| 冬季苦草分解速率及营养盐释放规律研究 |
| Study on Decomposition Rate and Nutrition Release of Submerged Macrophytes (Vallisneria spiralis) in Winter |
| 投稿时间：2010-11-15 修订日期：2011-01-24 |
| DOI： |
| 中文关键词:苦草 分解速率 干重剩余率 氮磷剩余率 |
| 英文关键词:Vallisneria spiralis decomposition rate dry weight remaining nitrogen and phosphorus remaining |
| 基金项目:现代农业产业技术体系建设专项资金（ＮＹＣＹＴＸ－49 |
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| 中文摘要: |
| 采用分解网袋法研究了冬季苦草腐败分解速率及其氮、磷损失规律。结果表明:苦草腐败释放的磷大部分被底泥吸附,少量进入水体;释放到水体中的氨氮(NH4+-N)、亚硝态氮(NO2--N)和硝态氮(NO3--N)数量也较少;底泥减缓了苦草干重损失速度,而加快了TN和TP损失速率;苦草分解过程中磷的释放速率比氮快;苦草腐败分解具有阶段性,前36d分解迅速,以后分解速率显著下降。 |
| 英文摘要: |
| This paper studied on the rate of decomposition of tape grass (vallisneria spiralis) as well as the law of the release of nitrogen and phosphorus in the decomposed tape grass in winter using a litter-bag method. The results showed the majority of phosphorus released from the decomposed tape grass was absorbed by the sediment，while the minority of phosphorus from tape grass was released into water. The amount of ammonia nitrogen as well as nitrite nitrogen and nitrate nitrogen released into water accounted for the minority of the total released amount. The existence of sediment decreased the rate of the loss of dry weight，while increased the rate of total nitrogen and total phosphorus in tape grass. The releasing rate of phosphorus from tape grass was much higher than that of nitrogen.The decomposition of tape grass was phase-dependent. The higher rate of decomposition occurred during the first 36-day period. Thereafter, the rate of decomposition decreased significantly. |
| 陈见,谢从新,何绪刚,胡 雄,李 佩,陆诗敏.2011.冬季苦草分解速率及营养盐释放规律研究[J].水生态学杂志,32(2):57-62. |
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