地理科学进展 ›› 2014, Vol. 33 ›› Issue (7): 918-924.doi: 10.11820/dlkxjz.2014.07.006
出版日期:
2014-07-25
发布日期:
2014-07-25
作者简介:
作者简介:秦伯强(1963-),男,江苏苏州人,研究员,博士生导师,主要从事湖泊生态修复研究,E-mail:
基金资助:
Boqiang QIN(), Yunlin ZHANG, Guang GAO, Guangwei ZHU, Zhijun GONG, Baili DONG
Online:
2014-07-25
Published:
2014-07-25
摘要:
中国是一个多湖泊的国家。由于经济快速发展及湖泊资源不合理的开发利用,中国湖泊的污染问题和生态系统退化相当普遍。特别是由于氮、磷等营养元素的富集造成的水体富营养化,导致蓝藻水华频繁发生,甚至出现了饮用水危机事件。由于缺乏基础理论的指导,中国湖泊富营养化治理曾经走过弯路。在没有实现控源截污的条件下,片面强调生态恢复来净化湖泊水环境,一度成为富营养化湖泊治理的主流思想。实际上,湖泊生态恢复是有条件的,而对这些条件的诊断和分析是开展湖泊生态恢复的前提和基础。通过对太湖水生植物分布及其影响因子分析,确定沉水植物恢复的核心条件是水下光照条件。水下光照条件受富营养水平、悬浮物浓度与水深等因子的影响。只有当一个水域的真光层深度接近水深的情况(比值>0.8),恢复水生植物才有可能。改善水下光照条件,包括降低水深,提高透明度,消除风浪等措施,实际上,都是增加真光层深度与水深的比值。在上述生态恢复条件不具备的情况下,湖泊治理与恢复的工作更多地应该聚焦在控源截污方面。这对中国湖泊污染治理与生态恢复具有普遍的意义。
中图分类号:
秦伯强, 张运林, 高光, 朱广伟, 龚志军, 董百丽. 湖泊生态恢复的关键因子分析[J]. 地理科学进展, 2014, 33(7): 918-924.
Boqiang QIN, Yunlin ZHANG, Guang GAO, Guangwei ZHU, Zhijun GONG, Baili DONG. Key factors affecting lake ecological restoration[J]. PROGRESS IN GEOGRAPHY, 2014, 33(7): 918-924.
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