Analisa Perhitungan Muka Air Rata-Rata Di Lahan Gambut Dengan Tanggul Keliling Dalam Rangka Mengurangi Kebakaran

Indra Setya Putra; Yudi Lasmana

doi:10.32679/jth.v10i1.601

Analisa Perhitungan Muka Air Rata-Rata Di Lahan Gambut Dengan Tanggul Keliling Dalam Rangka Mengurangi Kebakaran

Indra Setya Putra, Yudi Lasmana

Abstract

Peatland fires encourage the government to restore peat function as natural water storage. One of the measures taken is to build a circumference dike to hold water to reduce excessive drainage. However, there is no study yet of the planned average water level that has to be maintained from the construction of circumference dike. Therefore, the aim of this study is to calculate the average water level on peatlands inside the circumference dike. The methods used consist of hydrological analysis, spatial analysis, and water level analysis. The results of the analysis shows that the average water level in normal years tends to be above the surface, except in the second half of August to the first half of November. In the second half of September to the second half of October, the peat has the potential to be burned. In a dry season the water tends to fall decline to the drainage boundary of peatland which is at -1.5 m which occurs in the second half of March to December. In the second half of February until December peatland has potential to be burned. From this research, it can be concluded that the calculations using this method is similar with in-situ observation data and can be used to calculate the average water level of peat with the same conditions in other locations.

Keywords

Peat; fire; circumference dike; average water level

Full Text:

PDF

References

Allen, R.G., Pereira, L.S., Raes, D. & Simth, M. (1998). Crop Evaporation – Guidelines for Computing Crop Water Requirements. Rome: Food and Agriculture Organization of the United Nations.

Astiani, D., Burhanuddin, Gusmayanti, E., Widiastuti, T., Taherzadeh, M. J. (2016). Enhancing Water Level of Degraded, Bare, tropical Peatland in West Kalimantan, Indonesia: Impacts on CO2 Emission from Soil Respiration. Biodiversitas, 19(2): 522-527. DOI: 10.13057/biodiv/d190221.

Azis, Nur. (2014). Water Management for Peat Swamp Rehabilitation in Sei Ahas, Central Kalimantan, Indonesia. Master of Science Thesis. UNESCO-IHE Institute for Water Education, Delft, The Netherlands. (Tidak dipublikasi)

BBSDLP. (2006). Karakteristik dan Pengelolaan Lahan Rawa. Bogor: Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian. Departemen Pertanian.

BLLHK. (2018). Presentasi Implementasi 3 R dalam Mendukung Keberhasilan Restorasi Gambut Terintegrasi di Kalteng dan Kalsel.

Chow, V.T., Maidment, D.R. and Ways, L.W. (1988). Applied Hydrology, International Edition. New York: McGraw Hill Book Company.

Departemen Permukiman dan Prasarana. (2004). Pd.T–25-2004–A: Pedoman Konstruksi dan Bangunan: Pengoperasian Waduk Tunggal.

Dommain, R., Couwenberg, J., & Joosten, H. (2011). Development and carbon sequestration of tropical peat domes in south-east Asia: links to post-glacial sea-level changes and Holocene climate variability. Quaternary Science Reviews, 30(7) 999-1010. https://doi.org/10.1016/j.quascirev.2011.01.018.

Hooijer, A., Page, S., Canadell, J. G., Silvius, M., Kwadijk, J., Wösten, H., & Jauhiainen, J. (2010). Current and future CO2 emissions from drained peatlands in Southeast Asia. Biogeosciences, 7, 1505–1514. https://doi.org/10.5194/bg-7-1505-2010

Huijnen, V., Wooster, M.J., Kaiser, J.W., Gaveau, D.L.A., Flemming, J., Parrington, M., Inness, A., Murdiyarso, D., & van Weele, M. (2016). Fire carbon emissions over maritime southeast Asia in 2015 largest since 1997. Scientific Reports, 6,26886. https://doi.org/10.1038/srep26886.

Jaenicke, J., Wösten, H., Budiman, A., & Siegert, F. (2010). Planning hydrological restoration of peatlands in Indonesia to mitigate carbon dioxide emissions. Mitigation and Adaptation Strategies for Global Change, 15(3), 223-239. https://doi.org/10.1007/s11027-010-9214-5

Page, S. , Hosciło, A., Wösten, H., Jauhiainen, J., Silvius, M., Rieley, J., …Limin, S. (2009). Restoration Ecology of Lowland Tropical Peatlands in Southeast Asia: Current Knowledge and Future Research Directions. Ecosystems, 12(6): 888–905. https://doi.org/10.1007/s10021-008-9216-2

Page, S., & Rieley, J. (2016). Tropical Peat Swamp Forests of Southeast Asia. In C.M. Finlayson, G. R. Milton, R. C. Prentice, & N. C. Davidson . (Ed.), The Wetland Book II: Distribution, Description and Conservation (page 1-9) Dordrecht: Springer Netherlans. http://doi.org/10.1007/978-94-007-6173-5_5-3.

Page, S.E., Rieley, J.O., & Banks, C.J. (2011). Global and regional importance of the tropical peatland carbon pool. Global Change Biology, 17(2): 798-818. https://doi.org/10.1111/j.1365-2486.2010.02279.x

Putra, E.I., Cochrane, M.A., Vetrita, Y., Graham, L., & Saharjo, B. H. (2016). Degraded Peatlands, Ground Water Level and severe Peat fire Occurences. In 15th International Peat Congress. Kuching, Malaysia. Retrieved from https://www.researchgate.net/publication/311824608_Degraded_peatlands_Ground_Water_Level_and_severe_peat_fire_occurrences

Putra E.I., H. Hayasaka. (2011). The effect of the precipitation pattern of the dry season on peat fire occurrence in the Mega Rice Project area, Central Kalimantan, Indonesia. Tropics, 19(4): 145 – 156. https://doi.org/10.3759/tropics.19.145

Putra, E.I., Hayasaka, H., Takahashi, H., & Usup, A. (2008). Recent peat fire activity in the Mega Rice Project Area, Central Kalimantan, Indonesia. Journal of Disaster Research, 3(5): 1-8.

Putra, I.S. (2017). Optimasi Pola Operasi Waduk wonogiri Pasca Pembangunan Closure Dike untuk Memenuhi Kebutuhan Air Baku dan Listrik (Tesis Tidak Dipublikasikan). Fakultas Teknik Sipil dan Lingkungan, Institut Teknologi Bandung. Bandung..

Triadi, L. B., Adji, H. F., Dhiaksa, A. (2016). Dampak dinamika muka air tanah pada laju dan waktu subsiden lahan rawa gambut tropika. Jurnal Teknik Hidraulik, 7(2): 163-178. https://doi.org/10.32679/jth.v7i2.566

World Bank. (2016). The Cost of Fire. An Economic Analysis of Indonesia’s 2015 Fire Crisis (Indonesia Sustainable Landscapes Knowledge Note: 1). Washington: World Bank Group. Retrieved from http://documents.worldbank.org/curated/en/776101467990969768/The-cost-of-fire-an-economic-analysis-of-Indonesia-s-2015-fire-crisis.

Wosten, J.H.M., Page, S.E., Limin, S.H. (2007). Implications of Groundwater level Fluctuations for a Tropical Peatland Ecosystem in Southeast Asia. In J. O. Rieley, C.J. Banks, & B. Rajagukguk (Ed.), Proceedings of International Symposium and Workshop on Tropical Peatland (pp: 111-115). Leichester: CARBOPEAT, University of Leicester.

DOI: https://doi.org/10.32679/jth.v10i1.601