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中国农学通报

中国农学通报 ›› 2011, Vol. 27 ›› Issue (3): 421-424.

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

微山湖典型水域营养盐分布及富营养化评价

陈静 蒋万祥 王洪凯   

  • 收稿日期:2010-11-01 修回日期:2010-11-24 出版日期:2011-02-05 发布日期:2011-02-05
  • 基金资助:

    山东省自然科学基金

Evaluation on Nutrients Distribution and Eutrophication in Representative Water Areas of Weishan Lake

  • Received:2010-11-01 Revised:2010-11-24 Online:2011-02-05 Published:2011-02-05

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摘要：

为了明确微山湖水体营养盐分布及其富营养化水平现状，笔者根据2010年4月对微山湖3个典型水域营养盐监测数据，分析了微山湖营养盐空间分布特征，并应用卡尔森营养状态指数法和潜在性富营养化评价模式对研究水域富营养化现状进行了评价。结果表明：总磷、磷酸盐、总氮、硝酸盐氮、氨氮、叶绿素a含量均表现为：入湖河道> 湖中航道>养殖区；透明度表现为：养殖区>入湖河道>湖中航道。入湖河道、湖中航道和养殖区的卡尔森营养状态指数均值分别为63.0、61.8和52.0，入湖河道和湖中航道为重度偏中度营养水平，养殖区为中度偏重度营养水平；潜在富营养化评价表明：除S1站位为富营养，S5站位为磷中等限制潜在性富营养外，其他站位均为磷限制潜在性富营养水平。

关键词: 氮素利用, 氮素利用

Abstract:

In order to make clear the nutrient salts distribution and trophic state in the Weishan Lake, the spatial distribution of nutrients in Weishan Lake was analyzed based on the monitoring data in April in 2010; Carlson trophic state index and potential eutrophication evaluation were applied to evaluate the eutrophic state of Weishan Lake. The results indicated that TP, P-PO4, TN, N-NO3, N-NO2, N-NH4 and chlorophyll a content in entryway portion>sea-route portion>breed portion; SD in sea-route portion>entryway portion>breed portion. The average Carlson trophic state indices in entryway portion, sea-route portion and breed portion were 63.0, 61.8 and 52.0 respectively; All of the three portion of the lake had reached or been close to eutrophication level. Potential eutrophication evaluation was used to evaluate trophic level, and the results showed that excepting S1 belonged to eutrophication level and S5 belonged to phosphorus moderate limit，all other stations belonged to phosphorus limit potential eutrophication level.