Analisis Neraca Energi Wilayah Pertanian Situ Gede, Bogor

Abstract

The purposes of this research are studying the dynamics of atmospheric stability, determining the heat flux (Qh) and latent heat (Qe), determining and analyzing the energy balance on agricultural areas in Situ Gede, Bogor. This research uses the data of temperature, humidity, wind speed, radiation, and rainfall in 2011. Atmospheric stability that is analyzed consists of neutral, stable and unstable conditions. For the year, the stable condition occurred only at 19.9% of the total of the data of the atmospheric stability. The atmospheric conditions that are dominated by neutral conditions reached 48.5%. Unstable conditions reached 31.5%. On the agricultural areas in Situ Gede Qe = 4.92 MJ m-2 day-1, Qh = 3.35 MJ m-2 day-1, and Qg = 2.40 MJ m-2 day-1. It indicates that the energy needed to heat the atmosphere, evaporate water, and heat the soil surface is relatively small while the average net radiation is 12.78 MJ m-2 day-1 and the storage is 2.10 MJ m- 2 day-1. It shows the potential of energy utilization by plants.