Soil Enzyme Activities and Their Relationships With Soil C, N, and P in Peatlands From Different Types of Permafrost Regions, Northeast China
Peatland is a key component of terrestrial ecosystems in permafrost regions and have important effects on climate warming. Soil enzymes are involved in biogeochemical cycle of soil carbon (C), nitrogen (N) and phosphorus (P), which can be used as early sensitive indicators of soil nutrient changes c...
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ftdoajarticles:oai:doaj.org/article:17fe5c3ea22b4584a0a1a97d31817f8c 2023-05-15T17:55:15+02:00 Soil Enzyme Activities and Their Relationships With Soil C, N, and P in Peatlands From Different Types of Permafrost Regions, Northeast China Chao Liu Yanyu Song Xingfeng Dong Xianwei Wang Xiuyan Ma Guangying Zhao Shuying Zang 2021-05-01T00:00:00Z https://doi.org/10.3389/fenvs.2021.670769 https://doaj.org/article/17fe5c3ea22b4584a0a1a97d31817f8c EN eng Frontiers Media S.A. https://www.frontiersin.org/articles/10.3389/fenvs.2021.670769/full https://doaj.org/toc/2296-665X 2296-665X doi:10.3389/fenvs.2021.670769 https://doaj.org/article/17fe5c3ea22b4584a0a1a97d31817f8c Frontiers in Environmental Science, Vol 9 (2021) permafrost degradation permafrost region peatlands soil enzyme activity physicochemical properties soil substrate Environmental sciences GE1-350 article 2021 ftdoajarticles https://doi.org/10.3389/fenvs.2021.670769 2022-12-31T12:13:47Z Peatland is a key component of terrestrial ecosystems in permafrost regions and have important effects on climate warming. Soil enzymes are involved in biogeochemical cycle of soil carbon (C), nitrogen (N) and phosphorus (P), which can be used as early sensitive indicators of soil nutrient changes caused by climate change. To predict the possible effects of permafrost degradation on soil enzymes in peatlands, ten peatlands from three types of permafrost regions along the permafrost degradation sequence (predominantly continuous permafrost region-predominantly continuous and island permafrost region-sparsely island permafrost region) in northeast China were selected to examine the activities of soil invertase, β-glucosidase, urease and acid phosphatase and their relationships with soil physicochemical properties. The results demonstrated that permafrost type had significant effect on soil enzyme activities. Soil enzyme activities in predominantly continuous and island permafrost region were significantly higher than those in sparsely island permafrost region and predominantly continuous permafrost region. The activities of four soil enzymes were higher in 0–15 cm than 15–30 cm soil layer. Soil enzymes activities were positively correlated with soil ammonia nitrogen (NH4+-N), soil moisture content (SMC), total phosphorus (TP) and total nitrogen (TN), but negatively correlated with soil nitrate nitrogen (NO3−-N). Soil inorganic nitrogen and moisture contents were the main factors affecting soil enzyme activities, with NH4+-N accounted for 41.6% of the variance, SMC 29.6%, and NO3−-N 11.0%. These results suggested that permafrost degradation may change soil enzyme activities by changing soil physicochemical properties. In this study, only 0–30 cm peat soil in permafrost regions was collected during the complete thawing period of permafrost active layer, further studies should be placed on the change of soil enzyme activities in active layer and permafrost layer during freezing and thawing process in the southernmost ... Article in Journal/Newspaper permafrost Directory of Open Access Journals: DOAJ Articles Frontiers in Environmental Science 9 |
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permafrost degradation permafrost region peatlands soil enzyme activity physicochemical properties soil substrate Environmental sciences GE1-350 |
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permafrost degradation permafrost region peatlands soil enzyme activity physicochemical properties soil substrate Environmental sciences GE1-350 Chao Liu Yanyu Song Xingfeng Dong Xianwei Wang Xiuyan Ma Guangying Zhao Shuying Zang Soil Enzyme Activities and Their Relationships With Soil C, N, and P in Peatlands From Different Types of Permafrost Regions, Northeast China |
topic_facet |
permafrost degradation permafrost region peatlands soil enzyme activity physicochemical properties soil substrate Environmental sciences GE1-350 |
description |
Peatland is a key component of terrestrial ecosystems in permafrost regions and have important effects on climate warming. Soil enzymes are involved in biogeochemical cycle of soil carbon (C), nitrogen (N) and phosphorus (P), which can be used as early sensitive indicators of soil nutrient changes caused by climate change. To predict the possible effects of permafrost degradation on soil enzymes in peatlands, ten peatlands from three types of permafrost regions along the permafrost degradation sequence (predominantly continuous permafrost region-predominantly continuous and island permafrost region-sparsely island permafrost region) in northeast China were selected to examine the activities of soil invertase, β-glucosidase, urease and acid phosphatase and their relationships with soil physicochemical properties. The results demonstrated that permafrost type had significant effect on soil enzyme activities. Soil enzyme activities in predominantly continuous and island permafrost region were significantly higher than those in sparsely island permafrost region and predominantly continuous permafrost region. The activities of four soil enzymes were higher in 0–15 cm than 15–30 cm soil layer. Soil enzymes activities were positively correlated with soil ammonia nitrogen (NH4+-N), soil moisture content (SMC), total phosphorus (TP) and total nitrogen (TN), but negatively correlated with soil nitrate nitrogen (NO3−-N). Soil inorganic nitrogen and moisture contents were the main factors affecting soil enzyme activities, with NH4+-N accounted for 41.6% of the variance, SMC 29.6%, and NO3−-N 11.0%. These results suggested that permafrost degradation may change soil enzyme activities by changing soil physicochemical properties. In this study, only 0–30 cm peat soil in permafrost regions was collected during the complete thawing period of permafrost active layer, further studies should be placed on the change of soil enzyme activities in active layer and permafrost layer during freezing and thawing process in the southernmost ... |
format |
Article in Journal/Newspaper |
author |
Chao Liu Yanyu Song Xingfeng Dong Xianwei Wang Xiuyan Ma Guangying Zhao Shuying Zang |
author_facet |
Chao Liu Yanyu Song Xingfeng Dong Xianwei Wang Xiuyan Ma Guangying Zhao Shuying Zang |
author_sort |
Chao Liu |
title |
Soil Enzyme Activities and Their Relationships With Soil C, N, and P in Peatlands From Different Types of Permafrost Regions, Northeast China |
title_short |
Soil Enzyme Activities and Their Relationships With Soil C, N, and P in Peatlands From Different Types of Permafrost Regions, Northeast China |
title_full |
Soil Enzyme Activities and Their Relationships With Soil C, N, and P in Peatlands From Different Types of Permafrost Regions, Northeast China |
title_fullStr |
Soil Enzyme Activities and Their Relationships With Soil C, N, and P in Peatlands From Different Types of Permafrost Regions, Northeast China |
title_full_unstemmed |
Soil Enzyme Activities and Their Relationships With Soil C, N, and P in Peatlands From Different Types of Permafrost Regions, Northeast China |
title_sort |
soil enzyme activities and their relationships with soil c, n, and p in peatlands from different types of permafrost regions, northeast china |
publisher |
Frontiers Media S.A. |
publishDate |
2021 |
url |
https://doi.org/10.3389/fenvs.2021.670769 https://doaj.org/article/17fe5c3ea22b4584a0a1a97d31817f8c |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
Frontiers in Environmental Science, Vol 9 (2021) |
op_relation |
https://www.frontiersin.org/articles/10.3389/fenvs.2021.670769/full https://doaj.org/toc/2296-665X 2296-665X doi:10.3389/fenvs.2021.670769 https://doaj.org/article/17fe5c3ea22b4584a0a1a97d31817f8c |
op_doi |
https://doi.org/10.3389/fenvs.2021.670769 |
container_title |
Frontiers in Environmental Science |
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9 |
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1766163172946870272 |