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| 秦淮河流域句容水库农业流域水体沉积物的反硝化作用 | |
| 引用本文： | 李飞跃,杨绒,遆超普,马爱军,颜晓元.秦淮河流域句容水库农业流域水体沉积物的反硝化作用[J].环境科学学报,2009,29(4):854-860. |
| 作者姓名： | 李飞跃 杨绒 遆超普 马爱军 颜晓元 |
| 作者单位： | 1. 南京农业大学资源与环境科学学院,南京,210095;中国科学院南京土壤研究所,土壤与农业可持续发展国家重点实验室,南京,210008 2. 中国科学院南京土壤研究所,土壤与农业可持续发展国家重点实验室,南京,210008 3. 江苏农林职业技术学院,句客,212400 |
| 摘 要： | 2007年5、8、11月和2008年2月,在秦淮河流域句容水库农业流域的河流和水库中,采用自行设计制作的无扰动采样器采集了沉积物柱样,使用乙炔抑制法进行培养试验,并测定了沉积物上覆水的温度(T)、铵态氮(NH4+-N)、硝态氮(NO-3-N)和总溶解性氮(TDN)的浓度,以及沉积物有机质(OM)和全氮(TN)含量,研究了沉积物反硝化潜势的季节变化及其影响因素.结果显示,水体沉积物反硝化潜势存在显著的季节差异,河流沉积物的反硝化潜势范围在8.85～64.04pμg·m-2·h-1之间、水库沉积物的反硝化潜势范围在5.01～28.18μg·m-2·h-1之间.沉积物反硝化潜势的季节变化与上覆水的温度、NH4+-N、NO-3-N和TDN的浓度,及沉积物的OM和TN含量的季节变化有关. |
| 关 键 词： | 河流 水库 沉积物 反硝化潜势 农业流域 |
| 收稿时间： | 2008/6/18 0:00:00 |
| 修稿时间： | 2008/10/7 0:00:00 |
Denitrification of river and reservoir sediments in the Jurong reservoir agricultural watershed,Qinhuai River basin |
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| LI Feiyue,YANG Rong,TI Chaopu,MA Aijun and YAN Xiaoyuan.Denitrification of river and reservoir sediments in the Jurong reservoir agricultural watershed,Qinhuai River basin[J].Acta Scientiae Circumstantiae,2009,29(4):854-860. | |
| Authors: | LI Feiyue YANG Rong TI Chaopu MA Aijun and YAN Xiaoyuan |
| Affiliation: | LI Feiyue1,2,YANG Rong2,TI Chaopu1,MA Aijun3,YAN Xiaoyuan2,1.The College of Resources , Environment Sciences,Nanjing Agricultural University,Nanjing 210095 2.State Key Laboratory of Soil , Sustainable Agriculture,Institute of Soil Science,Chinese Academy of Sciences,Nanjing 210008 3.Jiangsu College of Agricultural , Forestry,Jurong 212400 |
| Abstract: | Seasonal variation in denitrification potential of sediments of a river and a reservoir in the Jurong reservoir agricultural watershed,Qinhuai River basin,were studied from May 2007 to February 2008.Sediment cores were sampled from 6 sites of the river and 12 sites of the reservoir using a custom-made core sampler.The denitrification potentials of the sediment cores were measured by acetylene inhibition.The results showed that the denitrification potential of the sediments in the watershed was low,with a se... |
| Keywords: | river reservoir sediment denitrification potential agricultural watershed |
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