Cargando…

Effects of short-term warming and nitrogen addition on the quantity and quality of dissolved organic matter in a subtropical Cunninghamia lanceolata plantation

Increasing temperature and nitrogen (N) deposition are two large-scale changes projected to occur over the coming decades. The effects of these changes on dissolved organic matter (DOM) are largely unknown. This study aimed to assess the effects of warming and N addition on the quantity and quality...

Descripción completa

Detalles Bibliográficos
Autores principales: Yuan, Xiaochun, Si, Youtao, Lin, Weisheng, Yang, Jingqing, Wang, Zheng, Zhang, Qiufang, Qian, Wei, Chen, Yuehmin, Yang, Yusheng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5779672/
https://www.ncbi.nlm.nih.gov/pubmed/29360853
http://dx.doi.org/10.1371/journal.pone.0191403
_version_ 1783294584904744960
author Yuan, Xiaochun
Si, Youtao
Lin, Weisheng
Yang, Jingqing
Wang, Zheng
Zhang, Qiufang
Qian, Wei
Chen, Yuehmin
Yang, Yusheng
author_facet Yuan, Xiaochun
Si, Youtao
Lin, Weisheng
Yang, Jingqing
Wang, Zheng
Zhang, Qiufang
Qian, Wei
Chen, Yuehmin
Yang, Yusheng
author_sort Yuan, Xiaochun
collection PubMed
description Increasing temperature and nitrogen (N) deposition are two large-scale changes projected to occur over the coming decades. The effects of these changes on dissolved organic matter (DOM) are largely unknown. This study aimed to assess the effects of warming and N addition on the quantity and quality of DOM from a subtropical Cunninghamia lanceolata plantation. Between 2014 and 2016, soil solutions were collected from 0–15, 15–30, and 30–60 cm depths by using a negative pressure sampling method. The quantity and quality of DOM were measured under six different treatments. The spectra showed that the DOM of the forest soil solution mainly consisted of aromatic protein-like components, microbial degradation products, and negligible amounts of humic-like substances. Warming, N addition, and warming + N addition significantly inhibited the concentration of dissolved organic carbon (DOC) in the surface (0–15 cm) soil solution. Our results suggested that warming reduced the amount of DOM originating from microbes. The decrease in protein and carboxylic acid contents was mostly attributed to the reduction of DOC following N addition. The warming + N addition treatment showed an interactive effect rather than an additive effect. Thus, short-term warming and warming + N addition decreased the quantity of DOM and facilitated the migration of nutrients to deeper soils. Further, N addition increased the complexity of the DOM structure. Hence, the loss of soil nutrients and the rational application of N need to be considered in order to prevent the accumulation of N compounds in soil.
format Online
Article
Text
id pubmed-5779672
institution National Center for Biotechnology Information
language English
publishDate 2018
publisher Public Library of Science
record_format MEDLINE/PubMed
spelling pubmed-57796722018-02-08 Effects of short-term warming and nitrogen addition on the quantity and quality of dissolved organic matter in a subtropical Cunninghamia lanceolata plantation Yuan, Xiaochun Si, Youtao Lin, Weisheng Yang, Jingqing Wang, Zheng Zhang, Qiufang Qian, Wei Chen, Yuehmin Yang, Yusheng PLoS One Research Article Increasing temperature and nitrogen (N) deposition are two large-scale changes projected to occur over the coming decades. The effects of these changes on dissolved organic matter (DOM) are largely unknown. This study aimed to assess the effects of warming and N addition on the quantity and quality of DOM from a subtropical Cunninghamia lanceolata plantation. Between 2014 and 2016, soil solutions were collected from 0–15, 15–30, and 30–60 cm depths by using a negative pressure sampling method. The quantity and quality of DOM were measured under six different treatments. The spectra showed that the DOM of the forest soil solution mainly consisted of aromatic protein-like components, microbial degradation products, and negligible amounts of humic-like substances. Warming, N addition, and warming + N addition significantly inhibited the concentration of dissolved organic carbon (DOC) in the surface (0–15 cm) soil solution. Our results suggested that warming reduced the amount of DOM originating from microbes. The decrease in protein and carboxylic acid contents was mostly attributed to the reduction of DOC following N addition. The warming + N addition treatment showed an interactive effect rather than an additive effect. Thus, short-term warming and warming + N addition decreased the quantity of DOM and facilitated the migration of nutrients to deeper soils. Further, N addition increased the complexity of the DOM structure. Hence, the loss of soil nutrients and the rational application of N need to be considered in order to prevent the accumulation of N compounds in soil. Public Library of Science 2018-01-23 /pmc/articles/PMC5779672/ /pubmed/29360853 http://dx.doi.org/10.1371/journal.pone.0191403 Text en © 2018 Yuan et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Yuan, Xiaochun
Si, Youtao
Lin, Weisheng
Yang, Jingqing
Wang, Zheng
Zhang, Qiufang
Qian, Wei
Chen, Yuehmin
Yang, Yusheng
Effects of short-term warming and nitrogen addition on the quantity and quality of dissolved organic matter in a subtropical Cunninghamia lanceolata plantation
title Effects of short-term warming and nitrogen addition on the quantity and quality of dissolved organic matter in a subtropical Cunninghamia lanceolata plantation
title_full Effects of short-term warming and nitrogen addition on the quantity and quality of dissolved organic matter in a subtropical Cunninghamia lanceolata plantation
title_fullStr Effects of short-term warming and nitrogen addition on the quantity and quality of dissolved organic matter in a subtropical Cunninghamia lanceolata plantation
title_full_unstemmed Effects of short-term warming and nitrogen addition on the quantity and quality of dissolved organic matter in a subtropical Cunninghamia lanceolata plantation
title_short Effects of short-term warming and nitrogen addition on the quantity and quality of dissolved organic matter in a subtropical Cunninghamia lanceolata plantation
title_sort effects of short-term warming and nitrogen addition on the quantity and quality of dissolved organic matter in a subtropical cunninghamia lanceolata plantation
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5779672/
https://www.ncbi.nlm.nih.gov/pubmed/29360853
http://dx.doi.org/10.1371/journal.pone.0191403
work_keys_str_mv AT yuanxiaochun effectsofshorttermwarmingandnitrogenadditiononthequantityandqualityofdissolvedorganicmatterinasubtropicalcunninghamialanceolataplantation
AT siyoutao effectsofshorttermwarmingandnitrogenadditiononthequantityandqualityofdissolvedorganicmatterinasubtropicalcunninghamialanceolataplantation
AT linweisheng effectsofshorttermwarmingandnitrogenadditiononthequantityandqualityofdissolvedorganicmatterinasubtropicalcunninghamialanceolataplantation
AT yangjingqing effectsofshorttermwarmingandnitrogenadditiononthequantityandqualityofdissolvedorganicmatterinasubtropicalcunninghamialanceolataplantation
AT wangzheng effectsofshorttermwarmingandnitrogenadditiononthequantityandqualityofdissolvedorganicmatterinasubtropicalcunninghamialanceolataplantation
AT zhangqiufang effectsofshorttermwarmingandnitrogenadditiononthequantityandqualityofdissolvedorganicmatterinasubtropicalcunninghamialanceolataplantation
AT qianwei effectsofshorttermwarmingandnitrogenadditiononthequantityandqualityofdissolvedorganicmatterinasubtropicalcunninghamialanceolataplantation
AT chenyuehmin effectsofshorttermwarmingandnitrogenadditiononthequantityandqualityofdissolvedorganicmatterinasubtropicalcunninghamialanceolataplantation
AT yangyusheng effectsofshorttermwarmingandnitrogenadditiononthequantityandqualityofdissolvedorganicmatterinasubtropicalcunninghamialanceolataplantation