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The Effectiveness of Canopi to Reduce Rainfall Acidity in the Industrial Area at Medan

Forum Geografi · Vol. 15 No. 2 (2016) · hlm. 107–112

DOI
10.23917/forgeo.v15i2.4575
ISSN
2460-3945, 0852-0682
Terbit
2016-12-20
Penerbit
Universitas Muhammadiyah Surakarta
Bahasa
eng
Lisensi
creativecommons.org/licenses/by-nc-nd/4.0

Abstrak

The term of acid rain is referred to the mean rainfall with a pH less than 5.65. The element of SOx and NOx are the major sources of acid rain. These two elements are oxidized into S04 and N03 respectively in the air. Sulfate and nitrate are water soluble and the primary sources of hydrogen ions in acid precipitation. Rain passing through a tree canopy may lose or gain mineral elements through some combination of natural process of absorption and leaching. By this process, the canopy may reduce rainfall acidity and negative effects of the acid rain which will enter into the soil. Due to characteristic differences among tree canopies, a study to evaluate effectiveness of the trees in reducing rainfall acidity was done. In this study, rainfall and through fall were collected every single rain and the pH measured by portable pH-meter. Based on data collection during 3 months in Medan Industrial Estate, it found that the mean pH of rainfall was 5, 15. The highest pH of through fall was found from Gnetum gnemon, that was 5.70, following by Mimusops elengi, Filicium decipiens, Adacia mangium and the lowest was Nephelium lappacum. G. gnemon was able to reduce 11% of rainfall acidity, but N. lappacum caused 13 %increasing rainfall acidity. In this study, the main source of rainfall acidity was hydrogen from sulfate acid (54%), following by chloride acid (30%) and nitrate acid (16%).

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  • Indonesian National Institute of Aeronautics and Space
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Rekan penulisOrganisasiArtikel bersama
Wahyu Wisnu WijayaWatershed5
Irfan Budi PramonoWatershed5
Diah AuliyaniWatershed3
Rahardyan Nugroho AdiWatershed2
Esa Bagus NugrahantoWatershed2
Nining WahyuningrumWatershed1
Galdita Aruba ChulafakIndonesian National Institute of Aeronautics and Space1
Fajar SetiawanNational Research and Innovation Agency1
Budi Heru SantosaNational Research and Innovation Agency1
Aldiano RahmadyaNational Research and Innovation Agency1
Firda Maftukhakh Hilmya NadaNational Research and Innovation Agency1

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Metadata asli (oai_dc) 
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	<dc:title xml:lang="en-US">The Effectiveness of Canopi to Reduce Rainfall Acidity in the Industrial Area at Medan</dc:title>
	<dc:creator>Basuki, Tyas Mutiara</dc:creator>
	<dc:subject xml:lang="en-US"></dc:subject>
	<dc:subject xml:lang="en-US">acid rain; rainfall; throughfall</dc:subject>
	<dc:subject xml:lang="en-US"></dc:subject>
	<dc:description xml:lang="en-US">The term of acid rain is referred to the mean rainfall with a pH less than 5.65. The element of SOx and NOx are the major sources of acid rain. These two elements are oxidized into S04 and N03 respectively in the air. Sulfate and nitrate are water soluble and the primary sources of hydrogen ions in acid precipitation. Rain passing through a tree canopy may lose or gain mineral elements through some combination of natural process of absorption and leaching. By this process, the canopy may reduce rainfall acidity and negative effects of the acid rain which will enter into the soil. Due to characteristic differences among tree canopies, a study to evaluate effectiveness of the trees in reducing rainfall acidity was done. In this study, rainfall and through fall were collected every single rain and the pH measured by portable pH-meter. Based on data collection during 3 months in Medan Industrial Estate, it found that the mean pH of rainfall was 5, 15. The highest pH of through fall was found from Gnetum gnemon, that was 5.70, following by Mimusops elengi, Filicium decipiens, Adacia mangium and the lowest was Nephelium lappacum. G. gnemon was able to reduce 11% of rainfall acidity, but N. lappacum caused 13 %increasing rainfall acidity. In this study, the main source of rainfall acidity was hydrogen from sulfate acid (54%), following by chloride acid (30%) and nitrate acid (16%).</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Muhammadiyah Surakarta</dc:publisher>
	<dc:contributor xml:lang="en-US"></dc:contributor>
	<dc:date>2016-12-20</dc:date>
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	<dc:identifier>https://journals.ums.ac.id/index.php/fg/article/view/4575</dc:identifier>
	<dc:identifier>10.23917/forgeo.v15i2.4575</dc:identifier>
	<dc:source xml:lang="en-US">Forum Geografi; Vol 15, No 2 (2001): December 2001; 107-112</dc:source>
	<dc:source>2460-3945</dc:source>
	<dc:source>0852-0682</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://journals.ums.ac.id/index.php/fg/article/view/4575/2964</dc:relation>
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	<dc:coverage xml:lang="en-US"></dc:coverage>
	<dc:coverage xml:lang="en-US"></dc:coverage>
	<dc:rights xml:lang="en-US">Copyright (c) 2017 Tyas Mutiara Basuki</dc:rights>
	<dc:rights xml:lang="en-US">https://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
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