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Title: STOCKS OF CHEMICAL ELEMENTS IN LITTERFALL IN BEECH (FAGUS SYLVATICA L.) FORESTS IN WESTERN STARA PLANINA
STOCKS OF CHEMICAL ELEMENTS IN LITTERFALL IN BEECH (FAGUS SYLVATICA L.) FORESTS IN WESTERN STARA PLANINA

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Violeta Dimitrova; Sonya Damyanova; Dimitar Dimitrov
10.5593/sgem2023/3.1/s14.40
10.5593/sgem2023/3.1
1314-2704
978-619-7603-58-3
English
23
3.1
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE 
•    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
Forest Ecosystems
The litterfall (fallen leaves, flowers, fruits and twigs) in the forests represents part of dead plant mass. The quantity and quality of litterfall in forests plays an important role in their state. Through it, a large part of chemical elements is returned to the cycle of the ecosystem, it is an essential carbon depot, it affects regeneration, soil moisture, fertility, composition, fauna and flora.
The study presents data on stocks of chemical elements in annual literfall of Western Stara planina. The sample plots are located on the territory of the Petrohan LTER site.
The average total quantity of litterfall was 481.17 g.m-2. The leaves were 54%, cupulas were 23%, seed were 21% and the fraction of branches had the smallest share - from 2%.
The total annual amount of elements returned to the beech forest ecosystem with leaves was 1569.42 kg.ha-1, of which macroelements are 1560.98 kg.ha-1, and microelements - 8.46 kg.ha-1. The predominant elements were: carbon - about 80%, hydrogen - about 13%, nitrogen - 3% and calcium - 2%. The remaining elements were represented in very small amounts – less than 1%. Microelements were presented in the following sequence: Mg >Mn >Fe >Zn >Pb >Cu. 790.88 kg.ha-1 elements were returned annually through the seeds and 582.21 kg.ha-1 elements were annually returned through the cupules.
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The studies were funded by the projects: Upgrading distributed scientific infrastructure "Bulgarian Network for Long-Term Ecosystem Research (LTER-BG)" - 22-23 and "Structure and ecological functions of dead biomass in beech forests (Fagus sylvatica L.) in Western Bulgaria, КP – 06-Н54/1, 2021, Ministry of Education and Science, Scientific Researches Fund
conference
https://doi.org/10.5593/sgem2023/3.1/s14.40
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Proceedings of 23rd International Multidisciplinary Scientific GeoConference SGEM 2023
23rd International Multidisciplinary Scientific GeoConference SGEM 2023, 03 - 09 July, 2023
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference SGEM
SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Russian Acad Arts; Turkish Acad Sci.
329-334
03 - 09 July, 2023
website
9163
litterfall, chemical elements, common beech