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| 有机质腐解对穗花狐尾藻生长及磷积累的影响 | |
| 引用本文： | 易文利,王圣瑞,杨苏文,金相灿,王国栋.有机质腐解对穗花狐尾藻生长及磷积累的影响[J].生态环境,2011,20(5):940-945. |
| 作者姓名： | 易文利 王圣瑞 杨苏文 金相灿 王国栋 |
| 作者单位： | 1. 宝鸡文理学院灾害监测与机理模拟陕西省重点实验室,陕西宝鸡721013;中国环境科学研究院湖泊生态环境创新基地//国家环境保护湖泊污染控制重点实验室,北京100012 2. 中国环境科学研究院湖泊生态环境创新基地//国家环境保护湖泊污染控制重点实验室,北京,100012 3. 西北农林科技大学理学院,陕西杨凌,712100 |
| 基金项目： | 国家科学自然基金项目(40873079和40703017); 陕西省教育厅项目(2010JS07109JK330); 宝鸡文理学院重点项目(ZK0845); 陕西省重点学科自然地理学联合资助 |
| 摘 要： | 在室内以原沉积物（处理1）和分别添加0.5%与1%有机质（植物残体）（处理2和处理3）的沉积物作为底质培养沉水植物,研究了植物残体的腐解对穗花狐尾藻生长及各器官磷积累的影响。结果表明：在试验的早期阶段,植物残体的腐解对狐尾藻的生长及磷积累有一定的抑制,其干质量积累量与磷积累量均表现为处理1〉处理2〉处理3,与处理1相比,处理2和处理3植株干质量积累量分别降低了16.9%和24.35%,磷积累量降低了24.38%和44.18%;但在培养的中后期,则表现为处理2〉处理3〉处理1,与处理1相比,处理2和处理3的穗花狐尾藻干质量和磷积累量分别增加了22.45%和7.48%、75.53%和17.21%。整个培养实验结果表明低含量植物残体的残留,促进了植株生长及磷积累,但当植物残体残留过高时,沉水植物的生长及磷积累受到抑制。3个处理不同器官干质量和磷分配比均表现为叶〉茎〉根,叶是穗花狐尾藻主要的磷累积器官。 |
| 关 键 词： | 植物残体 穗花狐尾藻 生长 磷积累 |
Effects of organic matter decomposition on the growth and phosphorus accumulation of Myriophyllum spicatum |
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| YI Wenli,WANG Shengrui,Yang Suwen,JIN Xiang-can,WANG Guo-dong.Effects of organic matter decomposition on the growth and phosphorus accumulation of Myriophyllum spicatum[J].Ecology and Environmnet,2011,20(5):940-945. | |
| Authors: | YI Wenli WANG Shengrui Yang Suwen JIN Xiang-can WANG Guo-dong |
| Institution: | YI Wenli1,2,WANG Shengrui2,Yang Suwen2,JIN Xiang-can2,WANG Guo-dong3 1.Key Lab of Disaster Monitoring and Mechanism Simulating in Shaanxi Province,Baoji university of Arts and Sciences,Baoji 721013,China,2.State Environment Protection Key Laboratory for Lake Pollution Control,Research Center of Lake Eco-Environment,Chinese Research Academy of Environmental Science,Beijing 100012,3.College of Science,Northwest A& F University,Yangling 712100 |
| Abstract: | With the sediment applied with 0%,0.5%,and 1% organic matter(plant residues)(treatment1,treatment 2 and treatment 3) as the substrate,a simulating experiment was conducted to study the impacts on Myriophyllum spicatum growth and phosphorus accumulation in different organs during the decomposition of plant residues.The results showed that plant residues decomposing inhibited the growth and phosphorus accumulation of submerged plants at early stage,the plant dry biomass and phosphorus accumulation were in the... |
| Keywords: | organic matter Myriophyllum spicatum growth phosphorus accumulation |
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