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Sampling Strategies For Natural Resources And The Environment

Author: Timothy G. Gregoire
Publisher: CRC Press
ISBN: 1584883707
Size: 72.54 MB
Format: PDF
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Written by renowned experts in the field, Sampling Strategies for Natural Resources and the Environment covers the sampling techniques used in ecology, forestry, environmental science, and natural resources. The book presents methods to estimate aggregate characteristics on a per unit area basis as well as on an elemental basis. In addition to common sampling designs such as simple random sampling and list sampling, the authors explore more specialized designs for sampling vegetation, including randomized branch sampling and 3P sampling. One of the book's unique features is the emphasis on areal sampling designs, including plot/quadrat sampling, Bitterlich sampling, line intersect sampling, and several lesser known designs. The book also provides comprehensive solutions to the problem of edge effect. Another distinguishing aspect is the inclusion of sampling designs for continuums, focusing on the methods of Monte Carlo integration. By presenting a conceptual understanding of each sampling design and estimation procedure as well as mathematical derivations and proofs in the chapter appendices, this text promotes a deep understanding of the underpinnings of sampling theory, estimation, and inference. Moreover, it will help you reliably sample natural populations and continuums.

Sampling Techniques For Forest Inventories

Author: Daniel Mandallaz
Publisher: CRC Press
ISBN: 9781584889779
Size: 42.39 MB
Format: PDF, Kindle
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Sound forest management planning requires cost-efficient approaches to optimally utilize given resources. Emphasizing the mathematical and statistical features of forest sampling to assess classical dendrometrical quantities, Sampling Techniques for Forest Inventories presents the statistical concepts and tools needed to conduct a modern forest inventory. The book first examines design-based survey sampling and inference for finite populations, covering inclusion probabilities and the Horvitz–Thompson estimator, followed by more advanced topics, including three-stage element sampling and the model-assisted estimation procedure. The author then develops the infinite population model/Monte Carlo approach for both simple and complex sampling schemes. He also uses a case study to reveal a variety of estimation procedures, relies on anticipated variance to tackle optimal design for forest inventories, and validates the resulting optimal schemes with data from the Swiss National Forest Inventory. The last chapters outline facts pertaining to the estimation of growth and introduce transect sampling based on the stereological approach. Containing many recent developments available for the first time in book form, this concise and up-to-date work provides the necessary theoretical and practical foundation to analyze and design forest inventories.

Statistical Geoinformatics For Human Environment Interface

Author: Wayne L. Myers
Publisher: CRC Press
ISBN: 1420082876
Size: 45.97 MB
Format: PDF, Mobi
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Statistical Geoinformatics for Human Environment Interface presents two paradigms for studying both space and interface with regard to human/environment: localization and multiple indicators. The first approach localizes thematic targets by treating space as a pattern of vicinities, with the pattern being a square grid and the placement of vicinities centrically referenced. The second approach explores human/environment interface as an abstraction through indicators, neutralizing the common conundrum of how to reconcile disparate spatial structures such as points, lines, and polygons. These paired paradigms enable: The capacity to cope with complexity Systematic surveillance Visualization and communication Preliminary prioritization Coupling of GIS and statistical software Avenues for automation Illustrating the interdisciplinary nature of geoinformatics, this book offers a novel approach to the spatial analysis of human influences and environmental resources. It includes practical strategies for statistical and spatial analysis.

Introduction To Hierarchical Bayesian Modeling For Ecological Data

Author: Eric Parent
Publisher: CRC Press
ISBN: 1584889209
Size: 60.20 MB
Format: PDF, Mobi
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Making statistical modeling and inference more accessible to ecologists and related scientists, Introduction to Hierarchical Bayesian Modeling for Ecological Data gives readers a flexible and effective framework to learn about complex ecological processes from various sources of data. It also helps readers get started on building their own statistical models. The text begins with simple models that progressively become more complex and realistic through explanatory covariates and intermediate hidden states variables. When fitting the models to data, the authors gradually present the concepts and techniques of the Bayesian paradigm from a practical point of view using real case studies. They emphasize how hierarchical Bayesian modeling supports multidimensional models involving complex interactions between parameters and latent variables. Data sets, exercises, and R and WinBUGS codes are available on the authors’ website. This book shows how Bayesian statistical modeling provides an intuitive way to organize data, test ideas, investigate competing hypotheses, and assess degrees of confidence of predictions. It also illustrates how conditional reasoning can dismantle a complex reality into more understandable pieces. As conditional reasoning is intimately linked with Bayesian thinking, considering hierarchical models within the Bayesian setting offers a unified and coherent framework for modeling, estimation, and prediction.

Genug Holz F R Stadt Und Fluss Wiens Holzressourcen In Dynamischen Donau Auen

Author: Severin Hohensinner
Publisher: Guthmann-Peterson, Wien
ISBN: 3900782741
Size: 19.96 MB
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Was wissen wir heute über die natürliche Produktivität der Auwälder an großen Flüssen vor der Regulierung und über deren ehemalige Funktion als Rohstoffquelle für erneuerbare Energie? Können wir aus einer historischen Rekonstruktion der ehemals verfügbaren Holzressourcen Rückschlüsse für ein nachhaltiges Ressourcenmanagement ziehen? Die Beantwortung dieser Fragen war Ziel des Forschungsprojekts „Genug Holz für Stadt und Fluss? - Wiens Holzressourcen in dynamischen Donau-Auen“. Am Beispiel der Wiener Donau-Flusslandschaft vor der Regulierung 1820 - 1830 untersuchte ein interdisziplinäres Team bestehend aus Flussmorphologen, Gewässer-, Vegetations- und Forstökologen sowie Umwelthistorikerinnen drei zentrale Themenkreise: (1) Flussmorphologisch-forstökologische Standortsbedingungen und natürliches Potenzial der dynamischen Donau-Auen vor der Regulierung Holzressourcen zu produzieren, (2) Historischer Umgang einer ehemals biomassebasierten Gesellschaft mit lokal verfügbaren Holzressourcen in Wien, (3) Zukünftige Entwicklungsmöglichkeiten von Donau-Auwäldern unter Berücksichtigung ökologisch-naturschutzfachlicher Ziele und forstwirtschaftlicher Anforderungen für die Produktion erneuerbarer Energieressourcen. Neben naturwissenschaftlichen Erkenntnissen für eine nachhaltige Nutzung naturnaher, teilweise „redynamisierter“ Auwälder lieferte das Forschungsprojekt auch neue Beiträge zur Wiener Stadtgeschichte und zur historischen Veränderung der Donau-Flusslandschaft.

Pflanzenkrankheiten Und Pflanzenschutz

Author: Horst Börner
Publisher: Springer Science & Business Media
ISBN: 354049068X
Size: 33.50 MB
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Die Phytomedizin spielt im Hinblick auf die Sicherung der Welternährung eine immer wichtigere Rolle. Dieses Buch führt in kompakter Weise in die Phytomedizin ein: Welche Schäden an Pflanzen gibt es? Was kann die Phytomedizin dagegen tun? Wie funktioniert die Interaktion zwischen Pflanzen und Schadorganismen? Die 8., neu bearbeitete Auflage dieses Klassikers berücksichtigt die neuesten Erkenntnisse auf dem Gebiet der Phytomedizin.