生态与农村环境学报2016，Vol.32Issue(5)：813-817,5.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
Effect of Animal Disturbance on Organic Carbon and Form of Nitrogen in Wetland Plant Root Zone
摘要
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 ni⁃trogen in form and content in the plant root zone of the constructed wetland. Results show that the addition of loaches in⁃creased 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%, respec⁃tively, 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 in⁃dicate 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.关键词
人工湿地/动物扰动/有机碳组分/硝态氮/铵态氮Key words
constructed wetland/animal disturbance/organic carbon fractions/nitrate nitrogen/ammonia nitrogen分类
资源环境引用本文复制引用
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):813-817,5.基金项目
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 （）
