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County updates soil-health initiatives: pocket prairie, soil-quality restoration, right-of-way sampling
Summary
County staff reviewed three soil-health efforts'a reimbursable soil-quality restoration program, a pocket-prairie planting program, and a pilot right-of-way soil-sampling study. Programs use a mix of county sustainability funds and partnerships with Master Gardeners, SWCDs and local contractors.
Johnson County staff briefed supervisors on a cluster of soil-health programs on Jan. 15 aimed at improving local soils and supporting outreach.
The lede: The county now bundles three efforts under "Johnson County Soil Health": the Soil Quality Restoration (SQR) reimbursement program, a new Pocket Prairie program that supplies native plants to homeowners, and a right-of-way soil-sampling pilot to track long-term soil-health changes.
Program details: The SQR program (funded with a $30,000 Sustainability Energy Reinvestment Fund allocation) reimburses participants up to 50% of SQR costs (maximum $2,000 per participant); the county distributed funds to participants in multiple communities and plans a spring outreach push. The Pocket Prairie Program (initial year budget $5,000, expanding to $8,000) supplied native-plant kits for 100-square-foot plots; staff plan to double participants to about 40 and consider opening a bulk-order option for nonparticipants to buy lower-cost plants.
Right-of-way sampling pilot: Staff designed a paired-sample approach along county rights of way to compare managed versus unmanaged ditches and adjacent land-management practices; samples were sent to Ward Laboratories for soil-health assessment. Staff said fall 2024 drought conditions made sampling difficult and that the initial results were not fully conclusive; they plan to sample again under better conditions and expect meaningful comparisons over a multi-year cadence (3'5 year sampling intervals).
Partnerships and outreach: Programs include partnerships with local Master Gardeners, Iowa Learning Farms, Heartland Co-op and the Meskwaki Nation; staff also plan a BioBlitz and classroom outreach if grant funding for education is secured.
Outcome and next steps: Staff will expand the Pocket Prairie program in spring 2025, continue SQR outreach, post right-of-way results online and refine the sampling strategy before repeating samples in a year with better moisture conditions.
Ending: Supervisors commended staff and partners for building scalable outreach that can support future conservation funding and on-the-ground practices.
