PERUBAHAN KONSENTRASI UNSUR HARA SERASAH HUTAN RAKYAT SELAMA PROSES DEKOMPOSISI

Andi Gustiani Salim, Pratiwi Pratiwi

Sari


Pencampuran berbagai jenis tanaman pada hutan rakyat sangat mempengaruhi tingkat kesuburan tanah karena adanya input unsur hara dari serasah yang dihasilkan melalui proses dekomposisi. Penelitian ini bertujuan untuk mengetahui perubahan konsentrasi unsur hara selama proses dekomposisi pada beberapa pola hutan rakyat. Penelitian dilakukan di Desa Nglanggeran, Gunung Kidul, Provinsi D.I. Yogyakarta, pada hutan/alas (HR1), pekarangan (HR2) dan tegalan (HR3) dengan menggunakan Litter bag. Hasil penelitian menunjukkan bahwa selama proses dekomposisi, terjadi imobilisasi dan pencucian unsur-unsur N, P dan K. Konsentrasi unsur hara yang dilepaskan selama 24 minggu dari yang paling tinggi berturut-turut: a) Nitrogen: HR2 (78,62%), HR3 (62,37%) dan HR1 (35,81%), b) Fosfor: HR2 (80,03%), HR3 (76,97%) dan HR1 (30,77%), c) Kalium: HR3 (93,88%), HR2 (89,11%) dan HR1 (81,03%). Serasah pekarangan (HR2) mengandung unsur hara yang cukup tinggi dan cepat terdekomposisi, sehingga mudah tersedia bagi tanaman, hal ini menyebabkan serasah cukup baik jika digunakan untuk mulsa/pupuk hijau bagi tanaman semusim. Serasah hutan (HR1) dan tegalan (HR3) dapat digunakan pada tanaman tahunan karena pelepasan haranya secara perlahan-lahan,sehingga dapat pula digunakan sebagai pelindung tanah


Kata Kunci


Unsur hara, dekomposisi, hutan rakyat

Teks Lengkap:

pdf Bahasa Indonesia

Referensi


Aponte, C., Garcia, L.V., & Maranon, T. (2012). Tree species effect on litter decomposition and nutrient release in Mediterranean oak forest changes over time. Ecosystems, 15,1204-1218.

Balai Penyuluhan Pertanian Patuk. (2011). Program penyuluhan pertanian Balai Penyuluhan Pertanian Patuk. Badan Pelaksana Penyuluhan dan Ketahanan Pangan Kabupaten Gunung Kidul.

Budelman, A. (1988). The decomposition of the leaf mulches of Leucaena leucocephala, Gliricidia sepium, and Flemingia macrophylla under humid tropical condition. Agroforestry System, 7, 33-45.

Byuju, G. (1989). Impact of Eucalyptus and Acacia plantation on soil properties in different pedogenic environments in Kerala, m.Sc. (Ag) Disertation, Kerala Agricultral University, Vellyani, Kerala.

Das, T., & Das, A.K. (2010). Litter production and decomposition in the forested area of tradisional homegardens: a case study from Barak Valley Assam, Northeast India. Agroforestry System, 79, 157-170.

Fiqa, A.P., Agus, S.D., & Solikin. (2010). Seleksi serasah tanaman koleksi kebun raya Purwodadi dalam upaya menghasilkan kompos berkualitas tinggi. Laporan akhir Program Insentif Peneliti dan Perekayasa LIPI. Balai Konservasi Tumbuhan Kebun raya Purwodadi LIPI.

Fisher, R.F., & Binkley, D. (2000). Ecology and management of forest soil (Third Edition), Canada: John Wiley & Sons Inc.

Ganesh, P.S., Gajalaksmi, S., & Abbasi, S.A. (2009). Vermicomposting of the leaf litter of Acacia (Acacia auriculiformis): Possible roles of reactor geometry, polyphenols, and lignin. Bioresource Technology, 100, 1819-1827.

Gnankkambary Z., Bayala, J., Malmer, A., Nyberg, G., & Hien, V. (2008). Decomposition and nutrisi release from mixed plant litters of contrasting quality in an agroforestryparkland in the South Sudanese Zone of West Africa. Nutrient Cycle Agroecosystem Journal, 82, 1-13.

Hagen-Thorne, A., Varnagiryte, I., Nihlgard, B., & Armolaitis, K. (2006). Autumn nutrient resorption and losses in four deciduous forest tree species. For. Ecol. Manage., 228, 33-39.

Heals, O.W., Anderson, J.M., & Swift, R.S. (1997). Plant litter quality and decomposition: an historical overview. Dalam: Cadisch, G. and Giller, K.E (eds) Driven by nature: plant litter quality and decomposition. CAB International, Wallingford, UK, pp. 3-30.

Isaac, S.R., & Nair, M.A. (2004). Decomposition of wild jack (Artocarpus hirsutus. Lamk) Leaf litter under subcanopy and open condition (Short Communication). Journal of Tropical Agriculture, 42 (1-2) : 29-32.

Jordan. C.F. (ed) (1985). Nutrientcycling in tropical forest ecosystem. John Willey, New York. USA.

Moore, T.R., Trofymow, J.A., Prescott, C.E., Titus, B.D., & CIDET Working Group. (2011). Nature and nurture in the dynamics of C, N and P during decomposition in Canadian forests. Plant Soil, 339, 163-175.

Myers, R.J.K., Palm, C.A., Cuevas, E., Gunatilleke, I.U.N., & Brossard, M. (1994).The synchronization of nutrient mineralization and pant nutrient demand. Dalam: Woomer, P.L. and Swift, M.J. (eds) The bilogical management of tropical soil fertility. John Wiley & Sons, Chichester, UK, pp. 81-116.

Rahman, M.M., Tsukamoto, T. J., Rahman, M.M., Yoneyama, A., & Mostafa, K.M. (2013). Lignin and its effect on litter decomposition in forest ecosystem. Chemistry and Ecology, 29, 540-553.

Rindyastuti, R., & Darmayanti, A.S. (2010). Komposisi kimia dan estimasi proses dekomposisi serasah 3 species familia Fabaceae di Kebun Raya Purwodadi. Makalah seminar nasional biologi tanggal 24-25 September 2010. Fakultas Biologi Universitas Gadjah Mada, Yogyakarta.

Palm, C.A. (1995). Contribution of agroforestry trees to nutrient requirement of intercropped plants. Dalam : Sinclair, F.L. (ed) Agroforestry: science, policy and practice. Kluwer Academic Publisher, Dorrecht,pp.105-124.

Salazar, S., Sanchez, L.E., Galindo, P., & Santa-Regina, L. (2011). N and P resorption efficiency and proficiency from leaves under different forest management system of deciduous woody species. J. Eng. Technol. Res., 3, 389-397.

Schmidt, F.H., & Ferguson, J.H.A. (1951). Rainfall based on wet and dry period ratios for Indonesia with Western

New Guinea.Verhand. 42. Kementerian Perhubungan. Djawatan Meteorologi dan Geofisika, Jakarta.

Swift, M.J., Heal, O.W., & Anderson, J.M. (1979).

Decomposition in terrestrial ecosystems. University of

California Press. Blackwell Scientific, Oxford, UK.

Van Vuuren, M.M.I., & Van Der Erden, L.J. (1992). Effect of three rates of atmospheric nitrogen deposition enriched with 15N on litter decomposition in a healtland. Soil Biology and Biochemistry, 24, 527-532.

Widyastuti, S.M., Sumardi, & Nurjanto, H.H. (1998). Pelepasan unsur hara dalam proses dekomposisi serasah sebagai petunjuk aktivitas mikroorganisme di bawah tegakan Acacia mangium. Buletin Kehutanan, 35, 11-19.

Widjaja, M.C. (1980). Result of decomposition research at Ubrug Forest, Jatiluhur, Indonesia. Thesis Biology Dept. Padjajaran, University, Bandung.




DOI: https://doi.org/10.9868/ifrj.3.1.23-33

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