What is one issue that may arise with the use of plastic sheeting as a vegetation control method?

Using plastic sheeting as a vegetation control method can indeed lead to the accumulation of gases under the plastic barriers. This occurs because the sheeting blocks airflow and traps moisture and organic gases produced by the soil and beneath the vegetation. As plant and microbial respiration continues, gases such as carbon dioxide can build up, potentially creating an anaerobic environment. This accumulation can have negative effects on soil health and may affect the viability of nearby plants. Understanding this aspect is crucial for anyone applying this method, as it highlights the need to consider the ecological implications of controlling vegetation in aquatic environments.

Other aspects, like the environmental impact on water quality or the effectiveness and cost of the method, while important, do not capture the direct concern regarding the physical effects of using plastic sheeting, making the issue of gas accumulation more significant in context.