Observations on the sensitivity of ers-1 sar image intensity to changes in aboveground biomass in young loblolly pine forests

Journal Article (Journal Article)

A study was conducted to evaluate the sensitivity of the microwave return recorded by the ERS-1 C-band synthetic aperture radar (SAR) to changes in above-ground woody biomass in young loblolly pine forests (dry weight biomass <6kgm-2). Radar backscattering coefficients were derived from ERS-1 SAR imagery collected over 15 test stands near Durham, North Carolina, United States. Ground reference data were collected in order to characterize the aboveground biomass of the pine trees in the test stands. Significant linear correlations (at p = 0.001 or better) were found between the radar backscattering and the various components of biomass (both wet and dry weight) of the pine canopy (e.g., bole biomass, stem biomass, needle biomass, canopy biomass and total biomass). The linear correlation coefficients ranged between 0.87 and 0.93. These results demonstrate the potential for using the C-band ERS-1 SAR to monitor biomass changes during the early successional stages in temperate coniferous forests, as well as throughout later successional stages in coniferous forests with lower overall growth rates, such as those found in boreal regions. © 1994 Taylor and Francis Ltd.

Full Text

Duke Authors

Cited Authors

  • Kasischke, ES; Bourgeau-Chavez, LL; Christensen, NL; Haney, E

Published Date

  • January 1, 1994

Published In

Volume / Issue

  • 15 / 1

Start / End Page

  • 3 - 16

Electronic International Standard Serial Number (EISSN)

  • 1366-5901

International Standard Serial Number (ISSN)

  • 0143-1161

Digital Object Identifier (DOI)

  • 10.1080/01431169408954048

Citation Source

  • Scopus