Nitrogen storage in China's terrestrial ecosystems
文献类型：期刊论文
| 作者 | Xu, Li2; He, Nianpeng1,2 ; Yu, Guirui1,2
|
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2020-03-20 |
| 卷号 | 709页码:11 |
| 关键词 | Nitrogen storage Vegetation Soil Nitrogen cycle China |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2019.136201 |
| 通讯作者 | He, Nianpeng(henp@igsnrr.ac.cn) |
| 英文摘要 | Nitrogen (N) is an essential element for plant growth and ecosystem productivity. Accurate estimation of N storage in terrestrial ecosystems is crucial because it is one of the most important N pools in the earth system; however, the spatial patterns of N storage and the main influencing factors remain unclear due to the limited data available, particularly on the N content in plant organs. Here we systematically estimated the N storage in China for the first time using 44,337 field-measured data. The total N storage was 10.43 Pg N, with 0.29 Pg N in vegetation and 10.14 Pg N in soil (0-100 cm); of these, approximately 62.07% (0.18 Pg N) of the vegetation N was stored in active plant organs (leaf and root). Furthermore, N storage in the forest, grassland, wetland, and cropland ecosystems (excluding vegetation) was 3.74, 3.15, 0.24, and 1.93 Pg N, respectively. The spatial patterns of N density were different in vegetation and soil. Redundancy analysis showed that the main factor influencing the spatial patterns in vegetation was climate, whereas the main factors influencing the spatial patterns in soil were climate and soil nutrient. Our study clarified the N pools of each subsystem (particularly for plant organs) and revealed the main influencing factors. In addition, we compiled N density datasets for different plant organs and soil depths across various climatic regions in China, which could provide parameters for regional N cycle models or serve as a reference for regional N management. (C) 2019 Elsevier B.V. All rights reserved. |
| WOS关键词 | SOIL ORGANIC-CARBON ; GLOBAL PATTERNS ; REACTIVE NITROGEN ; SPATIAL-PATTERNS ; LEAF ; LIMITATION ; ROOT ; PRODUCTIVITY ; RESPIRATION ; TEMPERATURE |
| 资助项目 | National Natural Science Foundation of China[31800368] ; Chinese Academy of Sciences Priority Research Program[XDA19020302] ; National Key Research Project of China[2016YFC0500202] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000512281700121 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China ; Chinese Academy of Sciences Priority Research Program ; National Key Research Project of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/132506]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | He, Nianpeng |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Li,He, Nianpeng,Yu, Guirui. Nitrogen storage in China's terrestrial ecosystems[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2020,709:11. |
| APA | Xu, Li,He, Nianpeng,&Yu, Guirui.(2020).Nitrogen storage in China's terrestrial ecosystems.SCIENCE OF THE TOTAL ENVIRONMENT,709,11. |
| MLA | Xu, Li,et al."Nitrogen storage in China's terrestrial ecosystems".SCIENCE OF THE TOTAL ENVIRONMENT 709(2020):11. |
入库方式： OAI收割
来源：地理科学与资源研究所
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