Open AccessThe study of N:P ratio for estimating nutrient limitation at shallow lakes waters in Depok City West Java, Indonesia
Author(s) -
Melati Ferianita Fachrul,
Diana Irvindiaty Hendrawan,
Astri Rinanti
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/802/1/012040
Subject(s) - environmental science , dominance (genetics) , nitrate , nutrient , sewage , wastewater , phosphate , hydrology (agriculture) , ecosystem , nitrogen , phosphorus , environmental engineering , ecology , chemistry , geology , biology , biochemistry , geotechnical engineering , organic chemistry , gene
This study aims to analyze the concentration of Nitrate and Phosphate, also the N:P ratio in waters of shallow lakes in Depok City, West Java Province, Indonesia using secondary data collected in 2017 and 2019. In an environment, nitrogen and phosphate sources are fertilizers and wastewater discharged from livestock facilities and sewage from residential areas, which discharge into lakes. The results analysis of nitrate concentration ranged from 0.06– 3.02mg/L and phosphate concentration from 0.004-0.18mg/L. The N:P ratio calculation is known that 8.00-68.00, the value shows that there has been an excessive addition of phosphate elements into the shallow lake waters. Therefore, it appears that the N element is a limiting element that affects the biological conditions of ecosystems such as phytoplankton communities, species composition which is likely to occur dominance of certain types. This situation is quite reasonable, considering that around the lakes are residential areas that discharge domestic wastewater that uses detergents into the lakes. Anthropogenic nitrogen and phosphorus supply to natural ecosystems in shallow lakes in Depok City that the average N:P ratio in 2017 is 40.65 and 2019 is 35.99.