摘要
利用 1990—1999 年 10 a 间 6 个航次的调查资料,分析研究了该湾的生态环境特征及其与水体自净条件的关系。结果表明:该湾水体的自净条件较好,与水体的物理、化学和生物因素有密切关系。其中较强的水动力作用是污染物输送和扩散的有利条件;水体中硝酸盐含量及其所占 DIN 的百分比值较高,既体现了陆源含氮化合物的输入影响,也体现了含氮有机物在化学净化过程中的净化效果;R (NO3-N) 与 Chl-a 的显著正相关性以及水域中生物种类的多样性和较高的生物资源量,则显示了水体自净能力对海洋生物的重大影响作用。
Adopting the investigation data from 6 cruises in the Qinzhou Bay during 1990— 1999, this article has analyzed and studied the characteristics of the bionomical environment and the relationship between the characteristics and the self-purifying conditions of water body. The results show that the good condition of self-purification of the water body in the Bay is closely related to the physical, chemical, and biological factors. Therein, the powerful action of the water dynamics is beneficial to the delivery and diffusion of the pollutant substances. The fact that the nitrate contents in water body and its percentage rate in DIN are a bit high shows not only the inputting effects of the nitrogenous compounds from the land, but also the purifying results of the nitrogenous organic matter during the chemical purification process. The strong positive correlation of R (NO3-N) and Chl-a, the variety of biological lives and the higher biotic stock number in the water area show that the self-purifying ability of water body has a great effect on the marine lives.
出处
《海洋通报》
CAS
CSCD
北大核心
2004年第4期50-54,共5页
Marine Science Bulletin
关键词
钦州湾
生态环境
水体自净
Qinzhou Bay
bionomical environment
self-purification of water body
