Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.13533 |
Different fates of deposited NH4+ and NO3- in a temperate forest in northeast China: a N-15 tracer study | |
Liu, Jun1,2; Peng, Bo1,2; Xia, Zongwei1; Sun, Jianfei1,2; Gao, Decai1,2; Dai, Weiwei1; Jiang, Ping1; Bai, Edith1 | |
2017-06-01 | |
发表期刊 | GLOBAL CHANGE BIOLOGY |
ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2017 |
卷号 | 23期号:6 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | Increasing atmospheric reactive nitrogen (N) deposition due to human activities could change N cycling in terrestrial ecosystems. However, the differences between the fates of deposited NH4+ and NO3- are still not fully understood. Here, we investigated the fates of deposited NH4+ and NO3-, respectively, via the application of (NH4NO3)-N-15 and (NH4NO3)-N-15 in a temperate forest ecosystem. Results showed that at 410 days after tracer application, most (NH4+)-N-15 was immobilized in litter layer (50 +/- 2%), while a considerable amount of (NO3-)-N-15 penetrated into 0-5 cm mineral soil (42 +/- 2%), indicating that litter layer and 0-5 cm mineral soil were the major N sinks of NH4+ and NO3-, respectively. Broad-leaved trees assimilated more N-15 under (NH4NO3)-N-15 treatment compared to under (NH4NO3)-N-15 treatment, indicating their preference for NO3--N. At 410 days after tracer application, 16 +/- 4% added N-15 was found in aboveground biomass under (NO3-)-N-15 treatment, which was twice more than that under (NH4+)-N-15 treatment (6 +/- 1%). At the same time, approximately 80% added N-15 was recovered in soil and plants under both treatments, which suggested that this forest had high potential for retention of deposited N. These results provided evidence that there were great differences between the fates of deposited NH4+ and NO3-, which could help us better understand the mechanisms and capability of forest ecosystems as a sink of reactive nitrogen. |
英文关键词 | broad-leaved and Korean pine (Pinus koraiensis) mixed forest nitrogen deposition nitrogen fate nitrogen retention nitrogen saturation |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000400445900026 |
WOS关键词 | N-15-LABELED NITROGEN DEPOSITION ; MICROBIAL IMMOBILIZATION ; SOUTH TRANSECT ; SPRUCE FOREST ; SOIL-NITROGEN ; INORGANIC N ; SCOTS PINE ; NITRATE ; AMMONIUM ; RETENTION |
WOS类目 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/18276 |
专题 | 气候变化 资源环境科学 |
作者单位 | 1.Inst Appl Ecol, CAS Key Lab Forest Ecol & Management, Shenyang 110016, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Liu, Jun,Peng, Bo,Xia, Zongwei,et al. Different fates of deposited NH4+ and NO3- in a temperate forest in northeast China: a N-15 tracer study[J]. GLOBAL CHANGE BIOLOGY,2017,23(6). |
APA | Liu, Jun.,Peng, Bo.,Xia, Zongwei.,Sun, Jianfei.,Gao, Decai.,...&Bai, Edith.(2017).Different fates of deposited NH4+ and NO3- in a temperate forest in northeast China: a N-15 tracer study.GLOBAL CHANGE BIOLOGY,23(6). |
MLA | Liu, Jun,et al."Different fates of deposited NH4+ and NO3- in a temperate forest in northeast China: a N-15 tracer study".GLOBAL CHANGE BIOLOGY 23.6(2017). |
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