ZEMCH 2015 - International Conference Proceedings | Page 838

relieving level. The greenery presents while reflecting and deflecting the sound by sucking it as
reported by prospectors from Southbank University in London. This equation is different in frequencies of the space specifications during the production of sound (Freeman 2008). The properties of the plants affect the ability of absorption like the size, shape, volume, the holder, top
dressing, and compost. The table shown below displays the plants’ absorption frequencies (Fig.5).

Figure 5: Plants hesitation (Freeman 2008)
Some tests were performed in Texas, North America, and again in the U nited Kingdom, have proven that the existence of a little vegetation portion may minimize 5dB (Perry 2014).

5. Plants Subjective Impact
Interaction with natural substance would strongly benefit our feelings and emissions within our
oneself, yet would deeply influence on the persons performance and productivity (Han 2009).
5.1. Theories
Han (2009) stated that mainly there are two notions debated on how individuals dealing with
nature as shown below:
Kaplan Attention Restoration
In the first theory, Kaplan suggested that an active productive entity that reacts to modern life in
a daily basis loses his focus as for the concentration level in the brain is bounded. Therefore, restoration is required, which needs the atmosphere that contains greenness. Generally, distant and
enchantment environment are the perfect attributes that provide (going into) a deep focusing
level, which is so beneficial for our inner peace and help leading for a better-satisfied commune.
Ulrich’s Psychological Evolutionary
In the second theory, Ulrich took this concept from other perspective, which is decreasing the
stress as any incident may result in an unpleasant feeling that will lead to tension, and in such

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ZEMCH 2015 | International Conference | Bari - Lecce, Italy