The Sonoran Desert ecosystem was degraded by agricultural development and groundwater pumping from the 1930s to 1970s. This project sought to restore the lowland desert by reestablishing perennial shrubs. The team determined historic species composition on a study site, acquiring seeds of those species, introduce them to the site, and provide them with extra water for establishment.
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Nature-Based Solutions Case Study Search
This database contains over 400 implementations of nature-based solutions. Use the filters to identify the case studies most relevant to you.
While all cases here exemplify applications of NBS strategies, they were gathered from various sources and not all were written using the framing of nature-based solutions. To qualify as a nature-based solution, a project must provide benefits to both people and nature. In some instances, the human benefits are present but not emphasized in the case write ups; these cases were included because they still provide useful information to learn from.
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In Florida's humid climate, strawberry growers are in a constant battle with two kinds of fruit rot. Using a decision support system, they can save money by spraying fields only when the plant diseases are a threat, saving up to $400 per acre per year.
Through no-till and cover-crop practices, the soil health management system an Ohio farmer practices restore and re-carbonize soil. The no-till practices increase crop yields by 36-44%, sequesters around 960 kg of carbon per hectare per year, and reduce fertilizer and herbicide use by 75 percent.
Due to extreme flooding events and excessive nitrogen levels in the Cedar River Watershed, the City of Cedar Rapids led the Middle Cedar Partnership Project to reduce nutrient runoff and improve soil health. The partnership collaborated with local farmers, landowners, and conservation organizations to implement strategies to reduce nutrient runoff, mitigate flood risk, and improve soil health.
Encompassing 100 acres of tallgrass prairie converted into agricultural land and 60 acres of woodland along a creek, Homestead National Historical Park underwent restoration by the National Park Service in 1939 to address severe erosion and improve water quality and soil productivity to support native plants and wildlife.
The use of organic amendments such as compost is a potential tool for grassland restoration. Compost additions can promote soil water retention and plant productivity, and reduce erosion. Cost is a major barrier to this technique. This study worked to understand and quantify the ecological benefits of compost addition, in the hopes of promoting its economic viability as a restoration method.
The Nature Conservancy led the project to restore 7,100 acres of farmland to functional flood plain and return its ability to sustain native plant and wildlife species. In 2007, 180,000 trees, 8,000 pounds of seed, and 90,000 upland shrubs and trees have been planted in 1,400 acres of Emiquon.
The BLM led the restoration of sagebrush steppe and riparian plant communities on 75,000 acres of Eastern Oregon rangeland. Treatment focuses on removing western juniper, a desert conifer species that is spreading across the landscape and outcompeting other desert plants. Restoration efforts used a sequential, three-step approach: juniper cutting, controlled burns, and in some cases, aerial reseeding.
Since 2004, A.T. & Lucinda Cole, founders of the Pitchfork Ranch in New Mexico, have been working to restore the ciénaga habitat that had been degraded by overgrazing. They constructed over 200 in-channel and 800 drainage grade-control structures, implemented sustainable gazing, replanted tree and vegetation, and reintroduced endangered wildlife species.
Clayton County Water Authority (CCWA) has converted from spray irrigation-land application to constructed wetlands to treat municipality wastewater for Clayton County, Georgia. Constructed wetlands lower construction costs from $10 a gallon under the conventional methods to $4.73 a gallon. They also reduce land use by 75%, save energy, and reduce equipment, materials, and maintenance cost.
In 2015, the Jennings County Soil and Water Conservation District launched the "Share Some Space" program to address the declining pollinator population by creating new habitats across the county. Over four and a half years, the district collaborated with local, state, and national partners to educate the public about the importance of pollinators.
Since 2009, the Grand Teton National Park (GTNP) has been working to restore 4,500 acres of converted hay fields to their natural sagebrush conditions—conducting controlled experiments, initial restoration, and an adaptive management approach to achieve long-term, high quality ecological restoration goals.
Local organizations in Knox County, Indiana, campaigned to raise awareness of the environmental and economic destruction that encroaching invasive species can have on communities. Representatives from the agriculture, horticulture and landscaping industries collaborated with conservation experts and the county attorney to determine the scope of an ordinance proposal that would ban 64 invasive plant species in the county.
The Nature Conservancy led the restoration of abandoned agricultural fields on the Cobra Ranch property in Klondyke, Arizona. The initial goal was to establish native grass ground cover. The project has since expanded to include multiple ecosystem improvement objectives, such as increasing water infiltration and aquifer recharge, and promoting sustainable farming and grazing practices.
In 2011, Tropical Storm Irene brought intense flooding to Otter Creek, causing severe damage to the city of Rutland, but minimal damage to Middlebury, located only 30 miles downstream. Middlebury’s conservation and restoration of Otter Creek’s floodplain and wetlands mitigated potential flood impacts and damage.
Ranch owners in the Alter Valley of Southern Arizona have worked with the US Natural Resource Conservation Service since 1984 to scientifically monitor range vegetation and conduct brush management to care for the 600,000 plus acre watershed surrounding the Ranch. Mechanical removal was conducted in 1984 – 1990 on 1,000 acres of shrubland.
Big sacaton (Sporobolus wrightii) once covered riparian floodplains throughout the southwestern United States and northern Sonora, Mexico. Today, these grasslands occupy less than 5% of their previous range. This restoration project evaluated the role of arbuscular mycorrhizae in the establishment and survival of sacaton at the Nature Conservancy's Patagonia/Sonoita Creek preserve near Patagonia, Arizona.
Five years after the Allen Road Fire, the U.S. government established the Pocosin Lakes National Wildlife Refuge in the North Carolina cost to restore the ditched, dried, and burned peatlands and convert them back into carbon sinks. Refuge managers are working in a 19-year effort to construct an equally ingenious hydrologic system.
To restore the endangered Silvery Minnow, the Bureau of Reclamation, U.S. Fish and Wildlife Service, and the Save Our Bosque Task Force worked closely with a local landownerto restore approximately 0.8 river miles of critical habitat along the Rio Grande River. The project involved mechanical bank lowering and the creation of side channels and embayments.
After the 2018 Martin Fire, the USDA and the Nevada Department of Wildlife completed a restoration project on public and private land to rehabilitate the burned rangeland. Using herbicide and previously tested experimental seed mixes, the project sought to control cheatgrass and establish both native and non-native perennial plant species to lessen the long-term wildfire damage on the rangeland.