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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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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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Greater sage-grouse (Centrocercus urophasianus) populations are declining in Utah and other western states due to the degradation of their seasonal habitats from the encroachment of pinyon-juniper trees. This project evaluated the ecological viability of using "lop and scatter" methods to mechanically remove encroaching PJ trees to manage sage-grouse winter habitat at a study site in Ashley National Forest.

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The Apache-Sitgreaves National Forest (ASNF) utilized over 25 million funding from the American Recovery and Reinvestment Act (ARRA) to support projects that increase local employment, support forest restoration and fire mitigation, and boost local economy. Projects included forest restoration and fuels reduction, recreation and related road improvements, forest fire rehabilitation efforts, and greenhouse construction on the Fort Apache Indian Reservation.

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This project is assessing the role of Woody-Plant Encroachment and brush management on the carbon cycle, carbon storage potential, biodiversity, and rangeland ecosystem stability and resilience. Data collected from this project can inform land managers on costs and benefits of different brush management options and factors. 

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The first wildlife overpass was constructed by the Canadian government in Banff National Park in 1982 to reduce wildlife collisions. Till 2022, six overpasses and 38 underpasses have been constructed across Banff, reducing wildlife collisions by 80 percent. The project started with opposition and criticism from the public doubting whether animals would use the structure.

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The iconic and productive Sonoran Desert landscapes of the Tuscon Basin are threatened by Buffelgrass, an invasive species introduced to the area in the 1930s. Buffelgrass alters the fire regime and is a threat to ecosystems, and human life and property. The Southern Arizona Buffelgrass Coordination Center was established in 2008 to bring stakeholders together to remove Buffelgrass effectively.  

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Bird Track Springs is a 2-mile reach of the Upper Grande Ronde River in eastern Oregon that has been degraded and altered by human activity. The once multi-threaded, well-connected river and floodplain became a single-threaded river with little connectivity and degraded habitat. This project aims to reconnect the river to its floodplain, increase habitat complexity, and restore salmonid populations. 

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The Blue Hole Cienega Restoration Project aims to restore the Blue Hole Ciénega, one of the largest remaining ciénegas in the Southwest. Close to 95% of ciénegas have been lost or damaged due to farming, overgrazing, draining, channelization, and drying during development.

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The Las Cienegas National Conservation Area in Arizona is home to five of the rarest community types in the American Southwest. Managers constantly combat woody-shrub encroachment onto valuable grasslands, specifically the species velvet mesquite (Prosopis velutina). The Bureau of Land Management and the Nature Conservancy partnered to evaluate the condition of resources and to review monitoring protocols.  

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BLM is leading the construction and maintenance of a system of up to 11,000 miles of strategically placed fuel breaks to control wildfires within a 223-million-acre area in the Great Basin that includes portions of Idaho, Oregon, Washington, California, Nevada and Utah. Fuel breaks would be implemented along roads or rights-of-way on BLM-administered lands.

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Tomorrow’s Water led by Playa Lakes Joint Venture (PLJV) is an organization working to ensure water availability under immediate and future drought conditions in the Ogallala Aquifer region. PLJV restores playas to enhance water availability and quality, helps communities increase irrigation efficiency, and empowers communities to establish water management plans. 

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The masked bobwhite quail (Colinus virginianus ridgwayi), a former popular game bird, has been locally extinct in the U.S. Sonoran Desert since the 1990s due to livestock overgrazing and drought. Invasive grass species further degraded their habitat. Buenos Aires National Wildlife Refuge was established for the reintroduction of masked bobwhite quail and habitat restoration. 

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Sandstone glades of the Southern Cumberland Plateau are rare and unique plant communities exhibiting some of the richest endemic floras in the eastern United States. As a part of larger conservation initiative to rehabilitate and reconnect glade patches with the surrounding forest ecosystem, USFS at William B. Bankhead National Forest conduct a pilot project on a 3-acre glade.

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Curtis Prairie at the University of Wisconsin-Madison Arboretum is the site of the world's first ecological restoration project. Begun in 1936 by Dr. Theodore Sperry, the project has been ongoing for more than seventy years and has yielded a wealth of research data about the dynamics of tallgrass prairie ecosystems and the practices most effective in their restoration and management.

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26,000 acres of Eastern Mojave Desert near Las Vegas, Nevada, is a specially managed area that receives Mojave Desert tortoises (Gopherus agassizii) translocations. A 2011 Revised Recovery Plan aims to increase population densities of the tortoise by increasing native plant coverage and reducing invasive plant presence. 

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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.

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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. 

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Havasu National Wildlife Refuge is threatened by a large population of invasive Feral Swine (Sus scrofa). Feral Swine negatively impact native vegetation and wildlife, cause damage to human property and infrastructure, and are a public health and safety threat. In 2016, refuge staff and many collaborators began to work towards Feral Swine eradication within the refuge.  

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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.

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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.

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