动物扰动对湿地植物根区有机碳和氮形态的影响

doi:10.11934/j.issn.1673-4831.2016.05.019

生态与农村环境学报 ›› 2016, Vol. 32 ›› Issue (5): 813-817.doi: 10.11934/j.issn.1673-4831.2016.05.019

动物扰动对湿地植物根区有机碳和氮形态的影响

王琪飞, 顾佳茹, 徐德福, 李鑫, 李映雪, 张玉

大气环境与装备技术协同创新中心/江苏省大气环境监测与污染控制高技术研究重点实验室, 江苏南京 210044

收稿日期:2015-10-08 出版日期:2016-09-25 发布日期:2016-10-08
通讯作者: 徐德福,E-mail:defuxu1@163.com E-mail:defuxu1@163.com
作者简介:王琪飞(1991-),男,江苏扬中人,硕士生,主要研究方向为污染水体生态修复。E-mail:403446121@qq.com
基金资助:
江苏省自然科学基金（BK20141477）；江苏省大学生实践创新项目（201610300037）；国家自然科学基金（40901257）；江苏高校“青蓝工程”（20161507）；教育部留学回国人员科研启动基金（20145048）

Effect of Animal Disturbance on Organic Carbon and Form of Nitrogen in Wetland Plant Root Zone

WANG Qi-fei, GU Jia-ru, XU De-fu, LI Xin, LI Ying-xue, ZHANG Yu

Collaborative Innovation Center of Atmospheric Environment and Equipment Technology/Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Nanjing 210044, China

Received:2015-10-08 Online:2016-09-25 Published:2016-10-08

摘要/Abstract

摘要：

构建复合垂直流人工湿地，分别向复合垂直流人工湿地的下行池和上行池中加入蚯蚓和泥鳅，研究泥鳅和蚯蚓对人工湿地中植物根区基质有机碳和氮形态及含量的影响。结果表明，加入泥鳅后人工湿地植物根区基质的总有机碳（TOC）、易氧化有机碳（EOOC）、微生物量有机碳（MBC）、可溶性有机碳（DOC）和硝态氮平均含量分别增加16.7%、10.8%、19.1%、33.8%和68.4%，但铵态氮平均含量减少14%。加入蚯蚓后TOC、EOOC、MBC、DOC和硝态氮的含量分别增加74.6%、39.7%、40.4%、45.1%和91.8%；铵态氮平均含量下降42.8%。人工湿地中加入蚯蚓后有机碳、硝态氮和铵态氮含量的变化率比单独加入泥鳅高。相关分析表明，TOC、EOOC、MBC含量分别与硝态氮含量呈极显著正相关（P<0.01），加入动物提高了人工湿地植物根区有机碳含量，并促进人工湿地的硝化过程，增加硝态氮含量。

关键词: 人工湿地, 动物扰动, 有机碳组分, 硝态氮, 铵态氮

Abstract:

A complex vertical-flow wetland consisting of an upstream flow cell and a downstream flow cell was constructed in an experiment for exploration of effects of addition of earthworms and loaches into the two cells on organic carbon and nitrogen in form and content in the plant root zone of the constructed wetland. Results show that the addition of loaches increased the average content of total organic carbon (TOC), easily oxidized organic carbon (EOOC), microbial biomass carbon (MBC), dissolved organic carbon (DOC) and nitrate nitrogen by 16.7%, 10.8%, 19.1%, 33.8% and 68.4%, respectively, and decreased the average content of ammonia nitrogen by 14%, while the addition of earthworms increased the content of TOC, EOOC, MBC, DOC and nitrate nitrogen by 74.6%, 39.7%, 40.4%, 45.1% and 91.8%, respectively, and decreased the content of ammonia nitrogen by 42.8%. Obviously the effects of the addition of earthworms were higher than those of loaches on organic matter, nitrate nitrogen and ammonia nitrogen. Correlation analysis shows that the content of TOC, EOOC and MBC was significantly related to the content of nitrate nitrogen (P<0.01). All the findings indicate that introduction of animals into wetlands increases organic carbon content in the plant root zone of the constructed wetland, and stimulates nitrification process in the wetland, thus increased the content of nitrate nitrogen in the soil.

Key words: constructed wetland, animal disturbance, organic carbon fractions, nitrate nitrogen, ammonia nitrogen

中图分类号:

王琪飞, 顾佳茹, 徐德福, 李鑫, 李映雪, 张玉. 动物扰动对湿地植物根区有机碳和氮形态的影响[J]. 生态与农村环境学报, 2016, 32(5): 813-817.

WANG Qi-fei, GU Jia-ru, XU De-fu, LI Xin, LI Ying-xue, ZHANG Yu. Effect of Animal Disturbance on Organic Carbon and Form of Nitrogen in Wetland Plant Root Zone[J]. Journal of Ecology and Rural Environment, 2016, 32(5): 813-817.

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动物扰动对湿地植物根区有机碳和氮形态的影响

Effect of Animal Disturbance on Organic Carbon and Form of Nitrogen in Wetland Plant Root Zone

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