Calculation of Land Water Balance and Its Utilization for Determining the Growing Season in the Pulau-Pulau Aru District, Aru Islands Regency, Maluku Province

Elia L Madubun; Semuel Laimeheriwa; Merson Panggua

doi:10.30598/jbdp.2022.18.2.107

Elia L Madubun Program Studi Agroteknologi, Jurusan Budidaya Pertanian, Fakultas Pertanian, Universitas Pattimura Jl. Ir. M. Putuhena, Kampus Poka, Ambon 97233
Semuel Laimeheriwa Program Studi Agroteknologi, Jurusan Budidaya Pertanian, Fakultas Pertanian, Universitas Pattimura Jl. Ir. M. Putuhena, Kampus Poka, Ambon 97233
Merson Panggua Program Studi Agroteknologi, Jurusan Budidaya Pertanian, Fakultas Pertanian, Universitas Pattimura Jl. Ir. M. Putuhena, Kampus Poka, Ambon 97233

DOI: https://doi.org/10.30598/jbdp.2022.18.2.107

Keywords: Aru Islands, growing season, land water balance

Abstract

There are various methods that can be used to determine the growing season in an area; one of them is through the calculation of the land water balance. This study aimed to determine the presence of groundwater and determine the planting season in the Pulau-Pulau Aru Sub-District. In this study, the calculation of the regional average rainfall used monthly time series rainfall data for 30 years of observation (1991–2020). The calculation of land water balance used the ThornthwaiteMather method, and the determination of the growing season based on the values of soil water content at optimum conditions and the ratio between rainfalls and potential evapotranspiration. The results showed that the optimum soil water content for plants under conditions of 75% chance of rainfall lasted for 7 months (December to June), which was 2 months shorter than normal. The length of growing season with a 75% chance of rainfall lasted for 7 months (December to June), 2 months shorter than the growing season under normal rainfall conditions.

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References

Badan Pusat Statistik [BPS]. 2020. Kecamatan Pulau-Pulau Aru Dalam Angka. BPS Kabupaten Kep. Aru, Dobo. https://keparukab.bps.go.id/publication/2020/09/28/0872c4834b3ca25be6f3d807/kecamatan-pulau-pulau-aru-dalam-angka-2020.html

Bey, A dan I. Las. 1991. Strategi pendekatan iklim dalam usaha tani. Dalam Kapita selekta dalam agrometeorologi, hal.18-47. Dirjen Dikti, Depdikbud. Jakarta.

Biloro, J., S. Laimeheriwa, dan J.R. Patty. Analisis kondisi iklim dan pemanfaatannya untuk penetapan musim tanam di Daerah Batabual Kabupaten Buru. Jurnal Pertanian Kepulauan 5(2):62-77. https://doi.org/10.30598/10.30598/jpk.2021.5.2.111

Hidayat, T. 2011. Analisis perubahan musim dan penyusunan pola tanam tanaman padi berdasarkan data curah hujan di Kabupaten Aceh Besar. Jurnal Agrista 15(3):87-93. https://jurnal.usk.ac.id/agrista/article/view/181

Kelbulan, E., S. Laimeheriwa, dan J.R. Patty. 2021. Analisis kejadian El Nino dan dampaknya terhadap musim tanam dan produktivitas kacang tanah (Arachis hypogaea L.) di Pulau Kei Kecil Kabupaten Maluku Tenggara. Jurnal Budidaya Pertanian 17(1):52-58. https://doi.org/10.30598/jbdp.2021.17.1.52.

Laimeheriwa, S. 1988. Beberapa aspek agroklimat daerah Kei Kecil. Skripsi Fakultas Pertanian Unpatti, Ambon.

Laimeheriwa, 2012. Perubahan iklim dan dampaknya terhadap perubahan musim tanam di wilayah Maluku dengan pola hujan bimodal. Jurnal Agrilan 1(1):75-84. https://ejournal.unpatti.ac.id/ppr_paperinfo_lnk.php?id=376

Laimeheriwa, S. 2015. Analisis data iklim dalam bidang pertanian: peluang curah hujan, masa tanam, neraca air lahan dan klasifikasi iklim wilayah. Bahan Ajar Agroklimatologi, Fakultas Pertanian Unpatti, Ambon.

Laimeheriwa, S., M. Pangaribuan dan M. Amba. 2019. Analisis fenomena El Nino dan dampaknya terhadap neraca air lahan di Pulau Ambon. Jurnal Budidaya Pertanian 15(2):111-118.

https://doi.org/10.30598/jbdp.2019.15.2.111.

Las, I. 1992. Pewilayahan komoditi pertanian berdasarkan model iklim di Kabupaten Sikka dan Ende NTT. Disertasi SPS-IPB, Bogor.

Manik, T.K. 2014. Klimatologi Dasar; Unsur Iklim Dan Proses Pembentukan Iklim. Graha Ilmu, Yogyakarta. ISBN: 978-602-262-227-7

Nangimah, S.L., S. Laimeheriwa, dan R. Tomasoa. 2018. Dampak fenomena El Nino dan La Nina terhadap keseimbangan air lahan pertanian dan periode tumbuh tersedia di Daerah Waeapo Pulau Buru. Jurnal Budidaya Pertanian 14(2):66-74. https://doi.org/10.30598/ jbdp.2018.14.2.66

Schulz, E.F. 1980. Problem And Applied Hydrology. Water Res. Publ., Fort Collins, Colorado. ISBN: 1887201653, 9781887201650

Thornthwaite, C.W and J.P. Mather. 1957. Instruction And Tables For Computing Potensial Evapotranspiration And Water Balance. Drexel Institute of Climatology. New Jersey. 401p.

Uspessy J.F, S. Laimeheriwa, dan J.R. Patty. 2020. Penentuan Musim Tanam Berdasarkan Perhitungan Neraca Air Lahan Di Daerah Saumlaki, Pulau Yamdena. Jurnal Budidaya Pertanian 16(2) 173-179. https://doi.org/10.30598/jbdp.2020.16.2.173