home    about    browse    search    latest    help 
Login | Create Account

Soil Microbial Biomass Under the Canopy of Coastal Sand Dune Shrubs

Sarig, S.; Fliessbach, A. and Steinberger, Y. (1999) Soil Microbial Biomass Under the Canopy of Coastal Sand Dune Shrubs. Arid Soil Research and Rehabilitation, 13 (1), pp. 75-80.

[img] PDF - English
Limited to [Depositor and staff only]

158kB

Online at: http://www.tandfonline.com/doi/abs/10.1080/.VCVKLPl_tig#.VCVKNRburGo

Summary

Coastal sand dunes are affected by seasonal fuctuations in salinity due to seawater spray and precipitation. Salinity was found to be very high in summer soil samples and was about 15­20 times lower in the preceding rainy winter. High microbial biomass values of 234.6 and 173.1 µgC gˉ¹ dry soil were found under Artemisia monosperma and Retama raetam, respectively, even at elevated salinity. The metabolic quotient for CO2 which may serve as an indicator for changes in microbial diversity or environmental stress, was unexpectedly high (58.5 and 48.8 µg mg ˉ¹ d ˉ¹ under A. monosperma and R. raetam, respectively) in low-saline samples from the winter when compared to the summer (a maximal value of 20 µg mg ˉ¹ d ˉ¹), probably indicating a shift in community structure. It may be concluded that even under hostile conditions in poor sandy soils and with high salinity the presence of perennial shrubs creates favorable niches for microorganisms and affects their activity.


EPrint Type:Journal paper
Keywords:Artemisia monosperma, microbial biomass, qCO2 Retama raetam, salinity, Department of Soil Sciences, Soil Quality & Functions
Agrovoc keywords:
LanguageValueURI
EnglishArtemisia monospermaUNSPECIFIED
Englishmicrobial biomassUNSPECIFIED
EnglishqCO2UNSPECIFIED
EnglishRetama raetamUNSPECIFIED
EnglishsalinityUNSPECIFIED
Subjects: Soil > Soil quality > Soil biology
Research affiliation: Switzerland > FiBL - Research Institute of Organic Agriculture Switzerland > Soil Sciences
Israel
Germany > Other organizations
DOI:10.1080/089030699263500
Deposited By: Fliessbach, Dr. Andreas
ID Code:26772
Deposited On:26 Sep 2014 12:16
Last Modified:26 Sep 2014 12:16
Document Language:English
Status:Published
Refereed:Peer-reviewed and accepted

Repository Staff Only: item control page