A study of Noordwijk van Mein et al. (1997) in the forest area of Indonesia said that the quantity of soil organic carbon in forest areas is related to the pH of the soil and soil organic carbon is the smallest quantity, pH 5.0-6.0.
The study of Mein van Noordwijk et al. (1997) in the forests of Indonesia. Said the volume of soil organic carbon in forest areas related to soil pH and soil organic carbon is the lowest pH 5.0-6.0.
A study of the Mein van Noordwijk et al. (1997) in the forest area of Indonesia. Said that the amount of soil organic carbon in forest area are related to pH of soil and soil, the amount of organic carbon, pH 5.0-6.0 minimum