Assessing The Spatial Distribution Of Crop Production Using A Cross Entropy Method

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Assessing the Spatial Distribution of Crop Production Using a Cross-Entropy Method

Author : Liangzhi You and Stanley Wood
Publisher : Intl Food Policy Res Inst
ISBN 13 :
Total Pages : 48 pages
Book Rating : 4./5 ( download)

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Book Synopsis Assessing the Spatial Distribution of Crop Production Using a Cross-Entropy Method by : Liangzhi You and Stanley Wood

Download or read book Assessing the Spatial Distribution of Crop Production Using a Cross-Entropy Method written by Liangzhi You and Stanley Wood and published by Intl Food Policy Res Inst. This book was released on 2012 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: While agricultural production statistics are reported on a geopolitical - often national - basis we often need to know the status of production or productivity within specific sub-regions, watersheds, or agro-ecological zones. Such re-aggregations are typically made using expert judgments or simple area-weighting rules. We describe a new, entropy-based approach to making spatially disaggregated assessments of the distribution of crop production. Using this approach tabular crop production statistics are blended judiciously with an array of other secondary data to assess the production of specific crops within individual "pixels" - typically 25 to 100 square kilometers in size. The information utilized includes crop production statistics, farming system characteristics, satellite-derived land cover data, biophysical crop suitability assessments, and population density. An application is presented in which Brazilian state level production statistics are used to generate pixel level crop production data for eight crops. To validate the spatial allocation we aggregated the pixel estimates to obtain synthetic estimates of municipio level production in Brazil, and compared those estimates with actual municipio statistics. The approach produced extremely promising results. We then examined the robustness of these results compared to short-cut approaches to spatializing crop production statistics and showed that, while computationally intensive, the cross-entropy method does provide more reliable estimates of crop production patterns.

Entropy Theory and its Application in Environmental and Water Engineering

Author : Vijay P. Singh
Publisher : John Wiley & Sons
ISBN 13 : 1118428609
Total Pages : 787 pages
Book Rating : 4.1/5 (184 download)

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Book Synopsis Entropy Theory and its Application in Environmental and Water Engineering by : Vijay P. Singh

Download or read book Entropy Theory and its Application in Environmental and Water Engineering written by Vijay P. Singh and published by John Wiley & Sons. This book was released on 2013-01-10 with total page 787 pages. Available in PDF, EPUB and Kindle. Book excerpt: Entropy Theory and its Application in Environmental and Water Engineering responds to the need for a book that deals with basic concepts of entropy theory from a hydrologic and water engineering perspective and then for a book that deals with applications of these concepts to a range of water engineering problems. The range of applications of entropy is constantly expanding and new areas finding a use for the theory are continually emerging. The applications of concepts and techniques vary across different subject areas and this book aims to relate them directly to practical problems of environmental and water engineering. The book presents and explains the Principle of Maximum Entropy (POME) and the Principle of Minimum Cross Entropy (POMCE) and their applications to different types of probability distributions. Spatial and inverse spatial entropy are important for urban planning and are presented with clarity. Maximum entropy spectral analysis and minimum cross entropy spectral analysis are powerful techniques for addressing a variety of problems faced by environmental and water scientists and engineers and are described here with illustrative examples. Giving a thorough introduction to the use of entropy to measure the unpredictability in environmental and water systems this book will add an essential statistical method to the toolkit of postgraduates, researchers and academic hydrologists, water resource managers, environmental scientists and engineers. It will also offer a valuable resource for professionals in the same areas, governmental organizations, private companies as well as students in earth sciences, civil and agricultural engineering, and agricultural and rangeland sciences. This book: Provides a thorough introduction to entropy for beginners and more experienced users Uses numerous examples to illustrate the applications of the theoretical principles Allows the reader to apply entropy theory to the solution of practical problems Assumes minimal existing mathematical knowledge Discusses the theory and its various aspects in both univariate and bivariate cases Covers newly expanding areas including neural networks from an entropy perspective and future developments.

Combining Revealed and Stated Preference Methods to Assess the Private Value of Agrobiodiversity in Hungarian Home Gardens

Author : Ekin Birol, Andreas Kontoleon, and Melinda Smale
Publisher : Intl Food Policy Res Inst
ISBN 13 :
Total Pages : 59 pages
Book Rating : 4./5 ( download)

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Book Synopsis Combining Revealed and Stated Preference Methods to Assess the Private Value of Agrobiodiversity in Hungarian Home Gardens by : Ekin Birol, Andreas Kontoleon, and Melinda Smale

Download or read book Combining Revealed and Stated Preference Methods to Assess the Private Value of Agrobiodiversity in Hungarian Home Gardens written by Ekin Birol, Andreas Kontoleon, and Melinda Smale and published by Intl Food Policy Res Inst. This book was released on with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Applied Methods for Agriculture and Natural Resource Management

Author : Siwa Msangi
Publisher : Springer
ISBN 13 : 3030134873
Total Pages : 268 pages
Book Rating : 4.0/5 (31 download)

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Book Synopsis Applied Methods for Agriculture and Natural Resource Management by : Siwa Msangi

Download or read book Applied Methods for Agriculture and Natural Resource Management written by Siwa Msangi and published by Springer. This book was released on 2019-05-17 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book assesses recent developments in the analysis of agricultural policy and water resource management, and highlights the utility and theoretical rigor of quantitative methods for modeling agricultural production, market dynamics, and natural resource management. In diverse case studies of the intersection between agriculture, environmental quality and natural resource sustainability, the authors analyze economic behavior - both at aggregate as well as at individual agent-level - in order to highlight the practical implications for decision-markers dealing with environmental and agricultural policy. The volume also addresses the challenges of doing robust analysis with limited data, and discusses the appropriate empirical approaches that can be employed. The studies in this book were inspired by the work of Richard E. Howitt, Emeritus Professor of Agricultural Economics at the University of California at Davis, USA, whose career has focused on the application of robust empirical methods to address concrete policy problems.

Risk Assessment and Management of Genetically Modified Organisms Under Australia's Gene Technology Act

Author : Nicholas Linacre, Jose Falck-Zepeda, John Komen, and Donald MacLaren
Publisher : Intl Food Policy Res Inst
ISBN 13 :
Total Pages : 39 pages
Book Rating : 4./5 ( download)

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Book Synopsis Risk Assessment and Management of Genetically Modified Organisms Under Australia's Gene Technology Act by : Nicholas Linacre, Jose Falck-Zepeda, John Komen, and Donald MacLaren

Download or read book Risk Assessment and Management of Genetically Modified Organisms Under Australia's Gene Technology Act written by Nicholas Linacre, Jose Falck-Zepeda, John Komen, and Donald MacLaren and published by Intl Food Policy Res Inst. This book was released on with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Analysis for Biotechnology Innovations Using Strategic Environmental Assessment (SEA)

Author : Nicholas A. Linacre, Joanne Gaskell, Mark W. Rosegrant, Jose Falck-Zepeda, Hector Quemada, Mark Halsey, and Regina Birner.
Publisher : Intl Food Policy Res Inst
ISBN 13 :
Total Pages : 55 pages
Book Rating : 4./5 ( download)

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Book Synopsis Analysis for Biotechnology Innovations Using Strategic Environmental Assessment (SEA) by : Nicholas A. Linacre, Joanne Gaskell, Mark W. Rosegrant, Jose Falck-Zepeda, Hector Quemada, Mark Halsey, and Regina Birner.

Download or read book Analysis for Biotechnology Innovations Using Strategic Environmental Assessment (SEA) written by Nicholas A. Linacre, Joanne Gaskell, Mark W. Rosegrant, Jose Falck-Zepeda, Hector Quemada, Mark Halsey, and Regina Birner. and published by Intl Food Policy Res Inst. This book was released on with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt:

A Hedonic Approach to Estimating the Supply of Variety Attributes of a Subsistence Crop

Author : Svetlana Edmeades
Publisher : Intl Food Policy Res Inst
ISBN 13 :
Total Pages : 49 pages
Book Rating : 4./5 ( download)

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Book Synopsis A Hedonic Approach to Estimating the Supply of Variety Attributes of a Subsistence Crop by : Svetlana Edmeades

Download or read book A Hedonic Approach to Estimating the Supply of Variety Attributes of a Subsistence Crop written by Svetlana Edmeades and published by Intl Food Policy Res Inst. This book was released on 2006 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Entropy Applications in Environmental and Water Engineering

Author : Huijuan Cui
Publisher : MDPI
ISBN 13 : 3038972223
Total Pages : 512 pages
Book Rating : 4.0/5 (389 download)

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Book Synopsis Entropy Applications in Environmental and Water Engineering by : Huijuan Cui

Download or read book Entropy Applications in Environmental and Water Engineering written by Huijuan Cui and published by MDPI. This book was released on 2019-03-07 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: Entropy theory has wide applications to a range of problems in the fields of environmental and water engineering, including river hydraulic geometry, fluvial hydraulics, water monitoring network design, river flow forecasting, floods and droughts, river network analysis, infiltration, soil moisture, sediment transport, surface water and groundwater quality modeling, ecosystems modeling, water distribution networks, environmental and water resources management, and parameter estimation. Such applications have used several different entropy formulations, such as Shannon, Tsallis, Rényi, Burg, Kolmogorov, Kapur, configurational, and relative entropies, which can be derived in time, space, or frequency domains. More recently, entropy-based concepts have been coupled with other theories, including copula and wavelets, to study various issues associated with environmental and water resources systems. Recent studies indicate the enormous scope and potential of entropy theory in advancing research in the fields of environmental and water engineering, including establishing and explaining physical connections between theory and reality. The objective of this Special Issue is to provide a platform for compiling important recent and current research on the applications of entropy theory in environmental and water engineering. The contributions to this Special Issue have addressed many aspects associated with entropy theory applications and have shown the enormous scope and potential of entropy theory in advancing research in the fields of environmental and water engineering.

Development and Evaluation of a Regional Water Poverty Index for Benin

Author : Claudia Heidecke
Publisher : Intl Food Policy Res Inst
ISBN 13 :
Total Pages : 55 pages
Book Rating : 4./5 ( download)

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Book Synopsis Development and Evaluation of a Regional Water Poverty Index for Benin by : Claudia Heidecke

Download or read book Development and Evaluation of a Regional Water Poverty Index for Benin written by Claudia Heidecke and published by Intl Food Policy Res Inst. This book was released on 2006 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt:

A Gap Analysis of Confined Field Trial Application Forms for Genetically Modified Crops in East Africa: Evaluating the Potential for Harmonization

Download A Gap Analysis of Confined Field Trial Application Forms for Genetically Modified Crops in East Africa: Evaluating the Potential for Harmonization PDF Online Free

Author : Nicholas A. Linacre and Joel I. Cohen
Publisher : Intl Food Policy Res Inst
ISBN 13 :
Total Pages : 42 pages
Book Rating : 4./5 ( download)

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Book Synopsis A Gap Analysis of Confined Field Trial Application Forms for Genetically Modified Crops in East Africa: Evaluating the Potential for Harmonization by : Nicholas A. Linacre and Joel I. Cohen

Download or read book A Gap Analysis of Confined Field Trial Application Forms for Genetically Modified Crops in East Africa: Evaluating the Potential for Harmonization written by Nicholas A. Linacre and Joel I. Cohen and published by Intl Food Policy Res Inst. This book was released on with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:

On Farm Conservation of Rice Biodiversity in Nepal: A Simultaneous Estimation Approach.

Author : D. Gauchan, M. E. Van Dusen, and M. Smale
Publisher : Intl Food Policy Res Inst
ISBN 13 :
Total Pages : 49 pages
Book Rating : 4./5 ( download)

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Book Synopsis On Farm Conservation of Rice Biodiversity in Nepal: A Simultaneous Estimation Approach. by : D. Gauchan, M. E. Van Dusen, and M. Smale

Download or read book On Farm Conservation of Rice Biodiversity in Nepal: A Simultaneous Estimation Approach. written by D. Gauchan, M. E. Van Dusen, and M. Smale and published by Intl Food Policy Res Inst. This book was released on with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The influence of current and future climate-induced risk on the agricultural sector in East and Central Africa

Author :
Publisher : ILRI (aka ILCA and ILRAD)
ISBN 13 : 9291462381
Total Pages : 128 pages
Book Rating : 4.2/5 (914 download)

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Book Synopsis The influence of current and future climate-induced risk on the agricultural sector in East and Central Africa by :

Download or read book The influence of current and future climate-induced risk on the agricultural sector in East and Central Africa written by and published by ILRI (aka ILCA and ILRAD). This book was released on 2009 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Parables: Applied Economics Literature About the Impact of Genetically Engineered Crop Varieties in Developing Economies

Author : Melinda Smale, Patricia Zambrano, José Falck-Zepeda, and Guillaume Gruère
Publisher : Intl Food Policy Res Inst
ISBN 13 :
Total Pages : 102 pages
Book Rating : 4./5 ( download)

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Book Synopsis Parables: Applied Economics Literature About the Impact of Genetically Engineered Crop Varieties in Developing Economies by : Melinda Smale, Patricia Zambrano, José Falck-Zepeda, and Guillaume Gruère

Download or read book Parables: Applied Economics Literature About the Impact of Genetically Engineered Crop Varieties in Developing Economies written by Melinda Smale, Patricia Zambrano, José Falck-Zepeda, and Guillaume Gruère and published by Intl Food Policy Res Inst. This book was released on with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:

From "Best Practice" to "Best Fit": A Framework for Analyzing Pluralistic Agricultural Advisory Services Worldwide

Author : Regina Birner, Kristin Davis, John Pender, Ephraim Nkonya, Ponniah Anandajayasekeram, Javier Ekboir, Adiel Mbabu, David J. Spielman, Daniela Horna, Samuel Benin, and Marc Cohen
Publisher : Intl Food Policy Res Inst
ISBN 13 :
Total Pages : 121 pages
Book Rating : 4./5 ( download)

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Book Synopsis From "Best Practice" to "Best Fit": A Framework for Analyzing Pluralistic Agricultural Advisory Services Worldwide by : Regina Birner, Kristin Davis, John Pender, Ephraim Nkonya, Ponniah Anandajayasekeram, Javier Ekboir, Adiel Mbabu, David J. Spielman, Daniela Horna, Samuel Benin, and Marc Cohen

Download or read book From "Best Practice" to "Best Fit": A Framework for Analyzing Pluralistic Agricultural Advisory Services Worldwide written by Regina Birner, Kristin Davis, John Pender, Ephraim Nkonya, Ponniah Anandajayasekeram, Javier Ekboir, Adiel Mbabu, David J. Spielman, Daniela Horna, Samuel Benin, and Marc Cohen and published by Intl Food Policy Res Inst. This book was released on with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Farmer Management of Production Risk on Degraded Lands: The Role of Wheat Genetic Diversity in Tigray Region, Ethiopia

Author : Salvatore Di Falco, Jean-Paul Chavas, and Melinda Smale
Publisher : Intl Food Policy Res Inst
ISBN 13 :
Total Pages : 47 pages
Book Rating : 4./5 ( download)

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Book Synopsis Farmer Management of Production Risk on Degraded Lands: The Role of Wheat Genetic Diversity in Tigray Region, Ethiopia by : Salvatore Di Falco, Jean-Paul Chavas, and Melinda Smale

Download or read book Farmer Management of Production Risk on Degraded Lands: The Role of Wheat Genetic Diversity in Tigray Region, Ethiopia written by Salvatore Di Falco, Jean-Paul Chavas, and Melinda Smale and published by Intl Food Policy Res Inst. This book was released on with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Water Allocation Policies for the Dong Nai River Basin in Vietnam: An Integrated Perspective

Author : Claudia Ringler and Nguyen Vu Huy
Publisher : Intl Food Policy Res Inst
ISBN 13 :
Total Pages : 68 pages
Book Rating : 4./5 ( download)

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Book Synopsis Water Allocation Policies for the Dong Nai River Basin in Vietnam: An Integrated Perspective by : Claudia Ringler and Nguyen Vu Huy

Download or read book Water Allocation Policies for the Dong Nai River Basin in Vietnam: An Integrated Perspective written by Claudia Ringler and Nguyen Vu Huy and published by Intl Food Policy Res Inst. This book was released on with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Policy Options for Increasing Crop Productivity and Reducing Soil Nutrient Depletion and Poverty in Uganda.

Author : Ephraim Nkonya, John Pender, Crammer Kaizzi, Kato Edward, and Samuel Mugarura
Publisher : Intl Food Policy Res Inst
ISBN 13 :
Total Pages : 124 pages
Book Rating : 4./5 ( download)

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Book Synopsis Policy Options for Increasing Crop Productivity and Reducing Soil Nutrient Depletion and Poverty in Uganda. by : Ephraim Nkonya, John Pender, Crammer Kaizzi, Kato Edward, and Samuel Mugarura

Download or read book Policy Options for Increasing Crop Productivity and Reducing Soil Nutrient Depletion and Poverty in Uganda. written by Ephraim Nkonya, John Pender, Crammer Kaizzi, Kato Edward, and Samuel Mugarura and published by Intl Food Policy Res Inst. This book was released on with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: