| 洱海湖滨带挺水植物残体腐解特征及其环境效应初探 |
| |
| 引用本文： | 叶碧碧,曹德菊,储昭升,庞 燕,李 浩,肖蓬蓬.洱海湖滨带挺水植物残体腐解特征及其环境效应初探[J].环境科学研究,2011,24(12):1364-1369. |
| |
| 作者姓名： | 叶碧碧 曹德菊 储昭升 庞 燕 李 浩 肖蓬蓬 |
| |
| 作者单位： | 1.安徽农业大学资源与环境学院, 安徽 合肥 238300;中国环境科学研究院湖泊生态环境创新基地, 北京 100012 |
| |
| 基金项目： | 国家水体污染与治理科技重大专项(2008ZX07105-004) |
| |
| 摘 要： | 采用试验模拟的方法，研究洱海4种主要挺水植物茭草(Zizania caduciflora)、香蒲(Typha latifolia)、水葱(Scirpus validus)和芦苇(Phragnites australis)在水体中的腐解特征. 结果表明:在21 d的腐解试验中，水葱腐解速率最快，茭草和香蒲其次，芦苇最慢; 挺水植物单位干物质TN释放量表现为水葱>茭草≈香蒲>芦苇，TP释放量表现为水葱>茭草>香蒲>芦苇; 4种植物TP释放率均高于TN，腐解出的TP进入水体的比例也明显高于TN. 水体中ρ(TN)，ρ(TP)及ρ(CODCr)均在腐解初期(1～3 d)快速上升，pH和ρ(DO)快速下降; 随后，ρ(TN)，ρ(TP)及ρ(CODCr)均缓慢下降，pH和ρ(DO)则缓慢回升. 结合洱海湖滨带挺水植物空间分布的调查结果，估算全湖湖滨带4种挺水植物中TN和TP的总质量分别为17.622和2.870 t，其中茭草和香蒲中的TN和TP分别占91%和95%，对茭草和香蒲进行适时、适宜的收割对改善湖滨带的水质具有重要的意义.
|
| 关 键 词： | 洱海 挺水植物 腐解 释放量 |
| 收稿时间： | 2011/3/19 0:00:00 |
| 修稿时间： | 2011/5/8 0:00:00 |
Decomposition Characteristics of Emergent Aquatic Plant Residues from the Lakeshore of Erhai Lake and their Environmental Effects |
| |
| YE Bi-bi,CAO De-ju,CHU Zhao-sheng,PANG Yan,LI Hao and XIAO Peng-peng.Decomposition Characteristics of Emergent Aquatic Plant Residues from the Lakeshore of Erhai Lake and their Environmental Effects[J].Research of Environmental Sciences,2011,24(12):1364-1369. |
| |
| Authors: | YE Bi-bi CAO De-ju CHU Zhao-sheng PANG Yan LI Hao and XIAO Peng-peng |
| |
| Institution: | YE Bi-bi1,2,CAO De-ju1,CHU Zhao-sheng2,PANG Yan2,LI Hao1,XIAO Peng-peng1 1.College of Resource and Environment Science,Anhui Agricultural University,Hefei 238300,China 2.Research Center for Lake Eco-environment,Chinese Research Academy of Environmental Sciences,Beijing 100012,China |
| |
| Abstract: | The decomposition characteristics of four types of main emergent aquatic plants,Zizania caduciflora,Typha latifolia,Phragnites australis and Scirpus validus,from the lakeshore of Erhai Lake were studied using experimental simulation.The results showed that during the decomposition processes over 21 days,the decomposition rate of S.validus was the largest among these aquatic plants,the next were those of Z.caduciflora and T.latifolia,and the least was that of P.australis.The order of total nitrogen amount re... |
| |
| Keywords: | Erhai Lake emergent aquatic plants decomposition release amount |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《环境科学研究》浏览原始摘要信息 |
| 点击此处可从《环境科学研究》下载免费的PDF全文 |
|
