黑龙江水产2024，Vol.43Issue(6)：690-697,8.
喀什河流域重要渔业水域环境质量评估
Environmental quality assessment of important fishery waters in Kashi River Basin
摘要
Abstract
In order to assess the environmental quality of important fishery waters in the Kashi River Basin,the wa-ter quality of Kashi River,one of the three tributaries of the Ili River,was investigated from April to November 2023.The pH value,suspended matter,chlorophyll a(Chla),nitrite nitrogen(NO2--N),nitrate nitrogen(NO3--N),ammonia nitrogen(NH4+-N),permanganate index(CODMn)were determined),total nitrogen(TN),total phosphorus(TP),dissolved oxygen(DO),water temperature T,dissolved phosphate(PO43-),sul-fide(S2-)a total of 13 indicators.The water quality and pollution characteristics of the basin were studied,and the nutritional status was evaluated by comprehensive nutritional status index.The results show that the water quali-ty of Kashi River basin is weakly alkaline,the average pH value is 7.24～8.64,and the DO varies greatly throughout the year,ranging from 4.18 mg/L to 12.39 mg/L.There was no significant difference in CODMn content among all sampling points(P＞0.05),and the variation range was 0.6 mg/L～2.1 mg/L.TN content in nutrient salts had significant differences at different time and sampling points(P＜0.05),TN content in culture area in-creased compared with control area,and TN content gradually decreased after leaving culture area.The content of chlorophyll a(Chla)in cage culture area was slightly higher than that in control area.The comprehensive nutrition index of each sampling point was 15.71～22.87,and the water body was in the state of poor nutrition.The evalua-tion results can provide data accumulation and technical support for the development and utilization of fishery re-sources in Xinjiang's suitable fishing waters.关键词
喀什河流域/渔业水质/综合营养状态指数Key words
Kashi River basin/fishery water quality/comprehensive nutritional status index分类
农业科技引用本文复制引用
王甜,孙世萍,杨帆,牛建功,张涛,蔡林钢..喀什河流域重要渔业水域环境质量评估[J].黑龙江水产,2024,43(6):690-697,8.基金项目
新疆维吾尔自治区重点研发任务"虹鳟大水面生态网箱养殖水域环境管理与生态风险防控关键技术"专项资助(No.2022135761). （No.2022135761）
