库塘湿地净化效果与植被分布的关系研究  

Study on the Relationship Between Purification Effect and Vegetation Distribution of Reservoir Pond Wetland

作　　者：杨蕾霖 黄中情 熊雨院 字建婷 那近霞 李炜 刘德才 YANG Leilin;HUANG Zhongqing;XIONG Yuyuan;ZI Jianting;NA Jinxia;LI Wei;LIU Decai(School of Environmental Science and Engineering,Kunming University of Science and Technology,Kunming 650500,China;National Observation and Research Station of Erhai Lake Ecosystem in Yunnan,Dali 671000,China;Yunnan Dali Research Institute of Shanghai Jiaotong University,Dali 671000,China)

机构地区：[1]昆明理工大学环境科学与工程学院,云南昆明650500 [2]云南洱海湖泊生态系统国家野外科学观测研究站,云南大理671000 [3]上海交通大学云南(大理)研究院,云南大理671000

出　　处：《环境科学与技术》2024年第7期27-34,共8页Environmental Science & Technology

基　　金：国家重点研发计划(2021YFD1700400)。

摘　　要：该研究以洱海流域263座库塘湿地为研究对象,探讨了库塘湿地对氮、磷和有机质的净化效果,以及植被分布情况对库塘湿地净化效果的影响。结果表明:农田尾水、污水尾水和河流异位净化型库塘湿地对TN和TP的去除率高于COD,且3种功能类型库塘湿地对TN、TP和COD的净化效果表现为旱季高于雨季。库塘湿地植被种类单一,挺水植被是主要植被,超70%的库塘湿地挺水植被覆盖度范围为25%~75%,入侵植被分布广泛,总覆盖度超11%。物种数和覆盖度均与净化效果正相关,且物种数和覆盖度对TP的影响大于TN,覆盖度对TN、TP去除率的影响大于物种数。With 263 reservoir pond wetlands in Erhai Lake Basin as the research object,this study discussed the purification effects of reservoir pood wetlands on nitrogen,phosphorus and organic matter,and the influence of vegetation distribution on the purification effect of reservoir wetlands.The results showed that the removal rates of TN and TP in farmland tail water,sewage tail water and river ectopic purification pond wetland were higher than that of COD,and the removal rates of TN,and TP in three functional types of reservoir pond wetlands were higher than that of COD.The purification effect of TP and COD in dry season were higher than that in rainy season.The vegetation types of reservoir pond wetland was single,and the emergent vegetation was the main vegetation.More than 70%of the reservoir pond wetland emergent vegetation coverage ranged from 25%to 75%.Invasive vegetation was widely distributed,with a total coverage of more than 11%.The number of species and coverage were positively correlated with the purification effect,and the effect of species and coverage on TP were greater than that of TN.The effect of vegetation coverage on TN and TP removal rate were greater than the number of species.

关 键 词：洱海流域 库塘湿地 净化效果 植被分布 

分 类 号：X171.4[环境科学与工程—环境科学] X52