ANALYSIS OF CHANGES IN EARLY SEASON RAINFALL PREDICTION BASED RAINFALL TO DETERMINE FUTURE PLANTING AND PRODUCTIVITY RAINFED LOWLAND RICE IN CIANJUR

• Main Author: DONNI HARYANTO (NIM : 22411314); Dosen Pembimbing I : Dr. Armi Susandi, MT; Dosen Pembimbi, YOSAFAT
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/17654
• Institution: Institut Teknologi Bandung

Variations in climate is the climate phenomenon which has become a serious concern because it has a great impact in various sectors, especially agriculture. As barns Cianjur in West Java particularly vulnerable to climate variability changes in the rainy season so the impact declining productivity and change in paddy rice planting season. In analyzing the changes in the early wet season rainfall parameters using prediction results with Fast Fourier Transform (FFT). Year forecast period 2011-2015 were compared with data from 1991 to 2010 year. Then analyzed the impact on future planting rainfed lowland rice productivity standards compliant Food and Agricultural Organization (FAO). Rainfall prediction results seen by the shift of the rainy season of 1-2 months beginning the month of September-October period compared with the last 20 years. The influence of rainfall on the productivity level of paddy rice in Cianjur correlates very well at 0.80. Results predicted productivity of rainfed lowland rice for the next 5 years (2011-2015) average of 6,5 tons / ha. A shift in the start of the rainy season paddy rice planting season moved forward one month. Beginning of the first growing season in October-November, while the second growing season sometime in March-April