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      Optimalisasi Tanaman Akar Wangi sebagai Pencegahan Erosi Berdasarkan Nilai Erodibilitas Tanah dan Dampak Penyerapan CO2

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      Date
      2025
      Author
      RESQIYANTO, MUHAMMAD ADITIYA
      Chadirin, Yudi
      Putra, Heriansyah
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      Abstract
      Tanah longsor merupakan ancaman serius di wilayah perbukitan seperti Desa Petir, Kabupaten Bogor. Berbagai metode pengendalian erosi telah digunakan. Penggunaan beton berisiko tinggi terhadap lingkungan karena emisi karbon yang dihasilkan. Metode seperti hydroseeding memang ramah lingkungan dan mampu menyerap CO2, namun belum optimal dalam memperkuat lereng. Penggunaan tanaman akar wangi (Vetiveria zizanioides) mampu meningkatkan perkuatan lereng sekaligus menyerap CO2 dari atmosfer. Penelitian ini mengevaluasi efektivitas akar wangi sebagai alternatif ramah lingkungan dalam pengendalian erosi berdasarkan nilai erodibilitas tanah dan kemampuan penyerapan CO2. Hasil menunjukkan tanah di lokasi penelitian memiliki tingkat erodibilitas tinggi (K = 0,50–0,51). Hasil pengujian menunjukkan laju pertumbuhan akar meningkat sebesar 30-40 cm pada 60 HST dan 90 HST yang berfungsi mengikat tanah. Akar wangi terbukti mampu menyerap CO2 hingga 1,53 g/tanaman/hari dalam intensitas cahaya tinggi dan menyimpan karbon dalam biomassa. Akar wangi berpotensi menyerap hingga 2,844 ton CO2/ha/hari. Akar wangi dapat digunakan dalam pengendalian erosi sekaligus berkontribusi terhadap mitigasi perubahan iklim.
       
      Landslides pose a serious threat in hilly regions such as Petir Village, Bogor Regency. Various erosion control methods have been applied, yet many remain suboptimal. Concrete-based structures, while effective, pose significant environmental risks due to high carbon emissions. Environmentally friendly alternatives such as hydroseeding can absorb CO2 but have limited effectiveness in slope stabilization. This study evaluates the use of Vetiveria zizanioides (vetiver grass) as an eco-friendly alternative for erosion control, based on soil erodibility and carbon sequestration capacity. The results show that the study site has high soil erodibility levels (K = 0,50–0,51). Root growth increased significantly, reaching 30–40 cm between 60 and 90 days after planting (DAP), contributing to soil reinforcement. Vetiver was found to absorb up to 1,53 g CO2/plant/day under high light intensity and store carbon within its biomass. Vetiver can potentially sequester up to 2,844 tons CO2/ha/day. Vetiver grass not only serves as an effective erosion control measure but also contributes to climate change mitigation through carbon capture.
       
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      http://repository.ipb.ac.id/handle/123456789/164086
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      • UT - Civil and Environmental Engineering [1042]

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      Copyright © 2020 Library of IPB University
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      Indonesia DSpace Group 
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