Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1088/1748-9326/ab239c |
Global soil acidification impacts on belowground processes | |
Meng, Cheng1,2; Tian, Dashuan1; Zeng, Hui2; Li, Zhaolei1; Yi, Chuixiang3; Niu, Shuli1,4 | |
2019-07-01 | |
发表期刊 | ENVIRONMENTAL RESEARCH LETTERS |
ISSN | 1748-9326 |
出版年 | 2019 |
卷号 | 14期号:7 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
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. |
英文关键词 | acid deposition soil cations meta-analysis soil pH soil respiration microbes |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000476946400001 |
WOS关键词 | SIMULATED ACID-RAIN ; TERRESTRIAL ECOSYSTEMS ; ALUMINUM TOXICITY ; NITROGEN ENRICHMENT ; FOREST ; DEPOSITION ; RESPIRATION ; RESPONSES ; METAANALYSIS ; CARBON |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
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/184548 |
专题 | 气候变化 |
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). |
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). |
MLA | Meng, Cheng,et al."Global soil acidification impacts on belowground processes".ENVIRONMENTAL RESEARCH LETTERS 14.7(2019). |
条目包含的文件 | 条目无相关文件。 |
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