欢迎访问《中国农学通报》,

中国农学通报 ›› 2011, Vol. 27 ›› Issue (7): 395-399.

所属专题: 农业生态

• 水产 渔业 • 上一篇    下一篇

集约化池塘生态系统健康评价初探

范立民 吴伟 胡庚东 瞿建宏 孟顺龙 裘丽苹 陈家长   

  • 收稿日期:2010-08-23 修回日期:2010-09-21 出版日期:2011-04-05 发布日期:2011-04-05
  • 基金资助:

    中央级公益性科研院所基本科研业务费专项资金项目

Preliminary Exploration on Assessment of Intensive Pond Ecosystem Health

  • Received:2010-08-23 Revised:2010-09-21 Online:2011-04-05 Published:2011-04-05

摘要:

探索应用营养状态-综合指数法(TSI-CI)对集约化养殖池塘进行生态系统健康评价。分别以无处理池塘、经过人工基质悬挂处理池塘和经过浮床种植水生植物处理池塘为研究对象,首先选用Chla、SD、TP和TN 4个指标,用相关加权营养状态指数法进行营养状态评价,再选择物化和生物指标无量纲化处理后,计算综合指数进行综合评价。结果表明:经过人工基质悬挂处理和浮床种植水生植物空心菜均使得集约化池塘的综合营养指数下降,综合指数上升,2种净水措施均使得集约化池塘生态系统健康状况得到改善,与营养状态降低相对应。应用营养状态-综合指数法(TSI-CI)评价净水技术对池塘生态系统健康状况的影响可行。

关键词: 青贮玉米, 青贮玉米, 种植方式, 生物产量, 水分利用效率, 氮肥利用效率

Abstract:

Ecosystem health was a newly proposed concept in the world with the environment becoming a serious issue. A method, trophic state-comprehensive index based on researches on the ponds ecosystem health had been proposed to assess the ecosystem health of 3 kinds of ponds under different water purification methods, the conventional water self-purification, using of immobilized bio-film structure of artificial substrates, and the using of floating bed vegetation (the Ipomoea aquatica). Firstly, 4 indices including Chla, SD, TP and TN were chosen to calculate the trophic status index (TSI). Secondly, nondimensionalizated indicators such as physical indicators, chemical indicators and biological indicators were used to calculate comprehensive index to estimate the ecosystem health state. The result showed that under the 2 water purification methods, the TSI of the intensive ponds decreased, and the CI of the intensive ponds increased, which meant that the 2 water purification methods can make the ecosystem health of the intensive ponds much better. Most importantly, the results also reflected the fact that the combination of TSI and CI can be the method of assessing the ecosystem health of intensive ponds and even all trophic-level ponds.

中图分类号: