Relevant bibliographies by topics / Forests productivity / Dissertations / Theses
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Dissertations / Theses on the topic 'Forests productivity'

Author: Grafiati
Published: 2 June 2025
Last updated: 31 July 2025

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1

Boisvenue, Céline. "Assessing forest responses to climate change and resolving productivity measurements across spatial scales." Diss., [Missoula, Mont.] : The University of Montana, 2007. http://etd.lib.umt.edu/theses/available/etd-01042008-115155/.

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2

Thomas, Raquel Simone. "Forest productivity and resource availability in lowland tropical forests in Guyana." Thesis, University of London, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.325358.

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3

Bröms, Axelsson Emilia. "Do we protect the right forests? – A case study of representativeness of protected forests in Östergötland, Sweden, and identification of tracts of value." Thesis, Linköpings universitet, Biologi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-121408.

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Protected forests need to be a representative selection of the natural proportion of forest types, including distribution of productivity levels, age classes and nature types This is important for the possibility to preserve biodiversity. In addition, the protected areas has to be of sufficient size and not isolated from each other, to function as effective biodiversity preservers. The question is, how does it look in reality? The objective with this study was to get an overall picture of the current forest protection situation in Östergötland, Sweden, and how it has changed the last 60 years.
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4

White, Shawn K. "Validating Missouri landtype associations using tree species composition, forest structure, and productivity." Diss., Columbia, Mo. : University of Missouri-Columbia, 2005. http://hdl.handle.net/10355/4296.

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Thesis (M.S.)--University of Missouri-Columbia, 2005.<br>The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file viewed on (January 10, 2007) Vita. Includes bibliographical references.
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5

Nygård, Robert. "Productivity of woody vegetation in savanna woodlands in Burkina Faso /." Umeå : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 2000. http://epsilon.slu.se/avh/2000/91-576-5878-1.pdf.

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6

Davidson, Diedre P., and University of Lethbridge Faculty of Arts and Science. "Sensitivity of ecosystem net primary productivity models to remotely sensed leaf area index in a montane forest environment." Thesis, Lethbridge, Alta. : University of Lethbridge, Faculty of Arts and Science, 2002, 2002. http://hdl.handle.net/10133/155.

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Net primary productivity (NPP) is a key ecological parameter that is important in estimating carbon stocks in large forested areas. NPP is estimated using models of which leaf area index (LAI) is a key input. This research computes a variety of ground-based and remote sensing LAI estimation approaches and examines the impact of these estimates on modeled NPP. A relative comparison of ground-based LAI estimates from optical and allometric techniques showed that the integrated LAI-2000 and TRAC method was preferred. Spectral mixture analysis (SMA), accounting for subpixel influences on reflectan
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7

Guillemot, Joannès. "Productivity and carbon allocation in European forests : a process-based modelling approach." Thesis, Paris 11, 2015. http://www.theses.fr/2015PA112091/document.

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Les processus physiologiques déterminant la productivité forestière and l’allocation du carbone (C) entre les différents organes de l’arbre restent mal connus. La croissance forestière a longtemps été considérée comme limitée par le C, à travers un lien causal entre photosynthèse et croissance (contrôle de la croissance par la source de C). Ce paradigme C-centré est à l’origine des règles gouvernant l’allocation du C dans la plupart des modèles à base de processus (MBP). Cependant, le contrôle de la croissance forestière par la source de C a été remis en cause par un certain nombre d’études me
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8

Cavalcanti, Guadalupe Gatto Lockaby Bruce Graeme. "Effects of sediment deposition in aboveground net primary productivity, vegetation composition, structure, and fine root dynamics in riparian forests." Auburn, Ala, 2004. http://repo.lib.auburn.edu/EtdRoot/2004/SPRING/Forestry_and_Wildlife_Sciences/Thesis/CAVALCANTI_GUADALUPE_18.pdf.

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9

Chiang, Yang-Sheng. "Estimating landscape level leaf area index and net primary productivity using field measurements, satellite imagery, and a 2-D ecophysiological model." Virtual Press, 2004. http://liblink.bsu.edu/uhtbin/catkey/1294241.

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This study has provided a landscape level estimate of leaf area index (LAI) and net primary productivity (NPP) for a temperate broadleaf forest ecosystem in south-central Indiana. The estimates were compared with the Moderate Resolution Imaging Spectroradiometer (MODIS) biophysical products LAI and NPP from both spatial and temporal perspectives. The evidence suggests that field-based estimates were poorly correlated with global MODIS data due to the simplifying assumptions of the MODIS global applicability, saturation problems of the red reflectance in highly vegetated areas, homogeneous land
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10

Anyomi, Kenneth Agbesi. "Spatial and temporal complexities in forest productivity-climate relationships within northern temperate and boreal forests of eastern Canada." Thesis, Université Laval, 2013. http://www.theses.ulaval.ca/2013/30206/30206.pdf.

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La productivité est influencée par des facteurs climatiques et non-climatiques temporaires ou permanents. Leurs effets varient dans le temps et dans l’espace et le fait d’assumer une sensibilité homogène de la productivité alors qu’elle est en fait hétérogène a des conséquences sur la capacité de prévision de la productivité forestière. Il existe des preuves des changements globaux, régionaux et locaux et la réponse en terme de croissance à ces variations dans la forêt boréale est diversifiée et dans certains cas contrastées. Il est donc nécessaire de surveiller constamment la croissance et la
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11

Jolley, Rachel Lynn Lockaby Bruce Graeme. "Effects of sedimentation on productivity, nutrient cycling, and community composition in riparian forests associated with ephemeral streams at Ft. Benning, GA, USA." Auburn, Ala, 2008. http://repo.lib.auburn.edu/EtdRoot/2008/SPRING/Forestry_and_Wildlife_Sciences/Dissertation/Jolley_Rachel_38.pdf.

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12

Nordström, Högberg Mona. "Carbon and nitrogen relations among soils, microbes and plants in boreal forests /." Uppsala : Dept. of Forest Mycology and Pathology, Swedish Univ. of Agricultural Sciences, 2004. http://epsilon.slu.se/s314.pdf.

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13

Persson, Inga-Lill. "Moose population density and habitat productivity as drivers of ecosystem processes in northern boreal forests /." Umeå : Dept. of Animal Ecology, Swedish Univ. of Agricultural Sciences, 2003. http://epsilon.slu.se/s272.pdf.

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14

Schamp, Brandon Scott. "The relationship between productivity and species richness in mixed deciduous forests of southern Ontario." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/MQ63362.pdf.

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15

Addo-Danso, Shalom Daniel. "Biomass, productivity and allocation patterns in tropical old-growth and logged-over forests in Ghana." Thesis, University of British Columbia, 2017. http://hdl.handle.net/2429/62927.

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Understanding how tropical forest structure and function change during the decades after logging is a key research challenge. This thesis reports functional traits, forest structure, biomass, net primary productivity (NPP) and allocation, as well as their controlling factors in an old-growth forest and a 54-year-old logged-over forest in Ghana. By analyzing root traits, I found fine-root biomass, root length, surface area, and root tissue density were higher in the logged-over forest, whereas the old-growth forest had higher specific root length and specific root area. I also found divergent e
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16

VERSACE, SORAYA. "Influence of climatic variations and competitive interactions on the productivity of mountain forests in Italy." Doctoral thesis, country:IT, 2020. http://hdl.handle.net/10449/68220.

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Tree growth is influenced by multiple factors including, climate and competition processes. Climate change has a strong impact on growth of trees and can cause negative impacts on forests, especially in the Mediterranean basin. However, tree growth can also be influenced by competitive interactions, through the use and absorption of resources within tree communities. To quantify the level of competition between trees, competition indices are used, which are normally computed over small areas. Predicting competitive interactions over larger areas can be very important and light detection
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VERSACE, Soraya. "Influence of climatic variations and competitive interactions on the productivity of mountain forests in Italy." Doctoral thesis, Università degli studi del Molise, 2020. http://hdl.handle.net/11695/97766.

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La crescita degli alberi è influenzata da molteplici fattori tra cui, il clima e i processi di competizione. I cambiamenti climatici hanno un forte impatto sulla crescita degli alberi e possono causare impatti negativi sulle foreste, soprattutto nel bacino del Mediterraneo. Tuttavia, la crescita degli alberi è influenzata anche dalle interazioni competitive. Per quantificare le interazioni competitive tra gli alberi vengono utilizzati indici di competizione, che normalmente sono calcolati su aree di piccole dimensioni. Prevedere le interazioni competitive su aree più estese può essere molto im
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18

Klinka, Karel, Gordon J. Kayahara, and Christine Chourmouzis. "Regeneration, growth and productivity of trees within gaps of old-growth forests on the outer coast (CWHvh2) of British Columbia." Forest Sciences Department, University of British Columbia, 2001. http://hdl.handle.net/2429/669.

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Central to the issue of harvest feasibility on the outer BC coast (CWHvh) is the question of whether sites, once harvested, can be regenerated, and whether the time period for replacement and subsequent growth is economically and environmentally acceptable. Since low productivity sites have not been harvested in the past, there is a lack of data to answer this question. We tried to provide an answer by assessing regeneration following natural disturbances. Small scale gap disturbances are the norm within old-growth stands. If regeneration is not a problem in gaps, then we have some evidence th
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19

McWethy, David Burch. "Bird response to landscape pattern and disturbance across productivity gradients in forests on the Pacific Northwest." Diss., Montana State University, 2007. http://etd.lib.montana.edu/etd/2007/mcwethy/McWethyD0807.pdf.

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Managing forest lands for biodiversity is a common goal in the public and private forests of the Pacific Northwest and is typically achieved through harvests that result in an array of vegetation structural conditions that provide suitable habitat for a number of species. The assumption is made that the causative factors of biodiversity do not vary geographically and that silviculture, as a management tool, can be applied similarly across different biophysical locales. The primary aim of this research is to better understand how species respond to both local and landscape-scale forest structur
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20

Daneshgar, Pedram Patrick. "Imperata cylindrica invasion in juvenile Pinus taeda forests implications of diversity and impacts on productivity and nitrogen dynamics /." [Gainesville, Fla.] : University of Florida, 2007. http://purl.fcla.edu/fcla/etd/UFE0021118.

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21

Anderson, Robert Gray. "BREEDING PRODUCTIVITY, NEST DISTRIBUTION, AND POPULATION ECOLOGY OF WOOD DUCKS IN FLOODPLAIN AND UPLAND FORESTS OF SOUTHERN ILLINOIS." OpenSIUC, 2010. https://opensiuc.lib.siu.edu/dissertations/154.

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Wood ducks are thought to depend on mature hardwood forests juxtaposed with palustrine wetlands but these habitats have been continuously degraded or destroyed since European settlement. Wood ducks are adaptable and the use of marginal habitats and nest boxes has extended their range and probably was important to the recovery of wood duck populations. Until now no study has analyzed the contribution of upland nesting to local population growth and maintenance. I investigated predation effects on nest site selection using wood duck nests and simulated nests placed in natural cavities. Using dem
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22

Dress, William J. "Patterns of belowground productivity in Oak-Hickory Forests in Southern Ohio in relation to prescribed fire and landscape position /." The Ohio State University, 2001. http://rave.ohiolink.edu/etdc/view?acc_num=osu1488204276531635.

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23

Newcomer, Keith P. "Even-aged regeneration alternatives for low quality oak hardwood forests in the Virginia Piedmont." Thesis, Virginia Polytechnic Institute and State University, 1986. http://hdl.handle.net/10919/76042.

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The effects of site quality, dormant and growing season harvests, and four even-aged regeneration treatments on natural hardwood and planted loblolly pine (Pinus taeda L.) are examined three years after clear felling and whole-tree harvesting upland hardwood stands in the Virginia Piedmont. Natural hardwood regeneration was dominated by stump sprouts, with seedlings and advanced regeneration playing a secondary role. Stump sprouts and seedlings plus advanced regeneration were significantly taller with a dormant season harvest. A growing season harvest resulted in significantly better survival
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24

Grigalevičius, Tomas. "Miško plotų didinimo galimybės Kauno apskrityje." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2010. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20100615_121405-75449.

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Miškų plotas Lietuvoje didėja nuo XX amžiaus vidurio. Mažiausias miškingumas – 19,7% užfiksuotas 1948 metais, 2009 metais siekia 32,9%. Pagal Lietuvos miškingumo didinimo programą per 2004 – 2020 m. laikotarpį bendrą šalies miškingumą planuojama padidinti 3%. Programoje numatytos miško įveisimo apimtys, atsižvelgiant į nenašių ir žemės ūkiui nenaudojamų žemės ūkio naudmenų plotus. Norint efektyviai didinti miškingumą želdinimu arba miško žėlimo skatinimu, būtina atsižvelgti į visą kompleksą aplinkos veiksnių (ekonominių, ekologinių ir socialinių – etnokultūrinių), darančių įtaką miško želdinim
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25

Barnes, Mallory L., M. Susan Moran, Russell L. Scott, et al. "Vegetation productivity responds to sub-annual climate conditions across semiarid biomes." WILEY-BLACKWELL, 2016. http://hdl.handle.net/10150/616989.

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In the southwest United States, the current prolonged warm drought is similar to the predicted future climate change scenarios for the region. This study aimed to determine patterns in vegetation response to the early 21st century drought across multiple biomes. We hypothesized that different biomes (forests, shrublands, and grasslands) would have different relative sensitivities to both climate drivers (precipitation and temperature) and legacy effects (previous-year's productivity). We tested this hypothesis at eight Ameriflux sites in various Southwest biomes using NASA Moderate-resolution
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26

Gutsch, Martin [Verfasser], and Wolfgang [Akademischer Betreuer] Cramer. "Model-based analysis of climate change impacts on the productivity of oak-pine forests in Brandenburg / Martin Gutsch ; Betreuer: Wolfgang Cramer." Potsdam : Universität Potsdam, 2016. http://d-nb.info/1218400943/34.

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27

Xu, Shiyong, and University of Lethbridge Faculty of Arts and Science. "Sensitivity analysis of a carbon simulation model and its application in a montane forest environment." Thesis, Lethbridge, Alta. : University of Lethbridge, Faculty of Arts and Science, 2006, 2006. http://hdl.handle.net/10133/366.

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Accurate estimation of Net Primary Productivity (NPP), which is a key component of the terrestrial carbon cycle, is very important in studies of global climate. Ecosystem models have been used for NPP estimates. Determining how much each source of uncertainty contributes to modeled NPP is veiy important before ecosystem models can be used with confidence over larger areas and time periods. This research has systematically evaluated the boreal ecosystem productivity simulator (BEPS) carbon model in mountainous terrain, Kananaskis, Alberta. After parameterization of the model, sensitivity analys
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Grossiord, Charlotte. "Impact of tree species diversity on water and carbon relations in European forests." Thesis, Université de Lorraine, 2014. http://www.theses.fr/2014LORR0155/document.

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La biodiversité favorise un grand nombre de fonctions et services écosystémiques des écosystèmes forestiers tels que la production de bois ou la résistance aux attaques d’insectes et aux maladies. Cependant l’impact de la diversité sur l’acquisition et l’utilisation de l’eau et du carbone reste largement méconnu dans ces écosystèmes. De plus, dans le contexte actuel de changement climatique, l’influence de la diversité sur la réponse des écosystèmes forestiers à des événements climatiques extrêmes tels que la sécheresse reste à étudier. L’objectif de ce travail est donc de déterminer l’impact
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29

Glatthorn, Jonas [Verfasser], Christoph [Akademischer Betreuer] Leuschner, Christoph [Gutachter] Leuschner, Markus [Gutachter] Hauck, and Christoph [Gutachter] Kleinn. "Structure, Productivity and Carbon Storage of Primeval European Beech Forests / Jonas Glatthorn ; Gutachter: Christoph Leuschner, Markus Hauck, Christoph Kleinn ; Betreuer: Christoph Leuschner." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2018. http://d-nb.info/1160753547/34.

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30

Rodrigue, Jason Adam. "Woody Species Diversity, Forest and Site Productivity, Stumpage Value, and Carbon Sequestration of Forests on Mined Lands Reclaimed Prior to the Passage of the Surface Mining Control and Reclamation Act of 1977." Thesis, Virginia Tech, 2001. http://hdl.handle.net/10919/35629.

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The present state of forestry post mining land uses has prompted concern among researchers, landowners, and the public. Surface mines reclaimed to forests under the provision of the Surface Mining Control and Reclamation Act (SMCRA) may not achieve site productivity levels required by the law. Anecdotal evidence suggests that many pre-law reforested mined sites are growing productive forests. The purpose of this study was to characterize these forests and the mine soils in which they are growing, and use them to benchmark forest development on mined land. Using 14 mined and 8 non-mined sit
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31

Jacob, Mascha [Verfasser], Frank [Akademischer Betreuer] Thomas, and Christoph [Akademischer Betreuer] Leuschner. "Productivity and nutrient relations of trees in deciduous forests differing in tree species diversity / Mascha Jacob. Gutachter: Frank Thomas ; Christoph Leuschner. Betreuer: Frank Thomas." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2010. http://d-nb.info/1042638241/34.

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32

Van, Zyl Louis. "Stem form, height and volume models for teak in Tanzania." Thesis, Link to the online version, 2005. http://hdl.handle.net/10019/1282.

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33

Kavaliauskas, Darius. "Zarasų rajone 2005-2009 metais įveistų želdinių būklė." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2011. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2011~D_20110601_112353-99016.

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Magistro darbe tiriama 2005-2009 metais Zarasų rajone ne miško žemėje įveistų želdinių kokybė. Darbo objektas – Miško želdiniai įveisti privačioje žemėje Zarasų rajone 2005–2009 metais panaudojant ES struktūrinių fondų paramą (366,37 ha). Darbo tikslas – Nustatyti 2005–2009 metais želdinių įveistų privačioje ne miško žemėje būklę Zarasų rajone. Darbo metodai – Įveistų miško želdinių ir žėlinių vertinimas natūroje atliekamas atrankiniu metodu vadovaujantis Miško atkūrimo ir įveisimo nuostatuose patvirtinta miško želdinių ir žėlinių apskaitos bei vertinimo metodiką. Surinktų duomenų analiz
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34

Hilmers, Torben [Verfasser], Hans [Akademischer Betreuer] Pretzsch, Christian [Gutachter] Ammer, Hans [Gutachter] Pretzsch, and Rupert [Gutachter] Seidl. "Mixed mountain forests comprised of Fagus sylvatica, Picea abies and Abies alba: productivity, management and biodiversity / Torben Hilmers ; Gutachter: Christian Ammer, Hans Pretzsch, Rupert Seidl ; Betreuer: Hans Pretzsch." München : Universitätsbibliothek der TU München, 2020. http://d-nb.info/1220320994/34.

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35

Frost, Carol Margaret. "Spillover and species interactions across habitat edges between managed and natural forests." Thesis, University of Canterbury. Biological Sciences, 2013. http://hdl.handle.net/10092/8989.

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We are currently faced with the global challenge of conserving biological diversity while also increasing food production to meet the demands of a growing human population. Land-use change, primarily resulting from conversion to production land, is currently the leading cause of biodiversity loss. This occurs through habitat loss, fragmentation of remaining natural habitats, and resulting edge effects. Land-sparing and land-sharing approaches have been discussed as alternative ways to engineer landscapes to mitigate biodiversity loss while meeting production objectives. However, these represen
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36

Urrutia, Jalabert Rocio Beatriz. "Carbon dynamics and woody growth in Fitzroya cupressoides forests of southern Chile and their environmental correlates, from seasonal to decadal timescales." Thesis, University of Oxford, 2015. http://ora.ox.ac.uk/objects/uuid:d54905c7-9201-4e83-895f-f760e576a23b.

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Among the most compelling and least well-understood tree species growing in the temperate forests of southern South America is Fitzroya cupressoides, a high biomass species and the second longest-lived tree species in the world. This thesis quantified the main components of the carbon cycle in Fitzroya forests (i.e. net primary productivity (NPP) and soil respiration) and evaluated the environmental variables that are most related to them. The study was focused on medium-age and old-growth forests growing in the Coastal Range (Alerce Costero National Park, AC) and the Andean Cordillera (Alerce
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Gagné, Claude. "Tendance à long terme de la croissance de l'épinette noire (Picea mariana (Mill.) B.S.P.) en forêt boréale québécoise /." Thèse, Chicoutimi : Université du Québec à Chicoutimi, 2000. http://theses.uqac.ca.

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Walters, David K. "An examination of methods for localizing site index equations." Thesis, Virginia Polytechnic Institute and State University, 1987. http://hdl.handle.net/10919/80109.

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Equations for modeling the height-age pattern of forest trees or stands are typically developed for a given species in a specified region. In order to adequately model height-age patterns, the resulting equations are often quite complex. This study addresses the question of how to increase the accuracy and precision of the prediction of height-age relationships through the use of localized equations. Although the pattern of height-age relationships of loblolly pine plantations was studied, the methodology should prove valuable for other species as well. The Schumacher logarithm of height-rec
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Eliasson, Peter. "Impacts of climate change on carbon and nitrogen cycles in boreal forest ecosystems /." Uppsala : Swedish University of Agricultural Sciences, 2007. http://diss-epsilon.slu.se/archive/00001525/.

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Thesis (doctoral)--Swedish University of Agricultural Sciences, 2007.<br>Thesis documentation sheet inserted. Includes appendix of four papers and manuscripts, three co-authored with others. Includes bibliographical references. Also issued electronically via World Wide Web in PDF format; online version lacks appendix.
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Busby, Helen Clare. "Forest structure and function : identifying the factors which control forest productivity and biomass." Thesis, University of Leeds, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.440633.

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41

Addessi, Andrew David. "Urban Impacts to Forest Productivity, Soil Quality, and Canopy Structure in Forest Park, Portland, Oregon." PDXScholar, 2017. https://pdxscholar.library.pdx.edu/open_access_etds/3881.

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Land use practices and exposure to low impact disturbances associated with an urban environment can alter forest structure and function. Past and ongoing research in Forest Park, a large urban forest in Portland, Oregon, suggests that mature mixed Douglas-fir (Psuedotsuga meziesii)-hardwood stands in the more urban end of the park lack a shade-tolerant conifer understory composed of the late successional conifer tree species, such western hemlock (Tsuga heterophylla) and western red-cedar (Thuja plicata). 5-year plot remeasurement data that characterizes productivity and mortality patterns did
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42

Côté, Damien. "Mise en place d'une pessière à cladonie dans le domaine des forêts fermées d'épinette noire (Picea mariana) et potentiel pour la production forestière /." Thèse, Chicoutimi : Université du Québec à Chicoutimi, 2004. http://theses.uqac.ca.

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43

Ramantswana, Mufhumudzi Muedanyi. "A comparison of harvester productivity and stump volume waste in coppiced and planted eucalyptus grandis pulpwood compartments in the KwaZulu-Natal forestry region of South Africa." Thesis, Nelson Mandela Metropolitan University, 2012. http://hdl.handle.net/10948/d1019844.

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Over the past decade the South African forestry industry has gradually experienced the ramifications of labour scarcity, increases in labour costs, the effect of HIV and AIDS and increasing timber demand. Consequently, this has led to an increase in the mechanisation rate, especially in timber harvesting operations. Due to the labour challenges in South Africa, mechanised forestry equipment has increasingly been required to operate in complex forest conditions, such as coppiced compartments, where they have not operated before. It therefore occurs that harvesters are either used in certain cop
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Chaste, Émeline. "Risques passés et futurs de feux de forêts et leurs incidences sur la résilience de la forêt boréale de l’Est Canadien." Thesis, Paris Sciences et Lettres (ComUE), 2018. http://www.theses.fr/2018PSLEP047/document.

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Des changements de composition et de structure forestière sont projetés en réponse au climat futur potentiellement plus propice aux feux et au stress hydrique. Une réduction importante des stocks de carbone et de biomasse pourraient influencer considérablement l’industrie forestière et le réchauffement global. Malgré son importance écologique et socioéconomique, le devenir de la forêt est incertain car les impacts du changement climatique sur les processus écosystémiques et la biomasse sont encore mal compris. L’objectif principal est donc d’évaluer les effets potentiels du changement climatiq
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45

Siegel-Issem, Cristina Marie. "Forest Productivity as a Function of Root Growth Opportunity." Thesis, Virginia Tech, 2002. http://hdl.handle.net/10919/36323.

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Compaction caused by certain intensive forest management practices can reduce tree growth, but the causes of growth reduction are usually complex interactions between soil properties and tree species. We used a 7 by 7 factorial greenhouse experiment to create a matrix of bulk density ((Ï b)) and volumetric water content (θv) to determine soil compaction effects on seedling growth of: (i) ponderosa pine (Pinus ponderosa Dougl. ex Laws) grown on Dome and Cohasset soils from California; (ii) shortleaf pine (Pinus echinata) on a Clarksville soil from Missouri; and (iii) loblolly pine (Pinus taeda
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Carr, William Wade. "Restoring productivity on severely degraded forest soil in British Columbia." Thesis, University of British Columbia, 1985. http://hdl.handle.net/2429/25572.

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Forest road building and timber harvesting operations have been recognized as principal causes of forest soil degradation. These activities can result in accelerated soil erosion, excessive scarification, and/or increased soil density, which may adversely affect site productivity. A study of landing areas emphasize the deficiencies in current rehabilitation guidelines Increased soil density on both summer and winter landings was still evident at 30 cm and the soil nutrient quality was poor. Two field tests of a green fallow system on subsoil materials exposed by erosion and landing constructi
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Campos, Arce Jose J. "Environmental effects on the productivity of Eucalyptus camaldulensis, Leucaena leucocephala and Gliricidia sepium in Central America." Thesis, University of Oxford, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.253307.

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Li, Yanshu Zhang Daowei. "Essays on forestry products industry sawmill productivity and industrial timberland ownership /." Auburn, Ala., 2006. http://repo.lib.auburn.edu/2006%20Spring/doctoral/LI_YANSHU_17.pdf.

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Hazareh, Termeh Biological Earth &amp Environmental Sciences Faculty of Science UNSW. "The use of forest models to understand effects of elevated CO2 on aboveground forest productivity." Publisher:University of New South Wales. Biological, Earth & Environmental Sciences, 2008. http://handle.unsw.edu.au/1959.4/42790.

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Experiments show that forest net primary productivity (NPP) increases as atmospheric [CO2] increases. The aim of this thesis is to use process-based models to analyse the mechanisms underlying this response to atmospheric [CO2]. I used two models named MAESTRA, which is a complex model of canopy photosynthesis and MATE, a simpler model of forest carbon and water balance that is useful for long-term simulations. These models are applied to a Free-Air CO2 Enrichment (FACE) experiment on a sweetgum plantation at Oak Ridge, Tennessee, USA. In this experiment, trees growing at elevated CO2 (eCO2, 5
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Research, University of Arizona Laboratory of Tree-Ring. "Tree Rings and Forest Mensuration: How Can They Document Trends in Forest Health and Productivity?" Laboratory of Tree-Ring Research, University of Arizona (Tucson, AZ), 1986. http://hdl.handle.net/10150/303029.

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A workshop sponsored by the National Council of the Paper Industry for Air and Stream Improvement (NCASI) and the National Vegetation Survey - EPA/USFS Forest Response Program. / April 9-11, 1986, Laboratory of Tree Ring Research, University of Arizona, Tucson, Arizona
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