The High Input of Soil Organic Matter from Dead Tree Fine Roots into the Forest Soil
The spatial and temporal dynamics of tree fine roots were investigated in six boreal forests types in Eastern Sweden, close to the Swedish Forsmark and Laxemar nuclear power plants. Four dry and two wet forest types were included in the study. The amount of live and dead fine roots in terms of dry w...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | International Journal of Forestry Research |
| Online Access: | http://dx.doi.org/10.1155/2012/217402 |
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| author | Hans Å. Persson |
| author_facet | Hans Å. Persson |
| author_sort | Hans Å. Persson |
| collection | DOAJ |
| description | The spatial and temporal dynamics of tree fine roots were investigated in six boreal forests types in Eastern Sweden, close to the Swedish Forsmark and Laxemar nuclear power plants. Four dry and two wet forest types were included in the study. The amount of live and dead fine roots in terms of dry weight was estimated in soil cores. The live/dead ratios of fine roots (<1 mm in diameter) decreased with depth; very low ratios were observed in two wet forest sites. The proportions of dead fine roots to the total amounts of fine roots in the mineral soil horizons of those wet sites were 63 and 86%. The corresponding proportions in the mineral soil in dry forest sites were 45 and 45% and 49 and 48% at Forsmark and Laxemar, respectively. Sequential soil core sampling demonstrated a high variation in live and dead amounts of fine roots during the growth period. A high accumulation of carbon from dead tree fine root was found in all six forest types, in particular in the wet forest sites, but also in deeper soil horizons. Consequently, substantial amounts of organic matter from dead fine roots are continuously accumulated in the soil in boreal forests. |
| format | Article |
| id | doaj-art-76c2d2596a814ba1b8db03ac7ba98473 |
| institution | Kabale University |
| issn | 1687-9368 1687-9376 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Forestry Research |
| spelling | doaj-art-76c2d2596a814ba1b8db03ac7ba984732025-02-03T01:25:56ZengWileyInternational Journal of Forestry Research1687-93681687-93762012-01-01201210.1155/2012/217402217402The High Input of Soil Organic Matter from Dead Tree Fine Roots into the Forest SoilHans Å. Persson0Department of Ecology, Swedish University of Agricultural Sciences, P.O. Box 7044, 750 07 Uppsala, SwedenThe spatial and temporal dynamics of tree fine roots were investigated in six boreal forests types in Eastern Sweden, close to the Swedish Forsmark and Laxemar nuclear power plants. Four dry and two wet forest types were included in the study. The amount of live and dead fine roots in terms of dry weight was estimated in soil cores. The live/dead ratios of fine roots (<1 mm in diameter) decreased with depth; very low ratios were observed in two wet forest sites. The proportions of dead fine roots to the total amounts of fine roots in the mineral soil horizons of those wet sites were 63 and 86%. The corresponding proportions in the mineral soil in dry forest sites were 45 and 45% and 49 and 48% at Forsmark and Laxemar, respectively. Sequential soil core sampling demonstrated a high variation in live and dead amounts of fine roots during the growth period. A high accumulation of carbon from dead tree fine root was found in all six forest types, in particular in the wet forest sites, but also in deeper soil horizons. Consequently, substantial amounts of organic matter from dead fine roots are continuously accumulated in the soil in boreal forests.http://dx.doi.org/10.1155/2012/217402 |
| spellingShingle | Hans Å. Persson The High Input of Soil Organic Matter from Dead Tree Fine Roots into the Forest Soil International Journal of Forestry Research |
| title | The High Input of Soil Organic Matter from Dead Tree Fine Roots into the Forest Soil |
| title_full | The High Input of Soil Organic Matter from Dead Tree Fine Roots into the Forest Soil |
| title_fullStr | The High Input of Soil Organic Matter from Dead Tree Fine Roots into the Forest Soil |
| title_full_unstemmed | The High Input of Soil Organic Matter from Dead Tree Fine Roots into the Forest Soil |
| title_short | The High Input of Soil Organic Matter from Dead Tree Fine Roots into the Forest Soil |
| title_sort | high input of soil organic matter from dead tree fine roots into the forest soil |
| url | http://dx.doi.org/10.1155/2012/217402 |
| work_keys_str_mv | AT hansapersson thehighinputofsoilorganicmatterfromdeadtreefinerootsintotheforestsoil AT hansapersson highinputofsoilorganicmatterfromdeadtreefinerootsintotheforestsoil |