1.9 mu …
The Soils Of South Carrabin Research Station -Light Land Annex, Henry Smolinski, G G. Scholz
The Soils Of South Carrabin Research Station -Light Land Annex, Henry Smolinski, G G. Scholz
Resource management technical reports
No abstract provided.