Rangeland Assessment and Monitoring Methods Guide

Landscape Toolbox Sagebrush Cooperative

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Tip: You can change the date range or scale at right to see remote sensing methods and types that are most relevant to your question.

Date Range [What is this?]

No date range specified
Pre-1972
1973 to 1985
1986 to 1995
1996 to 2001
2002-present

Scale [What is this?]

Plot (< 25 ac)
Site (25 to 2500ac)
Local (2500 to 25,000ac)
Small landscape (25,000 to 250,000ac)
Large landscape (250,000 to 2.5 million ac)
Regional (> 2.5 million ac)

Field Methods

Key:

*  Median expert rating

View details Wiki page

Field methods applicable to your question are listed below. The field methods have been rated by experts according to their precision, relative cost/effort. These three criteria are helpful for considering the tradeoffs when deciding which method is best for your application and the feasibility of implementing them. Selecting appropriate methods requires more in depth comparisons that are available with the compare button and information in the method wiki.

Sample design: Where you sample is every bit as important as how you sample. Sample design will determine whether or not your observations can address your overall objectives and question. An effective number and distribution of samples is required to make valid inferences from field data. Values for costs and level of required effort provided in the comparison tables are relative because the actual cost will depend on sample design. Visit our page on sample design.

Precision Effort/Cost Potential for Bias Name
View details 5 stars 3 stars 1 stars Line-point Intercept (for cover and composition)
View details 5 stars 2 stars 1 stars Quadrat Frequency
View details 4 stars 3 stars 2 stars Canopy Gap Intercept
View details 4 stars 4 stars 2 stars Density Quadrats (including Belt Transects)
View details 4 stars 3 stars 2 stars Dry Weight Rank Method
View details 4 stars 3 stars 2 stars Nested Frequency
View details 4 stars 3 stars 2 stars Photo Plots - Quantitative Assessment
View details 4 stars 4 stars 2 stars Plant Production (Double Sampling)
View details 4 stars 5 stars 1 stars Plant Production (Harvesting)
View details 4 stars 2 stars 2 stars Step-pin Transect Method
View details 3 stars 3 stars 2 stars Basal Gap Intercept
View details 3 stars 2 stars 3 stars Step Point Transect Method
View details 2 stars 3 stars 3 stars Daubenmire Method
View details 2 stars 2 stars 3 stars Pace Frequency
View details 2 stars 3 stars 4 stars Plant Production (Estimating by Weight)
View details 1 stars 2 stars 5 stars Ocular Cover Estimates (plots)

Don’t stop here! The information provided here is intended to be a first step to help you select the best method to address your objectives. The detailed information on each method and links to technical references that can be found in the abstracts should be consulted before making decisions on which method best suits your needs.

 

Remote Sensing Methods

Key:

  • *  Directly addresses question
  • *  Related to question
  • *  Useful with other method
  • *  Useful in limited cases
  • *  Best match
  • *  Possible match
  • View details Wiki page

Remote sensing methods applicable to your question are listed below. They are ranked by experts according to how well they can answer the question you selected as part of a complete analysis process. Sensors that work with a particular method or methods that work with data from a particular sensor will be highlighted by clicking on the items in the list. Deciding which method is best for your application will require more in depth comparisons available with the compare button and consideration of details contained in the full abstracts of each method.

Tested and Validated Methods

  • Relevance Name
  • View details 5 starsNet Primary Productivity Estimate
  • View details 5 starsLeaf-area Index
  • View details 5 starsFractional Cover Estimate
  • View details 5 starsFraction of Photosynthetically Active Radiation (fPAR)
  • View details 5 starsRegression Kriging
  • View details 4 starsSoil-adjusted Total Vegetation Index
  • View details 4 starsSoil-adjusted Vegetation Index
  • View details 4 starsEnhanced Vegetation Index
  • View details 4 starsNormalized Difference Vegetation Index
  • View details 4 starsModified Soil-adjusted Vegetation Index
  • View details 3 starsTasseled-cap Transformation
  • View details 2 starsUnsupervised Classification
  • View details 2 starsObject-based Classification
  • View details 2 starsSpectral Mixture Analysis
  • View details 2 starsSupervised Classification
  • View details 2 starsChange Detection
  • View details 2 starsCanopy/Texture Mapping

 

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Remote Sensor Types

  • Name Cost Resol. (m) Availability
  • ASTER Free/$ 15.0 On demand View details
  • ASTER Free/$ 30.0 On demand View details
  • ASTER Free/$ 90.0 On demand View details
  • AVIRIS $$$ 17.0 On demand View details
  • FORMOSAT-2 $$ 8.0 Daily View details
  • IKONOS $$$ 4.0 3 days View details
  • TM7 Free 30.0 16 days View details
  • TM7 Free 60.0 16 days View details
  • TM7 Free 15.0 16 days View details
  • MSS Free 80.0 18 days View details
  • TM5 Free 60.0 16 days View details
  • TM5 Free 30.0 16 days View details
  • Quickbird $$$ 2.5 1 to 3.5 days View details
  • Radarsat-1 $$ 50.0 4 to 6 days View details
  • Radarsat-2 $$ 50.0 On demand View details
  • RapidEye $$$ 5.0 Daily View details
  • SPOT1-4 $$ 20.0 1 to 4 days View details
  • SPOT1-4 $$ 10.0 1 to 4 days View details
  • SPOT5 $$ 10.0 1 to 4 days View details
  • SPOT5 $$ 2.5 1 to 4 days View details

Every remote sensing assessment or monitoring project involves a process of multiple procedures including image processing, often combinations of several analysis methods, and field validation or training samples. Examples of the full analysis process used in particular rangeland projects are given in the abstracts available by clicking on method names.

Methods in Development:

The methods listed here have been submitted by experts developing new analytical methods. Because these methods are either “in-development,” have not been well vetted through the peer-reviewed publication process, or have not yet been evaluated by experts for the Methods Guide, they are presented without rankings for your information. Clicking on the name will take you to a full abstract with the details of the method and the contact information for the experts who are working to apply it to rangeland questions.

 
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