Science University Research Symposium (SURS)
Publication Date
Fall 11-3-2026
College
College of Sciences & Mathematics
Presentation Type
Poster Presentation
Abstract
Measuring leaf litter decomposition rates provides insight into nutrient cycling within ecosystems and the contribution of plant matter to soil composition. Different plant species show different decomposition rates depending on their chemical makeup and structural characteristics. Using litterbags, it is possible to track and measure the breakdown of plant material by comparing its initial and final mass over a designated period of time. Tennessee has a range of native and non-native plant species. This study focused on two plants; native Blue False Indigo (Baptisia australis) and non-native Sulfur Cosmos (Cosmos sulphureus). It was hypothesized that native plants would decompose more rapidly than non-native plants due to decomposers being more adapted to the chemicals within the leaves. Litter-bags containing leaves both species were left on Belmont University’s greenroof for 10 weeks. By comparing the decomposition rates of the leaves of native and non-native plants, this study aims to better understand how differences in plant decomposition may influence nutrient cycling and ecosystem health. These findings may contribute to more informed approaches to invasive species management and long-term sustainability.
Recommended Citation
Pattillo, Christine; Chaudhry, Shahtaj; Golden, Andrew; and Panvini, Darlene, "Native Versus Nonnative Species: Decomposition Rates in Blue False Indigo and Sulfur Cosmos Leaf Litter" (2026). Science University Research Symposium (SURS). 419.
https://repository.belmont.edu/surs/419
