Calibration of a combined dielectric probe for soil moisture and porewater salinity measurement in organic and mineral coastal wetland soils

Geoderma ◽  
2011 ◽  
Vol 161 (1-2) ◽  
pp. 50-62 ◽  
Author(s):  
A. Mortl ◽  
R. Muñoz-Carpena ◽  
D. Kaplan ◽  
Y. Li
Keyword(s):  
Soil Moisture ◽  
Coastal Wetland ◽  
Wetland Soils ◽  
Porewater Salinity

scholarly journals Short- and long-term hydrologic controls on smouldering fire in wetland soils

2019 ◽  
Vol 28 (3) ◽  
pp. 177 ◽  
Author(s):  
Morgan L. Schulte ◽  
Daniel L. McLaughlin ◽  
Frederic C. Wurster ◽  
J. Morgan Varner ◽  
Ryan D. Stewart ◽  
...  
Keyword(s):  
Soil Moisture ◽  
Moisture Content ◽  
Soil Properties ◽  
Water Level ◽  
Water Levels ◽  
Wetland Soils ◽  
Hydrologic Restoration ◽  
Great Dismal Swamp ◽  
Hydrologic Controls ◽  
Hydrologic Management

Smouldering fire vulnerability in organic-rich, wetland soils is regulated by hydrologic regimes over short (by antecedent wetness) and long (through influences on soil properties) timescales. An integrative understanding of these controls is needed to inform fire predictions and hydrologic management to reduce fire vulnerability. The Great Dismal Swamp, a drained peatland (Virginia and North Carolina, USA), recently experienced large wildfires, motivating hydrologic restoration efforts. To inform those efforts, we combined continuous water levels, soil properties, moisture holding capacity and smouldering probability at four sites along a hydrologic gradient. For each site, we estimated gravimetric soil moisture content associated with a 50% smouldering probability (soil moisture smoulder threshold) and the water tension required to create this moisture threshold (tension smoulder threshold). Soil properties influenced both thresholds. Soils with lower bulk density smouldered at higher moisture content but also had higher moisture holding capacity, indicating that higher tensions (e.g. deeper water tables) are required to reach smouldering thresholds. By combining thresholds with water level data, we assessed smouldering vulnerability over time, providing a framework to guide fire prediction and hydrologic restoration. This work is among the first to integrate soil moisture thresholds, moisture holding capacities and water level dynamics to explore spatiotemporal variation in smouldering fire vulnerability.

Understanding the fate of soil organic matter in submerging coastal wetland soils: A microcosm approach

Geoderma ◽  
2019 ◽  
Vol 337 ◽  
pp. 1267-1277 ◽  
Author(s):  
Havalend E. Steinmuller ◽  
Kyle M. Dittmer ◽  
John R. White ◽  
Lisa G. Chambers
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Coastal Wetland ◽  
Wetland Soils

Characterization of Labile Organic Carbon in Different Coastal Wetland Soils of Laizhou Bay, Bohai Sea

Wetlands ◽  
2016 ◽  
Vol 37 (1) ◽  
pp. 163-175
Author(s):  
Lei Cao ◽  
Jinming Song ◽  
Qidong Wang ◽  
Xuegang Li ◽  
Huamao Yuan ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Bohai Sea ◽  
Coastal Wetland ◽  
Wetland Soils ◽  
Laizhou Bay ◽  
Labile Organic Carbon

Modeling soil moisture effects on net nitrogen mineralization in loamy wetland soils

Wetlands ◽  
2008 ◽  
Vol 28 (3) ◽  
pp. 724-734 ◽  
Author(s):  
Steven Sleutel ◽  
Bram Moeskops ◽  
Willy Huybrechts ◽  
Annemie Vandenbossche ◽  
Joost Salomez ◽  
...  
Keyword(s):  
Soil Moisture ◽  
Nitrogen Mineralization ◽  
Wetland Soils ◽  
Net Nitrogen Mineralization ◽  
Moisture Effects
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