Claim · model-written summary
Nitrogen increase in litter relative to faster dry matter loss suggests a narrowing of the C/N ratio as decomposition progressed.
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Verbatim
e0“Changes in mineral composition were observed for current growth and standing crop of prairie bluestem, Andropogon spp.”
e1“Increasing nitrogen in the litter, compared to relatively more rapid dry—matter losses, suggested a narrowing of the C/N ratio as decomposition progressed”
Title
Dry Matter Losses and Mineral Leaching in Bluestem Standing Crop and Litter
Melvin R. Koelling; C. L. Kucera Ecology 1965. doi:10.2307/1934887
Other claims from this paper (9)
- Observation Considerable leaching or transfer of nitrogen, phosphorus, magnesium and potassium occurs in the standing crop before litter deposition.
- Observation Potassium showed a 96% turnover in the vegetation before the end of the first year.
- Observation Silica showed a distinct rising trend with age of the standing crop.
- Observation Silica accounted for a major portion of total mineral oxide through the litter phase.
- Intervention effect Dry matter losses in litter were about 50% more rapid for foliage than for flower stalks.
- Observation Total ash after 2 years of litter decomposition was approximately twice the initial level in foliage and flower stalks.
- Observation Nitrogen percentage showed a decreasing trend in the standing vegetation during the first year.
- Observation Nitrogen levels increased on a dry weight basis during the litter phase.
- Intervention effect Foliage from control plots had higher nitrogen concentrations than foliage from burned plots.