摘要
达里湖是达里诺尔湿地的重要组成部分。根据2019年对达里湖水体的碱度、pH和硬度的调查结果,研究了达里湖水体碱度、pH和硬度的特征及其相互关系,并将研究结果与以往的达里湖相对应的调查资料进行比较,探讨了达里湖水体的水化学特点的形成及其对鱼类物种多样性的影响。研究结果表明,2019年7月,达里湖水体的碱度为69.34 mmol/L,1975~2019年明水期其平均每年增加1.01%;水体的pH为8.80,1975~2019年明水期其平均每年下降0.16%;水体的硬度为2.61 mmol/L,1975~2019年明水期其平均每年增加0.38%。1975年以来,达里湖水体的碱度和pH都不符合渔业对水质的一般要求,其水的硬度较适宜渔业;达里湖水体的高碱度和高pH对湖中的原有鱼类多样性尚无负面影响,但是其有可能限制普通淡水鱼类物种的移殖。
Dali Lake is an important part of the Dalinor wetlands.This paper reported the results of the investigation of alkalinity,pH and hardness of the water of Dali Lake in 2019.Comparing the results with the investigation data during 1975-1976,the effects of hydrochemical characteristics on the diversity of fish species were discussed in Dali Lake.In July 2019,the average alkalinity and hardness of the water in Dali Lake were 69.34 mmol/L and 2.61 mmol/L respectively,with an average pH 8.80.From 1975 to 2019,the average annual alkalinity and hardness increased by 1.01%and 0.38%,respectively,while the average annual pH decreased by 0.16%.The long-term acclimatization of high saline-alkaline water had no serious negative impact on the existing fish diversity in Dali Lake now,but it might limit the migration of other freshwater fish species.
作者
杨富亿
文波龙
李晓宇
杨艳丽
万斯昂
欧阳玲
刘文虎
王昭伟
孟祥鹏
李重祥
阿拉木斯
YANG Fuyi;WEN Bolong;LI Xiaoyu;YANG Yanli;WAN Siang;OUYang Ling;LIU Wenhu;WANG Zhaowei;MENG Xiangpeng;LI Chongxiang;Alamus(Key Laboratory of Wetland Ecology and Environment,Northeast Institute of Geography and Agroecology,Chinese Academy of Sciences,Changchun 130102,Jilin,P.R.China;Chifeng University,Chifeng 024000,Inner Mongolia Autonomous Region,P.R.China;Ecological Environmental Monitoring Station in Chifeng City,Inner Mongolia Autonomous Region,Chifeng 024000,Inner Mongolia Autonomous Region,P.R.China)
出处
《湿地科学》
CSCD
北大核心
2020年第6期646-652,共7页
Wetland Science
基金
内蒙古自治区赤峰学院院士专家工作站项目(cfxyys 201701)
吉林省委组织部人才团队项目(2016)资助。
关键词
达里湖
水体
碱度
PH
硬度
Dali Lake
waters
alkalinity
pH
hardness
