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Title:   Author  item
                                            McMurtrey Iii, Jamesitem
                                            MIDDLETON, E - NASA-GSFCitem
                                            CAMPBELL, P - NASA-GSFCitem
                                            CORP, L - NASA-GSFCitem
                                            McCarty, Gregoryitem
                                            KANGAS, P - UNIV OF MD, COLLEGE PARK
  Submitted to: American Society of Agronomy
                                    Publication Type: Abstract Only
                                    Publication Acceptance Date: 3/27/2001
                                    Publication  Date: 10/22/2001
                                    Citation: N/AInterpretive Summary:
                                Technical Abstract: The research describes the spectral differences in leaf litter from trees of a riparian zone surrounding an agricultural field cropped area. The tree litter was characterized for both spectral fluorescence and reflectance attributes. A chemical analysis of the percent carbon and nitrogen present in the litter material as well as in the xylem and phloem was conducted.  The results of the study indicated that several groups of trees species could be distinguished by the spectral properties of their leaf litter. Data of this type could be used to recommend the design of sensing systems for the detection of the distribution of different tree species by remote sensing during the dormant winter period. Discrimination of the distribution of different deciduous tree stands has been a problem during the green growth period. The study also found that different tree species accumulated carbon and especially nitrogen in there dead leaf litter at  different rates. This leads us to believe that certain tree species maybe better at mitigating the nitrogen load coming off agricultural areas and in sequestering the carbon in the riparian zones around farm fields. The work is projected to lead to methods for determining the amounts and distribution of carbon and nitrogen sequestration in ecological zones surrounding agriculture.


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