Principle

Why are there only a few different kinds of plants in a deciduous forest? Except for having trees that are all approximately of the same height, hardly any other plants grow in a deciduous forest, except for young plants of the same type of trees. This experiment shows how the light intensity in a mixed forest of oaks and beeches changes in the spring during the foliation of the trees. It also demonstrates the effects on the vegetation.

Benefits


Experiment is part of an experiment set with numerous experiments in ecology

Universal handheld measurement device can also be used for other measurement parameters relevant in ecology, biology and chemistry

Outdoors measurement possible, for mobile use

Graphical display of measurement data

Data can be saved on SD memory card

All data can be transferred onto a computer for data analysis

Data analysis software can be freely distributed


Tasks


Measurement of light intensity in a forests week by week during bud burst

Comparison of measurement values


What you can learn about


Vegetation

Shade plant

Heliophyte

Photosynthesis factor light intensity