Wind Velocity ​​Reduction by Stands of Casuarina Equisetifolia For Area Protection In South Coast Petanahan Kebumen Central Java

Eka Rahmawati, Nyoto Santoso, Rachmad Hermawan


South Coast Petanahan is one of the beaches in Kebumen district directly adjacent to the Indian Ocean. The condition affects the hardness of wind to land around the coast which is able to inhibit the production of agricultural communities in the back of the beach. The purpose of this study was to determine the average reduction of wind velocity by Australian pine tree stands and determine the relationship between characteristics of the greenbelt to decrease the velocity of sea breeze. The study was conducted in the coastal forest of Australian pine tree Petanahan with a thickness of forest of 200 m, 60 m, and 0 m (without vegetation). Collected data include height of the tree (m), diameter of the stem (cm), crown width (m), thick of the canopy (m), the position of the tree in the plot (m), and the wind velocity before and after going through the stand of Australian pine tree. The results showed a reduction in average velocity of sea breeze passed stands of Australian pine tree on the thickness of the stand of 200 m is 90.674%, and the thickness of the stand of 60 m is 80.016%, while the condition without vegetation decreases the average velocity wind about 27.979%. The influence of the independent variables indicated by the value of r = 0.889 and R2 = 0.791. ANOVA results showed that the thickness of the most significant stands of reducing the average wind velocity was 200 m with a mean of 2.248 m/s.

Aus. & NewZe J. Soci Busi. Env. Sus. Vol 5(1), April 2019, P 20-31


Wind Velocity; Australian Pine Tree; Greenbelt; Reduction; Fores

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