Forest Practices Branch

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Determining range readiness and growing degree-days (GDDs): rangeland health brochue 11

Author(s) or contact(s): D.A. Fraser
Source: Forest Practices Branch
Subject: Range Management
Series: Brochure
Other details:  Published 2006. Hardcopy is available.


Researchers in North Dakota have correlated leaf-stage development with growing degree-days (GDDs) in several native and introduced grass species. Their findings allow range managers with large districts to supplement field observations with mean daily temperature data from local weather stations to determine when various spring "turnout" pastures will be ready for grazing in a given year. In this document this process has been modified for British Columbia.

Download Brochure 84 PDF file (3318 KB)

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Updated October 17, 2008