Surface runoff under pine stands on slopes below and above 40%

D Malamassam, H Zubair, U Arsyad - IOP Conference Series …, 2019 - iopscience.iop.org
IOP Conference Series: Earth and Environmental Science, 2019iopscience.iop.org
The study aimed to analyze the effectiveness of pine stands in controlling surface runoff on
land with a slope> 40%, comparing surface runoff on slope> 40% by slopes< 40%. This
research was conducted from November 2016-March 2017. It was carried out under the
Pine stands on UNHAS Education Forest in Maros Regency. Surface runoff measurements
were carried out by installing plots measuring 22 x 4 m on slopes< 40% and> 40%
respectively for 3 replications. The bottom of the plot is installed with 3 pieces of 50 liter …
Abstract
The study aimed to analyze the effectiveness of pine stands in controlling surface runoff on land with a slope> 40%, comparing surface runoff on slope> 40% by slopes< 40%. This research was conducted from November 2016-March 2017. It was carried out under the Pine stands on UNHAS Education Forest in Maros Regency. Surface runoff measurements were carried out by installing plots measuring 22 x 4 m on slopes< 40% and> 40% respectively for 3 replications. The bottom of the plot is installed with 3 pieces of 50 liter capacity storage. Observation of surface runoff is taken every time of rain, as many as 39 times rain. The average surface runoff volume (m3/plot) is obtained by summing the volume collected in 3 reservoirs. The results showed that the average surface runoff on slopes< 40%, ie, 0.012 m3/plot and 0.014 m3/plot on slope> 40%. The results of the difference test were 2 on average with a 95% confidence interval; there was no difference in the average runoff on slopes< 40% and> 40%. Regression analysis results show that canopy cover can control surface runoff.
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