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United States Department of Agriculture (USDA) 2005

ECOLOGY, RESTORATION, AND MANAGEMENT OF SEMI-ARID PRAIRIES IN THE NORTHERN GREAT PLAINS

Prairies Semi-Arid

United States Department of Agriculture (USDA) Research, Education & Economics Information System (REEIS)

Titre : ECOLOGY, RESTORATION, AND MANAGEMENT OF SEMI-ARID PRAIRIES IN THE NORTHERN GREAT PLAINS

Identification : NEB-44-069

Pays : Etats Unis

Durée : Nov 1, 2005 à Nov 30, 2010

Domaine : Management and Control of Forest and Range Fires ; Management of Range Resources

Partenaire : UNIVERSITY OF NEBRASKA LINCOLN,NE 68583

Objectifs
Objective 1 : Validate integers and descriptive levels used to estimate the integrated effects of all 3 components of the Sandhills Defoliatioin Response Index System (SanDRIS),a grazing management decision-support tool. Objective 2 : Determine critical levels of fall defoliation and soil water for western wheatgrass and needleandthread based on subsequent-year tiller density and herbage production on mixed-grass prairie. Objective 3 : Quantify late summer through spring precipitation regime effects on net primary production of mixed-grass prairie. Objective 4 : Quantify prescribed-burning by spring-grazing interaction effects on cheatgrass control and composition and/or yield of indigenous plant species on cheatgrass infested mixed-grass prairies. Objective 5 : Quantify plant community and spring-soil-water effects on forb establishment and growth when wildflowers are re-introduced into existing native graminoid plant communties

Présentation : USDA

Page publiée le 14 décembre 2015, mise à jour le 2 novembre 2017