Ecosystem Carbon Stocks and Their Annual Sequestration Rate in Mature Forest Stands on the Mineral Soils of Estonia

Mature forest ecosystems are the most considerable reservoir of organic carbon (OC) among terrestrial ecosystems. The effect of soil type on aboveground OC stocks and their annual increases (AI) of overstorey tree, understorey tree and ground vegetation layers in Estonian forest phytocoenoses with m...

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Main Authors: Raimo Kõlli, Karin Kauer, Tõnu Tõnutare, Reimo Lutter
Format: Article
Language:English
Published: MDPI AG 2022-05-01
Series:Forests
Subjects:
Online Access:https://www.mdpi.com/1999-4907/13/5/784
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author Raimo Kõlli
Karin Kauer
Tõnu Tõnutare
Reimo Lutter
author_facet Raimo Kõlli
Karin Kauer
Tõnu Tõnutare
Reimo Lutter
author_sort Raimo Kõlli
collection DOAJ
description Mature forest ecosystems are the most considerable reservoir of organic carbon (OC) among terrestrial ecosystems. The effect of soil type on aboveground OC stocks and their annual increases (AI) of overstorey tree, understorey tree and ground vegetation layers in Estonian forest phytocoenoses with mature stands on mineral soils were studied. The study enfolds nine mineral soil groups, which are characterized by their phytocoenoses composition, soil cover properties and tree stands’ taxation data. An assemblage of soil and plant cover or plant–soil system is the main focus point in explaining causal and quantitative sides of ecosystems functioning. Surface densities of OC stocks in aboveground phytomass of forests varied significantly in the range of 52–100 Mg OC ha<sup>−1</sup>. High AI or productivity (4.8–5.5 Mg OC ha<sup>−1</sup> year<sup>−1</sup>) is a characteristic of forest ecosystems formed on leached, eluviated and pseudopodzolic soils. Forest ecosystem ground vegetation, which is an important ecological indicator, fulfils vacant ecological niches with herbs and/or mosses (up to 0.50 Mg OC ha<sup>−1</sup>). The variation of ecosystem OC stocks and their AI by soil type should be taken into account in regional OC stocks and its annual increase estimations.
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spelling doaj.art-229f31816fbb4f6b91343606168e99042023-11-23T11:02:39ZengMDPI AGForests1999-49072022-05-0113578410.3390/f13050784Ecosystem Carbon Stocks and Their Annual Sequestration Rate in Mature Forest Stands on the Mineral Soils of EstoniaRaimo Kõlli0Karin Kauer1Tõnu Tõnutare2Reimo Lutter3Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 5, 51006 Tartu, EstoniaInstitute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 5, 51006 Tartu, EstoniaInstitute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 5, 51006 Tartu, EstoniaInstitute of Forestry and Engineering, Estonian University of Life Sciences, Kreutzwaldi 5, 51006 Tartu, EstoniaMature forest ecosystems are the most considerable reservoir of organic carbon (OC) among terrestrial ecosystems. The effect of soil type on aboveground OC stocks and their annual increases (AI) of overstorey tree, understorey tree and ground vegetation layers in Estonian forest phytocoenoses with mature stands on mineral soils were studied. The study enfolds nine mineral soil groups, which are characterized by their phytocoenoses composition, soil cover properties and tree stands’ taxation data. An assemblage of soil and plant cover or plant–soil system is the main focus point in explaining causal and quantitative sides of ecosystems functioning. Surface densities of OC stocks in aboveground phytomass of forests varied significantly in the range of 52–100 Mg OC ha<sup>−1</sup>. High AI or productivity (4.8–5.5 Mg OC ha<sup>−1</sup> year<sup>−1</sup>) is a characteristic of forest ecosystems formed on leached, eluviated and pseudopodzolic soils. Forest ecosystem ground vegetation, which is an important ecological indicator, fulfils vacant ecological niches with herbs and/or mosses (up to 0.50 Mg OC ha<sup>−1</sup>). The variation of ecosystem OC stocks and their AI by soil type should be taken into account in regional OC stocks and its annual increase estimations.https://www.mdpi.com/1999-4907/13/5/784forest ecosystemphytocoenosissoil coverorganic carbon stockphytomassannual increase
spellingShingle Raimo Kõlli
Karin Kauer
Tõnu Tõnutare
Reimo Lutter
Ecosystem Carbon Stocks and Their Annual Sequestration Rate in Mature Forest Stands on the Mineral Soils of Estonia
Forests
forest ecosystem
phytocoenosis
soil cover
organic carbon stock
phytomass
annual increase
title Ecosystem Carbon Stocks and Their Annual Sequestration Rate in Mature Forest Stands on the Mineral Soils of Estonia
title_full Ecosystem Carbon Stocks and Their Annual Sequestration Rate in Mature Forest Stands on the Mineral Soils of Estonia
title_fullStr Ecosystem Carbon Stocks and Their Annual Sequestration Rate in Mature Forest Stands on the Mineral Soils of Estonia
title_full_unstemmed Ecosystem Carbon Stocks and Their Annual Sequestration Rate in Mature Forest Stands on the Mineral Soils of Estonia
title_short Ecosystem Carbon Stocks and Their Annual Sequestration Rate in Mature Forest Stands on the Mineral Soils of Estonia
title_sort ecosystem carbon stocks and their annual sequestration rate in mature forest stands on the mineral soils of estonia
topic forest ecosystem
phytocoenosis
soil cover
organic carbon stock
phytomass
annual increase
url https://www.mdpi.com/1999-4907/13/5/784
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