摘要
鄱阳湖流域内湖库资源众多,柘林湖作为鄱阳湖最大的入湖湖库,是鄱阳湖流域内最大的调节湖库,对鄱阳湖入湖径流有一定的影响,在鄱阳湖的入湖流量中占重要地位.本文以鄱阳湖流域内纳入水质良好湖泊的柘林湖为例,通过对柘林湖的形成及湖泊水系生态环境演变进行探讨,分析近30年来该湖水生生态环境的变化及其关键驱动力因子.综合研究表明:柘林湖水生生物多样性有下降趋势,水质有先变差后改善的趋势,其变化的驱动力主要是流域内人口数量增加、城镇化工业化进程加快、入湖污染负荷逐年增长、滨湖区生态安全屏障受人为破坏以及资源开发不合理等.只有处理好"人湖"和谐、"三次飞跃"和"四大转变",并采取科学合理的措施进行集成研究和综合治理,才能行之有效地改善柘林湖水生生态环境,并发挥其应有的生态效应,从而保障鄱阳湖入湖"一湖清水".
There are numerous lakes and reservoirs in the Lake Poyang basin. As the largest inflowing reservoir, Lake Zhelin serves as the largest regulating reservoir in the Lake Poyang basin. Lake Zhelin has a certain influence on the runoff into Lake Poy- ang. It can provide water flow to Lake Poyang during dry seasons and reduce the water flow during wet seasons. This paper focused on Lake Zhelin by discussing its formation and its water ecological environment changes. Then, Lake Zhelin＇s water environment changes in the past 30 years and the key driving factors of environmental evolution were analyzed. Results showed that Lake Zhelin＇s aquatic biodiversity decreased and water environment deteriorated but exhibited a recovery. The driving factors were the growing population in the watershed, leading to a higher pollution loading into the lake in recent years. This situation became worse due to further man-made destruction on the lake district ecological security barrier, unsustainable use and over exploitation of resources. Only by resolving the relationship between people and lake and taking reasonable measures to ca~ out integration research and comprehensive treatment, Lake Zbelin＇s water environment can be improved effectively and play its role in protecting Lake Poyang.
出处
《湖泊科学》
EI
CAS
CSCD
北大核心
2015年第2期266-274,共9页
Journal of Lake Sciences
基金
国家良好湖泊生态环境保护专项
江西环保科技项目(JXHBKJ201214)联合资助
关键词
鄱阳湖
柘林湖
水生生态环境
驱动力分析
Lake Poyang
Lake Zhelin
water ecological environment
analysis of driving factors
