秀丽高原鳅自然栖息地及人工驯养池水质评价研究

2015年全年对秀丽高原鳅(Triplophysa venusta)主要分布流域漾弓江上游鹤庆段开展水质调查,对洗马池、白龙潭、清水河、寺庄龙潭、美龙潭、西龙潭、人工驯养池及驯养池水源8个监测点的水温(T)、pH、溶解氧(DO)、氨氮(NH3-N)、总氮(TN)、总磷(TP)、高锰酸盐指数(CODMn)7个指标进行采样监测,采用模糊综合评价法和综合水质标识指数法对采样点水质现状进行评价;分析了人工驯养池和自然栖息地水质差异。结果显示:驯养池与自然栖息地部分水质指标差异显著;自然栖息地中,清水河夏季水质为Ⅲ类,主要污染物为TN,其余监测点各季节水质均满足水体环境功能区规划要求;驯养池夏季水质评价结果为Ⅳ类,主要污染物为TN。

Assessment of water quality of natural habitats and artificial domestication pond for Triplophysa venusta

The water quality was monitoried at eight sampling sites of Yanggong River upstream in Heqing County, inclu-ding Horsepond, White vauclusian spring, Qingshui river, Sizhuang vauclusian spring, Mei vauclusian spring, West vau-clusian spring, artificial domestication pond and water source. Total of seven water quality indicators including water tem-perature( T) , pH, dissolved oxygen ( DO ) , ammonium nitrogen ( NH3 - N ) , total nitrogen ( TN ) , total phosphorus ( TP) , chemical oxygen demand ( CODMn ) were determined. We assessed the water quality based on fuzzy comprehensive assessment model and comprehensive water quality identification index of each sampling site, and analyzed the water quality difference between artificial domestication pond and natural habitats. The results showed that there were significant differ-ences in part of the water quality indicators between artificial domestication pond and natural habitats. The water quality of Qingshui river belongs to classⅢin summer, and total nitrogen( TN) is the major pollutant, and the water quality of other natural habitats met the requirements for water environment function area. The water quality of artificial domestication pond belongs to class Ⅳ in summer, and total nitrogen( TN) is the major pollutant.