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field_methods:utilization_-_grazed_class_method [2008/12/24 15:17]
kcolson
field_methods:utilization_-_grazed_class_method [2012/03/08 15:47] (current)
jgillan
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 +<​sup>​[[:​bug_reporting|Report a bug, broken link, or incorrect content]]</​sup>​[[http://​methods.landscapetoolbox.org|{{ field_methods:​methodsguide3.png?​220x120|}}]]
 ====== Utilization - Grazed Class Method (photo guides) ====== ====== Utilization - Grazed Class Method (photo guides) ======
-[[http://​www.rangelandmethods.org/​about/​get_involved|{{:​abstract_in_dev.gif|}}]]+[[http://​www.landscapetoolbox.org/​about/​get_involved|{{:​abstract_in_dev.gif|}}]]\\ 
 +written by Karen Colson and Jason Karl
  
 ===== Description and Uses ===== ===== Description and Uses =====
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 It can also be difficult to develop photo guides if they are not available and it is hard to take good photos of “average” plants. ​ However, a guide that is properly developed for a given species and a typical site, can usually be appled to all sites over a fairly broad area in good and bad production years without serious error. ​ It can also be difficult to develop photo guides if they are not available and it is hard to take good photos of “average” plants. ​ However, a guide that is properly developed for a given species and a typical site, can usually be appled to all sites over a fairly broad area in good and bad production years without serious error. ​
  
-Minimal training of observers is needed to use this method. It is important that observers are able to identify the plant species. Error and bias will decrease dramatically with the more on-the-ground experience the observer has.  The major problem with inexperienced observers is underestimation of use on more heavily grazed plants.+Minimal training of observers is needed to use this method. It is important that observers are able to identify the plant species. Error and bias will decrease dramatically with the more on-the-ground experience the observer has.  The biggest difference between experienced and inexperienced observers is that inexperienced observers tend to underestimate the use on more heavily grazed plants.
  
 ===== Manuals ===== ===== Manuals =====
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   *Schmutz, E.M., G.A. Holt, and C.C. Michaels. 1963. Grazed class method of estimating forage utilization. Journal of Range Management. 16:54-60.   *Schmutz, E.M., G.A. Holt, and C.C. Michaels. 1963. Grazed class method of estimating forage utilization. Journal of Range Management. 16:54-60.
  
-The following are sources of existing photo guides:+**The following are sources of existing photo guides:**
  
-(1) University of Arizona, Cooperative Extension Service and Agricultural+  *University of Arizona, Cooperative Extension Service and Agricultural
 Experiment Station, Tucson Arizona 85721. Bulletin A-73. Experiment Station, Tucson Arizona 85721. Bulletin A-73.
-(2) University of Idaho, College of Forestry, Wildlife and Range Science,+  *University of Idaho, College of Forestry, Wildlife and Range Science,
 Moscow, Idaho 83843. Station bulletin 54. Moscow, Idaho 83843. Station bulletin 54.
-(3) Montana State University. Forage Use - A Tool for Planning Range+  *Montana State University. Forage Use - A Tool for Planning Range
 Management. Extension Service. July 1988. Management. Extension Service. July 1988.
-(4) Kinney and Clary. 1994. A Photographic Utilization Guide for Key Riparian+  *Kinney and Clary. 1994. A Photographic Utilization Guide for Key Riparian
 Graminoids. USFS GTR-308. ​ Graminoids. USFS GTR-308. ​
    
 ===== Similar Approaches ===== ===== Similar Approaches =====
  
 +
 +Related utilization and residue measurement methods include:
 +  * [[Cole Browse Method]]
 +  * [[Extensive Browse Method]]
 +  * [[:​field_methods:​twig_length_measurement]]
 +  * [[Stubble Height]]
 +  * [[Paired Plot Method]]
 +  * [[comparative_yield_method]]
 +  * [[Utilization - Grazed Class Method]]
 +  * [[Herbaceous Removal-Height-Weight Method]]
 +  * [[Herbaceous Removal-Actual Weight Method]]
 +  * [[Herbaceous Removal-Ocular Method]]
 +  * [[:​field_methods:​landscape_appearance_method]]
 +  * [[:​field_methods:​pasture_condition_scoring]]
 +  * [[:​field_methods:​stubble_height]]
 +  * [[:​field_methods:​key_species_method]]
 +  * [[:​field_methods:​use_pattern_mapping]]
  
 ===== Additional Information ===== ===== Additional Information =====
  
  
 +===== Web Search Results =====
 +<​html>​
 +<script src="​http://​www.google.com/​jsapi"></​script>​
 +
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 +</​html>​
 +
 +===== Discussion/​Comments =====
 +<​sub>​**You must have an account and be logged in to post or reply to the discussion topics below. [[http://​abstracts.rangelandmethods.org/​doku.php/​Home?​do=login&​sectok=db3676cff5bcd873b609b4e582432d73|Click here]] to login or register for the site.**</​sub>​
 +~~DISCUSSION| ~~
  
field_methods/utilization_-_grazed_class_method.1230157056.txt.gz · Last modified: 2012/02/22 13:28 (external edit)