Modélisation des agroécosystèmes et aide à la décision PDF Download

Author: Eric Malézieux
Publisher: Editions Quae
ISBN: 9782876144743
Category : Technology & Engineering
Languages : fr
Pages : 456

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Book Description
Du peuplement végétal au champ cultivé et de l'exploitation agricole au territoire, différents types et degrés d'interdisciplinarité sont mis en oeuvre, des sciences biophysiques aux sciences de gestion, pour mieux appréhender dynamiques agroécologiques et socioéconomiques. En s'appuyant sur des situations agricoles concrètes et des expériences variées dans des milieux tempérés ou tropicaux, cet ouvrage contribue à préciser les différentes manières de concevoir, d'élaborer et d'utiliser les modèles et la place de la modélisation dans l'aide à la décision au sein des agroécosystèmes.

Author: Franck Varenne
Publisher: Routledge
ISBN: 1351660934
Category : History
Languages : en
Pages : 236

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Book Description
This book analyses the impact computerization has had on contemporary science and explains the origins, technical nature and epistemological consequences of the current decisive interplay between technology and science: an intertwining of formalism, computation, data acquisition, data and visualization and how these factors have led to the spread of simulation models since the 1950s. Using historical, comparative and interpretative case studies from a range of disciplines, with a particular emphasis on the case of plant studies, the author shows how and why computers, data treatment devices and programming languages have occasioned a gradual but irresistible and massive shift from mathematical models to computer simulations. The Open Access version of this book, available at http://www.taylorfrancis.com, has been made available under a Creative Commons [Attribution-Non Commercial-No Derivatives (CC-BY-NC-ND)] 4.0 license.

Author: Nadine Brisson
Publisher: Editions Quae
ISBN: 2759201694
Category : Technology & Engineering
Languages : en
Pages : 300

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Book Description
The STICS crop model has been developed since 1996 at INRA in collaboration with other research and technical institutes. The model syntheses, illustrates and concretizes an important part of the French agronomic knowledge as a point of view on the field and cropping systems working. The formalisations of the STICS crop model presented in this book can be considered as references used in the framework of crop sciences. The book arrangement relies on the way the model designs the crop-soil system functioning, each chapter being devoted to a set of important functions such as growth initiation, yield onset, water uptake, transformation of organic matter etc. One chapter deals with the cropping system and long term simulations and the final chapter is about the involvement of the user in terms of option choices and parameterization. If this book is mainly intended for scientists who use the STICS model, it can also be useful for agronomists, crop modellers, students and technicians looking for elementary formalizations of the crop-soil system functioning.

Author:
Publisher:
ISBN:
Category : Agricultural ecology
Languages : en
Pages : 260

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Book Description

Author: Daniel Wallach
Publisher: Elsevier
ISBN: 008046193X
Category : Technology & Engineering
Languages : en
Pages : 465

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Book Description
Mathematical models are being used more and more widely to study complex dynamic systems (global weather, ecological systems, hydrological systems, nuclear reactors etc. including the specific subject of this book, crop-soil systems). The models are important aids in understanding, predicting and managing these systems. Such models are complex and imperfect. One fundamental research direction is to seek a better understanding of how these systems function, and to propose mathematical expressions embodying that understanding. However, this is not sufficient. It is also essential to have tools (often mathematical and statistical methods) to aid in developing, improving and using the models built from those equations. The book is specifically concerned with the application of methods to crop models, but much of the material is also applicable to dynamic system models in other fields. The goal of this book is to fill that gap.* State-of-the-art methods explained simply and illustrated specifically for crop models* Parameter estimation – applying statistical methods to the complex case of crop models, including Bayesian methods * Includes model evaluation, understanding and estimating prediction error* Offers a unique data assimilation by using the Kalman filter and beyond

Author: James Salinger
Publisher: Springer Science & Business Media
ISBN: 1402041667
Category : Science
Languages : en
Pages : 359

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Book Description
This book reviews the latest assessments of climate variability and climate change, and their impacts on agriculture and forestry, and recommends appropriate adaptation strategies for reducing the vulnerability of agriculture and forestry to climate variability and climate change. Among other solutions, the text offers management strategies to mitigate greenhouse gas emissions from different agroecosystems, and proposes the use of seasonal climate forecasts to reduce climate risk.

Author: Nicolas Baghdadi
Publisher: Elsevier
ISBN: 0081011830
Category : Science
Languages : en
Pages : 498

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Book Description
The environmental and economic importance of monitoring forests and agricultural resources has allowed remote sensing to be increasingly in the development of products and services responding to user needs.This volume presents the main applications in remote sensing for agriculture and forestry, including the primary soil properties, the estimation of the vegetation's biophysical variables, methods for mapping land cover, the contribution of remote sensing for crop and water monitoring, and the estimation of the forest cover properties (cover dynamic, height, biomass).This book, part of a set of six volumes, has been produced by scientists who are internationally renowned in their fields. It is addressed to students (engineers, Masters, PhD), engineers and scientists, specialists in remote sensing applied to agriculture and forestry.Through this pedagogical work, the authors contribute to breaking down the barriers that hinder the use of radar imaging techniques. - Provides clear and concise descriptions of modern remote sensing methods - Explores the most current remote sensing techniques with physical aspects of the measurement (theory) and their applications - Provides chapters on physical principles, measurement, and data processing for each technique described - Describes optical remote sensing technology, including a description of acquisition systems and measurement corrections to be made

Author:
Publisher:
ISBN:
Category : Engineering
Languages : en
Pages : 1062

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Author: Stefano Farolfi
Publisher: Routledge
ISBN: 1136548734
Category : Law
Languages : en
Pages : 321

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Book Description
Good management of water resources - universally identified as a key aspect of poverty reduction, agriculture and food security - has proven, in practice, as difficult to achieve as it is eagerly sought. This book, edited and authored by leading authorities on water resource management, examines the recent changes in governance, institutions, economics and policies of water, covering developing, transitional and developed countries, with special emphasis on southern African case studies. The book examines how water policies, institutions and governance have shifted in recent years from supply-driven, quantitative, centrally controlled management to more demand-sensitive, decentralized, participatory approaches. Such a move often also implies cost recovery principles, resource allocation among competing sectors, and privatization. The case studies demonstrate that the new policies and legal frameworks have been difficult to implement and often fall short of initial expectations. Using an accessible multidisciplinary approach that integrates economics, sociology, geography and policy analysis, the book untangles the issues and presents best practices for policy- and decision-makers, governments and regulators, NGOs and user groups, service providers, and researchers. The overall aim is to show how good water governance structures can be developed and implemented for the benefit of all.

Author: Ludwig Theuvsen
Publisher: BRILL
ISBN: 9086866050
Category : Technology & Engineering
Languages : en
Pages : 509

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Book Description
This publication comprises material on recent studies on quality management in agri-food chains. Due to several food crisis’s (e.g. BSE, Foot-and-Mouth disease) and growing demands for food quality and safety, quality management systems and quality assurance schemes have been widely adopted in different countries in recent years. Scientific knowledge about the features, the acceptance and the effectiveness and efficiency of these newly introduced quality management initiatives, has remained scarce until now. The material by experts in the field, focuses on the evaluation of quality management systems and quality assurance schemes. The main issues are the costs and benefits of quality management given the influence of the public sector and consumers' expectations about food quality and safety. Not only are benchmarking and harmonisation methods examined with regard to their impact on the effectiveness of quality assurance schemes, but, also the role of trust, cooperation and integration for efficient quality management is discussed. Different economic theories such as microeconomics, organization and marketing theory as well as advanced statistical methods are applied. Concepts are discussed from the various points of view of industrialised, export-oriented and developing countries throughout the book. The information in this book give a comprehensive review of quality management concepts in food chains and highlight future research directions from a global perspective. This book is of interest to all those who concern themselves with the topic, be it in academia or in the professional sector.