Pengaruh Perubahan Iklim Terhadap Produksi Padi di Lahan Tadah Hujan

  • Estiningtyas W
  • Syakir M
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Abstract

ABSTRAK Ketergantungan yang sangat tinggi terhadap curah hujan menjadikan lahan sawah tadah hujan memiliki periode tanam yang terbatas. Sementara curah hujan itu sendiri sangat dipengaruhi oleh perubahan iklim. Makalah ini menyajikan hasil analisis tentang dampak perubahan iklim terhadap produksi padi di lahan sawah tadah hujan dengan model simulasi tanaman DSSAT. Lokasi penelitian yaitu Jakenan dan Ngale. Skenario perubahan iklim yang digunakan dalam penelitian ini merupakan hasil analisis menggunakan model Coordinated Climate-Crop Modeling Program (C3MP) Sensitivity test Versi 2.0. Uji sensitivitas C3MP dilakukan dengan menyesuaikan kondisi iklim historis untuk mencerminkan perubahan o suhu, presipitasi, dan CO. Hasil penelitian menunjukkan bahwa Perubahan suhu 0,5 C dan konsentrasi CO 537 ppm 2 2 masih meningkatkan produksi 2,2 hingga 502,5 kg/ha di Jakenan dan 15,9 hingga 507,7 kg/ha di Ngale yang terjadi o hampir di setiap Bulan mulai Januari-Desember. Perubahan suhu 1 C dan konsentrasi CO 403 ppm secara umum masih 2 meningkatkan hasil tetapi hanya terjadi pada bulan-bulan tertentu yaitu sebesar 57,4 hingga 366,2 kg/ha di Jakenan dan 21,9-320,4 kg/ha di Ngale. Kata kunci : Padi, tadah hujan, DSSAT, suhu udara, curah hujan dan konsentrasi CO 2 ABSTRACT Very high dependence on rainfall makes rain-fed land has limited the planting period for rice cultivation. While the rainfall itself strongly influenced by climate change. This paper presents the results of analysis of the relationship of climate change expressed by changes in temperature, precipitation and CO concentrations on rice production in rain-2 fed land with crop simulation models DSSAT. Location of this research are Jakenan and Ngale. Parameters are indicators of climate change is the air temperature and CO concentrations with two scenarios. Climate change 2 scenarios used in this study is the result of analysis using a model-Crop Coordinated Climate Modeling Program (C3MP) Sensitivity test Version 2.0. C3MP sensitivity test is done by adjusting the historical climate conditions to reflect changes in temperature, precipitation, and CO. 2 o The results showed that the temperature change of 0.5 C and 537 ppm CO concentration still increased the production of 2.2 to 502.5 kg/ha in Jakenan and 15.9 to 507.7 kg/ha in Ngale which 2 o occurred almost every month starting January-December. Changes in temperature of 1 C and concentration of CO 403 2 ppm in general still increase yield but only occur in certain months that is equal to 57,4 to 366,2 kg/ha in Jakenan and 21,9-320,4 kg/ha in Ngale.

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Estiningtyas, W., & Syakir, M. (2018). Pengaruh Perubahan Iklim Terhadap Produksi Padi di Lahan Tadah Hujan. Jurnal Meteorologi Dan Geofisika, 18(2). https://doi.org/10.31172/jmg.v18i2.406

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