نتایج جستجو برای: permanent plot
تعداد نتایج: 92633 فیلتر نتایج به سال:
the effect of soil and phanerogam characteristics on bryophytes composition, richness, abundance and functional groups were investigated in order to understand the factors responsible for bryophytes distribution patterns. three different sand dunes were selected: untouched, artificial sod-covered and planted by ammophila. along 10 transects perpendicular to the shore, a total of 142 permanent r...
factorial and split-plot designs are two statistical procedures used to conduct agricultural field experiments. both designs are used frequently to quantify the main and interaction effects of two or more factors. however, split-plot design is recommended for specific situations depending on major and minor goals of the study, characteristics of the factors, and precision of statistical testing...
Height to crown base (HCB) of a tree is an important variable often included as a predictor in various forest models that serve as the fundamental tools for decision-making in forestry. We developed spatially explicit and spatially inexplicit mixed-effects HCB models using measurements from a total 19,404 trees of Norway spruce (Picea abies (L.) Karst.) and European beech (Fagus sylvatica L.) o...
Soil tillage and cover crops impact spontaneous vegetation in agrosystems. destroys seedlings can affect the soil seedbank. Cover compete with naturally occurring species. Our aim was to gain insight into how (here, false seedbed technique) fallows preceding banana crops. In a fallowed field Guadeloupe (French West Indies), two factors were combined split-plot design: modality before crop sowin...
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