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Soil health is a critical aspect of an area’s ability to produce viable and healthy crops. Key indicators of soil health are carbon and nitrogen. Previous case studies have reported that carbon concentration decreased with soil depth. We hypothesized that as the soil depth increases, the total soil carbon and nitrogen decreases due to fewer sources of carbon and nitrogen as well as fewer microbes. To test the influence of depth on soil nutrient levels, samples were collected at three different depths, 0-15cm, 15-30cm, and 30cm-60cm; and at three different plots. The total carbon and nitrogen within each sample were analyzed using combustion analysis. The results indicated that as soil depth increased, the total carbon and nitrogen levels decreased. The preliminary study supports the hypothesis that soil carbon and nitrogen levels are influenced by soil depth. Understanding these data are critical for making suggestions for best agriculture management practices.
Mickles, Austin and Smith, Kaitlyn, "Soil Depth Influence on Carbon and Nitrogen Storage" (2021). Biology Presentations. 36.
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