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field_methods:canopy_gap_intercept [2009/09/15 16:15]
jasonkarl
field_methods:canopy_gap_intercept [2013/09/24 16:02] (current)
jgillan [Manuals]
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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|}}]]
 +
 ====== Canopy Gap Intercept ====== ====== Canopy Gap Intercept ======
- [[http://​www.rangelandmethods.org/​about/​get_involved|{{:​abstract_in_dev.gif|}}]]+ 
 +[[http://​www.landscapetoolbox.org/​about/​get_involved|{{:​abstract_in_dev.gif|}}]]\\ 
 +written by Jason Karl and Karen Colson 
 + 
 +===== Method Type ===== 
 +Cover - Quantitative 
 + 
 +===== Other Names ===== 
 +None known
  
 ===== Description and Uses ===== ===== Description and Uses =====
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 ===== Manuals ===== ===== Manuals =====
  
-    * [[http://usda-ars.nmsu.edu/Monit_Assess/monitoring_main.php|Monitoring Manual for Grasslands, Shrublands, and Savanna Ecosystems (Herrick et al. 2005)]]. ​+    * [[http://jornada.nmsu.edu/monit-assess/manuals/​monitoring|Monitoring Manual for Grasslands, Shrublands, and Savanna Ecosystems (Herrick et al. 2005)]]. ​
  
   * [[http://​www.blm.gov/​nstc/​library/​pdf/​MeasAndMon.pdf|Measuring and Monitoring Plant Populations (Elzinga et al. 2001)]].  ​   * [[http://​www.blm.gov/​nstc/​library/​pdf/​MeasAndMon.pdf|Measuring and Monitoring Plant Populations (Elzinga et al. 2001)]].  ​
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 === Video Instructions/​Demonstration === === Video Instructions/​Demonstration ===
  
-<​flashplayer width=600 Height=400>​file=http://​usda-ars.nmsu.edu/monit_assess/​Videos/​CanGap/​CanopyGapIntercept.flv</​flashplayer>​+<​flashplayer width=600 Height=400>​file=http://​jornada.nmsu.edu/sites/​jornada.nmsu.edu/​files/​Videos/​CanGap/​CanopyGapIntercept.flv</​flashplayer>​
 \\ \\
-<​sub>​**Video from the [[http://usda-ars.nmsu.edu|USDA-ARS Jornada Experimental Range]]**</​sub>​+<​sub>​**Video from the [[http://jornada.nmsu.edu|USDA-ARS Jornada Experimental Range]]**</​sub>​
  
  
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 ===== Similar Approaches ===== ===== Similar Approaches =====
  
-[[Basal Gap Intercept]] measures the proportion of the line covered by large gaps between plant bases and is important as an indicator of runoff and water erosion. ​ Herrick et al. 2005 suggest using both the canopy and gap intercept methods together in combination with the cover indicators from the [[line-point intercept]] and the [[soil stability ​test]] to help determine whether observed erosion changes are due to loss of cover, changes in spatial distribution of vegetation or reduced soil stability. ​   ​+[[Basal Gap Intercept]] measures the proportion of the line covered by large gaps between plant bases and is important as an indicator of runoff and water erosion. ​ Herrick et al. 2005 suggest using both the canopy and gap intercept methods together in combination with the cover indicators from the [[line point intercept]] and the [[soil stability]] to help determine whether observed erosion changes are due to loss of cover, changes in spatial distribution of vegetation or reduced soil stability. ​   ​
  
  
 ===== Additional Information ===== ===== Additional Information =====
  
 +===== Data Forms =====
 +
 +=== Printable data forms for the Canopy Gap Intercept method can be downloaded from  ===
 +  * [[http://​jornada.nmsu.edu/​sites/​jornada.nmsu.edu/​files/​gap_intercept_dataform.pdf|Jornada Experimental Range Monitoring and Assessment Site]]
 +
 +=== Electronic data forms can be found at the following sites ===
 +  * Canopy gap intercept data can be recorded directly into the [[databases:​Rangeland Database]] in the field.
 +  * An Excel version of the canopy gap Intercept method data form that automatically calculates cover percentages can be found at the [[http://​jornada.nmsu.edu/​sites/​jornada.nmsu.edu/​files/​gap_automated_calc_11june07.xls|Jornada Experimental Range Monitoring and Assessment Site]].
 +  * An version of the canopy gap Intercept Excel form that is compatible with electronic PDAs can also be downloaded from the [[http://​jornada.nmsu.edu/​sites/​jornada.nmsu.edu/​files/​gap_automated_calc_11june07_unprotected.xls|Jornada Experimental Range Monitoring and Assessment Site]]
 +
 +===== Web Search Results =====
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 +===== 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/canopy_gap_intercept.1253052925.txt.gz · Last modified: 2012/02/22 13:28 (external edit)