Decomposition of fine roots and α-cellulose in a short rotation willow (Salix spp.) plantation on abandoned agricultural land
Decomposition of fine roots (<1 mm in diameter) of the clones of Salix viminalis, S. dasyclados and α-cellulose sheets (50 x 10 x 1 mm) was studied in a 6-years old Salix spp. plantation established on abandoned agricultural land in Estonia. The substrates were incubated in litterbags (mes...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Finnish Society of Forest Science
2007-01-01
|
| Series: | Silva Fennica |
| Online Access: | https://www.silvafennica.fi/article/294 |
| _version_ | 1818916150360145920 |
|---|---|
| author | Püttsepp, Ülle Lõhmus, Krista Koppel, Andres |
| author_facet | Püttsepp, Ülle Lõhmus, Krista Koppel, Andres |
| author_sort | Püttsepp, Ülle |
| collection | DOAJ |
| description | Decomposition of fine roots (<1 mm in diameter) of the clones of Salix viminalis, S. dasyclados and α-cellulose sheets (50 x 10 x 1 mm) was studied in a 6-years old Salix spp. plantation established on abandoned agricultural land in Estonia. The substrates were incubated in litterbags (mesh size 0.14 mm) in 5â10 cm topsoil, in non-fertilised plots for one year. Changes in the ash-free weight of the fine roots were best described by negative exponential models (S. viminalis R =â0.98, S. dasyclados R =â0.96), and by a linear model for α-cellulose (R =â0.63). The sheets of α-cellulose decomposed roughly twice as rapidly as the fine roots (S. viminalis kâ=â0.325, S. dasyclados kâ=â0.165). The remaining (of the initial) ash-free weights of the fine roots were 73.3â±â0.8% (meanâ±âSE) and 85.8â±â2.2% respectively, and of the α-cellulose 35.9â±â8.5%, in the end of the one year of decomposition. The amount of acid detergent (AD) lignin in the fine-roots of S. viminalis increased significantly and did not change in S. dasyclados, suggesting higher activity of microbial decomposers in the first substrate. Of the studied quality parameters, the AD lignin was the major factor determining the different rate of decomposition of the fine roots of S. viminalis and S. dasyclados. Nitrogen was recycled in the fine root sub-system in both Salix species. This knowledge can be applied in the management of Salix plantations, aimed at bioenergy production.222 |
| first_indexed | 2024-12-20T00:13:36Z |
| format | Article |
| id | doaj.art-956b3f16214e44ab9689fca2890c926a |
| institution | Directory Open Access Journal |
| issn | 2242-4075 |
| language | English |
| last_indexed | 2024-12-20T00:13:36Z |
| publishDate | 2007-01-01 |
| publisher | Finnish Society of Forest Science |
| record_format | Article |
| series | Silva Fennica |
| spelling | doaj.art-956b3f16214e44ab9689fca2890c926a2022-12-21T20:00:26ZengFinnish Society of Forest ScienceSilva Fennica2242-40752007-01-0141210.14214/sf.294Decomposition of fine roots and α-cellulose in a short rotation willow (Salix spp.) plantation on abandoned agricultural landPüttsepp, ÜlleLõhmus, KristaKoppel, AndresDecomposition of fine roots (<1 mm in diameter) of the clones of Salix viminalis, S. dasyclados and α-cellulose sheets (50 x 10 x 1 mm) was studied in a 6-years old Salix spp. plantation established on abandoned agricultural land in Estonia. The substrates were incubated in litterbags (mesh size 0.14 mm) in 5â10 cm topsoil, in non-fertilised plots for one year. Changes in the ash-free weight of the fine roots were best described by negative exponential models (S. viminalis R =â0.98, S. dasyclados R =â0.96), and by a linear model for α-cellulose (R =â0.63). The sheets of α-cellulose decomposed roughly twice as rapidly as the fine roots (S. viminalis kâ=â0.325, S. dasyclados kâ=â0.165). The remaining (of the initial) ash-free weights of the fine roots were 73.3â±â0.8% (meanâ±âSE) and 85.8â±â2.2% respectively, and of the α-cellulose 35.9â±â8.5%, in the end of the one year of decomposition. The amount of acid detergent (AD) lignin in the fine-roots of S. viminalis increased significantly and did not change in S. dasyclados, suggesting higher activity of microbial decomposers in the first substrate. Of the studied quality parameters, the AD lignin was the major factor determining the different rate of decomposition of the fine roots of S. viminalis and S. dasyclados. Nitrogen was recycled in the fine root sub-system in both Salix species. This knowledge can be applied in the management of Salix plantations, aimed at bioenergy production.222https://www.silvafennica.fi/article/294 |
| spellingShingle | Püttsepp, Ülle Lõhmus, Krista Koppel, Andres Decomposition of fine roots and α-cellulose in a short rotation willow (Salix spp.) plantation on abandoned agricultural land Silva Fennica |
| title | Decomposition of fine roots and α-cellulose in a short rotation willow (Salix spp.) plantation on abandoned agricultural land |
| title_full | Decomposition of fine roots and α-cellulose in a short rotation willow (Salix spp.) plantation on abandoned agricultural land |
| title_fullStr | Decomposition of fine roots and α-cellulose in a short rotation willow (Salix spp.) plantation on abandoned agricultural land |
| title_full_unstemmed | Decomposition of fine roots and α-cellulose in a short rotation willow (Salix spp.) plantation on abandoned agricultural land |
| title_short | Decomposition of fine roots and α-cellulose in a short rotation willow (Salix spp.) plantation on abandoned agricultural land |
| title_sort | decomposition of fine roots and α cellulose in a short rotation willow salix spp plantation on abandoned agricultural land |
| url | https://www.silvafennica.fi/article/294 |
| work_keys_str_mv | AT puttseppulle decompositionoffinerootsandacelluloseinashortrotationwillowsalixsppplantationonabandonedagriculturalland AT lohmuskrista decompositionoffinerootsandacelluloseinashortrotationwillowsalixsppplantationonabandonedagriculturalland AT koppelandres decompositionoffinerootsandacelluloseinashortrotationwillowsalixsppplantationonabandonedagriculturalland |