Efficacy of fire, herbicide and mowing on smooth brome and re-establisment of a sand prairie

Smooth brome;Wisconsin;Prairie restoration;Wisconsin

Bolwahn, Jessica A.Thomsen, Meredith ;

University of Wisconsin

关键词: Smooth brome;    Wisconsin;    Prairie restoration;    Wisconsin;   

Others  :  https://minds.wisconsin.edu/bitstream/handle/1793/57128/BolwahnJessica2010.pdf?sequence=1&isAllowed=y

瑞士|英语

来源: University of Wisconsin

【 摘 要 】

Smooth brome (Bromus inermis) is an invasive grass native to Eurasia that is now nearlyubiquitous in North America and is frequently encountered in sites targeted for prairierestoration. For this study, I investigated the efficacy of fire, herbicide (2% glyphosate),mowing, and fire plus herbicide for controlling smooth brome and re-establishing a sandprairie community in southwestern Wisconsin. Seven treatments, a seed only control,and full control were replicated 8 times in a randomized block design. Treatments wereapplied after the presence of five leaves per tiller. Repeat treatments were applied thefollowing year. Smooth brome foliar cover and stem density, seeded species foliar coverand richness, litter depth, light availability, and soil moisture measurements wereobtained throughout the study period. Model III two-factor ANOVAs were utilized todetermine any differences among treatments. The fire plus herbicide combinationtreatment was by far the most effective treatment for removing smooth brome andpromoting seeded species establishment. However, this may not be the most appropriatemethod for all land managers. Understanding the effect of the other treatments examinedhere will increase the confidence in the expected outcome of a restoration and contributeto sound management decisions with fewer wasted resources.