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Projects / Programmes source: ARIS

Interaction effect of biotic and abiotic stress factors to development of common oak

Research activity

Code Science Field Subfield
4.01.01  Biotechnical sciences  Forestry, wood and paper technology  Forest - forestry 

Code Science Field
B410  Biomedical sciences  Soil science, agricultural hydrology 
B270  Biomedical sciences  Plant ecology 
Keywords
penduculate oak, lowland forests, forest decline, crown defoliation, groundwater table and quality, water potential, Slovenia
Evaluation (rules)
source: COBISS
Researchers (10)
no. Code Name and surname Research area Role Period No. of publicationsNo. of publications
1.  02085  PhD Franc Batič  Plant production  Researcher  1997 - 1999  817 
2.  06455  MSc Franc Ferlin  Forestry, wood and paper technology  Researcher  1997 - 1999  122 
3.  07948  PhD Dušan Jurc  Forestry, wood and paper technology  Researcher  1997 - 1999  669 
4.  02491  PhD Maja Jurc  Forestry, wood and paper technology  Researcher  1997 - 1999  564 
5.  17335  Nina Rotar    Researcher  1998 - 1999 
6.  17336  Matej Rupel    Researcher  1997 - 1999  72 
7.  10264  PhD Primož Simončič  Forestry, wood and paper technology  Head  1999  703 
8.  01268  MSc Igor Smolej  Forestry, wood and paper technology  Researcher  1997 - 1999  147 
9.  17331  Magda Špenko    Researcher  1997 - 1999 
10.  02492  Mihej Urbančič  Forestry, wood and paper technology  Researcher  1997 - 1999  252 
Organisations (1)
no. Code Research organisation City Registration number No. of publicationsNo. of publications
1.  0404  Slovenian Forestry Institute  Ljubljana  5051673000  12,076 
Abstract
The process of oak decline, typical in the last century has periodically or occasionally reappeared in most of European countries. Several theories are trying to explaining the decline as the combined effects of several factors: primary factors which should be taken into consideration are abiotic and secondary ones antropogenic and biotic factors. If the reason for the decline of forests in the 70’s and 80’s was air pollution, the researches are not sure about the primary causes of recent »new age« forest decline, where the symptoms are similar to those in air pollution, but geographical range of decline is much wider. There is not only single factor causing the decline of oaks. The complex of interactions among factors is specific to the environment; from the pathogenic point of view it is very difficult to insulate one specific cause when climatic stress, industrial pollution and management mistakes from the past are present. It is important to define the main factor in every case and study the physiology of weakening process. The decline of oaks in Slovenia, especially of penduculate oak (Quercus robur L.), is most evident in lowland forests the north-east of Slovenia. The most likely reason could be dryer climate, unfavourable precipitation distribution and hydromelioriation. Especially older and mature oaks are in worse condition what confirmed an annual crown defoliation inventory on permanent research plots in wider area of Murska šuma forest complex and over Slovenia. In this study we would like to study penduculate oak stand in Murska šuma forest complex in the north-east of Slovenia. There is a urgent need to evaluate the degree of water stress, interaction relation between water table - forest soil - tree, and to define the main factor in the process of oak decline in this region. We would also study site conditions, phytopathology and management history of oak forests in the Murska šuma forest complex.
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