Global soil acidification impacts on belowground processes
文献类型：期刊论文
| 作者 | Meng, Cheng1,2; Tian, Dashuan1; Zeng, Hui2; Li, Zhaolei1; Yi, Chuixiang3; Niu, Shuli1,4 |
| 刊名 | ENVIRONMENTAL RESEARCH LETTERS
 |
| 出版日期 | 2019-07-01 |
| 卷号 | 14期号:7页码:10 |
| 关键词 | acid deposition soil cations meta-analysis soil pH soil respiration microbes |
| ISSN号 | 1748-9326 |
| DOI | 10.1088/1748-9326/ab239c |
| 通讯作者 | Niu, Shuli(sniu@igsnrr.ac.cn) |
| 英文摘要 | With continuous nitrogen (N) enrichment and sulfur (S) deposition, soil acidification has accelerated and become a global environmental issue. However, a full understanding of the general pattern of ecosystem belowground processes in response to soil acidification due to the impacting factors remains elusive. We conducted a meta-analysis of soil acidification impacts on belowground functions using 304 observations from 49 independent studies, mainly including soil cations, soil nutrient, respiration, root and microbial biomass. Our results show that acid addition significantly reduced soil pHby 0.24 on average, with less pH decrease in forest than non-forest ecosystems. The response ratio of soilpH was positively correlated with site precipitation and temperature, but negatively with initial soil pH. Soil base cations (Ca2+, Mg2+, Na+) decreased while non-base cations (Al3+, Fe3+) increased with soil acidification. Soil respiration, fine root biomass, microbial biomass carbon and nitrogen were significantly reduced by 14.7%, 19.1%, 9.6% and 12.1%, respectively, under acid addition. These indicate that soil carbon processes are sensitive to soil acidification. Overall, our meta-analysis suggests a strong negative impact of soil acidification on belowground functions, with the potential to suppress soil carbon emission. It also arouses our attention to the toxic effects of soil ions on terrestrial ecosystems. |
| WOS关键词 | SIMULATED ACID-RAIN ; TERRESTRIAL ECOSYSTEMS ; ALUMINUM TOXICITY ; NITROGEN ENRICHMENT ; FOREST ; DEPOSITION ; RESPIRATION ; RESPONSES ; METAANALYSIS ; CARBON |
| 资助项目 | National Natural Science Foundation of China[31625006] ; National Key R&D Program of China[2017YFA0604802] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA23080302] ; International Collaboration Program of Chinese Academy of Sciences[131A11KYSB20180010] |
| WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000476946400001 |
| 出版者 | IOP PUBLISHING LTD |
| 资助机构 | National Natural Science Foundation of China ; National Key R&D Program of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; International Collaboration Program of Chinese Academy of Sciences |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/58288]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Niu, Shuli |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 2.Peking Univ, Shenzhen Grad Sch, Shenzhen 518055, Peoples R China 3.CUNY Queens Coll, Sch Earth & Environm Sci, Flushing, NY 11367 USA 4.Univ Chinese Acad Sci, Dept Resources & Environm, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Meng, Cheng,Tian, Dashuan,Zeng, Hui,et al. Global soil acidification impacts on belowground processes[J]. ENVIRONMENTAL RESEARCH LETTERS,2019,14(7):10. |
| APA | Meng, Cheng,Tian, Dashuan,Zeng, Hui,Li, Zhaolei,Yi, Chuixiang,&Niu, Shuli.(2019).Global soil acidification impacts on belowground processes.ENVIRONMENTAL RESEARCH LETTERS,14(7),10. |
| MLA | Meng, Cheng,et al."Global soil acidification impacts on belowground processes".ENVIRONMENTAL RESEARCH LETTERS 14.7(2019):10. |
入库方式： OAI收割
来源：地理科学与资源研究所
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