首页 | 期刊简介 | 编委会 | 投稿指南 | 常用下载 | 联系我们 | 期刊订阅 | In English
引用本文:章宗涉,黄昌筑.固城湖生物资源利用和富营养化控制的研究.海洋与湖沼,1996,27(6):651-656.
【打印本页】   【HTML】   【下载PDF全文】   查看/发表评论  下载PDF阅读器  关闭
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被:浏览 1532次   下载 1189 本文二维码信息
码上扫一扫!
分享到: 微信 更多
固城湖生物资源利用和富营养化控制的研究
章宗涉1, 黄昌筑2
1.上海师范大学生物系 上海200234;2.南京市环境科学研究所 南京 210013
摘要:
于1989-1992年通过野外调查、室内试验、池塘模拟和数学模型等方法,研究江苏省固城湖的理化条件,初级生产生物生长及其有关因子,水草、藻和鱼、蟹间的相互关系,以及水草渔业利用对水质的影响等。结果表明,固城湖渔业增产潜力还很大;但河蟹和鱼类的放养对水草资源有影响,如果放养强度过大,会使水草全部消亡,将会对水质产生不良影响(浮游植物过量繁殖,水透明度降低)。从兼顾资源持续利用和富营养化控制角度提出了渔产量模式建议,可增加河蟹产量约1.5倍,总渔产量约12.5%。
关键词:  水生植物  生物资源利用  富营养化控制  生态模型  渔产潜力
DOI:
分类号:
基金项目:国家自然科学基金资助项目,3880155号
附件
STUDY ON BIORESOURCES UTILIZATION AND EUTROPHICATION CONTROL IN LAKE GUCHENG
Zhang Zongshe1, Huang Changzhu2
1.Departmeat of Biology, Shanghai Normal University, Shanghai 200234;2.Nanjing Institute of Environmental Sciences, Nanjing 210013
Abstract:
Field survey, laboratory experiments, pond simulated experiments and mathematical modeling were resorted to in this 1989 - 1992 study on the physico - chemical and biological conditions , the production of primary producers and its environmental factors, the relationship between aquatic macrophytes, phytoplankton, and fish / crab, and the effects of utilization of macrophytes on water quality in Lake Gucheng, Jiangsu Province.

The results showed that the stocking of crab and fish has effects on water plants. Pond simulated experiments showed that in pond with low stocking density (0.23 g/m2, pond No.2) of crab, the macrophytes decreased, but did not disappear as in the other two ponds (No.3 and No.4) with stocking density higher than 1.75 g/m2. The decrease or disappearence of macrophytes increased phytoplankton growth and low-ered water transparency.

The ecological model, a modified Lotka–Volterra model of biological competition, predicted that if the standing crop of fish and crab in this lake during springtime were higher than 2.5 g/m2, the macrophytes would not grow. Based on the macrophyte resources (4.12 kg/m2), the model predicted a potential amual fishery productivity of about 1 600 t and an armually averaged phytoplankton chlorophyll content of 3.69 mg/m3, which is lower than the criterion (10 mg/m3) for eutrophic state.

From the point of view of the sustainable utilization of bioresources and eutrophication control, the authors suggest a fishery production pattern which could increase the yield of crab to about 1.5 times and the total fishery yield by about 12.5%.

Key words:  Aquatic macrophyte, Bioresources utilization, Eutrophication control, Ecological modeling, Potential fishery productivity
版权所有 海洋与湖沼 Oceanologia et Limnlolgia Sinica Copyright©2008 All Rights Reserved
主管单位:中国科协技术协会 主办单位:中国海洋湖沼学会
地址:青岛市海军路88号  邮编:266400  电话:0532-82898753  E-mail:ols@qdio.ac.cn
技术支持:北京勤云科技发展有限公司