Climatic effects on litter decomposition from arctic tundra to tropical rainforest
Abstract Climatic effects on the decomposition rates of various litter types in different environments must be known to predict how climatic changes would affect key functions of terrestrial ecosystems, such as nutrient and carbon cycling and plant growth. We developed regression models of the clima...
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crwiley:10.1046/j.1365-2486.2003.00605.x 2024-06-23T07:50:14+00:00 Climatic effects on litter decomposition from arctic tundra to tropical rainforest LISKI, JARI NISSINEN, ARI ERHARD, MARKUS TASKINEN, OLLI 2003 http://dx.doi.org/10.1046/j.1365-2486.2003.00605.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1365-2486.2003.00605.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-2486.2003.00605.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Global Change Biology volume 9, issue 4, page 575-584 ISSN 1354-1013 1365-2486 journal-article 2003 crwiley https://doi.org/10.1046/j.1365-2486.2003.00605.x 2024-06-11T04:46:23Z Abstract Climatic effects on the decomposition rates of various litter types in different environments must be known to predict how climatic changes would affect key functions of terrestrial ecosystems, such as nutrient and carbon cycling and plant growth. We developed regression models of the climatic effects on the first‐year mass loss of Scots pine needle litter in boreal and temperate forests across Europe (34 sites), and tested the applicability of these models for other litter types in different ecosystems from arctic tundra to tropical rainforest in Canada (average three year mass loss of 11 litter types at 18 sites), the USA and Central America (four litter types at 26 sites). A temperature variable (annual mean temperature, effective temperature sum or its logarithm) combined with a summer drought indicator (precipitation minus potential evapotranspiration between May and September) explained the first‐year mass loss of the Scots pine needle litter across Europe with a higher R 2 value than actual evapotranspiration (0.68–0.74 vs. 0.51) and with less systematic error for any sub‐region. The model with temperature sum and the summer drought indicator appeared best suited to the other litter types and environments. It predicted the climatic effects on the decomposition rates in North and Central America with least systematic error and highest R 2 values (0.72–0.80). Compared with Europe, the decomposition rate was significantly less sensitive to annual mean temperature in Canada, and to changes in actual evapotranspiration in the USA and Central America. A simple model distinguishing temperature and drought effects was able to explain the majority of climatic effects on the decomposition rates of the various litter types tested in the varying environments over the large geographical areas. Actual evapotranspiration summarizing the temperature and drought effects was not as general climatic predictor of the decomposition rate. Article in Journal/Newspaper Arctic Tundra Wiley Online Library Arctic Canada Global Change Biology 9 4 575 584 |
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Wiley Online Library |
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English |
description |
Abstract Climatic effects on the decomposition rates of various litter types in different environments must be known to predict how climatic changes would affect key functions of terrestrial ecosystems, such as nutrient and carbon cycling and plant growth. We developed regression models of the climatic effects on the first‐year mass loss of Scots pine needle litter in boreal and temperate forests across Europe (34 sites), and tested the applicability of these models for other litter types in different ecosystems from arctic tundra to tropical rainforest in Canada (average three year mass loss of 11 litter types at 18 sites), the USA and Central America (four litter types at 26 sites). A temperature variable (annual mean temperature, effective temperature sum or its logarithm) combined with a summer drought indicator (precipitation minus potential evapotranspiration between May and September) explained the first‐year mass loss of the Scots pine needle litter across Europe with a higher R 2 value than actual evapotranspiration (0.68–0.74 vs. 0.51) and with less systematic error for any sub‐region. The model with temperature sum and the summer drought indicator appeared best suited to the other litter types and environments. It predicted the climatic effects on the decomposition rates in North and Central America with least systematic error and highest R 2 values (0.72–0.80). Compared with Europe, the decomposition rate was significantly less sensitive to annual mean temperature in Canada, and to changes in actual evapotranspiration in the USA and Central America. A simple model distinguishing temperature and drought effects was able to explain the majority of climatic effects on the decomposition rates of the various litter types tested in the varying environments over the large geographical areas. Actual evapotranspiration summarizing the temperature and drought effects was not as general climatic predictor of the decomposition rate. |
format |
Article in Journal/Newspaper |
author |
LISKI, JARI NISSINEN, ARI ERHARD, MARKUS TASKINEN, OLLI |
spellingShingle |
LISKI, JARI NISSINEN, ARI ERHARD, MARKUS TASKINEN, OLLI Climatic effects on litter decomposition from arctic tundra to tropical rainforest |
author_facet |
LISKI, JARI NISSINEN, ARI ERHARD, MARKUS TASKINEN, OLLI |
author_sort |
LISKI, JARI |
title |
Climatic effects on litter decomposition from arctic tundra to tropical rainforest |
title_short |
Climatic effects on litter decomposition from arctic tundra to tropical rainforest |
title_full |
Climatic effects on litter decomposition from arctic tundra to tropical rainforest |
title_fullStr |
Climatic effects on litter decomposition from arctic tundra to tropical rainforest |
title_full_unstemmed |
Climatic effects on litter decomposition from arctic tundra to tropical rainforest |
title_sort |
climatic effects on litter decomposition from arctic tundra to tropical rainforest |
publisher |
Wiley |
publishDate |
2003 |
url |
http://dx.doi.org/10.1046/j.1365-2486.2003.00605.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1365-2486.2003.00605.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-2486.2003.00605.x |
geographic |
Arctic Canada |
geographic_facet |
Arctic Canada |
genre |
Arctic Tundra |
genre_facet |
Arctic Tundra |
op_source |
Global Change Biology volume 9, issue 4, page 575-584 ISSN 1354-1013 1365-2486 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1046/j.1365-2486.2003.00605.x |
container_title |
Global Change Biology |
container_volume |
9 |
container_issue |
4 |
container_start_page |
575 |
op_container_end_page |
584 |
_version_ |
1802641114398720000 |