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Dissertations / Theses on the topic 'Improvement of forest inventory'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Jonikavičius, Donatas. "Forest inventory improvement based on satellite images." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2012. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20121012_113102-15265.

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The aim of the study – improvement of on-going in Lithuania forest inventories based on satellite images and GIS databases. Specific objective of the study – to explore the possibilities of methods applied for the collection of information from satellite images and GIS databases and its processing in order to determine various Lithuanian forest characteristics, focusing on a variety of forest inventory schemes. 4 The goals of the study: 1. To discuss methodological assumptions for the use of satellite images and GIS database information to estimate various characteristics of the Lithuanian for

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2

Bikuvienė, Ina. "Theoretical and practical improvement of forest inventory by using laser scanning." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2012. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20121012_113052-08966.

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The aim and objectives. Overall: To improve forest inventory methods using laser scanning. Specific: To create methodological background for laser scanning in the Lithuanian forest inventory and to provide practical suggestions for the use of remote sensing technique in practice. To attain the objective, the following tasks were formulated: 1. To investigate the influence of forest cover on the digital surface model accuracy when it is drawn up based on laser scanning data; 2. To investigate estimation peculiarities of individual tree characteristics using laser scanning data in the Lithuanian

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3

Guimarães, Mariana Abdalla Prata. "Cultivo de Tectona grandis L.f. no Estado do Espírito Santo." Universidade Federal do Espírito Santo, 2012. http://repositorio.ufes.br/handle/10/5821.

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Made available in DSpace on 2016-12-23T13:51:55Z (GMT). No. of bitstreams: 1 Marianna Abdala Prata Guimaraes.pdf: 1260415 bytes, checksum: 07877be4cfd376c908247866809ece44 (MD5) Previous issue date: 2012-10-03<br>The objective was to create a map of zoning edaphoclimatic for teak in Espírito Santo, characterize six teak stands in southern Espírito Santo, and evaluate the genetic variability in progenies of Tectona grandis Lf in the municipality of Alegre, state of Espírito Santo. The work was divided into three chapters. At first, we used the fuzzy logic, in the desktop ArcGIS 9.2/ArcMap®, f

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4

Wallington, Edward David. "Forest height inventory from airborne Synthetic Aperture Radar." Thesis, University of Edinburgh, 2006. http://hdl.handle.net/1842/27609.

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This study assesses the capabilities of commercially available airborne short wavelength Synthetic Aperture Radar (SAR) Interferometry (InSAR) for retrieving individual tree and forest and stand height. In this study, tree height is estimated by subtracting a ground surface elevation model (a UK Ordinance Survey DEM, OSDEM) from a Digital Surface Model, DSM (from commercial Intermap Technologies) and the results are then compared to field measurements of tree and stand heights. Subsequently, the use of two airborne InSAR data sets is assessed for top height retrieval as an operational product,

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5

Mason, Nancy A. "Floral richness inventory of an eastern U.S. forest." Thesis, This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-06162009-063251/.

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6

Kauffman, Jobriath Scott. "Spatiotemporal Informatics for Sustainable Forest Production Utilizing Forest Inventory and Remotely Sensed Data." Diss., Virginia Tech, 2017. http://hdl.handle.net/10919/74974.

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The interrelationship between trees and humans is primordial. As pressures on natural resources grow and become more complex this innate connection drives an increased need for improved data and analytical techniques for assessing the status and trends of forests, trees, their products, and their services. Techniques for using readily available data such as the Forest Inventory and Analysis (FIA) database and output from forest disturbance detection algorithms derived from Landsat data, such as Vegetation Change Tracker (VCT), for estimating forest attributes across time from the state and i

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7

Herington, Stephen (Stephen Richard). "Supplier inventory and operations management process improvement methodology." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/81000.

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Thesis (M.B.A.)--Massachusetts Institute of Technology, Sloan School of Management; and, (S.M.)--Massachusetts Institute of Technology, Engineering Systems Division; in conjunction with the Leaders for Global Operations Program at MIT, 2013.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 62-63).<br>The Building Construction Products (BCP) Division of Caterpillar makes 12 different loader, excavator, and tractor products with 10 manufacturing facilities worldwide. With relatively high volume machines, BCP saw that their supply base continued to have challeng

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8

Maudie, Alan John. "Forest inventory classification using aerial image texture in the New Brunswick Acadian forest region." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape9/PQDD_0017/MQ48024.pdf.

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9

Yang, Tianying M. Eng Massachusetts Institute of Technology. "Production system improvement : floor area reduction and inventory optimization." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/78172.

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Thesis (M. Eng. in Manufacturing)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2012.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 75).<br>This thesis shows improvements of a medical device production system. The demand at the Medical Device Manufacturing Company (MDMC¹) is low for the occlusion system product and there is a need to introduce other production lines on the floor. MDMC gave the challenge to the MIT team to improve the production area utilization rate and inventory management for the occlusion system product. This

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10

Bleier, Mary F. "Use of prior distributions from aerial photographs in forest inventory." Thesis, Virginia Tech, 1986. http://hdl.handle.net/10919/41543.

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Bayesian estimates of gross cubic- foot volume per acre were computed for four stand types (plantation pine, natural pine. hardwood. and mixed wood stands) using aerial photo volume tables as the prior information source. Aerial photographs provided a reliable source of information even though most photographs were nearly five years old. For a given level of precision within a particular stand, Bayesian methods reduced the required field sample size up to 50% using all or half of the prior information available. Those priors which utilized a regression or a regression/topographic correction i

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11

Tremblay, Jean-François, and Jean-François Tremblay. "Forest inventory with a lidar-equipped robot for difficult environments." Master's thesis, Université Laval, 2019. http://hdl.handle.net/20.500.11794/37634.

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La foresterie est une industrie majeure dans plusieurs parties du monde. Elle dépend de l’inventaire forestier, qui consiste en la mesure des attributs des arbres. Dans ce mémoire, nous proposons l’utilisation de la cartographie 3D, basée sur l’algorithme itervative closest point, pour automatiquement mesurer des diamètres d’arbres à partir d’observations d’un robot mobile. Bien que des études précédentes démontraient le potentiel d’une telle technologie, elles présentaient des lacunes en terme de rigueur d’analyse et ne fonctionnaient pas dans des environnements forestiers difficiles. Nous av

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12

Fleming, Andrew Lawrence. "FOREST CARBON MAPPING AND SPATIAL UNCERTAINTY ANALYSIS: COMBINING NATIONAL FOREST INVENTORY DATA AND LANDSAT TM IMAGES." OpenSIUC, 2011. https://opensiuc.lib.siu.edu/theses/584.

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Being able to accurately map forest carbon is a critical step in the global carbon cycle modeling and management process. This project is aimed at enhancing the current methodologies used for forest carbon mapping, and applying a method to account for any errors produced. By doing so, more accurate decisions can be made based on the knowledge gained from forest carbon maps; such as policy decisions on how to manage forests, or how to mitigate climate change. The use of remotely sensed images, in combination with Forest Inventory and Analysis (FIA) data, is one such way of doing this. This

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13

Kelley, Jason William. "Evaluation of alternative applications of LiDAR-based enhanced forest inventory methods." Thesis, Forests, 2021. http://hdl.handle.net/1828/13344.

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Forests cover a large portion of the global land area and provide critical resources such as timber, food, and medicine in addition to playing a significant role in the global carbon cycle. As such, sustainable forest management practices are required to balance forest economies and climate change mitigation with other non-timber objectives. A key aspect of many sustainable forest management programs is forest monitoring, for which technological and methodological development has led to enhanced forest inventory (EFI) methods, many of which rely on remote sensing data from high-resolution ligh

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14

Thérien, Guillaume. "Growth prediction of recent permanent sample plots for forest inventory projection." Thesis, University of British Columbia, 1990. http://hdl.handle.net/2429/31159.

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Permanent sample plots have become the main source of information for estimating models which quantify the dynamic processes of a forest. Fitted models allow for projecting inventories, used to determine timber production and many forest management decisions. The quality of these models is largely dependent on the quality of the information provided by the permanent sample plots. However, the pool of information contained in recent permanent sample plots is limited. Efficient estimation techniques must use all the information available from such plots. Current estimation techniques can be imp

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15

YAZICI, Almila Berfin. "OEE IMPROVEMENT USING COST EFFECTIVE RAW MATERIAL INVENTORY MANAGEMENT : A CASE STUDY." Thesis, Linnéuniversitetet, Institutionen för teknik, TEK, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-19641.

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The companies ought to care about OEE because it is a measure that shows the effect of the performance and quality related losses on the system or equipment. In order to improve OEE, they focus on defining the losses under each OEE elements and try to eliminate these losses.This study aims to enhance raw material inventory management in order to eliminateinventory management related losses and improve OEE. Lack of raw material and improperstorage of raw material are main problems related to inventory management. A model isdeveloped and tested in order to prevent these problems and eliminate t

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16

Betnér, Staffan. "Trends in Forest Soil Acidity : A GAM Based Approach with Application on Swedish Forest Soil Inventory Data." Thesis, Uppsala universitet, Statistiska institutionen, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-352392.

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The acidification of soils has been a continuous process since at least the beginning of the 20th century. Therefore, an inquiry of how and when the soil pH levels have changed is relevant to gain better understanding of this process. The aim of this thesis is to study the average national soil pH level over time in Sweden and the local spatial differences within Sweden over time. With data from the Swedish National Forest Inventory, soil pH surfaces are estimated for each surveyed year together with the national average soil pH using a generalized additive modeling approach with one model for

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17

Lines, Emily. "Forest dynamics at regional scales : predictive models constrained with inventory data." Thesis, University of Cambridge, 2012. https://www.repository.cam.ac.uk/handle/1810/243636.

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Forest ecosystems store more carbon than the atmosphere and harbour the majority of the world's biodiversity, yet their response to changing climate is uncertain. Forest simulation models make landscape-level predictions of forest dynamics by scaling from key tree-level processes, but models typically have no climate dependency. In this thesis I demonstrate how large-scale national inventories combined with improvements in computational methods mean that models that incorporate the climate dependency of demographic processes may be parameterised at regional scales. In Chapter One I outline his

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18

Huang, Shongming. "Continuous forest inventory using multistage unequal probability sampling with partial replacement." Thesis, University of British Columbia, 1988. http://hdl.handle.net/2429/27348.

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Continuous forest inventory (CFI) with partial replacement of sampling units (SPR) has been established as an efficient inventory technique. Previous CFI with SPR theory was based on equal probability sampling which might not be as efficient as the unequal probability sampling that is now widely used in forest inventories. In this study, the general theory of multistage sampling combined with CFI using unequal probabilities in a SPR structure on two occasions is discussed. Estimators of the current means and the change in means for both one-stage and two-stage cases are given, along with the e

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19

Kelly, Tabatha Rae. "FOREST CHARACTERIZATION WITH HIGH RESOLUTION SATELLITE DATA FOR A REGIONAL INVENTORY." MSSTATE, 2009. http://sun.library.msstate.edu/ETD-db/theses/available/etd-03232009-155502/.

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<p> QuickBird satellite data was used to examine stem density, basal area, and crown density, as potential forest strata to aid in volume estimations for a regional inventory program. The classes used for analysis were pine pole and sawtimber, and hardwood pole and sawtimber. Total height, height to live crown, diameter at breast height (dbh), and crown class were measured on 129 field plots used in image classification and accuracy assessments. Supervised classification produced overall accuracy of 85% with a Kappa of 0.8065. The classification was used for the extraction of mean band data an

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20

Schulz, Rueben J. "Predicting time-since-fire from forest inventory data in Saskatchewan, Canada." Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/3232.

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Time-since-fire data are used to describe wildfire disturbances, the major disturbance type in the Boreal forest, over a landscape. These data can be used to calculate various parameters about wildfire disturbances, such as size, shape and severity. Collecting time-since-fire data is expensive and time consuming; the ability to derive it from existing forest inventory data would result in availability of fire data over larger areas. The objective of this thesis was to explore the use of forest inventory information for the prediction of time-since-fire data in the mixedwood boreal forests of S

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21

Shortt, James S. "A comparison of forest growth and yield models for inventory updating." Thesis, This resource online, 1993. http://scholar.lib.vt.edu/theses/available/etd-01102009-063919/.

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22

DeSena, Geoffrey. "Improvement of RANS Forest Model via Closure Coefficient Modification." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-326514.

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As wind farms continue to take up more land throughout Northern Europe, developers are looking to sparsely populated areas, particularly in northern Fennoscandia, which hosts strong winds but also mixed and patchy forests over complex terrain. The complexity makes wind resource assessments difficult, raising uncertainty and therefore cost. Computational fluid dynamics (CFD) has the potential to increase the accuracy and reliability of wind models, but the most common form of commercial CFD modeling, Reynolds averaged Navier-Stokes (RANS), makes limiting assumptions about the effect of the fore

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23

Ringvall, Anna. "Assessment of sparse populations in forest inventory : development and evaluation of probability sampling methods /." Umeå : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 2000. http://epsilon.slu.se/avh/2000/91-576-5885-4.pdf.

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24

Kamwi, Jonathan Mutau. "The use of high-resolution satellite imagery in forest inventory : a case of Hans Kanyinga Community Forest - Namibia." Thesis, Link to the online version, 2007. http://hdl.handle.net/10019/650.

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25

Yang, Sheng-I. "Efficient Sampling Methods for Forest Inventories and Growth Projections." Diss., Virginia Tech, 2019. http://hdl.handle.net/10919/101496.

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For operational forest management, a forest inventory is commonly conducted to determine the timber stocking and the value of standing trees in a stand. With time and costs constraints, appropriate sampling designs and models are required to perform the inventory efficiently, as well as to obtain reliable estimates for the variables needed to make projections. In this dissertation research, a simulation study was conducted to extensively explore four important topics in forest inventories: selection of measurement trees in point samples, projection from plot- and stand-level aggregations, subs

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26

Ward, Matthew John. "Fab cycle time improvement through inventory control : a wafer starts approach." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/39681.

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Thesis (M.B.A.)--Massachusetts Institute of Technology, Sloan School of Management; and, (S.M.)--Massachusetts Institute of Technology, Engineering Systems Division; in conjunction with the Leaders for Manufacturing Program at MIT, 2007.<br>Includes bibliographical references (p. 59-60).<br>Intel's Colorado Springs wafer fabrication facility, known internally as F23, has undertaken several initiatives to reduce cycle time including High Precision Maintenance (HPM), content reduction through the application of Manufacturing Excellence (mX), effective utilization of production equipment, and agg

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27

Dupernex, S. N. W. "Inventory parameter management and focused continuous improvement for repetitive batch manufacturers." Thesis, Aston University, 1997. http://publications.aston.ac.uk/10713/.

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What this thesis proposes is a methodology to assist repetitive batch manufacturers in the adoption of certain aspects of the Lean Production principles. The methodology concentrates on the reduction of inventory through the setting of appropriate batch sizes, taking account of the effect of sequence dependent set-ups and the identification and elimination of bottlenecks. It uses a simple Pareto and modified EBQ based analysis technique to allocate items to period order day classes based on a combination of each item's annual usage value and set-up cost. The period order day classes the items

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28

Hamzah, Khali Aziz Bin. "Inventory mapping of tropical peat swamp forest resources using microwave remote sensing." Thesis, University of Reading, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.363808.

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29

Liu, Chiun-Ming. "A decisionmaking framework for assessing atmospheric deposition impacts on regional forest inventory." Diss., Virginia Polytechnic Institute and State University, 1988. http://hdl.handle.net/10919/53575.

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A decisionmaking framework was developed to assess atmospheric deposition impacts on regional softwood inventory in Virginia. This decision making framework consists of three segments: a forest inventory projection model, a timber production function, and a timber consumption model. The Timber Resource Inventory Model (TRIM) was used to project future forest inventory, given initial inventory data, yield information, and harvest request. The timber production function allows the estimation of the individual effects of input variables on stand growth and yield. The timber consumption model was

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30

Elias, Patricia Elena. "Acid deposition effects on soil chemistry and forest growth on the Monongahela National Forest." Thesis, Virginia Tech, 2008. http://hdl.handle.net/10919/34494.

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<p>Acid deposition (AD) results largely from the combustion of fossil fuels, and has been found to negatively impact forest ecosystems. AD may acidify soils through base cation leaching or Al mobilization, may cause accumulation of nitrates and sulfates in soils, and in some cases has been related to forest decline. The Monongahela National Forest (MNF) lies downwind from many sources of AD pollution, and average deposition pH is around 4.4. Therefore, managers are concerned about the possible deleterious effects of AD on the forest ecosystem. During the 2006 Forest Plan revision, evaluati

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31

Fonseca, Gonçalo Vidal Brejo. "Modelação da espacialização do módulo de fogo no simulador regional SIMPLOT." Master's thesis, ISA/UTL, 2011. http://hdl.handle.net/10400.5/4144.

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32

Evans, Margaret E. K., Donald A. Falk, Alexis Arizpe, Tyson L. Swetnam, Flurin Babst, and Kent E. Holsinger. "Fusing tree-ring and forest inventory data to infer influences on tree growth." WILEY, 2017. http://hdl.handle.net/10150/625361.

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Better understanding and prediction of tree growth is important because of the many ecosystem services provided by forests and the uncertainty surrounding how forests will respond to anthropogenic climate change. With the ultimate goal of improving models of forest dynamics, here we construct a statistical model that combines complementary data sources, tree-ring and forest inventory data. A Bayesian hierarchical model was used to gain inference on the effects of many factors on tree growth-individual tree size, climate, biophysical conditions, stand-level competitive environment, tree-level c

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33

Fearer, Todd Matthew. "Evaluating Population-Habitat Relationships of Forest Breeding Birds at Multiple Spatial and Temporal Scales Using Forest Inventory and Analysis Data." Diss., Virginia Tech, 2006. http://hdl.handle.net/10919/29243.

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Multiple studies have documented declines of forest breeding birds in the eastern United States, but the temporal and spatial scales of most studies limit inference regarding large scale bird-habitat trends. A potential solution to this challenge is integrating existing long-term datasets such as the U.S. Forest Service Forest Inventory and Analysis (FIA) program and U.S. Geological Survey Breeding Bird Survey (BBS) that span large geographic regions. The purposes of this study were to determine if FIA metrics can be related to BBS population indices at multiple spatial and temporal scales and

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34

Fridman, Jonas. "Damaged and dead trees in Swedish forests : assessment and prediction based on data from the National Forest Inventory /." Umeå : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 2000. http://epsilon.slu.se/avh/2000/91-576-5880-3.pdf.

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Almeida, Alice Maria Marques de. "Desenvolvimento de um sistema para a inicialização de um modelo de crescimento e produção de montados de sobro." Doctoral thesis, ISA/UTL, 2010. http://hdl.handle.net/10400.5/3872.

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Doutoramento em Engenharia Florestal - Instituto Superior de Agronomia<br>The initialization of a growth and yield model is most of the times based on data coming from a forest inventory. However, it is usual that the user carries on a simplified inventory in which not all the variables needed for the initialization of the model are gathered. The additional data, needed for model initialization, will be obtained within the model through simulation of the required tree and stand variables based on the soil and climate characteristics as well as on the values of the tree or stand variables

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Tibok, Anthony. "Genetic improvement of the tropical forest plantation species Eucalyptus and Acacia." Thesis, University of Nottingham, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.260347.

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Jones, Thomas Luke. "A FOREST PRODUCT/BIOENERGY MILL LOCATION AND DECISION SUPPORT SYSTEM BASED ON A COUNTY-LEVEL FOREST INVENTORY AND GEO-SPATIAL INFORMATION." MSSTATE, 2009. http://sun.library.msstate.edu/ETD-db/theses/available/etd-06052009-120338/.

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The forest products industry is a major component of the economic base for many states in the southeastern United States. Forest inventories that are precise within a 50- to 80-mile mill working circle and the availability of decision support tools for locating mills are of primary importance in attracting and sustaining the industry. This research focuses on the current status of the State of Mississippi's efforts to provide forest inventory information to attract forest industry and balance potentially increased utilization due to new markets with resource sustainability. A pilot study is de

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Vogt, Holger K. H. "An investigation into the feasibility of forest inventory by means of stereo satellite imagery employing digital photogrammetry technology." Thesis, Stellenbosch : Stellenbosch University, 2000. http://hdl.handle.net/10019.1/51609.

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Thesis (MSc)--Stellenbosch University, 2000.<br>ENGLISH ABSTRACT: The aim of the study was to extract elevation information (such as tree height) from stereo satellite imagery (IRS-I C), to scrutinise the performance of the DTM (Digital Terrain Model) tools as provided by the LH (LeicalHelava) Systems' softcopy system, and subsequently to perform a feasibility study on the application of a practically viable forest inventory design. A softcopy photogrammetry workstation (LH Systems DPW 770), IRS-I C stereo panchromatic satellite imagery, and digital aerial photography at a scale of 1:30

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Wolf, Zachary (Zachary Andrew). "Process improvement and inventory management using value stream mapping in a biopharmaceutical environment." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/81712.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering; and, (M.B.A.)--Massachusetts Institute of Technology, Sloan School of Management; in conjunction with the Leaders for Global Operations Program at MIT, 2013.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 73-75).<br>This thesis describes the formulation of short-term and mid-term operational excellence strategies through the use of value stream mapping. It is shown that many interconnected issues form a backdrop for seemingly independent "symptomatic issues" or issues tha

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Zhang, Yuwen M. Eng Massachusetts Institute of Technology. "Operational improvement at a mass customization semiconductor equipment manufacturing facility through inventory consolidation." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/113730.

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Thesis: M. Eng. in Advanced Manufacturing and Design, Massachusetts Institute of Technology, Department of Mechanical Engineering, 2017.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (page 77).<br>This thesis addresses the operational improvement at Varian Semiconductor Equipment and Associates (Varian), a subsidiary of Applied Materials (AMAT), through material shortage reduction. Varian manufa

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Lee, Nelson M. Eng Massachusetts Institute of Technology. "Product availability improvement for analytical column supply chain : inventory optimization and lot sizing." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/107545.

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Thesis: M. Eng. in Manufacturing, Massachusetts Institute of Technology, Department of Mechanical Engineering, 2016.<br>"September 2016." Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (page 75).<br>This thesis demonstrates the potential of a structured safety stock policy, and an improved lot sizing production policy on the inventory level and service level. The thesis focuses on incorporating demand variability into the factors of determining the safety stock level, and establishing a structured ordering and validation process. The thesis also

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Graham, John B. "Using low density, small footprint LIDAR in forest inventory applications in the Southeastern U.S." Connect to this title online, 2008. http://etd.lib.clemson.edu/documents/1219848606/.

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Kruger, Steven Daly. "Measuring Medicinal Nontimber Forest Product Output in Eastern Deciduous Forests." Diss., Virginia Tech, 2019. http://hdl.handle.net/10919/99236.

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Nontimber forest products (NTFPs) play an important role in the lives of people who rely on forests. An absence of data on the size of harvests, their location, and the economic value of NTFPs prevents effective management and full utilization by all stakeholder groups. We set out to measure one important NTFP sector -- the medicinal plant trade in the diverse deciduous forests of the eastern United States, by surveying licensed buyers of ginseng (Panax quinquefolius) in 15 states about purchasing of other untracked species. To combat potential coverage and non-response bias we created a place

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Lima, Natália da Silva. "Amostras virtuais no monitoramento da produção florestal." Universidade Estadual Paulista (UNESP), 2018. http://hdl.handle.net/11449/153248.

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Marcos, Matamoros Raül. "Improvement of seasonal forecasting techniques applied to water resources and forest fires." Doctoral thesis, Universitat de Barcelona, 2016. http://hdl.handle.net/10803/395198.

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This thesis studies the benefits of different calibration approaches on seasonal forecasting and the improvement of seasonal prognosis of water resources and forest fires. Droughts and wildfires are an inherent problem to the Mediterranean and are likely to worsen if climate change continues. Both hazards are a source of important economic costs, environmental damage and, in the case of wildfires, even life losses. These impacts have encouraged policy- and decision-makers to reduce vulnerability by placing great efforts in the development of mitigation and adaptation strategies. Seasonal forec

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Ramachandran, Venkataraman M. Eng Massachusetts Institute of Technology. "Operations improvement in a semiconductor capital equipment manufacturing plant : capacity management and inventory policies." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/78170.

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Thesis (M. Eng. in Manufacturing)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2012.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 109-110).<br>This thesis addresses the challenge of increasing capacity in a high-mix low-volume semiconductor equipment assembly plant, without investing in additional floor space or labor shifts. A hypothesis-driven methodology is used to analyze the factory operations and identify factors limiting capacity. Based on the preliminary analysis, a hypothesis tree is developed. Space, effective utiliza

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Popescu, Sorin Cristian. "Estimating Plot-Level Forest Biophysical Parameters Using Small-Footprint Airborne Lidar Measurements." Diss., Virginia Tech, 2002. http://hdl.handle.net/10919/27109.

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The main study objective was to develop robust processing and analysis techniques to facilitate the use of small-footprint lidar data for estimating forest biophysical parameters measuring individual trees identifiable on the three-dimensional lidar surface. This study derived the digital terrain model from lidar data using an iterative slope-based algorithm and developed processing methods for directly measuring tree height, crown diameter, and stand density. The lidar system used for this study recorded up to four returns per pulse, with an average footprint of 0.65 m and an average distance

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Heng, Sovanchandara. "Thinning Effects on Forest Stands and Possible Improvement in a Stand Reconstruction Technique." Kyoto University, 2019. http://hdl.handle.net/2433/242684.

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Klungle, Matthew M. "An evaluation of large woody debris restorations on the Manistee and Au Sable rivers, Michigan." Diss., Connect to online resource - MSU authorized users, 2006.

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Plugge, Daniel [Verfasser], and Michael [Akademischer Betreuer] Köhl. "Capabilities and deficiencies of terrestrial forest inventory systems in the assessment of forest degradation in the scope of REDD+ / Daniel Plugge. Betreuer: Michael Köhl." Hamburg : Staats- und Universitätsbibliothek Hamburg, 2013. http://d-nb.info/1030366136/34.

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