The response of grassland productivity to atmospheric nitrogen deposition in northern China
文献类型：期刊论文
| 作者 | Wang, Yujue3; Xiao, Chunwang3; Liu, Congcong3; He, Nianpeng1,2 |
| 刊名 | AGRICULTURE ECOSYSTEMS & ENVIRONMENT
 |
| 出版日期 | 2024 |
| 卷号 | 359页码:9 |
| ISSN号 | 0167-8809 |
| 关键词 | Deposition Productivity Carbon cycle Grasslands |
| DOI | 10.1016/j.agee.2023.108764 |
| 通讯作者 | Xiao, Chunwang(cwxiao@muc.edu.cn) ; He, Nianpeng(henp@igsnrr.ac.cn) |
| 英文摘要 | Increasing atmospheric nitrogen (N) deposition is expected to increase grassland productivity on a regional or global scale. However, it is unclear whether there are regional differences. Exploring regional differences and their underlying mechanisms may help examine the impact of N deposition on terrestrial ecosystems and improve the accuracy of models. Based on the "gray box" conceptual model and a linear model between N deposition and aboveground net primary productivity (ANPP), we proposed a new intrinsic parameter, "RN-int", defined as the increase of ANPP induced by per unit low-level N addition, as a simulation of N deposition. Based on the data of 86 N addition experiments in the northern grasslands of China, RN-int showed no regional differences, and the mean value was 5.23 +/- 0.59 g C g N (-1). RN-int was relatively stable mainly as an intrinsic parameter, resulting from the stoichiometric homeostasis of the C:N requirement for plant growth rather than environmental factors. Combined with the N deposition dataset, the increase of ANPP induced by N deposition (ANPP(N)) in these grasslands from 1996 to 2020 was 8.37 +/- 0.51 Tg C yr(-1). The ANPP(N) was significantly different among grassland types (p < 0.05), and the order was grassland, desert, and meadow (4.68 +/- 0.24, 2.53 +/- 0.22, and 1.15 +/- 0.06 Tg C yr(-1), respectively). The spatial pattern of ANPP(N) was influenced by that of the amount of N deposition. Our findings provide new insights into predicting the effect of N deposition on grassland productivity and help better parameterize these ecological models on a regional scale. |
| WOS关键词 | NET PRIMARY PRODUCTIVITY ; STOICHIOMETRIC HOMEOSTASIS ; CARBON ; ECOSYSTEMS ; LIMITATION ; FOREST ; ALLOCATION ; CLIMATE ; WATER |
| 资助项目 | National Key Research and Development Program of China[2022YFF080210102] ; National Natural Science Foundation of China[31988102] ; National Natural Science Foundation of China[32201311] ; CAS Project for Young Scientists in Basic Research[YSBR-037] |
| WOS研究方向 | Agriculture ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:001095724700001 |
| 资助机构 | National Key Research and Development Program of China ; National Natural Science Foundation of China ; CAS Project for Young Scientists in Basic Research |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/199644]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Xiao, Chunwang; He, Nianpeng |
| 作者单位 | 1.Northeast Forestry Univ, Ctr Ecol Res, Harbin 150040, Peoples R China 2.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 3.Minzu Univ China, Coll Life & Environm Sci, Beijing 100081, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Yujue,Xiao, Chunwang,Liu, Congcong,et al. The response of grassland productivity to atmospheric nitrogen deposition in northern China[J]. AGRICULTURE ECOSYSTEMS & ENVIRONMENT,2024,359:9. |
| APA | Wang, Yujue,Xiao, Chunwang,Liu, Congcong,&He, Nianpeng.(2024).The response of grassland productivity to atmospheric nitrogen deposition in northern China.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,359,9. |
| MLA | Wang, Yujue,et al."The response of grassland productivity to atmospheric nitrogen deposition in northern China".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 359(2024):9. |
入库方式： OAI收割
来源：地理科学与资源研究所
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