Download or read book Predicting the Spatial Variability in Soil Properties Using DSM Across Malheur National Forest written by Elizabeth A. Seeno and published by . This book was released on 2015 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil properties may hold the key to improved predictions of soils during digital soil mapping (DSM), which has developed with a focus on environmental factors external to soil. The spatial variability in soil properties was modeled across Malheur National Forest in eastern Oregon as an approach to improve DSM. The resulting preliminary maps are to be used as a potential source of information to support soil survey efforts in the region. Soil properties predicted using DSM included surface and subsurface soil pH, cation exchange capacity (CEC), base saturation, organic matter content, and percent clay content. A Random Forest (RF) classification model, a data mining algorithm that uses many rule-based decision trees to generate predictions, was used to generate predictive maps for each of the listed soil properties from a limited training dataset. Regression kriging was also attempted using the same dataset, but the distribution and density of sample locations made for a more complicated process and the procedure was only successful when applied to log-transformed subsurface organic matter content data in a smaller area within the forest. Random Forest classification models of soil pH, organic matter content, clay content, and CEC performed reasonably well, although the models could not reliably predict base saturation variability. However, the RF modeling process provides a place to begin determining new avenues for improving our understanding of how soil properties vary across the landscape, and the resulting predictive maps highlight areas in the region that should be more heavily sampled during future soil survey mapping.
Download or read book Digital Soil Mapping written by Janis L. Boettinger and published by Springer Science & Business Media. This book was released on 2010-06-28 with total page 435 pages. Available in PDF, EPUB and Kindle. Book excerpt: Digital Soil Mapping is the creation and the population of a geographically referenced soil database. It is generated at a given resolution by using field and laboratory observation methods coupled with environmental data through quantitative relationships. Digital soil mapping is advancing on different fronts at different rates all across the world. This book presents the state-of-the art and explores strategies for bridging research, production, and environmental application of digital soil mapping.It includes examples from North America, South America, Europe, Asia, and Australia. The chapters address the following topics: - evaluating and using legacy soil data - exploring new environmental covariates and sampling schemes - using integrated sensors to infer soil properties or status - innovative inference systems predicting soil classes, properties, and estimating their uncertainties - using digital soil mapping and techniques for soil assessment and environmental application - protocol and capacity building for making digital soil mapping operational around the globe.
Download or read book Anthropologies of Medicine written by Beatrix Pfleiderer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Improving Water Management Recent OECD Experience written by OECD and published by OECD Publishing. This book was released on 2003-02-21 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication brings together the recent work of the OECD on water management issues. It identifies the main policy challenges addressed by that work for sustainable water management.
Download or read book Forest Inventory written by Annika Kangas and published by Springer Science & Business Media. This book was released on 2006-02-19 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book has been developed as a forest inventory textbook for students and could also serve as a handbook for practical foresters. We have set out to keep the mathematics in the book at a fairly non-technical level, and therefore, although we deal with many issues that include highly sophisticated methodology, we try to present first and foremost the ideas behind them. For foresters who need more details, references are given to more advanced scientific papers and books in the fields of statistics and biometrics. Forest inventory books deal mostly with sampling and measurement issues, as found here in section I, but since forest inventories in many countries involve much more than this, we have also included material on forestry applications. Most applications nowadays involve remote sensing technology of some sort, so that section II deals mostly with the use of remote sensing material for this purpose. Section III deals with national inventories carried out in different parts of world, and section IV is an attempt to outline some future possibilities of forest inventory methodologies. The editors, Annika Kangas Professor of Forest Mensuration and Management, Department of Forest Resource Management, University of Helsinki. Matti Maltamo Professor of Forest Mensuration, Faculty of Forestry, University of Joensuu. ACKNOWLEDGEMENTS
Download or read book The Brazilian Microbiome written by Victor Pylro and published by Springer. This book was released on 2017-09-21 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: Brazilian Microbiome: Current status and perspectives unites a set of distinguished investigators conducting microbiome research and builds a comprehensive reference book with up-to-date information regarding the Brazilian microbiome studies and trends. It covers terrestrial and host associated microbiomes, unveiling biological, biotechnological and technical aspects of research. This book is devoted to students and professionals interested in learning techniques for microbiome surveys, including culture-independent approaches, and to better understand the biology of microorganisms in nature, with emphasis on the Brazilian microbiomes.
Download or read book Sampling Methods Remote Sensing and GIS Multiresource Forest Inventory written by Michael Köhl and published by Springer Science & Business Media. This book was released on 2006-10-19 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the state-of-the-art of forest resources assessments and monitoring. It provides links to practical applications of forest and natural resource assessment programs. It offers an overview of current forest inventory systems and discusses forest mensuration, sampling techniques, remote sensing applications, geographic and forest information systems, and multi-resource forest inventory. Attention is also given to the quantification of non-wood goods and services.
Download or read book Restoring Western Ranges and Wildlands written by Stephen B. Monsen and published by . This book was released on 2004 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Military Police Investigations written by United States. Department of the Army and published by . This book was released on 1961 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Grammar Based Feature Generation for Time Series Prediction written by Anthony Mihirana De Silva and published by Springer. This book was released on 2015-02-14 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book proposes a novel approach for time-series prediction using machine learning techniques with automatic feature generation. Application of machine learning techniques to predict time-series continues to attract considerable attention due to the difficulty of the prediction problems compounded by the non-linear and non-stationary nature of the real world time-series. The performance of machine learning techniques, among other things, depends on suitable engineering of features. This book proposes a systematic way for generating suitable features using context-free grammar. A number of feature selection criteria are investigated and a hybrid feature generation and selection algorithm using grammatical evolution is proposed. The book contains graphical illustrations to explain the feature generation process. The proposed approaches are demonstrated by predicting the closing price of major stock market indices, peak electricity load and net hourly foreign exchange client trade volume. The proposed method can be applied to a wide range of machine learning architectures and applications to represent complex feature dependencies explicitly when machine learning cannot achieve this by itself. Industrial applications can use the proposed technique to improve their predictions.
Download or read book Red Lateritic Soils written by J. L. Sehgal and published by Taylor & Francis. This book was released on 1998 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Longman Student Grammar of Spoken and Written English written by Douglas Biber and published by . This book was released on 2003-06-10 with total page 487 pages. Available in PDF, EPUB and Kindle. Book excerpt: Simplified and reorganized, while avoiding much of the technical detail of Longman grammar of spoken and written English (LGSWE).
Download or read book The Kappa Child written by Hiromi Goto and published by Calgary : Red Deer Press. This book was released on 2001 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: In a house not at all reminiscent of "Little House on the Prairie", four Japanese-Canadian sisters struggle to escape the bonds of a family and landscape as inhospitable as the sweltering prairie heat.
Download or read book Grasping at Emptiness written by John Giorno and published by . This book was released on 1985 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Digital Soil Morphometrics written by Alfred E. Hartemink and published by Springer. This book was released on 2018-04-22 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is about digital soil morphometrics which is defined as the application of tools and techniques for measuring, mapping and quantifying soil profile properties, and deriving depth functions of soil properties. The book is structured along four research topics: (i) Soil profile properties, (ii) Soil profile imaging, (iii) Soil depth functions, and (iv) Use and applications. The pedon is at the heart of digital soil morphometrics. The use of digital soil morphometrics exceeds the pedology and soil classification purpose that it currently serves – it is used in rapid soil assessment that are needed in a range of biophysical studies. Digital soil morphometrics has the potential to enhance our understanding of soils and how we view them. The book presents highlights from The IUSS Inaugural Global Workshop on Digital Soil Morphometrics held in June 2015 in Madison, USA.
Download or read book Geopedology written by Joseph Alfred Zinck and published by Springer. This book was released on 2016-01-06 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a proven approach for reliable mapping of soil-landscape relationships to derive information for policy, planning and management at scales ranging from local to regional. It presents the theoretical and conceptual framework of the geopedologic approach and a bulk of applied research showing its application and benefits for knowledge generation relevant to geohazard studies, land use conflict analysis, land use planning, land degradation assessment, and land suitability analysis. Soil is a vital resource for society at large and an important determinant of the economic status of nations. The intensification of natural disasters and the increased land use competition for food and energy have raised awareness of the relevant role the pedosphere plays in natural and anthropogenic environments. Recent papers and global initiatives show a renewed interest in soil research and its applications for improved planning and management of this fragile and finite resource.
Download or read book Soil Salinity Assessment written by J. D. Rhoades and published by Food & Agriculture Org.. This book was released on 1999 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: Determination of soil salinity from aqueous electrical conductivity; determination of soil salinity from soil-paste and bulk soil electrical conductivity; example uses of salinity assessment technology; operational and equipment costs associated with salinity instrumentation measurement techniques.
