Nitrogen deposition and decreased precipitation does not change total nitrogen uptake in a temperate forest
文献类型：期刊论文
| 作者 | Zhou, Mingxin1; Yan, Guoyong1,2; Xing, Yajuan2,3; Chen, Fei1; Zhang, Xin2; Wang, Jianyu1; Zhang, Junhui4; Dai, Guanhua4; Zheng, Xingbo4; Sun, Wenjing1 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2019-02-15 |
| 卷号 | 651页码:32-41 |
| 关键词 | Nitrogen uptake Decreased precipitation Nitrogen addition Root plasticity Temperate forest |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2018.09.166 |
| 英文摘要 | Decreased precipitation and increased anthropogenical by derived nitrogen (N) are important climate change factors that alter the availability of soil water and N which are crucial to root function and morphological traits. However, these factors are seldom explored in forests. To clarify how altered precipitation and N addition affect the uptake of organic and inorganic N by fine roots, a field hydroponic experiment using brief N-15 exposures was conducted in a temperate forest in northern China. The root traits related to nutrient foraging (root morphology and mycorrhizal colonization) were measured simultaneously. Our results showed that all three tree species preferred ammonium (NH4+) over glycine and nitrate (NO3-), and NH4+ contributed 73% to the total N uptake from the soil. Uptake of glycine was higher than that of NO3-. Decreased precipitation, N addition, and their interaction increased NH4+ uptake rate compared with the control. Decreased precipitation decreased the glycine and NO3- uptake rate. Moreover, N addition, decreased precipitation and their interaction changed root morphological traits and significantly decreased mycorrhizal colonization. Although our treatments resulted in changes to the root traits and the forms of N uptake by plants, the total amount of N uptake did not change among all treatments. We conclude that although fine root traits of dominant tree species in temperate forests have high plasticity in response to climate change, nutrient balance in plants causes the total amount of N uptake to remain unchanged. (C) 2018 Elsevier B.V. All rights reserved. |
| 资助项目 | National Key Research and Development Program of China[2016YFA0600800] ; National Natural Science Foundation of China[41773075] ; National Natural Science Foundation of China[41575137] ; National Natural Science Foundation of China[31370494] ; National Natural Science Foundation of China[31170421] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000447915400004 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://210.72.129.5/handle/321005/123242]  |
| 专题 | 中国科学院沈阳应用生态研究所 |
| 通讯作者 | Wang, Qinggui; Liu, Tong |
| 作者单位 | 1.Northeast Forestry Univ, Sch Forestry, 26 Hexing Rd, Harbin 150040, Heilongjiang, Peoples R China 2.Heilongjiang Univ, Coll Agr Resource & Environm, 74 Xuefu Rd, Harbin 150080, Heilongjiang, Peoples R China 3.Inst Forestry Sci Heilongjiang Prov, 134 Raping Rd, Harbin 150081, Heilongjiang, Peoples R China 4.Chinese Acad Sci, Inst Appl Ecol, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Mingxin,Yan, Guoyong,Xing, Yajuan,et al. Nitrogen deposition and decreased precipitation does not change total nitrogen uptake in a temperate forest[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019,651:32-41. |
| APA | Zhou, Mingxin.,Yan, Guoyong.,Xing, Yajuan.,Chen, Fei.,Zhang, Xin.,...&Liu, Tong.(2019).Nitrogen deposition and decreased precipitation does not change total nitrogen uptake in a temperate forest.SCIENCE OF THE TOTAL ENVIRONMENT,651,32-41. |
| MLA | Zhou, Mingxin,et al."Nitrogen deposition and decreased precipitation does not change total nitrogen uptake in a temperate forest".SCIENCE OF THE TOTAL ENVIRONMENT 651(2019):32-41. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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