Zobrazeno 1 - 10
of 1 778
pro vyhledávání: '"Popa I"'
Publikováno v:
iForest - Biogeosciences and Forestry, Vol 10, Iss 1, Pp 554-560 (2017)
Defoliation is the main parameter for assessing tree crown conditions, and is the result of cumulative interactions among different types of stressors, including climate, air pollution, pests and diseases, and management systems. Here, we evaluated a
Externí odkaz:
https://doaj.org/article/d9dee151e3c640199b295558ef0556c1
Publikováno v:
Archives of Biological Sciences, Vol 58, Iss 1, Pp 25-29 (2006)
This paper presents six species of Oniscidea recorded until now in the Piatra Craiului National Park in Romania: Ligidium hypnorum, Mesoniscus graniger, Hyloniscus dacicus, Trichoniscus carpaticus, Trachelipus nodulosus, and Trachelipus difficilis ro
Externí odkaz:
https://doaj.org/article/86c1e5648fa74f19b999d8517a28bd40
Autor:
Popa I
Publikováno v:
Bucovina Forestieră, Vol 11, Iss 2, Pp 003-014 (2003)
This paper present an exemple of the applicability of dendroclimatological research methods in the study of forest ecosystems, using the dendrochronological series from Giumalau Secular Forest (GIUA - Norway spruce), Slatioara Secular Forest (SL
Externí odkaz:
https://doaj.org/article/b3c3329329a94f1982526b0e7fe1ab55
Autor:
Popa I
Publikováno v:
Bucovina Forestieră, Vol 11, Iss 1, Pp 017-030 (2003)
The present structure of natural forest ecosystems from the North of Eastern Carpathian, his heterogeneity, is the results of the historic disturbances. The wind damage represent the most important disturbance factor in these forests, with signif
Externí odkaz:
https://doaj.org/article/c5f2194e453a4b77932899f800b1179a
Publikováno v:
Bucovina Forestieră, Vol 10, Iss 1-2, Pp 013-023 (2002)
The knowledge of natural risk of occurrence of drought period represents a necessity for the foundation of afforests technologies and silvicultural operations. The idea of synthesis is in the book of H. Walter (1974) and is based on the using of cl
Externí odkaz:
https://doaj.org/article/48eff94ecf544f81a5f280641e97026f
Autor:
Popa I
Publikováno v:
Bucovina Forestieră, Vol 9, Iss 1-2, Pp 021-029 (2001)
A new method is used for evaluation of the stability of tree against the wind and to testing the theoretical stability models. The base principle of the uniform couple method is the relative identical environment conditions (site, stand and airfl
Externí odkaz:
https://doaj.org/article/b4ed7fb001244b789c73eaedd93c7782
Publikováno v:
Bucovina Forestieră, Vol 9, Iss 1-2, Pp 037-051 (2001)
Externí odkaz:
https://doaj.org/article/7a7d635d4c3e4b2bb0c28e4ca9e7fada
Publikováno v:
Bucovina Forestieră, Vol 8, Iss 2, Pp 076-082 (2000)
Externí odkaz:
https://doaj.org/article/c410a8d6559c430584b201e86dcb5d8b
Autor:
Popa I
Publikováno v:
Bucovina Forestieră, Vol 7, Iss 1-2, Pp 010-015 (1999)
This paper presents a likehood model for estimating the risk of windthrow by extreme value analysis. We use the Gumbel model for modelling the catastrophic windthrow at the European level through that we can estimate the probability to appear wi
Externí odkaz:
https://doaj.org/article/914cd4854856419d98822a90c3f8f0bc
Publikováno v:
Bucovina Forestieră, Vol 7, Iss 1-2, Pp 083-085 (1999)
Externí odkaz:
https://doaj.org/article/b88eb78201f54ef592512f8af3de61b0