| 引用本文: | 成小英,王国祥,濮培民,张圣照,陈宝君.冬季富营养化湖泊中水生植物的恢复及净化作用.湖泊科学,2002,14(2):139-144. DOI:10.18307/2002.0207 |
| CHENG Xiaoying,WANG Guoxiang,PU Peimin.Restoration and Purification of Macrophytes in An Eutrophic Lake during Autumn and Winter. J. Lake Sci.2002,14(2):139-144. DOI:10.18307/2002.0207 |
|
| 摘要: |
| 秋末冬初大多数水生植物处于衰亡期,在透明度较低的富营养化湖泊中引种和恢复水生植物往往十分困难.借助物理生态工程技术,秋末冬初在重富营养化湖泊中新建的 1000m2围隔内,引种漂浮植物和沉水植物;利用群落间的相互作用及人工干预,若干种水生高等植物不仅能够引种存活,而且能够快速提高水体透明度、改善水质.引种水生高等植物 3周后,有水生高等植物的围区内水体透明度提高一倍,并长期保持在较高水平.6周后,有植物围区内水体TN浓度比对照围区及开敞水域分别降低 43.7%和 59.4%,TP分别降低 50.3%和 57.0%;6个月后,TN分别降低 61.6%和 79.7%;TP有植物围区较开敞水体降低 72.9%. |
| 关键词: 富营养化 水生高等植物 恢复 净化 水质 湖泊 |
| DOI：10.18307/2002.0207 |
| 分类号: |
| 基金项目: |
|
| Restoration and Purification of Macrophytes in An Eutrophic Lake during Autumn and Winter |
|
CHENG Xiaoying, WANG Guoxiang, PU Peimin
|
|
Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, P.R.China
|
| Abstract: |
| From the late autumn to the early winter, several macrophytes were introduced to our newly constructed enclosures in a eutrophic lake.The purification and ecological restoration were investigated during the declining season of most macrophytes.The results show several macrophytes could be introduced to this eutrophic lake by physico-ecological engineering technique.Moreover, the newly introduced macrophytes could increase the transparency, improve water quality and remediate the eutrophic ecosystem.After three weeks, the transparency increases two-time as much as original level in the enclosure with macrophytes.Comparing with control enclosure and open water, TN concentration decreased by 43.7% and 59.4% after three weeks, 61.6% and 79.7% after six weeks, respectively;and TP concentration decreased by 50.3% and 57.0% after three weeks. |
| Key words: Eutrophication macrophytes purification water quality eutrophic lakes restoration |
