西藏雅鲁藏布江水质时空特征分析  

Spatio-Temporal Characteristics of Yarlung Zangbo River in Tibet

作　　者：李红敬[1] 张娜[2] 林小涛[1] 

机构地区：[1]暨南大学水生生物研究中心,广州510632 [2]中国科学院武汉植物研究所,武汉430074

出　　处：《河南师范大学学报（自然科学版）》2010年第2期126-130,共5页Journal of Henan Normal University(Natural Science Edition)

基　　金：国家高技术研究发展计划(863计划)项目(2005AA6010100503)

摘　　要：通过对雅鲁藏布江的水质分析发现,在6～10月,溶氧值低、水温较高、12月～次年2月高,溶氧值高、水温较低、8月悬浮物含量高;下游较中游的pH值和悬浮物含量低.拉孜、怒各沙和羊村水质属于Ⅲ类,曲水、米林和怒下河段为II类水.检测水质除雅鲁藏布江上游的拉孜、怒各沙和中下游的羊村水质属于Ⅲ类外,其它河段为II类水.雅鲁藏布江下游水质符合渔业水质标准,但雅鲁藏布江干流中上游江段Cu含量、整个干流8月份的水体悬浮物含量超出渔业水质标准.The aquatic chemistry characteristcs and water quality of the Yarlung Zangbo River are analyzed. The results show that dissolved oxygen is lower,water temperature higher from Jun to Oct. dissolved oxygen is higher,water temperature lower from Dec to next year Feb. Suspended substances is highest in Aug. Both suspended substances and water temperature are higher,pH and suspended substances are higher in the Yarlung Zangbo River middlestream than River downstream. Water quality of Yarlung Zangbo River except Laza,Nugeza and Yangzun range II according to the standards. The water quality of the Yarlung Zangbo River downstream accord with the standards for fishery while the pH and Cu content in the Yarlung Zangbo River up- and middle- stream,as well as suspended substances of all the Yarlung Zangbo River in Aug,are overrun.

关 键 词：雅鲁藏布江 水质 时空变化 

分 类 号：X835[环境科学与工程—环境工程]