Author: National Research Council
Publisher: National Academies Press
ISBN: 0309048796
Category : Technology & Engineering
Languages : en
Pages : 201
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Book Description
Rangelands comprise between 40 and 50 percent of all U.S. land and serve the nation both as productive areas for wildlife, recreational use, and livestock grazing and as watersheds. The health and management of rangelands have been matters for scientific inquiry and public debate since the 1880s, when reports of widespread range degradation and livestock losses led to the first attempts to inventory and classify rangelands. Scientists are now questioning the utility of current methods of rangeland classification and inventory, as well as the data available to determine whether rangelands are being degraded. These experts, who are using the same methods and data, have come to different conclusions. This book examines the scientific basis of methods used by federal agencies to inventory, classify, and monitor rangelands; it assesses the success of these methods; and it recommends improvements. The book's findings and recommendations are of interest to the public; scientists; ranchers; and local, state, and federal policymakers.
Author: Tomislav Hengl
Publisher: Lulu.com
ISBN: 0359306357
Category : Technology & Engineering
Languages : en
Pages : 372
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Book Description
Predictive Soil Mapping (PSM) is based on applying statistical and/or machine learning techniques to fit models for the purpose of producing spatial and/or spatiotemporal predictions of soil variables i.e. maps of soil properties and classes at different resolutions. It is a multidisciplinary field combining statistics, data science, soil science, physical geography, remote sensing, geoinformation science and a number of other sciences. Predictive Soil Mapping with R is about understanding the main concepts behind soil mapping, mastering R packages that can be used to produce high quality soil maps, and about optimizing all processes involved so that also the production costs can be reduced. The online version of the book is available at: https: //envirometrix.github.io/PredictiveSoilMapping/ Pull requests and general comments are welcome. These materials are based on technical tutorials initially developed by the ISRIC's Global Soil Information Facilities (GSIF) development team over the period 2014-2017
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Category : Forest management
Languages : en
Pages : 104
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Author: United States. Department of the Interior. Library
Publisher:
ISBN:
Category : Library catalogs
Languages : en
Pages : 692
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Author: Joint Task Force of the U.S. Dept. of Agriculture and the State Universities and Land Grant Colleges
Publisher:
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Category : Forage plants
Languages : en
Pages : 100
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Category : Agriculture
Languages : en
Pages : 72
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Category : Forests and forestry
Languages : en
Pages : 216
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Author:
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Category :
Languages : en
Pages : 490
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Category : Indians of North America
Languages : en
Pages : 66
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Author:
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ISBN:
Category : Natural resources
Languages : en
Pages : 504
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Book Description
