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中国农学通报 ›› 2010, Vol. 26 ›› Issue (24): 397-402.

• 水产 渔业 • 上一篇    下一篇

流沙湾悬浮物数量动态变化规律的初步研究

申玉春 齐明 朱春华 叶宁 谢恩义 吴灶和 杜晓东   

  • 收稿日期:2010-05-07 修回日期:2010-06-27 出版日期:2010-12-20 发布日期:2010-12-20
  • 基金资助:

    广东省科技计划项目“流沙湾、柘林湾环境容量及其生态环境修复技术研究与示范

Preliminary investigations on variations of suspended matter in the Liusha Bay

  • Received:2010-05-07 Revised:2010-06-27 Online:2010-12-20 Published:2010-12-20

摘要:

在流沙湾设置9个观测站,对透明度和悬浮物数量动态变化规律进行了研究,结果表明:海湾水温周年平均值为26.4 ℃,变化范围为19.0~31.9 ℃;水域透明度年平均值为133.3 cm,变化范围为50~240 cm;悬浮物含量变化在9.12~29.90 mg/L之间,平均为18.70 mg/L。水域悬浮物含量有较明显的月变化规律(P<0.05),总的变化趋势是年水体悬浮物浓度呈先升高后降低的折线起伏变化分布。悬浮物含量多数观测站最高值出现在5月份,其平均值为26.81 mg/L。水体悬浮物数量的水平分布表现为5号站、6号站和9号站含量较高,1号站、3号站和8号站含量较低,即沿岸观测站高于航道与湾口。

关键词: 城乡一体化, 城乡一体化, 路径, 审视

Abstract:

In this study, 9 sites were selected to analyze the water transparency and the variations of suspended matter in Liusha Bay, and these field investigations on these 9 sites were carried out 12 times in one year. The results were as follows: the annual mean water temperature of Liusha bay was 26.4 ℃, and the water temperature variation ranger from 19.0 to 31.9 ℃; The annual average water transparency was 133.3 cm, and the water transparency changed from 50 cm to 240cm; The contents of suspended matter were varied from 9.12 mg/L to 29.90 mg/L, and the annual mean value was 18.7 mg/L. The contents of suspended matter was significantly affected in different months(P<0.05). The whole variation trend of the contents of suspended matter was increased first, then decreased, and fluctuant change. The maximum of most selected sites was in May and the mean value was 26.81 mg/L. The horizontal distribution of the contents of suspended matter was shown that the higher contents was in 5th site、6th site、9th site and the lower contents was in 1th site、3th site、3th site. The coastal stations were higher than the channel and bay mouth.