Dissolved organic carbon concentration of a natural water body and its relationship to water color in Central Kalimantan, Indonesia

• DOI: 10.1007/s10201-006-0174-0
• Publication Date: 2006-07-23T07:45:41Z
• Authors: Toshiyuki Ishikawa; Trisliana; Yurenfrie; Ardianor; Sulmin Gumiri
• Keywords: 0106 biological sciences; 13. Climate action; 15. Life on land; 01 natural sciences; 6. Clean water

In Central Kalimantan, Indonesia, the water of lakes and rivers showed high dissolved organic carbon (DOC) concentration, 5-50mgC/l. There was a clear relationship between DOC concentration and pH. DOC also contributed to low water transparency in the studied lakes. Water colors measured by spectrophotometer showed a strong relationship with DOC concentration, indicating high applicability of water color measurement for estimation of DOC. The development of a simple but quick estimation of DOC will contribute to understanding the seasonal dynamics of DOC, which might regulate both abiotic and biotic conditions in aquatic ecosystems in this area.