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Places We Protect

Rattlesnake Creek

Kansas

Three large white birds and one smaller brown and white bird standing in a shallow pool of water.
Whooping Cranes Four whooping cranes at Quivira National Wildlife Refuge in Kansas. Fewer than 700 whooping cranes remain in the wild. © United States Fish and Wildlife Service

Saving Water, Saving Wildlife

Helping farmers use water more efficiently around Rattlesnake Creek

Is it possible for profitable agriculture to coexist alongside healthy ecosystems? 

Heidi Mehl, director of water and agriculture for The Nature Conservancy, believes so. 

"It's not just that we can sustain farming and wildlife together, it's that we need both," she says. "Our future depends on it."

One of the places where that idea is being put to the test is around Rattlesnake Creek in central Kansas. The 95-mile stream flows through Quivira National Wildlife Refuge, where large salt marshes provide critical habitat for migratory birds like the endangered whooping crane. 

Wildlife needs the wetlands to have enough water flowing from Rattlesnake Creek. Local farmers need water to irrigate their crops. These competing needs have caused tension, but there’s a solution.

“We can restore the flow of water in Rattlesnake Creek if we reduce water use,” says Mehl. “Protecting the refuge is vital. We need to find the solutions that support everyone who relies on the creek for water, which means supporting both wildlife and agriculture.”

Hands hold a long stick that holds a cross section of soil.
Healthy Soils Save Water A farmer looks at a soil sample during a field day for local farmers to learn about the Rattlesnake Creek Irrigation Efficiency Project. © Heidi Mehl/TNC

Rainfall in this area is fairly low—20-25 inches annually—which means successful production of many crops depends on supplemental water drawn from the Great Bend Prairie aquifer. When the aquifer gets too low, water doesn't flow above ground in Rattlesnake Creek—and the salt marshes of Quivira risk running dry.

For years, the local groundwater management district, GMD 5, has encouraged water conservation, but there is an urgent need for new solutions that allow farmers to use water more efficiently so less water is used overall.

Help Keep Rattlesnake Creek Flowing

Your gift supports TNC's work along Rattlesnake Creek and other threatened rivers in Kansas.

Mobile drip lines apply water directly to the soil, minimizing overall water use.
Irrigation Efficiency Mobile drip lines apply water directly to the soil, minimizing overall water use. © K-State Research and Extension

Irrigation Efficiency Project

In early 2021, The Nature Conservancy began an on-farm trial project in the area around Rattlesnake Creek supported by the Conservation Innovation Grants program at USDA's Natural Resources Conservation Service. The goal is to reduce the amount of groundwater pumped and used for crop fields while still maintaining harvest size and profitability. Participating farmers received a 50% cost-share grant to upgrade their irrigation systems to mobile drip lines, which apply water directly to the soil surface. Free technical assistance was tailored to the farm operations and included the use of a new irrigation scheduling tool developed by Kansas State University. Results showed that the technology can help save water, but it ultimately depends on how people use it. TNC hopes to expand the project to reach more farmers and realize greater water savings.

A large number of sandhill crane birds flock in a field with tree stumps and other freshly cut vegetation.
Sandhill Cranes Sandhill cranes flock to a field along Rattlesnake Creek where salt cedar and Russian olive had recently been removed. © Aron Flanders/USFWS

When More Trees Isn't the Answer

New technology won’t fix everything. Sometimes an old-fashioned approach is needed. For Rattlesnake Creek, that means chopping down trees.

Most of Kansas is naturally devoid of trees except along riverbanks. Before humans began cultivating, nearly all this land was prairie where grasses, flowers and shrubs dominate the landscape instead of trees. This is true of the area around Rattlesnake Creek, known as the Great Bend Sand Prairies because of the sandy soil. In the 19th century, people introduced non-native ornamental trees like salt cedar and Russian olive to serve as windbreaks. These invasive trees drink up more than their share of water, depleting groundwater and further reducing how much water is left to flow in the creek.

cottonwood tree with yellow leaves in the background and a thicket of mostly leafless shrubs in the foreground.
Salt Cedar and Russian Olive Invasive salt cedar and Russian olive in front of a native cottonwood tree. © Erika Nortemann/TNC

A few years ago, TNC brought together farmers, local leaders, state agencies, federal partners and more to find solutions that work for everyone. One of the first, high-impact actions they identified was eliminating these invasive trees. TNC quickly joined partners like the Kansas Forest Service and Ducks Unlimited on a series of federal grants to help landowners cut down trees around Rattlesnake Creek and the nearby Upper Arkansas and Cimarron river watersheds. So far, 30 miles of Rattlesnake Creek has been improved by removing invasive trees.

"Rebalancing water use in the Rattlesnake Creek watershed isn’t an easy task," cautions Mehl. "It's going to take effort from a lot of people and organizations, but The Nature Conservancy and I are committed to this work. We have to keep bringing people together to find the solutions that work for both nature and people."

The Nature Conservancy and I are committed to this work. We have to keep bringing people together to find the solutions that work for both nature and people.

Heidi Mehl, PhD, Director of Water & Agriculture Programs

Our Continued Commitment

Our work in the Rattlesnake Creek watershed reflects The Nature Conservancy’s long-term commitment to communities facing real and rising water challenges. With funding from the Walmart Foundation, we have continued partnering with farmers, local institutions and water managers to better understand what a resilient future looks like in a region where agriculture, ecosystems and water availability are deeply intertwined. This is not a one-off project but one part of a sustained effort to stand with farmers and communities as they navigate increasing risk and uncertainty.

A key milestone in this phase of work was the completion of an assessment of social and environmental conditions in Rattlesnake Creek using the LandScale platform. The assessment provides a shared, data-driven picture of the watershed, capturing local priorities around the resilience of water resources and agricultural production and overall health of the ecosystem. Importantly, LandScale goes beyond diagnosing challenges—it creates a common reference point that helps align farmers, companies and other partners around where action is most needed and where progress can be measured over time. You can explore the full Rattlesnake Creek LandScale assessment on the LandScale website.

Looking ahead, our next phase of work builds directly on this foundation. We are focused on advancing locally identified solutions designed by and for this region that also create credible pathways for companies sourcing from Rattlesnake Creek to invest in achieving shared outcomes. By helping connect on-farm practices, water management strategies and innovative financing approaches, we aim to enable companies to share in de-risking regenerative agriculture that supports long-term resilience for farmers and ecosystems alike. This is how landscape collaboration moves from assessment to action and how commitments translate into durable change on the ground. To learn more about the identified solutions, please see the “Transition Pathways” section in the Flyway and Farmland: Farmer Typology and Transition Pathways Report.

Find More Places We Protect

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