Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019WR026144 |
Changes in physical properties of Everglades peat soils induced by increased salinity at the laboratory scale: implications for changes in biogenic gas dynamics | |
Matthew J. Sirianni; Xavier Comas | |
2020-04-28 | |
发表期刊 | Water Resources Research
![]() |
出版年 | 2020 |
英文摘要 | Saltwater intrusion due to sea level rise is a major concern for the Florida Everglades because it may induce shifts in ecosystem productivity and physical soil properties. However, the effects of saline water intrusion into the current carbon gas dynamics of the Everglades (particularly in terms of biogenic gas production and emissions, i.e. CH4 and CO2) are still uncertain. In this work, we present a laboratory‐based study to simulate how sea level rise may alter the physical properties (i.e. hydraulic conductivity) of peat soils from the Everglades, and consequently affect the accumulation and release of biogenic gases within the peat matrix. Peat monoliths collected from the Everglades were subjected to progressive increases in salinity from a NaCl solution, and changes to the biogenic gas dynamics regime were simultaneously monitored using a combination of time‐lapse ground‐penetrating radar measurements, manometers, time‐lapse photography, and gas traps. Physical changes to the peat matrix at each salinity interval were assessed using constant head permeameter tests. Consistent with previous research, results show that a progressive increase in salinity (from fresh to saltwater) results in 1) a progressive increase in hydraulic conductivity; and 2) a progressive decrease in gas content within the peat matrix (i.e. production) and gas releases. This work has implications for better understanding the potential effects of saltwater intrusion into freshwater peatland systems in the Everglades, particularly in terms of carbon gas dynamics. |
领域 | 资源环境 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/249160 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | Matthew J. Sirianni,Xavier Comas. Changes in physical properties of Everglades peat soils induced by increased salinity at the laboratory scale: implications for changes in biogenic gas dynamics[J]. Water Resources Research,2020. |
APA | Matthew J. Sirianni,&Xavier Comas.(2020).Changes in physical properties of Everglades peat soils induced by increased salinity at the laboratory scale: implications for changes in biogenic gas dynamics.Water Resources Research. |
MLA | Matthew J. Sirianni,et al."Changes in physical properties of Everglades peat soils induced by increased salinity at the laboratory scale: implications for changes in biogenic gas dynamics".Water Resources Research (2020). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论