Transformasi fosfat dalam hubungannya dengan karbon organik dan faktor lainnya di bawah pengaruh air pasang surut

Abstract

Tidal fluctuation creates different soil chemical properties which is totally deviate from normal circumstances.  Organic matter decomposition occurs with limited O₂ supply, hence disturbing C cycle which has a center role in the process and mineralization.  Undisturbed composite samples were collected in top-soil and sub-soil, 10 each, in order to describe the relationship between organic-C, total-P, and Bray-P.  Results show that there was no direct effect from organic-C in P availability as in other mineral soils.  However, there was an indication that the relationship was influenced by ripening process of the soil.  In other words, the relationship between organic-C and Bray-P was typical for every type of swampland.  Meanwhile, organic-C was closely related to the amount of free-Fe in the soil, but free-Fe was not associated with Bray-P either.  Soil pH which always strongly affected the solubility of Fe and Bray-P on dry land soils did not show a direct effect on tidal Bray-P.