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LBA-ECO ND-11 Litter Decomposition, Carbon, and Nitrogen Dynamics in Agroforestry

Overview

DOIhttps://doi.org/10.3334/ORNLDAAC/915
Project
Release Date2009-03-31
Usage115 downloads

Description

This data set contains the results of an experiment to determine litter decomposition and dynamics of carbon and nitrogen release from plant litter of differing qualities which occur in combination in agroforestry systems. Reported in five ASCII files are (1) the initial values of soil and plant litter macronutrients, nitrogen; and carbon contents; (2) descriptions of the various experimental treatments; and (3) the final nitrogen and carbon composition of the plant litter and soil and calculated releases from the litter. The study was conducted at the Empresa Brasileira de Pesquisa Agropecuaria-Centro da Pesquisa Agroflorestal (EMBRAPA-CPAA) experimental station located north of Manaus on the BR 174 highway in the central Amazon Basin. The experimental plot, located in an open grassy field, was selected based on low, homogeneous soil C and nutrient contents, minimal prior disturbance, and no previous fertilizer application. The soil was a degraded typic Hapludox with the following soil properties for the upper 0-3 cm: pH in water of 5.05, 1.3 mg N/g, 18.0 mg C/g (automatic CN Analyzer, Elementar), 2.05 mg P/kg, 55.0 mg K/kg (Mehlich-1 extractable), 11.7 mg Ca/kg, and 4.6 mg Mg/kg (KCl extractable). The experiment was conducted in the field in small plots with treatments that vary in the ratio of plant litter of two plants: gliricidia (Gliricidia sepium (Jacq.) Kunth. ex Walp.) and cupuacu (Theobroma grandiflorum). Soil and litter samples were collected prior to and during the experiment. Resin bags were used to retain mineral nitrogen released from the plant litter.

Science Keywords

  • BIOSPHERE
  • VEGETATION
  • CARBON
  • BIOSPHERE
  • VEGETATION
  • LITTER CHARACTERISTICS
  • BIOSPHERE
  • VEGETATION
  • NITROGEN
  • LAND SURFACE
  • SOILS
  • CARBON
  • LAND SURFACE
  • SOILS
  • NITROGEN

Citation

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Crosscite Citation Formatter
Schwendener, C.M., J. Lehmann, P.B. de Camargo, R.C.C. Luizao, and E.C.M. Fernandes. 2009. LBA-ECO ND-11 Litter Decomposition, Carbon, and Nitrogen Dynamics in Agroforestry. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/915

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Data Files

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Data File (Granule)SizeDates
file4_15N_soil.csv 19.2KB 2002-07-11 to 2002-10-15
file5_15N_litter.csv 33.4KB 2002-07-11 to 2002-10-15
file2_litter_initial.csv 472 B 2002-07-11 to 2002-10-15
file3_treatment_details.csv 1.1KB 2002-07-11 to 2002-10-15
file1_soil_initial.csv 1.7KB 2002-07-11 to 2002-10-15

Companion Files

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Dataset has 1 companion files.

  • ND11_Nitrogen_Transfer_Leaf_Litter.pdf