Effects of temperature on soil net nitrogen mineralisation in two contrasting forests on the eastern Tibetan Plateau,China
文献类型：期刊论文
| 作者 | Xu, Zhenfeng1; Liu, Qing2; Yin, Huajun2 |
| 刊名 | SOIL RESEARCH
 |
| 出版日期 | 2014 |
| 卷号 | 52期号:6页码:562-567 |
| 关键词 | coniferous forest Eastern Tibetan Plateau net N mineralisation reforestation temperature |
| ISSN号 | 1838-675X |
| DOI | 10.1071/SR13298 |
| 产权排序 | 2 |
| 文献子类 | Article |
| 英文摘要 | Intact soil cores from two adjacent forest ecosystems (natural coniferous forest and dragon spruce plantation) were incubated in the laboratory to examine effects of temperature, reforestation and their interactions on rates of nitrogen (N) mineralisation, nitrification and ammonification in the subalpine forest of the eastern Tibetan Plateau. Two contrasting soils were incubated at five temperatures (-5, 0, 5, 15 and 25 degrees C) for 4 weeks. Rates of N mineralisation and nitrification were insensitive to temperature at lower temperatures (0 degrees C and 5 degrees C) but increased over higher temperatures (15 degrees C and 25 degrees C). Large amounts of ammonium were released for each incubation time in both soils when the incubation temperature was -5 degrees C. Therefore, the rates of mineralisation and ammonification at -5 degrees C were significantly higher than at the other temperatures. Both the accumulations of inorganic N and rates of N transformation were significantly higher in the natural forest than in the plantation. Moreover, temperature sensitivity of net nitrification and N mineralisation were greater in the natural forest than the spruce plantation. Effects of temperature on accumulations of inorganic N and rates of N transformation were dependent on incubation time and forest ecosystem. Our results suggested that -5 degrees C might be a key low temperature for N mineralisation in subalpine forest on the eastern Tibetan Plateau; the effect of projected warming on soil N transformation rate may be less significant in plantation forests than natural forests in this specific region. |
| 学科主题 | Agriculture/agronomy |
| URL标识 | 查看原文 |
| WOS关键词 | STANDARD LABORATORY CONDITIONS ; N MINERALIZATION ; CLIMATE-CHANGE ; RESPONSES ; CARBON ; ECOSYSTEMS ; TRANSFORMATIONS ; NITRIFICATION ; COMMUNITIES ; FRACTIONS |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:000341563200005 |
| 出版者 | CSIRO PUBLISHING |
| 源URL | [http://210.75.237.14/handle/351003/29914]  |
| 专题 | 生物多样性与生态系统服务领域_生态研究 |
| 作者单位 | 1.Sichuan Agr Univ, Inst Ecol & Forestry, Chengdu 611830, Peoples R China; 2.Chinese Acad Sci, Chengdu Inst Biol, Chengdu 610041, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Zhenfeng,Liu, Qing,Yin, Huajun. Effects of temperature on soil net nitrogen mineralisation in two contrasting forests on the eastern Tibetan Plateau,China[J]. SOIL RESEARCH,2014,52(6):562-567. |
| APA | Xu, Zhenfeng,Liu, Qing,&Yin, Huajun.(2014).Effects of temperature on soil net nitrogen mineralisation in two contrasting forests on the eastern Tibetan Plateau,China.SOIL RESEARCH,52(6),562-567. |
| MLA | Xu, Zhenfeng,et al."Effects of temperature on soil net nitrogen mineralisation in two contrasting forests on the eastern Tibetan Plateau,China".SOIL RESEARCH 52.6(2014):562-567. |
入库方式： OAI收割
来源：成都生物研究所
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