Does pipeline installation have a lasting effect on crop yields? - Ohio's Country Journal and Ohio Ag Net

By Steve Culman, Theresa Brehm, Ohio State University Extension

Numerous underground oil and gas pipelines have been installed through Ohio farmland over the past several years. This has left many growers wondering if this installation will have lasting impacts on their soils and crops.

Last fall, we collected soil and yield samples from 24 different farms impacted by pipeline installation in seven counties throughout Northern Ohio. The Rover, Utopia, and Nexus pipelines were targeted because of their recent installation, with each pipeline installed within the last 3 to 4 years. 

This shows yield data with each point representing a different field sampled. Negative values to the left of dashed red line indicate percent yield reductions over the pipeline relative to the non-impacted area. 

Grain crops like corn and soybeans were the primary focus. We sampled in two major zones for this study: the right-of-way (ROW) over the pipeline, also known as the easement area, as well as an adjacent, undisturbed area of the same field. Three areas of each field were sampled along a transect. This comparative cross-section of an impacted field provides a pseudo “before-and-after” viewpoint of the field.

In preliminary findings, Ohio crop yields follow similar patterns to previous studies when pipelines are installed. On average, corn grain yields decreased an average of 23.8%, silage corn decreased an average of 28.8%, and soybean yield decreased an average of 7.4% over the pipeline compared with adjacent areas. Soils within the ROW had more rock fragments, lower soil moisture, and had a higher resistance to penetration which indicates lasting forms of soil compaction.

We will be collecting data again this fall, and are also seeking yield maps from fields in Ohio with Rover, Utopia, or Nexus pipelines installed. This will allow us to evaluate pipeline impacts beyond the 24 fields we are currently working in. If you are interested in learning more about the project or possibly sharing yield monitor data with us,  please reach out to Theresa Brehm at brehm.112@osu.edu or (614) 706-2037, or Steve Culman at culman.2@osu.edu or (330) 263-3787.

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Does pipeline installation have a lasting effect on crop yields? - Ohio's Country Journal and Ohio Ag Net
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