Seasonal changes of nitrate concentrations in baseflow headwaters of coniferous forests in Japan: A significant indicator for N saturation
文献类型：SCI/SSCI论文
| 作者 | Zhang Z. |
| 发表日期 | 2008 |
| 关键词 | Baseflow Coniferous forest Headwater Nitrogen N saturation indicator Watershed nitrogen saturation storm events soil watersheds mineralization temperature ecosystems phosphorus deposition retention |
| 英文摘要 | Understanding the seasonal and regional patterns of nitrogen (N) components in the headwaters of forested watersheds is important for forests management. Here, we investigated the NO(3)-N concentration and its seasonal variations in the baseflow headwaters in Japanese coniferous forests with different N saturation status in five regions (i.e., Nagano, Tokyo, Aichi; Kochi and Mie). We found that the ratios of NO(3)-N to DON were significantly higher in the N-saturated regions including Nagano (14.1 +/- 2.2) and Tokyo (16.5 +/- 4.1), compared with the regions, which didn't experience N saturation including Aichi (1.4 +/- 0.2), Kochi (5.1 +/- 1.8), and Mie (2.2 +/- 0.5). In comparison with the regions without experiencing N saturation, the relatively higher NO(3)-N concentration, as well as its contrastive variation between growing season and dormant season, was also characteristic of the seasonal NO(3)-N concentration in the N-saturated regions. Our findings have indicated that NO(3)-N concentration, its seasonal variations, and the ratio of NO(3)-N to DON, are the better and applicable indicators for evaluating N saturation status in Japanese coniferous forests. (C) 2008 Elsevier B.V. All rights reserved |
| 出处 | Catena |
| 卷 | 76 |
| 期 | 1 |
| 页 | 63-69 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 0341-8162 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/22305]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Zhang Z.. Seasonal changes of nitrate concentrations in baseflow headwaters of coniferous forests in Japan: A significant indicator for N saturation. 2008. |
入库方式： OAI收割
来源：地理科学与资源研究所
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