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Accueil du site → Projets de développement → Projets de recherche pour le Développement → 2019 → KEEPING MARGINAL AGRICULTURAL LANDS WORKING : RESTORING MULTIPLE SERVICES IN SPECIES-POOR RANGELANDS

United States Department of Agriculture (USDA) 2019

KEEPING MARGINAL AGRICULTURAL LANDS WORKING : RESTORING MULTIPLE SERVICES IN SPECIES-POOR RANGELANDS

Rangelands Colorado Restoration

United States Department of Agriculture (USDA) National Institute of Food and Agriculture

Titre : KEEPING MARGINAL AGRICULTURAL LANDS WORKING : RESTORING MULTIPLE SERVICES IN SPECIES-POOR RANGELANDS

Identification : COLW-2018-08047

Pays : Etats Unis

Durée : 01 MAY 2019 // TERM : 30 APR 2021

Résumé
Rangelands cover 31% of the total land area in the United States. They provide society with goods (e.g., livestock production/food), services (e.g., wildlife habitat, conservation, water quality), and contribute to the livelihood of millions. Urbanization patterns, shifts in agricultural production, and decreases in populations involved in agriculture have led to significant changes in the emphases placed on US rangelands. Additional benefits such as conservation, recreation, wildlife habitat, carbon storage, and water quality are increasingly being used as rationale for investment in these lands and protection from their conversion to non-agriculture use such as development. In areas where livestock production is declining, and as demand for ecosystem services is rising, diversification could become an essential tool for sustaining production and ecosystem services. Restoration has been shown to simultaneously increase multiple ecosystem services in agro-ecosytsems, and is increasingly seen as a key component in rangeland conservation programs. Restoration research shows that there may be considerable trade-offs between different services, but that higher levels of species diversity results in higher total provision of multiple ecosystem services. This research will focus on four economically and ecologically important rangeland ecosystem services : forage production, habitat provision, soil stability and health, and resistance to invasion. Using seed-based restoration techniques in a fallow grazing field in Colorado, this research will test whether we can mitigate trade-offs between key ecosystem services by increasing species diversity in rangeland systems. The project will follow the development of the four ecosystem services under different seeding strategies to quantify trade-offs. By combining local experimental data with landscape data on long-term restoration outcomes collected across Colorado, this research can help understand the potential benefits of seed addition in rangeland management. Additionally, the project will investigate how rainfall conditions may determine the importance of species diversity, both in total services that an ecosystem provides as well as in reducing the trade-offs between services. Overall, this research will provide a focused assessment of whether seeding is an effective tool for enhancing ecosystem services in degraded rangelands, across a large scope of species and diversity levels. It will inform potential strategies for diversifying rangeland services both in large-scale public land management as well as small-scale individual landowner management. ?

Performing Institution : UNIVERSITY OF COLORADO BOULDER, COLORADO 80309
Investigator : Shackelford, N.

Financement : $165,000

Présentation : USDA (NIFA)

Page publiée le 21 novembre 2019