Accumulation of Some Nutrients in Parts of Avicennia marina (Forsk.) Vierh. at Municipal Wastewater Receptor Area in The King’s Royally Initiated Laem Phak Bia Environmental Research and Development Project, Petchaburi Province

Abstract

This research aimed to study the accumulation of some nutrients in parts of Avicenna marina at domestic wastewater receptor area in The King’s Royally Initiated Laem Phak Bia Environmental Research and Development Project (LERD) the study was divided into 2 areas include non-wastewater receptor area A and wastewater receptor area B, each area was separated into 3 zones from land to the sea. The study found that the average tree density in area A and B was 739.4 and 631.5 individuals per rai, the average diameter of trees was 5.99 and 7.15 centimeters and the average heights of trees was 5.59 and 6.33 meters. Most of nitrogen and potassium accumulated in leafs, branches, roots and stem respectively, most of phosphorus accumulated in leafs, stem, branches and roots respectively, most sulphur accumulated in leafs, roots, branches and stem respectively, and most of carbon accumulated in stem, leafs, branches and roots respectively. By studying the accumulation of nutrients in trees of 2 areas found that trees at area B have accumulation of carbon higher than trees at area A, stem accumulated highest amount of carbon; trees at area B have accumulation of nitrogen, phosphorus and potassium higher than trees at area A, leafs accumulated highest amount of nitrogen, phosphorus and potassium; trees at area B have accumulation of sulphur higher than trees at area A, roots accumulated highest amount of sulphur; by comparing zone 1, 2 and 3 found that the most amount of carbon, sulphur, potassium and phosphorus was at zone 3, the most amount of nitrogen was at zone 1, the results show that nutrients accumulation of Avicenna marina at wastewater receptor area higher than the reference site because of higher nutrients availability in wastewater from LERD project.