| 近年来香溪河营养盐时空分布趋势研究 |
| TEMPORAL AND SPATIAL DISTRIBUTION TREND OF NUTRIENTS IN XIANGXI BAY IN RECENT YEARS |
| 投稿时间：2017-07-26 修订日期：2018-07-18 |
| DOI：10.15928/j.1674-3075.2018.04.006 |
| 中文关键词:三峡库区 香溪河 富营养化 综合营养状态指数法 |
| 英文关键词:the Three Gorges Reservoir(TRG) Xiangxi Bay(XXB) water eutrophication the comprehensive nutrition state index |
| 基金项目:国家重点基础研究发展计划(973)项目(2014CB460601)；国家科技合作与交流专项项目(2014DFE70070)；国家自然科学基金青年(51509086)； |
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| 中文摘要: |
| 为研究近年来香溪河库湾营养盐分布特征及营养化程度,于2008~2015年春季水华敏感期对三峡水库香溪河库湾进行水环境监测,使用改进的综合营养状态指数法对其水体营养化状况进行分析和评价。结果表明：香溪河库湾TN、TP浓度从河口到香溪河上游纵向分布规律明显,TN浓度从下游河口至上游呈现逐渐递减的趋势,TP浓度从下游河口至上游呈逐渐递增的趋势；透明度的范围为0.6~6m,香溪河库湾TN平均浓度变化范围为；TP平均浓度变化范围为；叶绿素的含量范围为0.53~184.61μg/L；2008~2015年香溪河库湾综合营养状态指数变化范围为18~78。从时间上看,香溪河库湾综合营养状态指数上游>中游>下游,从年际上看,整体波动不明显,甚至略有升高,可见未来的香溪河富营养化问题将持续存在。 |
| 英文摘要: |
| In order to study the characteristics of nutrient distribution and nutrient level of Xiangxi Bay(XXB) in recent years, the water environment monitoring of Xiangxi Bay(XXB) in the Three Gorges Reservoir (TRG) was conducted in the spring of 2008 ~ 2015, and the comprehensive nutritional status index method was used to analyze Its water nutrition status analysis and evaluation. The results showed that the distribution of TN and TP from the estuary to the upper reaches of the Xiangxi Bay(XXB) was significant, and the TN concentration gradually decreased from the downstream estuary to the upstream, and the TP concentration gradually increased from the downstream estuary to the upstream. The range of transparency was 0.6 ~ 6m, the average concentration of TN in Xiangxi Bay(XXB)was 0.68 ~ 1.35mg / L, the variation range of TP was 0.10 ~ 0.26mg / L, and the chlorophyll content ranged from 0.53 to 184.61μg / L ; 2008 ~ 2015 Xiangxi Bay(XXB) comprehensive nutritional status index range of 18 to 78. From the time point of view, Xiangxi Bay(XXB) comprehensive nutritional status index upstream> midstream> downstream, from the international point of view, the overall volatility is not Obviously, even a slight increase, we can see the future of Xiangxi Bay(XXB) eutrophication problem will continue to exist |
| 桑文璐,杨霞,宋林旭,纪道斌,龙良红,李欣.2018.近年来香溪河营养盐时空分布趋势研究[J].水生态学杂志,39(4):38-45. |
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