摘要
调查了贵州省20座代表性水库的营养水平。总磷、总氮、叶绿素和透明度分别是0.01~0.63 mg/L、0.48~7.75 mg/L、1.60~130.11 mg/m3和0.30~8.00 m。根据这4个因子综合加权营养状态指数在32.40~72.80之间,季节差异较大,枯水期水质好于丰水期,枯水期大多数水库处于中营养状态,在丰水期富营养状态的水库明显增多。珠江流域的水库水质明显好于长江流域水库水质。
The trophic level of 20 representative reservoirs was surveyed in Guizhou province in 2014 -2015 years. Total phosphorus（ TP）, total nitrogen（TN）, chlorophyll a, and secchi disk depth（SD） varied from 0.01 -0, 63 rag/L, 0.48-7.75 mg/L, 1.60 - 130. 11 mg,/m3 and 0.30 - 8.00 m respectively. Trophic status index （TS]） based on TP, TN, chlorophyll-a and SD ranged between 32.40 72.80 with apparent seasonal variation. The water quality is better in dry season than in flood sea- son. Most of the reservoirs were mesotrophic in the dry season, while the number of the eutrophic res- ervoir increased in the flood season. The water ously better than in the Yangtze river basin. quality of the reservoir in the Pearl river basin is obviously better than in the Yangtze river basin.
作者
李秋华
LI Qiuhua(Key Laboratory for Information System of Mountainous Area and Protection of Ecological Environment of Guizhou Province, Guizhou Normal University, Guiyang, Guizhou 550001, Chin)
出处
《贵州师范大学学报（自然科学版）》
CAS
2018年第2期1-8,共8页
Journal of Guizhou Normal University：Natural Sciences
基金
国家重点研究计划"973"前期项目(2012CB426506)
国家自然科学基金资助项目(U1612442)
贵州省水利厅资助项目(KT201401)
贵州省科技厅资助项目(黔科合J重大字[2015]2001
黔科合人字(2015)10号)
贵州省教育厅(黔教合KY字[2017]032)
关键词
水库
富营养化
水质
营养状态
reservoir
eutrophication
water quality
trophic state
