Reliability of Soil Map Units

Reliability of Soil Map Units PDF Author: Robert K. Morse
Publisher:
ISBN:
Category : Soils
Languages : en
Pages : 8

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Book Description

Reliability of Soil Map Units

Reliability of Soil Map Units PDF Author: Robert K. Morse
Publisher:
ISBN:
Category : Soils
Languages : en
Pages : 8

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Book Description


The Accuracy Of Spatial Databases

The Accuracy Of Spatial Databases PDF Author: Michael F. Goodchild
Publisher: CRC Press
ISBN: 0203490231
Category : Technology & Engineering
Languages : en
Pages : 207

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Book Description
The book addresses the problem of accuracy of spatial databases, and comprises of papers drawn from a wide range of physical and human systems, taking approaches which vary from statistical to descriptive. Together they present both a comprehensive review of existing knowledge, techniques and experience, and an analysis of critical research needs in this area of spatial data handling.

GlobalSoilMap

GlobalSoilMap PDF Author: Dominique Arrouays
Publisher: CRC Press
ISBN: 1138001198
Category : Science
Languages : en
Pages : 496

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Book Description
GlobalSoilMap: Basis of the global spatial soil information system contains contributions that were presented at the 1st GlobalSoilMap conference, held 7-9 October 2013 in Orléans, France. These contributions demonstrate the latest developments in the GlobalSoilMap project and digital soil mapping technology for which the ultimate aim is to produce a high resolution digital spatial soil information system of selected soil properties and their uncertainties for the entire world. GlobalSoilMap: Basis of the global spatial soil information system aims to stimulate capacity building and new incentives to develop full GlobalSoilMap products in all parts of the world.

National Soil Survey Handbook

National Soil Survey Handbook PDF Author: United States. Soil Conservation Service
Publisher:
ISBN:
Category : Soil surveys
Languages : en
Pages : 976

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Data Reliability and Risk Assessment in Soil Interpretations

Data Reliability and Risk Assessment in Soil Interpretations PDF Author: W. D. Nettleton
Publisher: Sssa
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 188

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Book Description
Soil survey reliability. Quality assessment of soil survey information. Data reliability and risk assessment. Environmental applications. Crop production risk as a factor in sustainable land management. Reliability of soil data and rsik assessment of data applications. Risk assessment as related to environmental science. Uncertainty in pesticide leaching risk due to soil variability. Use of variable and uncertain data to quantify. Quantifying the model of uncertainty and risk using sequential indicator simulation.

Predictive Soil Mapping with R

Predictive Soil Mapping with R PDF 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

Advances in Ecological Research

Advances in Ecological Research PDF Author:
Publisher: Academic Press
ISBN: 0080567053
Category : Science
Languages : en
Pages : 417

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Book Description
This volume contains five papers dealing with a wide range of plant, animal, and soil biological topics.Gray and his colleagues describe the origin and spread of the salt marsh grass Spartina anglica. The result of a hybridization at the close of the last century, this genetically uniform species has been extremely successful in its particular niche and has a fascinating biology.Smith stresses the importance of gene-environment interactions in life-history theory in contrast to the resource constraint emphasis of the optimization approach. Experimental approaches to the subject are also discussed.Chanway and his colleagues examine the evidence for the importance of interactions between plants and micro-organisms in the rhizosphere in determining the outcome of plant competition and the establishment of community structure. Despite scarce evidence, real effects meriting further research do seem to exist.Brundrett also deals with an aspect of ecology in the soil. Most plants seem to have mycorrhizal associates and their importance is now widely appreciated. Much has been learned but more research is needed to determine the beneficial or after effects of mycorrhizae in natural systems.Richter and Babar review the diversity of tropical soils. They are in fact much more variable than is often thought, perhaps because too few ecologists are specialists in soils. Clearly, a proper knowledge and understanding of the many soil types is vital to conservation and development work in the tropics. - Serves as the fourth volume under new editorial direction - Presents a broad range of topical papers in ecology - Contains five papers dealing with a wide range of plant, animal, and soil biological topics

Soil Survey

Soil Survey PDF Author:
Publisher:
ISBN:
Category : Soil surveys
Languages : en
Pages : 294

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Book Description


Technical Bulletin

Technical Bulletin PDF Author:
Publisher:
ISBN:
Category : Agricultural extension work
Languages : en
Pages : 478

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Book Description


Digital Soil Mapping with Limited Data

Digital Soil Mapping with Limited Data PDF Author: Alfred E. Hartemink
Publisher: Springer Science & Business Media
ISBN: 1402085923
Category : Nature
Languages : en
Pages : 448

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Book Description
Signi?cant technological advances have been few and far between in the past approximately one hundred years of soil survey activities. Perhaps one of the most innovative techniques in the history of soil survey was the introduction of aerial photographs as base maps for ?eld mapping, which replaced the conventional base map laboriously prepared by planetable and alidade. Such a relatively simple idea by today’s standards revolutionized soil surveys by vastly increasing the accuracy and ef?ciently. Yet, even this innovative approach did not gain universal acceptance immediately and was hampered by a lack of aerial coverage of the world, funds to cover the costs, and in some cases a reluctance by some soil mappers and cartog- phers to change. Digital Soil Mapping (DSM), which is already being used and tested by groups of dedicated and innovative pedologists, is perhaps the next great advancement in delivering soil survey information. However, like many new technologies, it too has yet to gain universal acceptance and is hampered by ignorance on the part of some pedologists and other scientists. DSM is a spatial soil information system created by numerical models that - count for the spatial and temporal variations of soil properties based on soil - formation and related environmental variables (Lagacheric and McBratney, 2007).