Arasy, Rana Rachim (2023) Studi Tinggi Muka Air dan Beberapa Karakteristik Gambut Pasca Terbakar di Hutan Lindung Gambut Sungai Buluh Desa Sinar Wajo. S1 thesis, Universitas Jambi.
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Abstract
Keberadaan hutan lindung gambut sangat penting perannya karena berfungsi sebagai daerah tangkapan air, habitat flora dan fauna, serta menjaga karakteristik lahan serta dapat mengurangi konsentrasi CO2 di atmosfer. Deforestasi atau alih fungsi lahan memberikan kontribusi yang signifikan terhadap terjadinya kebakaran lahan gambu karena disertai dengan tindakan drainase. Dalam kondisi alami gambut merupakan lahan yang tergenang sementara tanaman pertanian tidak tahan terhadap genangan hal ini dapat mengakibatkan kebakaran lahan gambut karena tinggi muka air tanah turun dan gambut menjadi kering. Kebakaran lahan merupakan gangguan terbesar pada ekosistem ini. Ketahanan lahan gambut sangat tergantung pada tingkat hidrofobisitas tanah gambut pasca-kebakaran. Penelitian ini bertujuan untuk mempelajari Tinggi Muka Air (TMA) dan beberapa karakteristik lahan gambut pasca terbakar di Hutan Lindung Gambut (HLG) Sungai Buluh Desa Sinar Wajo, Kecamatan Mendahara Ulu Kabupaten Tanjung Jabung Timur. Penentuan titik pengambilan sampel menggunakan metode purposive sampling (penentuan plot penelitian secara sengaja yang dianggap representative) yang diterapkan pada kawasan HLG yang terbakar ditahun 2019, hutan rawa sekunder yang masih natural serta lahan yang telah mengalami alih fungsi menjadi perkebunan kelapa sawit masyarakat. sampel tanah utuh dan terganggu di 4 kedalaman berbeda yaitu kedalaman 0-10 cm, 10-20 cm, 20-30 cm dan 30-40 cm. Dari penelitian diperoleh informasi bahwa lokasi penelitian memiliki tipe pasang surut semi diurnal. Kebakaran yang terjadi di lokasi penelitian pada tahun 2019 merupakan kebakaran dalam (peat fire) namun kerusakan gambut dominan terjadi pada lapisan tanah 0-10 cm pada tiap variabel sifat fisik dan kimia yang dianalisis. Lahan terbakar 2019 memiliki kemampuan meloloskan air yang lebih rendah/lambat dibandingkan lahan perkebunan kelapa sawit dan hutan rawa sekunder. Karakteristik tanah yang dianalisis memiliki keterkaitan satu sama lain. Semakin tinggi nilai BV maka semakin rendah kadar air dan bahan organik yang dikandungnya. Semakin tinggi nilai C/N Rasio maka semakin tinggi C-Organik, semakin tinggi bahan organik maka semakin tinggi N-total, semakin tinggi TMAT menyebabkan peningkatan kadar air, bahan organik dan C/N rasio namun nilai BV akan rendah. The existence of peat protection forest is very important because it functions as a water catchment area, habitat for flora and fauna, and maintains land characteristics and can reduce the concentration of CO2 in the atmosphere. Deforestation or land use change contributes significantly to the occurrence of peatland fires because it is accompanied by drainage measures. In its natural state, peat is flooded and agricultural crops are not resistant to inundation, which can lead to peatland fires as the water table drops and the peat dries out. Fire is the biggest disturbance to this ecosystem. Peatland resilience is highly dependent on the level of hydrophobicity of the post-fire peat soil. This research aims to study the water table and some characteristics of post-fire peatland in Sungai Buluh Peat Protection Forest, Sinar Wajo Village, Mendahara Ulu District, Tanjung Jabung Timur Regency. Determination of sampling points using purposive sampling method (deliberate determination of research plots that are considered representative) applied to areas Peat Protection Forest that burned in 2019, secondary swamp forests that are still natural and land that has been converted into community oil palm plantations. intact and disturbed soil samples at 4 different depths, namely depths of 0-10 cm, 10-20 cm, 20-30 cm and 30-40 cm. From the research, it was found that the research location has a semi-diurnal tidal type. The fires that occurred at the research site in 2019 were deep fires (peat fires) but the dominant peat damage occurred in the 0- 10 cm soil layer in each variable of physical and chemical properties analyzed. The 2019 burnt land had a lower/slower ability to pass water than the oil palm plantation and secondary swamp forest. The soil characteristics analyzed are related to each other. The higher the value, the lower the moisture content and organic matter it contains. The higher the C/N ratio the higher the C-Organic, the higher the organic matter the higher the N-total, the higher the water table causes an increase in moisture content, organic matter and C/N ratio but the Bulk Density value will be low.
| Type: | Thesis (S1) |
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| Uncontrolled Keywords: | Deforestrasi, Tinggi Muka Air (TMA), Peat fire |
| Subjects: | L Education > L Education (General) |
| Divisions: | Fakultas Pertanian > Agroekoteknologi |
| Depositing User: | Arasy |
| Date Deposited: | 10 Jan 2024 02:52 |
| Last Modified: | 18 Jul 2024 03:09 |
| URI: | https://repository.unja.ac.id/id/eprint/59677 |
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