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direct linkages between RS and canopy chemistry (A) and the subsequent indirect linkages to belowground function (B) and the microbial community (C). The indirect linkages represent the optical surrogacy hypothesis. Belowground attributes are not
measured directly via RS, but rather RS of the forest canopy was able to provide detailed
information regarding belowground process.
8.4.3 Experiment Prairie Grassland System: Cedar Creek
Example
Vegetation differences between prairie and forested ecosystems have important consequences for above- and belowground linkages. Detrital inputs in forests are dominated by leaf litter, whereas they are dominated by root exudates and turnover in
Fig. 8.3 Imaging spectroscopy links to several layers of ecological processes in aspen forests. (a)
Partial least squares (PLS) prediction (pred) for condensed tannin concentration from AVIRIS data
compared to observed (obs) tannin. (b) PLS prediction (pred) for soil b-glucosidase activity compared to observed (obs) b-glucosidase. (c) PLS prediction from AVIRIS spectra for bacterial diversity compared to observed bacterial diversity, where bacterial diversity is the first axis of an NMDS
ordination of amplicon sequencing of rDNA (525f and 806r primers). (Tannin and soil enzyme
data are from Madritch et al. (2014))
M. Madritch et al.
direct linkages between RS and canopy chemistry (A) and the subsequent indirect linkages to belowground function (B) and the microbial community (C). The indirect linkages represent the optical surrogacy hypothesis. Belowground attributes are not
measured directly via RS, but rather RS of the forest canopy was able to provide detailed
information regarding belowground process.
8.4.3 Experiment Prairie Grassland System: Cedar Creek
Example
Vegetation differences between prairie and forested ecosystems have important consequences for above- and belowground linkages. Detrital inputs in forests are dominated by leaf litter, whereas they are dominated by root exudates and turnover in
Fig. 8.3 Imaging spectroscopy links to several layers of ecological processes in aspen forests. (a)
Partial least squares (PLS) prediction (pred) for condensed tannin concentration from AVIRIS data
compared to observed (obs) tannin. (b) PLS prediction (pred) for soil b-glucosidase activity compared to observed (obs) b-glucosidase. (c) PLS prediction from AVIRIS spectra for bacterial diversity compared to observed bacterial diversity, where bacterial diversity is the first axis of an NMDS
ordination of amplicon sequencing of rDNA (525f and 806r primers). (Tannin and soil enzyme
data are from Madritch et al. (2014))
M. Madritch et al.