A comparison of two warming treatments and their effects on plant growth and ecosystem CO2 exchange, and a concurrent study of seasonal variation in the soil microbial community

Simple item page
dc.contributor.authorWilton, Emily
dc.contributor.supervisorFlanagan, Larry B.
dc.date.accessioned2015-05-04T19:54:07Z
dc.date.available2015-05-04T19:54:07Z
dc.date.issued2015
dc.degree.levelMastersen_US
dc.description.abstractThis study compared the effects of two different warming treatments (open-top chambers and infrared heaters) on the environmental conditions in native prairie grassland. Both treatments increased average air temperature, with infrared heaters providing a more consistent warming than open-top chambers, but also a more significant decrease in soil moisture. Additionally, the effects of warming on plant biomass and ecosystem CO2 exchange were examined. No significant effects of increased temperature were found, although 2013 had higher precipitation than normal and produced more aboveground biomass than average years, with correspondingly low δ13C and δ18O values. Finally, a concurrent study examined the seasonal variation in soil microbial activity, as controlled by the direct and indirect effects of soil temperature and soil moisture. Significant seasonal patterns were found in soil respiration, soil microbial biomass, extracellular enzyme activity and the species composition of the soil bacterial community.en_US
dc.embargoNoen_US
dc.identifier.urihttps://hdl.handle.net/10133/3670
dc.language.isoen_CAen_US
dc.proquest.subject0425en_US
dc.proquest.subject0725en_US
dc.proquest.subject0481en_US
dc.proquestyesYesen_US
dc.publisherLethbridge, Alta. : University of Lethbridge, Dept. of Biological Sciencesen_US
dc.publisher.departmentDepartment of Biological Sciencesen_US
dc.publisher.facultyArts and Sciencesen_US
dc.relation.ispartofseriesThesis (University of Lethbridge. Faculty of Arts and Science)en_US
dc.subjectinfrared heatersen_US
dc.subjectnative prairie grasslanden_US
dc.subjectopen-top chambersen_US
dc.subjectseasonal patternsen_US
dc.subjectsoil microbesen_US
dc.titleA comparison of two warming treatments and their effects on plant growth and ecosystem CO2 exchange, and a concurrent study of seasonal variation in the soil microbial communityen_US
dc.typeThesisen_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
WILTON_EMILY_MSC_2015.pdf
Size:
3.88 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Arts and Science, Faculty of
University of Lethbridge Theses