Spatial model of control of fire prone peatlands based on rainfall data (case study: Kepulauaan Meranti Regency, Riau Province)

Abstract

Peatland fires in Indonesia occur every year, and the impacts are also known to cause many costs. Fires in Indonesia are 99% caused by humans. Fires can occur when the components of the fire are available, namely fuel, oxygen and heat sources. Triangel fire components are in optimal conditions when the land is dry. Dry conditions are mainly caused by weather, and are reinforced by human activities. The main influence of weather is in the form of rainfall, while the human influence is in the form of canalization. Low rainfall causes dry land and plants. Canalization has the potential to cause the surrounding land to become dry. The canalization is made so that the plant roots are in the aerobic zone, so that the plants can grow well. The purpose of this study is to find out how much rainfall there are still fires and their distribution. By knowing this information, it is hoped that efforts to control forest and land fires can be carried out more effectively. The method used is spatial analysis. Materials used: 2005-2016 rainfall data, 2005-2016 hotspots data, 1: 50,000 scale RBI map. The results of this study indicate that thde chance of occurrence of fires on the low rainfall class (0 - 100 mm) has 70,5 % higher than chance of occurrence of fires than medium raifall class (100 - 300 mm) of 24,5 %.