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Vázání uhlíku ve stínících dřevinách na agrolesnických kávových plantážích v Nikaragui
Hrubešová, Karolína
The bachelor's thesis presents the results of calculating the amount of sequestered carbon in shading trees and coffee plants on three selected agroforestry coffee plantations in the department of Matagalpa, which are located at an altitude from 880 m above sea level to 1400 m above sea level. The territory of the selected plantations belongs to the ecosystem of tropical montane cloud forest. The highest stock of carbon in the above-ground and underground biomass of shading trees was at the Selva Negra plantation, located at an altitude of 880 – 1,300 m above sea level, it was 48,7 ± 1,5 Mg ha-1, in addition coffee plants was 2,5 ± 0,22 Mg ha-1. At the La Dalia plantation at an altitude of 950 – 1,050 m above sea level, the above-ground and underground carbon stock in shade trees was 33,36 ± 1,94 Mg ha-1 and 2,3 ± 0,5 Mg ha-1 in the coffee plant. The total carbon stock from aboveground and belowground biomass of shade trees at the La Esperanza plantation, at an altitude of 1,350 – 1,400 m above sea level, was 28,8 ± 2,6 Mg ha-1. In coffee plants, the total supply was 1,9 ± 0,02 Mg ha-1. Funding options were proposed from the information found. If the studied plantations were interested in fi-nancial gain from traded carbon, they could each individually be entitled to a one time contribution: USD 2,656.47 (La Eperanza), USD 4,430.34 (Selva Negra), USD 3,085.66 (La Dalia).
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Vliv zástinu na úrodu kávovníku robusta
Klimková, Marie
The coffee plant is one of the most important market crops. The growing demand for coffee has prompted efforts to increase yields and coffee production. New coffee varieties and new growing systems have begun to emerge. Traditional shade grown coffee agroforestry systems have begun to push out modern monoculture plantations, which are unsustainable. Agroforestry coffee systems provide a number of ecosystem services that might help improve farmers' livelihoods, sustain production of crops and conserve biodiversity. This work was conducted to evaluate the effect of shade on Robusta coffee yields. To achieve this, productivity and berries quality of coffee plants growing under shade trees were compared with those of coffee plants growing under direct sun light. The results show that shade-grown coffee has comparable yields with monoculture plantations.
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Káva a její účinky na lidský organismus
Kučerová, Marcela
The aim of this bachelor thesis is to focus on the various positive and negative effects on the human body associated with coffee consumption. First, I will inform you on how coffee is grown, processed and what is its chemical composition. Then I will give the information obtained about the positive and negative effect of coffee on the human body. The conclusion of the thesis will be devoted to news of double-quality coffee products, and about Fairtrade.
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Pěstování a význam vybraných rodů Coffea
Janáčková, Markéta
This bachelor’s thesis describes the cultivation and the importance of the prominent and utilized Coffea genus. The literary overview is focused on the history of coffee cultivation, the differences between the most used species and varieties, describes possibilities and requirements of its cultivation, and shows the most important producers and areas where the coffee plant is cultivated. It explains the differences among methods of harvesting and methods of post-harvest treatment. This thesis also describes export, roasting, packaging, and taste profile options most suitable for various consumers.
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Vliv rozdílných typů zástinu na vybrané vlastnosti plantáží Coffea arabica v okolí města Villa Rica, Peru
Ehrenbergerová, Lenka
Coffee belongs to very important crops in the world and it is traditionally grown in agroforestry systems. During the five years the four coffee plantations with different type of shading were studied in the foothills of the Peruvian Andes. The highest amount of carbon was found in the plantation shaded dominantly by Eucalyptus spp., followed by Pinus spp., Inga spp. and non-shaded site. The microclimatic characteristic measurement shows that shading reduces the mean air and soil temperatures and increases the air humidity, compared to the non-shaded site. It was recorded drier soil conditions at the shaded site. At all plantations, coffee variety and age had a significant effect on Coffee Leaf Rust incidence. The value of the timber stored in shade trees varied significantly. There were different results for different shade trees species (from 2% to 72% of the annual income from coffee production).
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Evaluation of the International Coffee Trade
Čápka, Michal ; Regnerová, Olga (advisor) ; Zdeněk, Zdeněk (referee)
The diploma thesis analyses the world coffee market, introducing the largest importers, exporters and producers of this commodity. The thesis also examines, for example, selected countries own consumption and touches upon coffee consumption in the Czech Republic just for illustration. The thesis also includes a brief description of some major world organisations that are closely associated with coffee. The thesis offers a detailed analysis of the 2001-2004 crisis and its impacts on developing countries, whose economies depend on coffee trade, and on the global coffee market. The last section of the diploma thesis analyses three of the producing countries that hold a major position in the coffee market; this includes the basic information about these countries and their economies, cultivated areas and climate conditions. The section is concluded by an evaluation of their production and the shares of their own consumption and exports.
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