Analysis of Temporal -spatial Distribution Characteristicsof Water Quality Monitoring Stations in Poyang LakeCHEN Minghua'-2, LIU Lian', GE Cang'2(1. Key Laboralory of Poyang Lake Environment and Resource iliction Ministy of Education, olle of Resoucel, Emv?on-ment and Chemical Engineering, Nanchang Univeriy, Nanchang 30038, China; 2. College of Life Sciences, NanchangUniversiay, Nanchang 330038, China; 3. Hydrology Bureau of Jiangti Province, Nanchang 30000 China)Abstract; How to set up waler environment monitoring sites will have a diree ffe on evaluating the water environment. The keypoint of accessing the Poyang Lake water quality status and evolution trend is to establish a scientific and reasonable monitoringsystem in terma of time, space and frequency. Based on the analysis of sites distribution and monitoring data from the relevant .-gencies, the water environment monitoring sites in the Poyang Lake should be set up as follows: (1) There should be 35 sitesand 29 sections for environment monitoring in the Poyang Lake every year; (2) Water sampling should be taken at least once amonth without human production activities, such as sand mining. The time of sampling should be put on the late of month, andthere should be no raining 5d before sampling and the transparency of sampling should beyond 30cm; (3) Due to high spatial 14:36:58heterogeneity in the Poyang Lake, and the waler sampling only reflects water quality monitoring resuls in its area, it needs totake sampling from different areas;(4) Sampling should be conducted in the reverse water flow direction to ensure its diversity;(5) Water environment monitoring should be carried out with hydrologic monitoring simultaneously, and monitoring indicatorsshould include at least nutrien! and physical parameters.Key wurds: Puyaug Lake; walct cuviviuueul ;lydliulugy ;lempvial- spalial sites disuilulivn