<![CDATA[Kelingi River condition that polluted due to community activities, will certainly disrupt the balance of ecosystems and biodiversity in the River. Especially the Chlorophyta microalgae, which can be used as bioindicator. This study aims to analyze the diversity of Chlorophyta microalgae in Sungai Kelingi Kota Lubuklinggau. This study uses direct survey method, the station consists of 4 stations and each station consists of 3 points. Determination of stations based on different ecosystem characteristics in Sungai Kelingi Kota Lubuklinggau. Based on the results of the research, the type of chlorophyta microalgae found in Kelingi River Lubuklinggau City, consists of: 3 Class 8 Order 12 Family 14 Genus 15 Species. The diversity of stations 1 (1.63), station 2 (1.16), station 3 (2.12) and station 4 (2.10). The dominance of station 1 (32), station 2 (90), station 3 (46) and station 4 (166). Uniformity of station 1 (0.60), station 2 (0.40), station 3 (0.78) and station 4 (0.77). Abiotic factors The River Kelingi consists of: temperature (25.10C), acidity (7.29), dissolved oxygen (43.63mg/ L) and brightness (72.47 cm). Chlorophyta is one of the microalgae divisions that are commonly encountered in the Kelingi River, the unstable growth of Chlorophyta will cause disturbed water conditions. Based on these results, it can be concluded that the diversity of Chlorophyta in Kelingi River Lubuklinggau City is included in the criteria of medium diversity. Keywords: Chlorophyta, Diversity, Lubuklinggau, Microalgae, River Kelingi]]>
