Pengaruh Penebangan Hutah Tanaman Eucalyptus Pellita F.Muell Dalam Peningkatan Aliran Sungai dan Sedimen
DOI:
https://doi.org/10.59465/jpht.v13i2.857Kata Kunci:
E. pellita, debit, hutan tanaman, sedimen dan tebang habisAbstrak
Tujuan penelitian ini adalah untuk mengetahui pengaruh penebangan hutan tanaman terhadap aliran sungai dan sedimentasi. Penelitian dilaksanakan di kawasan hutan tanaman E. pellita di Perawang, Propinsi Riau.Teknik yang digunakan adalah metode pengukuran neraca air dengan menggunakan satuan pengamatan berupa mikro DAS. Hasil penelitian menunjukkan bahwa akibat penebangan dengan sistem tebang habis telah menyebabkan peningkatan aliran sungai sebesar 142,6% pada periode 0 sampai 8 bulan setelah penebangan dari rata-rata 45,5 mm per bulan (sebelum penebangan) menjadi 110,5 mm per bulan (setelah penebangan) serta meningkatkan koefisien limpasan permukaan bulanan sebesar 95,3%, yakni dari 34,0% menjadi 66,0%. Kegiatan penebangan menyebabkan peningkatan sedimen bulanan sebesar 788,7% dari 0,18 ton per ha per bulan sebelum penebangan menjadi 1,57 ton per ha per bulan setelah penebangan.
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