南京林业大学学报（自然科学版）2011，Vol.35Issue(6)：147-150,4.DOI:10.3969/j.issn.1000-2006.2011.06.030
温度对太湖湖滨带不同水分梯度土壤氮矿化的影响
Responses of soil nitrogen mineralization to temperature along soil moisture gradients in the riparian zone of Taihu Lake
摘要
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 Q10 value of soil nitrogen mineralization fluctuated between 1.16 and 1.55. There was no obvious regularity of the Q10 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.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Key words
moisture gradient/ riparian zones/ temperature/ net nitrogen mineralization/ nitrogen mineralization rate/ Q10分类
农业科技引用本文复制引用
赵琦齐,沈玉娟,李平,冯育青,余杏生,陆华兵,阮宏华..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(6):147-150,4.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) （）
