Fire is an effective management tool for reconstructed prairies. However, due to safety concerns, road departments and other prairie managers are sometimes reluctant to use fire. Therefore, alternative techniques to manage reconstructed prairie, such as mowing or haying, need to be considered. The goal of this study is to determine if mowing and/or haying can be used to manage vegetation in lie...

This paper discusses causes of error in calculated tangent heights for IR limb sounders, with the work focussing on the MIPAS instrument on ENVISAT. Three causes of inaccuracy are investigated: 1) the refractive index of the atmosphere; 2) the ray tracing method; 3) the modelled atmosphere. The authors conclude that only the atmosphere used in the model has any significant effect on calculated ...

African savanna woodlands have an unpredictable spatial and temporal variability of woody biomass densities as a result of the interplay of rainfall, soil nutrients, fire, people and herbivores. These woodlands are characterised by heterogeneous species distribution with irregular vertical structures. A large percentage of rural communities in southern Africa rely on communal woodlands to meet ...

The aim of the study was to compare subjective evaluations of the heights of some kitchen facilities and furniture with an expert's opinion of the same heights and with the height recommendations derived from the subjects' anthropometric data. Experiments were conducted in a mock-up simulator, where the subjects, a group of the Finnish elderly (N = 55), performed small tasks similar to the typi...

Nitrous oxide emissions during freeze/thaw periods contribute significantly to annual soil N2O emissions budgets in middle- and high-latitude areas; however, the freeze/thaw-related N2O emissions from waterlogged soils have hardly been studied in the Hulunber Grassland, Inner Mongolia. For this study, the effects of changes in land use/cover types on N2O emissions during freeze-thaw cycles were...

Platt’s research strategy called ‘strong inference’ is often studied, but is difficult to apply. Here strong inference is applied in selecting differential equation models of sugar maple, Acer saccharum M., height growth. Two model groups proposed by Zeide (1993; Zeide, B. 1993. Analysis of growth equations. For. Sci. 39(3):594-616.) are supplemented with two additional groups, 1) size decline ...