Waterlogging may reduce chemical soil C stabilization in forested peatlands

泥炭 内涝(考古学) 表土 根际 生物量(生态学) 环境科学 土壤碳 底土 农学 化学 土壤pH值 北方的 土壤水分 大块土 土壤有机质 土壤科学 生态学 生物 湿地 遗传学 细菌
作者
Jouni Kilpeläinen,Krista Peltoniemi,Paavo Ojanen,Päivi Mäkiranta,Sylwia Adamczyk,Timo Domisch,Raija Laiho,Bartosz Adamczyk
出处
期刊:Soil Biology & Biochemistry [Elsevier BV]
卷期号:187: 109229-109229
标识
DOI:10.1016/j.soilbio.2023.109229
摘要

Boreal forested peatlands are globally significant carbon (C) pools where soil water-table level largely controls decomposition rate. Here we aimed to investigate the contrarian hypothesis that waterlogging conditions do not lead to increased C stabilization in a forested peatland. We studied how waterlogging affects root and soil chemistry, fungal biomass and necromass, C pools, soil enzyme activities and fungal community composition in Pinus sylvestris rhizosphere. Samples were collected from 0 to 10 cm, 10–20 cm and 20–30 cm soil layers in a controlled-environment experiment with waterlogging and control treatments and in two forested peatland sites, wetter and drier. Tannin content, live fungal biomass, enzyme activities, and chemically stable SOC content and its proportion of total SOC content were generally lower in waterlogged than control treatment in the experiment, and lower in the wetter than the drier site. The proportion of ectomycorrhizal fungi was higher in the drier than the wetter site in the deepest soil layer studied, 20–30 cm. In the wetter site, chemically stable SOC content and proportion of ericoid mycorrhizal fungi were highest in topsoil that contained more roots than deeper soil layers. In conclusion, forested peatlands possess specific root-related chemical SOC stabilization mechanisms, and, consequently, waterlogging makes their SOC more vulnerable due to decreased chemical C stabilization via root-microbial interactions and lowering root production.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
1秒前
1秒前
翻斗花园小美完成签到,获得积分10
2秒前
4秒前
共享精神应助讨厌科研采纳,获得10
5秒前
余南发布了新的文献求助10
5秒前
6秒前
李子发布了新的文献求助10
6秒前
7秒前
量子星尘发布了新的文献求助10
9秒前
9秒前
9秒前
双楠应助SAVP采纳,获得10
10秒前
oui发布了新的文献求助10
11秒前
朴实桐应助花痴的语堂采纳,获得10
11秒前
11秒前
科目三应助东晓采纳,获得10
12秒前
loski发布了新的文献求助10
12秒前
清爽如雪完成签到 ,获得积分10
12秒前
Orange应助hanleiharry1采纳,获得10
15秒前
王海海发布了新的文献求助10
15秒前
16秒前
Xin发布了新的文献求助10
16秒前
mrx完成签到,获得积分20
17秒前
18秒前
孙燕应助光热效应采纳,获得30
21秒前
朴实桐应助花痴的语堂采纳,获得10
22秒前
香香完成签到,获得积分10
23秒前
大脑袋媛媛完成签到,获得积分10
24秒前
夏日发布了新的文献求助10
26秒前
26秒前
hanleiharry1发布了新的文献求助10
27秒前
28秒前
张雯思发布了新的文献求助10
28秒前
29秒前
晚意意意意意完成签到 ,获得积分10
30秒前
33秒前
柯幼萱发布了新的文献求助10
33秒前
33秒前
nightmare发布了新的文献求助10
34秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
‘Unruly’ Children: Historical Fieldnotes and Learning Morality in a Taiwan Village (New Departures in Anthropology) 400
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 350
Robot-supported joining of reinforcement textiles with one-sided sewing heads 320
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3989390
求助须知:如何正确求助?哪些是违规求助? 3531487
关于积分的说明 11254109
捐赠科研通 3270153
什么是DOI,文献DOI怎么找? 1804887
邀请新用户注册赠送积分活动 882087
科研通“疑难数据库(出版商)”最低求助积分说明 809174