A new approach of soil degradation assessment for biomass production in Subang District West Java Province

Abstract

Land resource potential is possessed by Subang regency as valuable capital for regional development. According to the Ministry of Environment, land management and land use overrated for agricultural production and forest production can be caused land degradation that can be lowered soil quality and soil functionality. Soil degradation parameters from Ministerial Regulation Number 07 the year 2006, were minimum standard criteria. Determination of soil degradation by using a score will generate errors was quite large, so it was necessary modified the methods and parameters of the land degradation assessment. The method used was descriptive survey method, sample location was determined by purposive sample using based work map. The observed data and laboratory test results are then analysed using a step-wise discriminant analysis method. The results of discriminant analysis obtained eight parameter of 16 parameters tested, respectively: soil depth (X1), soil permeability (X2), soil acidity or pH (X3), soil potential redox (X4), soil conservation method (X5), rainfall (X6), slope (X7) and C-organic (X8). The resulting discriminant equation D1 = -23.987 + 0.028 X1 + 0.049 X2 - 0.847 X3+ 0.038 X4 - 6,354X5 + 0,007 X6+ 0,033 X7 - 0,206 X8 (r = 0.99; R = 0.98).

Effect of Soil Damage on Carrying Capacity of Biomass Production: A Lesson from Tanjung Selor District – Tanjung Redeb, Indonesia

“…Uncontrolled biomass production practices in the eastern part of Natuna Regency, for example, degraded soil quality and function are triggered by development routines [57]. There is similar literature, but different research outputs are also shown by Frasetya et al [58]. The use of land for production forests and explorative agriculture has an impact on land degradation in Subang in West Java (Indonesia).…”