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Biogeochemical cycling in terrestrial ecosystems - Modeling, measurement, and remote sensing

D. L. Peterson, Pamela A. Matson, John Lawless, John D. Aber, Peter M. Vitousek

Abstract

The use of modeling, remote sensing, and measurements to characterize the pathways and to measure the rate of biogeochemical cycling in forest ecosystems is described. The application of the process-level model to predict processes in intact forests and ecosystems response to disturbance is examined. The selection of research areas from contrasting climate regimes and sites having a fertility gradient in that regime is discussed, and the sites studied are listed. The use of remote sensing in determining leaf area index and canopy biochemistry is analyzed. Nitrous oxide emission is investigated by using a gas measurement instrument. Future research projects, which include studying the influence of changes on nutrient cycling in ecosystems and the effect of pollutants on the ecosystems, are discussed.

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Key concepts: Biogeochemical cycle, Environmental science, Ecosystem, Cycling, Terrestrial ecosystem, Forest ecology, Remote sensing, Disturbance (geology)