[1]赵琦齐,沈玉娟,李平,等.温度对太湖湖滨带不同水分梯度土壤氮矿化的影响[J].南京林业大学学报(自然科学版),2011,35(06):147-150.[doi:10.3969/j.jssn.1000-2006.2011.06.030]
 ZHAO Qiqi,SHEN Yujuan,LI Ping,et al.Responses of soil nitrogen mineralization to temperature along soil moisture gradients in the riparian zone of Taihu Lake[J].Journal of Nanjing Forestry University(Natural Science Edition),2011,35(06):147-150.[doi:10.3969/j.jssn.1000-2006.2011.06.030]
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温度对太湖湖滨带不同水分梯度土壤氮矿化的影响
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《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

卷:
35
期数:
2011年06期
页码:
147-150
栏目:
研究简报
出版日期:
2011-11-28

文章信息/Info

Title:
Responses of soil nitrogen mineralization to temperature along soil moisture gradients in the riparian zone of Taihu Lake
作者:
赵琦齐1沈玉娟1李平1冯育青12余杏生2陆华兵2阮宏华1*
1.南京林业大学森林资源与环境学院,江苏省林业生态工程重点实验室,江苏南京210037;2.苏州市林业站,江苏苏州215128
Author(s):
ZHAO Qiqi1 SHEN Yujuan1LI Ping1 FENG Yuqing12 YU Xingsheng2 LU Huabing2RUAN Honghua1*
1. Jiangsu Key Laboratory of Forest Ecological Engineering, College of Forest Resources and Environment, Nanjing Forestry University, Nanjing 210037, China; 2. Suzhou City Forestry Division, Suzhou 215128, China
关键词:
水分梯度湖滨带温度净氮矿化量氮矿化速率土壤氮矿化速率增加倍数
Keywords:
moisture gradient riparian zones temperature net nitrogen mineralization nitrogen mineralization rate Q10
分类号:
S142
DOI:
10.3969/j.jssn.1000-2006.2011.06.030
文献标志码:
A
摘要:
选择苏州渔阳山保存较为良好、典型的太湖湖滨带湿地作为试验地,并根据距离水体的远近,在湖滨带从近水体到高岗地分别设置3个实验区,每个实验区设置3个重复的取样点,将土样在实验室条件下,置于5、15、25和35 ℃人工气候箱中培养30 d,以测定土壤净氮矿化对温度的敏感性。结果表明:无论距离水岸带远近,湿地土壤的矿质氮含量、净氮硝化速率、净氮矿化速率总体趋势均表现为随温度的升高而增加;在相同温度下,距水体不同距离土壤的矿质氮含量、净氮硝化速率、净氮矿化速率变化总体趋势从小到大均表现为:近、中、远。土壤氮矿化速率变动范围为1.16~1.55,距离水体远近不同土壤的氮矿化速率增加倍数(Q10)没有明显的规律性。试验表明温度升高对湖滨湿地不同含水量土壤的氮矿化产生着不同的影响。
Abstract:
The soil net mineralized nitrogen amount and nitrogen mineralization rates along a soil moisture gradient in a riparian area in Taihu Lake were examined using random block experimental design and incubation method. The soil samples were put in PVC tube and incubated at 5, 15, 25, and 35 ℃,respectively for 30 days. The results showed that the soil mineralized nitrogen amount, net nitrogen nitrification rate and mineralization rates increased significantly with increasing temperature. At the same temperature, the soil mineralized nitrogen amount, net nitrogen nitrification rate and mineralization rates increased with distance from the water body. The Q10 value of soil nitrogen mineralization fluctuated between 1.16 and 1.55. There was no obvious regularity of the Q10 value of soil N mineralization with distance from the water body. The experiments showed that soil mineralization nitrogen in the riparian zone would be greatly influenced by soil temperature change.

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备注/Memo

备注/Memo:
收稿日期:2010-10-26修回日期:2011-04-08基金项目:国家林业局林业公益性行业科研专项项目(200804006;200704005/wb02)作者简介:赵琦齐(1987—),硕士生。*阮宏华(通信作者),教授。Email:hruan1690@yahoo.com。
更新日期/Last Update: 2011-11-28