Results 21 to 30 of about 99,819 (353)
Frontiers in Ecology and Evolution, 2022 Understanding and forecasting species’ response to climate change is a critical need for future conservation and management. Two expansion hypotheses, the glacial expansion versus the interglacial expansion, have been proposed to interpret how cold ...
Yi-Zhen Shao +8 more
doaj +1 more source
Climate-growth relationships at different stem heights in silver fir and Norway spruce [PDF]
, 2012 We investigated the effect of climate on variations in annual ring-area increment along the stem of dominant silver fir (Abies alba Mill.) and Norway spruce (Picea abies (L.) Karst.) trees in the Black Forest, southwestern Germany, to test the hypothesis
Bouriaud, O. +4 more
core +1 more source
Une action collective analysée par ses acteurs : une association d’irrigants en Tunisie [PDF]
Natures Sciences Sociétés, 2015 En Tunisie, les études sur les associations d’irrigants ont souvent diagnostiqué des performances médiocres, mais n’ont proposé que des analyses incomplètes des facteurs influençant ces performances.
Ben Mustapha Azza +3 more
doaj +1 more source
Forestry: An International Journal of Forest Research, 2019 Mixed mountain forests of European beech (Fagus sylvatica L.), Norway spruce (Picea abies (L.) Karst), and silver fir (Abies alba Mill.) cover a total area of more than 10 million hectares in Europe.
T. Hilmers +20 more
semanticscholar +1 more source
Recent fir hybridization research in the light of Czech-American cooperation
Journal of Forest Science, 2009 The project is based on control pollination of different fir species in the sense of interspecific hybridization. The aim of this procedure is a new bred material for specific needs of forestry and Christmas tree production.
J. Kobliha, J. Stejskal
doaj +1 more source
Turkish Journal of Forestry, 2020 Soil arthropods (Arthropoda) in forest ecosystems play an important role as primary and secondary consumers in the process of litter fragmentation and decomposition.
Meriç Çakır, Muhammet Ali Özata
doaj +1 more source
Effects of simultaneous ozone and nitrogen exposure on two tree species : Fagus sylvatica (L.) and Picea abies (L.) Karst. [PDF]
, 2005 Tropospheric ozone (O3) and nitrogen deposition (N) are considered as two of the most important anthropogenic pollution factors for temperate forests today.
Thomas, Vera F. D.
core +1 more source
The Potential of Liming to Improve Drought Tolerance of Norway Spruce [Picea abies (L.) Karst.]
Frontiers in Plant Science, 2019 In response to a wide-spread decline in forest vitality associated with acid rain in the 1980s, liming of soils has been implemented in many federal states in Germany to buffer further acid deposition and improve availability of nutrients such as calcium
Martin Kohler +7 more
semanticscholar +1 more source
Recent results of Czech-American fir hybridization research
Journal of Forest Science, 2013 Fraser fir (Abies fraseri) Christmas tree plantations in North Carolina are infested by root rot caused by Phytophthora cinnamomi. This disease kills almost 100% of Fraser fir material and leaves the soil permanently infested.
J. Kobliha +3 more
doaj +1 more source
Somatic Embryogenesis in Selected Conifer Trees Pinus nigra Arn. and Abies Hybrids
Frontiers in Plant Science, 2019 Somatic embryogenesis was achieved in the conifers Pinus nigra Arn. and in the hybrids Abies alba ×A. cephalonica and Abies alba ×A. numidica. For initiation of embryogenic tissue in P.
T. Salaj +3 more
semanticscholar +1 more source