Document Detail


Evaluating the utility and seasonality of NDVI values for assessing post-disturbance recovery in a subalpine forest.
MedLine Citation:
PMID:  21792518     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Forest disturbances around the world have the potential to alter forest type and cover, with impacts on diversity, carbon storage, and landscape composition. These disturbances, especially fire, are common and often large, making ground investigation of forest recovery difficult. Remote sensing offers a means to monitor forest recovery in real time, over the entire landscape. Typically, recovery monitoring via remote sensing consists of measuring vegetation indices (e.g., NDVI) or index-derived metrics, with the assumption that recovery in NDVI (for example) is a meaningful measure of ecosystem recovery. This study tests that assumption using MODIS 16-day imagery from 2000 to 2010 in the area of the Colorado's Routt National Forest Hinman burn (2002) and seedling density counts taken in the same area. Results indicate that NDVI is rarely correlated with forest recovery, and is dominated by annual and perennial forb cover, although topography complicates analysis. Utility of NDVI as a means to delineate areas of recovery or non-recovery are in doubt, as bootstrapped analysis indicates distinguishing power only slightly better than random. NDVI in revegetation analyses should carefully consider the ecology and seasonal patterns of the system in question.
Authors:
Brian Buma
Related Documents :
20866128 - Calibration sets and the accuracy of vibrational scaling factors: a case study with the...
19576538 - Factorial invariance of child self-report across race/ethnicity groups: a multigroup co...
9723148 - The dimensional structure of first episode psychosis: an exploratory factor analysis.
21832488 - Full counting statistics for noninteracting fermions: joint probability distributions.
20336838 - Baseline characteristics of dual-axis cervical accelerometry signals.
24056238 - Hypnotic assessment based on the recurrence quantification analysis of eeg recorded in ...
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-7-27
Journal Detail:
Title:  Environmental monitoring and assessment     Volume:  -     ISSN:  1573-2959     ISO Abbreviation:  -     Publication Date:  2011 Jul 
Date Detail:
Created Date:  2011-7-27     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8508350     Medline TA:  Environ Monit Assess     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Ecology and Evolutionary Biology & CIRES, University of Colorado, Boulder, 216 UCB, Boulder, CO, 80309, USA, brian.buma@colorado.edu.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Assessment of sediment quality in the Mediterranean Sea-Boughrara lagoon exchange areas (southeaster...
Next Document:  Computed tomography-guided stereotactic biopsy of intracranial lesions in pediatric patients.