scholarly journals The role of soil nutrient ratios in coffee quality: Their influence on bean size and cup quality in the natural coffee forest ecosystems of Ethiopia

2019 ◽  
Vol 14 (35) ◽  
pp. 2090-2103
Author(s):  
Yadessa Abebe ◽  
Burkhardt Juergen ◽  
Bekele Endashaw ◽  
Hundera Kitessa ◽  
Goldbach Heiner
Keyword(s):  
Forest Ecosystems ◽  
Soil Nutrient ◽  
Nutrient Ratios ◽  
Bean Size ◽  
Cup Quality

Agronomic and Processing Factors Affecting Coffee Quality

1998 ◽  
Vol 27 (3) ◽  
pp. 163-166 ◽  
Author(s):  
J.M. Njoroge
Keyword(s):  
Factors Affecting ◽  
Size And Shape ◽  
Visual Scoring ◽  
Wide Range ◽  
Processing Factors ◽  
Bean Size ◽  
General Standard ◽  
Cup Quality

Coffee quality is a parameter influenced by a wide range of factors. The criteria used to measure quality include raw bean size and shape as well as colour; roast bean appearance is measured by visual scoring. Cup quality is determined by organoleptic means. Samples are submitted to professional coffee tasters who assess body, acidity, flavour and general standard while off-flavours are distinguished. Owing to the role of quality in the pricing of coffee, it is important that coffee should be handled carefully at the farm and factory level. At all these levels, the recommended procedures of handling coffee should be adhered to, in order to obtain top quality coffee. Some of these procedures are discussed in the paper.

scholarly journals Availability of plant nutrients and pollutants in the young soils of Surtsey compared to the older Heimaey and Elliðaey volcanic islands

2020 ◽  
Vol 14 ◽  
pp. 91-98
Author(s):  
Bjarni D. Sigurdsson ◽  
Niki I. W. Leblans
Keyword(s):  
Nutrient Availability ◽  
Soil Nutrient ◽  
Nutrient Ratios ◽  
P Availability ◽  
Arctic Ecosystems ◽  
Limiting Nutrient ◽  
Soil Age ◽  
Volcanic Islands ◽  
Seabird Colonies

Surtsey and the older islands in the Vestmannaeyjar archipelago offer a unique possibility to study how sub-Arctic ecosystems develop from unvegetated mineral substrate that lacks soil cover to grasslands with thick Brown Andosol soils. The present study was carried out on Surtsey, Heimaey and Elliðaey in 2013 and involved an incubation of resin membranes in the 0-10 cm topsoil layer in different ecosystems, which were either inside or outside seabird colonies. We compared the effects of seabird presence on soil nutrient availability as well as the importance of time for soil development (at least ca.1600 years vs. 50 years). Further we looked for build-up of Cd and Pb within the seabird colonies. Seabird presence enhanced the availability of most nutrients (N, P, K, Mg, Ca, S, Fe, Mn and Zn) except B and Cu, irrespective of the age of the islands. Soil age was also a significant factor for nutrient availability for all macro- and micronutrients except B. Nutrient ratios indicated that N was the most limiting nutrient in all ecosystems, except in the thicker tephra soils on Surtsey where low P availability may lead to co-limitation. The role of P in ecosystem function on Surtesy warrants a futher study. No accumulation of Cd and Pb was found within the seabird colonies.

scholarly journals Geospatial technology perspectives for mining vis-a-vis sustainable forest ecosystems

2017 ◽  
Vol 11 (1) ◽  
pp. 219-238 ◽  
Author(s):  
Laxmi Goparaju ◽  
P. Rama Chandra Prasad ◽  
Firoz Ahmad
Keyword(s):  
Forest Ecosystems ◽  
Anthropogenic Activities ◽  
Biogeochemical Cycles ◽  
Mining Activities ◽  
Forest Environment ◽  
Mining Operations ◽  
Geospatial Technology ◽  
The Status ◽  
The Impact

Abstract Forests, the backbone of biogeochemical cycles and life supporting systems, are under severe pressure due to varied anthropogenic activities. Mining activities are one among the major reasons for forest destruction questioning the survivability and sustainability of flora and fauna existing in that area. Thus, monitoring and managing the impact of mining activities on natural resources at regular intervals is necessary to check the status of their depleted conditions, and to take up restoration and conservative measurements. Geospatial technology provides means to identify the impact of different mining operations on forest ecosystems and helps in proposing initiatives for safeguarding the forest environment. In this context, the present study highlights the problems related to mining in forest ecosystems and elucidates how geospatial technology can be employed at various stages of mining activities to achieve a sustainable forest ecosystem. The study collates information from various sources and highlights the role of geospatial technology in mining industries and reclamation process.

The Role of Ectomycorrhizal Symbiosis in the Resistance of Forests to Water Stress

2000 ◽  
Vol 29 (1) ◽  
pp. 63-69 ◽  
Author(s):  
Jean Garbaye
Keyword(s):  
Water Stress ◽  
Sustainable Management ◽  
Fine Roots ◽  
Forest Ecosystems ◽  
Water Status ◽  
Forest Trees ◽  
Direct Effects ◽  
Ectomycorrhizal Symbiosis ◽  
Protection Mechanisms

Forest trees live in enforced symbiosis with specialized fungi that form composite organs (ectomycorrhizas) with fine roots. This paper examines how this association contributes to the water status of trees and how it plays a major role in the protection mechanisms by which trees and forest stands resist drought-induced water stress. It shows how ectomycorrhizal symbiosis has both direct effects (at the uptake level) and indirect effects (at the regulation level) on the water status of trees. The facts presented are discussed in terms of forest adaptation to changing environmental conditions and the practical consequences for the sustainable management of forest ecosystems.

Role of nitrogen in carbon mitigation in forest ecosystems

2011 ◽  
Vol 3 (5) ◽  
pp. 303-310 ◽  
Author(s):  
Catriona A Macdonald ◽  
Ian C Anderson ◽  
Richard D Bardgett ◽  
Brajesh K Singh
Keyword(s):  
Forest Ecosystems ◽  
Carbon Mitigation

scholarly journals Bisoniana XXI. Food and role of the European bison in forest ecosystems

1967 ◽  
Vol 12 ◽  
pp. 367-376 ◽  
Author(s):  
Stanisław Borowski ◽  
Zbigniew Krasiński ◽  
Lech Miłkowski
Keyword(s):  
Forest Ecosystems ◽  
European Bison

scholarly journals The Role of Phytodiversity in Riparian Alder Forests in Supporting the Provision of Ecosystem Services

2016 ◽  
Vol 13 (2) ◽  
pp. 47-51
Author(s):  
Patrícia Mariničová ◽  
Pavol Eliáš
Keyword(s):  
Ecosystem Services ◽  
Species Diversity ◽  
Medicinal Plants ◽  
Functional Groups ◽  
Functional Diversity ◽  
Woody Plants ◽  
Forest Ecosystems ◽  
Therapeutic Potential ◽  
Human Society

Abstract Nature, ecosystems and biodiversity provide human society with many benefits known as ecosystem services. Functional diversity is an important aspect of biodiversity. In this paper, we applied inductive approach to the identification, mapping and evaluation of ecosystem services of the Aegopodio-Alnetum glutinosae community in Tribeč Mts. The results from 2015 show that the alder floodplain forest represents one of the most productive forest ecosystems with seasonal maximum production of 59.03 g m−2, species diversity of N0 = 40 and functional diversity of FD = 10. The forage potential of this community is medium, the melliferous potential is high and the therapeutic potential was estimated as extremely rich in medicinal plants. From the functional groups for providing ecosystem services, woody plants and hemicryptophytes play the most significant role.

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