Remote sensing for prediction of 1-year post-fire ecosystem condition
Leigh B. Lentile A D * , Alistair M. S. Smith B * , Andrew T. Hudak C , Penelope Morgan B , Michael J. Bobbitt B , Sarah A. Lewis C and Peter R. Robichaud CA Department of Forestry and Geology, University of the South, Sewanee, TN 37383, USA.
B Department of Forest Resources, University of Idaho, Moscow, ID 83844-1133, USA.
C Rocky Mountain Research Station, US Department of Agriculture Forest Service, Moscow, ID 83843, USA.
D Corresponding author. Email: lblentil@sewanee.edu
International Journal of Wildland Fire 18(5) 594-608 https://doi.org/10.1071/WF07091
Submitted: 12 July 2007 Accepted: 21 August 2008 Published: 10 August 2009
Abstract
Appropriate use of satellite data in predicting >1year post-fire effects requires remote measurement of surface properties that can be mechanistically related to ground measures of post-fire condition. The present study of burned ponderosa pine (Pinus ponderosa) forests in the Black Hills of South Dakota evaluates whether immediate fractional cover estimates of char, green vegetation and brown (non-photosynthetic) vegetation within a pixel are improved predictors of 1-year post-fire field measures, when compared with single-date and differenced Normalized Burn Ratio (NBR and dNBR) indices. The modeled estimate of immediate char fraction either equaled or outperformed all other immediate metrics in predicting 1-year post-fire effects. Brown cover fraction was a poor predictor of all effects (r2 < 0.30), and each remote measure produced only poor predictions of crown scorch (r2 < 0.20). Application of dNBR (1 year post) provided a considerable increase in regression performance for predicting tree survival. Immediate post-fire NBR or dNBR produced only marginal differences in predictions of all the 1-year post-fire effects, perhaps limiting the need for prefire imagery. Although further research is clearly warranted to evaluate fire effects data available 2–20 years after fire, char and green vegetation fractions may be viable alternatives to dNBR and similar indices to predict longer-term post-fire ecological effects.
Additional keywords: burn severity, char, Landsat ETM+, ponderosa pine, subpixel, unmixing.
Acknowledgements
The present fieldwork component of the current study was funded by the Black Hills National Forest through In-Service Agreement No. 0203–01–007, Monitoring Fire Effects and Vegetation Recovery on the Jasper Fire, Black Hills National Forest, South Dakota to Rocky Mountain Research Station and Colorado State University. The subsequent research was supported in part by funds provided by the Rocky Mountain Research Station, Forest Service, US Department of Agriculture (03-JV-11222065–279) and the USDA/USDI Joint Fire Science Program (Projects 03–2-1–02 and 05–4-1–07). Partial support for Smith was obtained from the NSF Idaho EPSCoR Program and by the National Science Foundation under award number EPS-0814387. We thank the Associate Editor, Mark Cochrane and the other anonymous reviewer whose comments greatly improved the present manuscript.
Atkinson PM, Cutler MEJ , Lewis H (1997) Mapping sub-pixel proportional land cover with AVHRR imagery. International Journal of Remote Sensing 18, 917–935.
| Crossref | GoogleScholarGoogle Scholar |
Borel CC , Gerstl SAW (1994) Non-linear spectral mixing models for vegetative and soil surfaces. Remote Sensing of Environment 47, 403–416.
| Crossref | GoogleScholarGoogle Scholar |
Chen X, Vierling L, Rowell E , DeFelice T (2004) Using Lidar and effective LAI to evaluate IKONOS and Landsat 7 ETM+ vegetation estimates in a ponderosa pine forest. Remote Sensing of Environment 91, 14–26.
| Crossref | GoogleScholarGoogle Scholar |
Drake NA, Mackin S , Settle JJ (1999) Mapping vegetation, soils, and geology in semiarid shrublands using spectral matching and mixture modeling of SWIR AVIRIS imagery. Remote Sensing of Environment 68, 12–25.
| Crossref | GoogleScholarGoogle Scholar |
Elvidge CD (1990) Visible and near-infrared reflectance characteristics of dry plant materials. International Journal of Remote Sensing 11, 1775–1795.
| Crossref | GoogleScholarGoogle Scholar |
Hudak AT, Morgan P, Bobbitt MJ, Smith AMS, Lewis SA, Lentile LB, Robichaud PR, Clark JT , McKinley RA (2007b) The relationship of multispectral satellite imagery to immediate fire effects. Fire Ecology 3, 64–90.
Keyser TL, Smith FW, Lentile LB , Shepperd WD (2006) Modeling post-fire mortality of ponderosa pine following a mixed-severity wildfire in the Black Hills: the role of tree morphology and direct fire effects. Forest Science 52, 530–539.
Lentile LB, Smith FW , Shepperd WD (2005) Patch structure, fire-scar formation and tree regeneration in a large mixed-severity fire in the South Dakota Black Hills, USA. Canadian Journal of Forest Research 35, 2875–2885.
| Crossref | GoogleScholarGoogle Scholar |
Lentile LB, Morgan P, Hudak AT, Bobbitt MJ, Lewis SA, Smith AMS , Robichaud PR (2007b) Post-fire burn severity and vegetation response following eight large wildfires across the western US. Fire Ecology 3, 91–108.
Robichaud PR, Lewis SA, Laes DYM, Hudak AT, Kokaly RF , Zamudio JA (2007) Post-fire soil burn severity mapping with hyperspectral image unmixing. Remote Sensing of Environment 108, 467–480.
| Crossref | GoogleScholarGoogle Scholar |
Safford HD, Miller JD, Schmidt D, Roath B , Parsons A (2007) BAER soil burn severity maps do not measure fire effects to vegetation: a comment on Odion and Hanson (2006). Ecosystems 11, 1–11.
| Crossref | GoogleScholarGoogle Scholar |
Smith AMS , Hudak AT (2005) Estimating combustion of large downed woody debris from residual white ash. International Journal of Wildland Fire 14, 245–248.
| Crossref | GoogleScholarGoogle Scholar |
Smith AMS, Wooster MJ, Drake NA, Dipotso FM, Falkowski MJ , Hudak AT (2005) Testing the potential of multi-spectral remote sensing for retrospectively estimating fire severity in African savannahs environments. Remote Sensing of Environment 97(1), 92–115.
| Crossref | GoogleScholarGoogle Scholar |
Smith AMS, Drake NA, Wooster MJ, Hudak AT, Holden ZA , Gibbons CJ (2007a) Production of Landsat ETM+ reference imagery of burned areas within Southern African savannahs: comparison of methods and application to MODIS. International Journal of Remote Sensing 28, 2753–2775.
| Crossref | GoogleScholarGoogle Scholar |
Smith AMS, Lentile LB, Hudak AT , Morgan P (2007b) Evaluation of linear spectral unmixing and ΔNBR for predicting post-fire recovery in a N. American ponderosa pine forest. International Journal of Remote Sensing 28, 5159–5166.
| Crossref | GoogleScholarGoogle Scholar |
Stroppiana D, Pinnock S, Pereira JMC , Gregoire JM (2002) Radiometric analysis of SPOT-VEGETATION images for burnt area detection in Northern Australia. Remote Sensing of Environment 82, 21–37.
| Crossref | GoogleScholarGoogle Scholar |
Theseira MA, Thomas G , Sannier CAD (2002) An evaluation of spectral mixture modeling applied to a semi-arid environment. International Journal of Remote Sensing 23, 687–700.
| Crossref | GoogleScholarGoogle Scholar |
Theseira MA, Thomas G, Taylor JC, Gemmell F , Varjo J (2003) Sensitivity of mixture modelling to end-member selection. International Journal of Remote Sensing 24(7), 1559–1575.
| Crossref | GoogleScholarGoogle Scholar |
Townshend JGR, Huang C, Kalluri SNV, Defries RS , Liang D (2000) Beware of per-pixel characterization of land cover. International Journal of Remote Sensing 21(4), 839–843.
| Crossref | GoogleScholarGoogle Scholar |
Trumbore S (2006) Carbon respired by terrestrial ecosystems – recent progress and challenges. Global Change Biology 12(2), 141–153.
| Crossref | GoogleScholarGoogle Scholar |
Vafeidis AT , Drake NA (2005) A two-step method for estimating the extent of burnt areas with the use of coarse-resolution data. International Journal of Remote Sensing 26(11), 2441–2459.
| Crossref | GoogleScholarGoogle Scholar |
Verstraete MM , Pinty B (1996) Designing optimal spectral indices for remote sensing applications. IEEE Transactions on Geoscience and Remote Sensing 34(5), 1254–1265.
| Crossref | GoogleScholarGoogle Scholar |
van Wagtendonk JW, Root RR , Key CH (2004) Comparison of AVIRIS and Landsat ETM+ detection capabilities for burn severity. Remote Sensing of Environment 92, 397–408.
| Crossref | GoogleScholarGoogle Scholar |
Wessman CA, Bateson CA , Benning TL (1997) Detecting fire and grazing patterns in tallgrass prairie using spectral mixture analysis. Ecological Applications 7(2), 493–511.
| Crossref | GoogleScholarGoogle Scholar |
Wimberly MC , Reilly MJ (2007) Assessment of fire severity and species diversity in the southern Appalachians using Landsat TM and ETM+ imagery. Remote Sensing of Environment 108, 189–197.
| Crossref | GoogleScholarGoogle Scholar |
* Leigh B. Lentile and Alistair M. S. Smith contributed equally to the present paper.