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Dissertationen zum Thema „Tropical greenhouse“

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1

Wilson, Johan. "Estimating greenhouse gas emissionvia degassing and modelingtemperatureprofiles in tropical reservoirs." Thesis, Uppsala universitet, Luft-, vatten- och landskapslära, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-443007.

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The aim of this project was to quantify the greenhouse gas (GHG) emissions from the degassing process ofhydroelectrical reservoirs in tropical regions.Reservoirs represent 25 % of the total area of man-made freshwater systems and are a source of GHG emissions tothe atmosphere. There are plans to construct an additional ca 3700 medium and large hydropower dams with theaim to double the current global energy production by hydropower. The majority of these are planned to be constructed in tropical regions. By understanding the processes controlling GHG emissions from these hydropowerreservoirs, t
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2

Girkin, Nicholas T. "Tropical forest greenhouse gas emissions : root regulation of soil processes and fluxes." Thesis, University of Nottingham, 2018. http://eprints.nottingham.ac.uk/52949/.

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Tropical forested peatlands are a major carbon store and are a significant source of global carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O) emissions. While the role of environmental variables, including temperature and water table depth have been relatively well studied, uncertainty remains in the extent to which plant roots regulate greenhouse gas (GHG) fluxes and peat biogeochemistry. This study examined the role of roots, and root inputs of carbon and oxygen in regulating fluxes from peat under two dominant plant species, Campnosperma panamensis and Raphia taedigera, a broadle
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3

Cardoso, Abmael da Silva. "Greenhouse gas emissons and N2O mitigation in beef cattle production on tropical pasture /." Jaboticabal, 2016. http://hdl.handle.net/11449/135851.

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Orientador: Ana Cláudia Ruggieri<br>Banca: Carlos Eduardo Pellegrino Cerri<br>Banca: Patrícia Perondi Anchão de Oliveira<br>Banca: Ricardo Andrade Reis<br>Banca: Mara Cristina Pessoa da Cruz<br>Resumo: Metano (CH4) e óxido nitroso (N2O) são dois dos mais importantes gases de efeito estufa emitidos pela pecuária. Eles são produzidos pelas excretas dos animais e fertilizantes. No Brasil, a quantidade emitida destes gases e opções para mitigação foram pouco exploradas. Uma sequência de 4 experimentos foram realizados em campo (em duas estações chuvosas e duas secas, 106 dias de duração cada) com
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4

Nguyen, Dai Huong. "Influence of organic amendments on greenhouse gas emissions and N use efficiency in sub-tropical cropping systems." Thesis, Queensland University of Technology, 2015. https://eprints.qut.edu.au/91549/4/Dai_Huong_Nguyen_Thesis.pdf.

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This thesis investigated the impact of organic sources of nutrients on greenhouse gas emissions (carbon dioxide, nitrous oxide and methane), nitrogen use efficiency and biomass production in subtropical cropping soils. The study was conducted in two main soil types in subtropical ecosystems, sandy loam soil and clay soil, with a variety of organic materials from agro-industrial residues and crop residues. It is important for recycling of agro-industrial residues and agricultural residues and the mitigation of greenhouse gas emissions and nitrogen use efficiency.
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Liyanage, Anuga. "The impact of using urban derived compost on nitrogen use efficiency, greenhouse gas emissions and productivity from tropical cropping systems." Thesis, Queensland University of Technology, 2019. https://eprints.qut.edu.au/134463/2/Anuga%20Liyanage%20Thesis.pdf.

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This thesis is a multiyear study in Sri Lanka to evaluate the impact of using urban derived compost in combination with synthetic N fertiliser on nitrogen use efficiency, greenhouse gas emissions, and productivity from tropical cropping systems. The study demonstrated the high potential for N losses in low CEC tropical soils. However, the high relative cost of OA compared to synthetic N fertilisers requires substantial additional benefits above the value of the nutrients alone to make their use economical.
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6

Arias-Navarro, Cristina [Verfasser], Klaus [Akademischer Betreuer] Butterbach-Bahl, and Heinz [Akademischer Betreuer] Rennenberg. "Spatial variability of greenhouse gas (GHG) fluxes in tropical systems of East Africa: Effects of land use and topography." Freiburg : Universität, 2017. http://d-nb.info/1154385752/34.

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7

Abbruzzini, Thalita Fernanda. "The role of biochar on greenhouse gas offsets, improvement of soil attributes and nutrient use efficiency in tropical soils." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/11/11140/tde-30092015-115437/.

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The solid product of pyrolysis, called \"biochar\" (BC) in the context of improving soil properties as part of agronomic or environmental management, also got into focus as a climate mitigation strategy. The researcher investigated the effects of BC on soil attributes, nitrogen (N) use and GHG emissions. In Chapter 1 the origin of BC was commented. In Chapter 2, BC from sugarcane straw was characterized, and its priming on native SC was evaluated with the treatments: (T1) Soil; (T2) BC; (T3) Soil + BC 10 Mg ha-1; (T4) Soil + BC 20 Mg ha-1; and (T5) Soil + BC 50 Mg ha-1. In Chapter 3, it was ev
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8

Manca, Fabio. "Nitrate removal and nitrous oxide production of denitrifying woodchip bioreactors under subtropical and tropical climates." Thesis, Queensland University of Technology, 2021. https://eprints.qut.edu.au/211358/1/Fabio_Manca_Thesis.pdf.

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Bioreactors are a low-cost water treatment technology to mitigate nutrient runoff from agricultural areas. Bioreactors are woodchip-filled trenches installed in the soil, which convert nitrate to dinitrogen, a harmless gas in the atmosphere. Nitrate removal and greenhouse gas production of five on-farm bioreactors were monitored for the first time in Queensland, to reduce the nutrient runoff to the Great Barrier Reef. The bioreactors effectively removed nitrate, with negligible emissions of greenhouse gases. This research expanded the knowledge on bioreactors installed in Subtropical and Tropi
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9

D'AMELIO, MONICA T. S. "Estudo de gases de efeito estufa na Amazônia." reponame:Repositório Institucional do IPEN, 2006. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11404.

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Made available in DSpace on 2014-10-09T12:51:33Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T13:56:30Z (GMT). No. of bitstreams: 0<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>Dissertacao (Mestrado)<br>IPEN/D<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP<br>FAPESP:04/04148-3
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10

Batalha, Camila Delveaux Araujo. "Grazing strategies, animal performance and environmental sustainability in intensive pasture-based milk production systems." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/11/11139/tde-15032019-125835/.

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In Brazilian livestock, and its diverse ways of production, the management of grazing animals is known as the lowest return on investment on land use opportunities. Nevertheless, among different types of milk production systems, it is noted that the use of pasture grazing is a common feature between them. Thus, to achieve profitability and maintain system sustainability, the identification of the most adequate and efficient pasture management practices, can maximize production per cow and production per unit area. The low efficiency of this method of production, also classifies the national li
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Messinger, Jana [Verfasser], and Gregor [Akademischer Betreuer] Aas. "Potential of the lulo (Solanum quitoense) as new tropical fruit in Germany : Consumer acceptance and greenhouse cropping / Jana Messinger ; Betreuer: Gregor Aas." Bayreuth : Universität Bayreuth, 2019. http://d-nb.info/1181188164/34.

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12

De, Rosa Daniele. "Optimizing the use of organic amendments in sub-tropical vegetable cropping systems for improved environmental and agronomic outcomes." Thesis, Queensland University of Technology, 2017. https://eprints.qut.edu.au/112419/1/Daniele_De%20Rosa_Thesis.pdf.

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This study aimed to improve the efficiency of the use of organic amendments as a valid substitute for chemical nitrogen fertilizer in sub-tropical vegetable cropping systems. The results proved that predicting and accounting for the nitrogen release from organic amendments offers significant potential agronomic and environmental advantages by maintaining soil fertility and reducing the chemical nitrogen use.
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Fonsêca, Filho Valdir Martins da. "Produção, perda e ganho de calor em caprinos no ambiente tropical: um estudo do equilibrio térmico associado à emissão de CH4." Universidade Federal Rural do Semi-Árido, 2015. http://bdtd.ufersa.edu.br:80/tede/handle/tede/312.

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Made available in DSpace on 2016-08-15T20:27:57Z (GMT). No. of bitstreams: 1 ValdirMFF_TESE.pdf: 1925544 bytes, checksum: 2c6adf20cb05d72a5da15ba8f9a6a638 (MD5) Previous issue date: 2015-02-26<br>To study the thermal balance associated to methane emission in goats in a tropical environment, it was used nine Anglo Nubian females weighing in average 53.89 kg. The animals were observed during nine consecutive days from 08:00 to 17:00. An indirect open calorimetry system was used with a facial mask adjusted on the animal s muzzle and the volume of O2, CO2, CH4 and water vapor in the inspired and
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Fracetto, Felipe José Cury. "Estoque de carbono e nitrogênio e estrutura da comunidade de diazotróficas em solos de caatinga com plantio de mamona." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/11/11138/tde-23022010-091935/.

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Entre as principais oleaginosas eleitas para a produção de biodiesel, encontra-se a mamona (Ricinus communis L.), por possuir elevado teor de óleo, conhecido como óleo de rícino, extraído pela prensagem das sementes, contendo 90% de ácido graxo ricinoléico, o qual confere ao óleo suas características singulares, possibilitando ampla gama de utilização industrial. A produção brasileira de mamona concentra-se na caatinga baiana. A agricultura desta região, embora seja feita sem o uso de insumos agrícolas mantém uma produtividade regular. Com isso, tornou-se importante avaliar o efeito ambiental
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Pandeya, Hemant Raj. "Carbon and nitrogen flux dynamics in highly weathered tropical mango soils: Effect of leaf litter and nitrogen fertiliser." Thesis, Queensland University of Technology, 2022. https://eprints.qut.edu.au/232828/1/Hemant%20Raj_Pandeya_Thesis.pdf.

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This thesis is a comparative study of carbon and nitrogen flux dynamics following sole and combined application of mango leaf litter mulch and inorganic fertiliser in highly weathered tropical mango orchard soils. In doing so, the thesis investigated litter decomposition dynamics and litter carbon mass balance and provided baseline datasets of seasonal and annual reactive nitrogen losses (through hydrological and gaseous pathways) under the tropical environmental conditions of Northern Territory Australia.
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Congio, Guilhermo Francklin de Souza. "Rotational stocking management on elephant grass for dairy cows: grazing strategies, animal productivity, enteric methane and nitrous oxide emissions." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/11/11139/tde-18012019-174106/.

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Pasture-based systems are important milk suppliers to dairy industry and thereby will play relevant role to support the growing demand for food. However, this additional milk supply must be obtained through higher yields resulting from intensification of existing farming systems through strategies environmentally friendly and economically profitable towards sustainable intensification. The central hypothesis of this study was that simple grazing management strategies can improve the efficiency while reduce the key environmental issues of tropical pasture-based dairy systems. Two experiments we
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17

Müller, Anke Katrin [Verfasser], Edzo [Akademischer Betreuer] Veldkamp, Marife [Akademischer Betreuer] Corre, and Klaus [Akademischer Betreuer] Butterbach-Bahl. "Soil greenhouse gas fluxes under elevated nutrient input along an elevation gradient of tropical montane forests in southern Ecuador / Anke Katrin Müller. Gutachter: Edzo Veldkamp ; Marife Corre ; Klaus Butterbach-Bahl. Betreuer: Edzo Veldkamp." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2014. http://d-nb.info/1060246465/34.

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18

Cotovicz, Junior Luiz Carlos. "Concentrações e trocas atmosféricas de dióxido de carbono (CO2) e metano (CH4) em um estuário tropical eutrofizado (Baía de Guanabara, RJ, Brasil)." Niterói, 2016. https://app.uff.br/riuff/handle/1/2254.

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Submitted by Biblioteca de Pós-Graduação em Geoquímica BGQ (bgq@ndc.uff.br) on 2016-09-21T18:16:41Z No. of bitstreams: 1 Tese de Doutorado Luiz C. Cotovicz Jr. Versão Uff.pdf: 4982585 bytes, checksum: 7a9441ed4aef2fa1871fcee50e7e53c4 (MD5)<br>Made available in DSpace on 2016-09-21T18:16:41Z (GMT). No. of bitstreams: 1 Tese de Doutorado Luiz C. Cotovicz Jr. Versão Uff.pdf: 4982585 bytes, checksum: 7a9441ed4aef2fa1871fcee50e7e53c4 (MD5)<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>Universidade Federal Fluminense. Instituto de Química. Programa de Pós-Graduação em Geociê
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19

Junior, Elizio Ferreira Frade. "Atributos químicos, microbiológicos e emissões de CO2, CH4 e N2O do solo em experimento de corte e queima controlada na Amazônia Ocidental." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/11/11140/tde-21032018-110158/.

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Nas últimas décadas as mudanças climáticas foram evidenciadas pelo aumento da temperatura global, diminuição dos estoques de carbono terrestres, associados ao aumento nas emissões de gases de efeito estufa (GEE). A floresta Amazônica é o maior bioma tropical do mundo e desenvolve serviços ambientais estratégicos no planeta. Entretanto, há mais de duas décadas que o desmatamento na Amazônia impulsiona as emissões globais de GEE, diminuindo o armazenamento de carbono do solo com alterações na dinâmica nas populações microbianas e nos ciclos biogeoquimicos pela mudança de uso da terra. O objetivo
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20

Cotovicz, Junior Luiz Carlos. "Concentrations et échanges atmosphériques de gaz carbonique (CO2) et de méthane (CH4) dans un estuaire tropical eutrophe (Baie de Guanabara, RJ, Brésil)." Thesis, Bordeaux, 2016. http://www.theses.fr/2016BORD0034/document.

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Les taux de production, transformation, émission et sédimentation de carbone à l’interface continent-océan sont significatifs à l’échelle globale, mais encore sujets à de fortes incertitudes en particulier dans les régions tropicales. De même, l’augmentation des concentrations atmosphériques de dioxyde de carbone (CO2) et de méthane (CH4), oblige la communauté scientifique à développer des méthodes pour quantifier les concentrations et les flux dans la zone côtière. Cette thèse se présente sous forme de 5 chapitres. Les chapitres 1 et 2 présentent une introduction générale et l’état de l’art s
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21

Harmanto. "Evaluation net greenhouses for tomato production in tropics." [S.l.] : [s.n.], 2006. http://deposit.ddb.de/cgi-bin/dokserv?idn=979810124.

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22

Koks, Josephus [Verfasser], Edzo [Akademischer Betreuer] Veldkamp, Alexander [Gutachter] Knohl, and Heinz [Gutachter] Flessa. "Tropical forest conversion to rubber and oil palm plantations: landscape-scale and inter-annual variability of soil greenhouse gas (GHG) fluxes and the contribution of tree-stem emissions to the soil GHG budget in Jambi province, Sumatra, Indonesia / Josephus Koks ; Gutachter: Alexander Knohl, Heinz Flessa ; Betreuer: Edzo Veldkamp." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2020. http://d-nb.info/1213096316/34.

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23

Skoglund, Björn. "Diffusive gas fluxes in neotropical rainforest streams." Thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-105692.

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Rainforests are of great importance to global carbon cycling, but the importance of deforestation and change in land use is poorly understood due to a lack of studies quantifying the difference in carbon fluxes between original rainforest and agricultural land. Furthermore, the aquatic outgassing of neotropical systems have been proven to have greater impact on global carbon cycling than previously anticipated (Richey et al 2002).In this study we investigated the aquatic concentration and daily diffusive gas flux of CO2 and CH4 from 4 pristine sites and 4 impacted sites, respectively, in 4 str
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24

Mutwiwa, Urbanus Ndungwa. "Effects of different cooling methods on microclimate and plant growth in greenhouses in the tropics." Hannover Inst. für Biologische Produktionssysteme, 2007. http://d-nb.info/999971638/34.

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25

Mutwiwa, Urbanus Ndungwa [Verfasser]. "Effects of different cooling methods on microclimate and plant growth in greenhouses in the tropics / Urbanus Ndungwa Mutwiwa." Hannover : Inst. für Biologische Produktionssysteme, 2007. http://d-nb.info/999971638/34.

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26

Solis, Michael Jay L. [Verfasser]. "Leaf-inhabiting fungal endophytes of F. benjamina, F. elastica, F. religiosa from Philippine tropical forests and German botanical greenhouses : assessment of diversity, community composition and bioprospecting perspective / Michael Jay L. Solis." Greifswald : Universitätsbibliothek Greifswald, 2016. http://d-nb.info/1098171217/34.

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27

Moura, José Mauro Sousa de. "Fontes de metano em florestas tropicais da Amazônia: Análise da composição isotópica e uso de técnicas indiretas para determinação de balanços gasosos nesses ecossistemas." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/64/64135/tde-29092010-154737/.

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Recentes publicações chamaram a atenção para o papel das florestas tropicais sobre o balanço global de alguns gases de efeito estufa. A suspeita de que estas florestas estariam atuando como sorvedouros de CO2 acumulando uma enorme quantidade de carbono em sua biomassa, ou que estas seriam capazes de emitir CH4 diretamente de folhas vivas e da serapilheira sobre condições aeróbicas, motivou a realização de vários estudos nas áreas de floresta tropical, especialmente na Amazônia. O presente estudo pretende determinar o papel das florestas de terrafirme da Amazônia no balanço regional de CH4 atra
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Kumar, Prabhat. "Management of sweetpotato Whitefly Bemisia tabaci Gennadius (Homoptera: Aleyrodidae) on tomato using biorational pesticides (Neem, Abamectin and Spinosad) and UV-absorbing nets and films as greenhouse cover in the humid tropics." [S.l.] : [s.n.], 2005. http://deposit.ddb.de/cgi-bin/dokserv?idn=979809355.

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Lyimo, Liberatus Dominick. "Carbon sequestration processes in tropical seagrass beds." Doctoral thesis, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-128201.

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Seagrass meadows may play a substantial role in climate change mitigation as they are capable to sequester and store substantial amounts of anthropogenic carbon in plant biomass and, more importantly, in their underlying sediments. In this PhD thesis, the carbon-burial potential was assessed by quantifying the amount of organic carbon stored in different seagrass meadows, each dominated by one of the four major seagrass species in the Western Indian Ocean region. Impacts of anthropogenic disturbances on biomass carbon allocation, greenhouse gas emission (methane and nitrous oxide) and producti
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Müller, Anke Katrin. "Soil greenhouse gas fluxes under elevated nutrient input along an elevation gradient of tropical montane forests in southern Ecuador." Doctoral thesis, 2014. http://hdl.handle.net/11858/00-1735-0000-0023-9920-3.

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Los suelos de los bosques tropicales desempeñan un papel importante en el clima de la Tierra mediante el intercambio con la atmosfera de grandes cantidades de gases de efecto invernadero (GEI). Sin embargo, esta importante función podría ser alterada por las actividades humanas causando el aumento en la deposición de nutrientes en los ecosistemas terrestres, especialmente en las regiones tropicales. Las causas de cómo el incremento de las cantidades de nutrientes está afectando los flujos de suelo de los GEI de los bosques tropicales es relativamente poco conocida, por ello los monitoreos de n
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Jenberu, Getachew Agegnehu. "Biochar, compost and biochar-compost: effects on crop performance, soil quality and greenhouse gas emissions in tropical agricultural soils." Thesis, 2017. https://researchonline.jcu.edu.au/51228/1/51228-jenberu-2017-thesis.pdf.

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Background and aims: Chapter 1 highlights the introduction and summarizes the literature search in the area of the study. Soil fertility depletion, declining agricultural productivity because of reduction of soil organic matter (SOM), nutrient imbalance, and climate change due to increased greenhouse gases (GHG) emissions, are major constraints in most tropical agricultural soils. The aims of my PhD study were to: 1) investigate and compare the effects of different soil fertility treatments in relation to biochar, compost, and their mixture on soil physicochemical properties and soil fertility
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Quebbeman, Andrew W. "The big effects of small-scale environmental variation: Exploring spatial patterns of tree community composition and greenhouse gas production in a tropical forest." Thesis, 2021. https://doi.org/10.7916/d8-t06p-zn86.

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Tropical forests represent major uncertainties in climate models and have the potential to act as both net carbon sources and sinks in the future. Projections that hurricanes will be an increasingly powerful disturbance in many tropical forests further complicate our ability to predict how these ecosystems will respond to climate change. By understanding how environmental variation at small spatial scales affects ecosystem processes shaping present-day forests, it may be possible to improve our predictions for how these forests will change in the future. This dissertation consists of three cha
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Koks, Josephus. "Tropical forest conversion to rubber and oil palm plantations: landscape-scale and inter-annual variability of soil greenhouse gas (GHG) fluxes and the contribution of tree-stem emissions to the soil GHG budget in Jambi province, Sumatra, Indonesia." Doctoral thesis, 2019. http://hdl.handle.net/21.11130/00-1735-0000-0005-13F8-E.

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34

[Verfasser], Harmanto. "Evaluation net greenhouses for tomato production in tropics / von Harmanto." 2006. http://d-nb.info/979810124/34.

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35

Iddris, Najeeb Al-Amin. "Trace gas fluxes from soils and tree stems of rainforests and cacao agroforests in the Congo Basin, Cameroon." Doctoral thesis, 2020. http://hdl.handle.net/21.11130/00-1735-0000-0005-13D6-4.

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36

Acharya, Sumedh. "The Role Of Water Vapor In The Clear-sky Greenhouse Effect In The Tropics." Thesis, 2004. https://etd.iisc.ac.in/handle/2005/1157.

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Acharya, Sumedh. "The Role Of Water Vapor In The Clear-sky Greenhouse Effect In The Tropics." Thesis, 2004. http://etd.iisc.ernet.in/handle/2005/1157.

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38

Kumar, Prabhat [Verfasser]. "Management of sweetpotato Whitefly Bemisia tabaci Gennadius (Homoptera: Aleyrodidae) on tomato using biorational pesticides (Neem, Abamectin and Spinosad) and UV-absorbing nets and films as greenhouse cover in the humid tropics / von Prabhat Kumar." 2005. http://d-nb.info/979809355/34.

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39

Fimpa, Tuwizana Twison. "Perspectives juridiques quant à l'implantation du programme REDD+ dans les pays en développement: développement durable et participation locale." Thèse, 2017. http://hdl.handle.net/1866/19980.

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