Abstract
Soil water repellency or hydrophobicity is a common and important soil
property, which may diminish plant growth and promotes soil erosion
leading to environmentally undesired situations. Hydrophobic organic
compounds in the soil are derived from vegetation (leaves, roots,
mosses) or microorganisms (fungi, bacteria), and these compounds induce
soil water repellency (SWR) and can be called SWR-biomarkers. As common
hydrophobic constituents of organic matter, plant lipids are mainly from
wax layers of leaves and roots, whereas cutins and suberins as aliphatic
biopolyesters occur in leaves and roots, respectively. Their unique
compositions in soil can indicate the original vegetation sources. To
investigate the individual or combined effects of the hydrophobic
compounds on SWR and their possible associations with each other, we
conducted experiments to analyse the organic composition of Dutch
coastal dune sandy soils in relation to SWR. DCM/MeOH solvent is used to
remove solvent soluble lipids. BF3-methanol is utilized to depolymerize
cutins and suberins from isopropanol/NH3 extractable organic matter.
Total organic carbon (TOC) has a positive linear relation with SWR only
for those soils containing low TOC (
Effect of Plant-derived Hydrophobic Compounds on Soil Water Repellency in Dutch Sandy Soils - ResearchGate. Available from: http://www.researchgate.net/publication/258773728_Effect_of_Plant-derived_Hydrophobic_Compounds_on_Soil_Water_Repellency_in_Dutch_Sandy_Soils [accessed Apr 2, 2015].
property, which may diminish plant growth and promotes soil erosion
leading to environmentally undesired situations. Hydrophobic organic
compounds in the soil are derived from vegetation (leaves, roots,
mosses) or microorganisms (fungi, bacteria), and these compounds induce
soil water repellency (SWR) and can be called SWR-biomarkers. As common
hydrophobic constituents of organic matter, plant lipids are mainly from
wax layers of leaves and roots, whereas cutins and suberins as aliphatic
biopolyesters occur in leaves and roots, respectively. Their unique
compositions in soil can indicate the original vegetation sources. To
investigate the individual or combined effects of the hydrophobic
compounds on SWR and their possible associations with each other, we
conducted experiments to analyse the organic composition of Dutch
coastal dune sandy soils in relation to SWR. DCM/MeOH solvent is used to
remove solvent soluble lipids. BF3-methanol is utilized to depolymerize
cutins and suberins from isopropanol/NH3 extractable organic matter.
Total organic carbon (TOC) has a positive linear relation with SWR only
for those soils containing low TOC (
Effect of Plant-derived Hydrophobic Compounds on Soil Water Repellency in Dutch Sandy Soils - ResearchGate. Available from: http://www.researchgate.net/publication/258773728_Effect_of_Plant-derived_Hydrophobic_Compounds_on_Soil_Water_Repellency_in_Dutch_Sandy_Soils [accessed Apr 2, 2015].
| Original language | English |
|---|---|
| Publication status | Published - 7 Apr 2013 |
| Event | EGU General Assembly 2013 - Vienna, Austria Duration: 7 Apr 2013 → … |
Conference
| Conference | EGU General Assembly 2013 |
|---|---|
| City | Vienna, Austria |
| Period | 7/04/13 → … |