In this study, we measure climate factors and anions in trees in summer by sun track, point of the compass and horizontal·vertical structures. Measuring points by solar altitudes are Ta point, Tb point, Tc point and Td point. Measuring points by orie...
In this study, we measure climate factors and anions in trees in summer by sun track, point of the compass and horizontal·vertical structures. Measuring points by solar altitudes are Ta point, Tb point, Tc point and Td point. Measuring points by orientation are E point, W point, S point and N point. Measuring points by vertical·horizontal structures are U1 point, U2 point, U3 point, M1 point, M2 point, M3 point, L1 point, L2 point and L3 point. Thus, measurements are made in a total of 17 points in summer in 2013∼2014.
As the results of comparing and analyzing amount of anions by the measuring points, the average amount of anions by solar altitude is 630.3ea/㎤. Ta point is located on the sunny spot and it shows the highest amount of anions(654.0ea/㎤). Td point(639.4ea/㎤), Tc point(615.3ea/㎤) and Tb point(612.3ea/㎤) are followed. Taken climate factors and amount of anions in each measuring point together, we find a positive correlation between amount of solar radiation and temperature.
The average amount of anions by orientation is 864.2 ea/㎤. W point shows the highest amount of anions(937.2ea/㎤). S point(892.7ea/㎤), E point(852.0ea/㎤) and N point(774.7ea/㎤) are followed. As the result s of analyzing the correlation between climate factors in measuring points and amount of anions, we find a positive correlation with solar radiation and a negative correlation with wind speed.
As the results of comparing and analyzing amount of anions by horizontal·vertical structures, the average amount of anions by vertical structure in Middle point (M) is the highest. Lower point (L) and Upper point (U) are followed. The average amount of anions by horizontal structures in leeward point (3) is the highest. Windward point (1) and center point (2) are followed. L2 point(876.5ea/㎤) shows the highest average amount of anions in 9points. M1 points(834.3ea/㎤), M3 points(822.0ea/㎤), M2 point(775.2ea/㎤), U3 point(751.2ea/㎤), L1 point(747.2ea/㎤), L3 point(718.7ea/㎤), U1 point(636.2ea/㎤), and U2 point(533.2ea/㎤) are followed. The overall average amount of anions is 743.8ea/㎤. As the result of comprehensive correlation analysis, we find a positive correlation between amount of solar radiation and temperature.
As the result of comprehensive correlation analysis between climate factors and amount of anions in all measuring points, we find a positive correlation between amount of solar radiation and temperature. In addition, as the results of comparing and analyzing amount of anions with the interval of the amount of solar radiation in 100W/㎡, the amount of anions tends to increase with the increase in the amount of solar radiation within 0∼800W/㎡, but it tends to decrease with the amount of solar radiation in 800W/㎡ or higher. As the results of analyzing the amount of anions with interval of temperature in 5℃, the highest amount of anions(878.3ea/㎤) is measured when the temperature is 25∼30℃ and the amount of solar radiation is 400W/㎡or higher. It is thought that the increase in amount of anions is affected by interaction of factors rather than independent factors.