Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.14705 |
Global pattern and controls of biological nitrogen fixation under nutrient enrichment: A meta-analysis | |
Zheng, Mianhai1,2,3,4; Zhou, Zhenghu5; Luo, Yiqi6; Zhao, Ping1,2,3; Mo, Jiangming1,2,3 | |
2019-09-01 | |
发表期刊 | GLOBAL CHANGE BIOLOGY |
ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2019 |
卷号 | 25期号:9页码:3018-3030 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | Biological nitrogen (N) fixation (BNF), an important source of N in terrestrial ecosystems, plays a critical role in terrestrial nutrient cycling and net primary productivity. Currently, large uncertainty exists regarding how nutrient availability regulates terrestrial BNF and the drivers responsible for this process. We conducted a global meta-analysis of terrestrial BNF in response to N, phosphorus (P), and micronutrient (Micro) addition across different biomes (i.e, tropical/subtropical forest, savanna, temperate forest, grassland, boreal forest, and tundra) and explored whether the BNF responses were affected by fertilization regimes (nutrient-addition rates, duration, and total load) and environmental factors (mean annual temperature [MAT], mean annual precipitation [MAP], and N deposition). The results showed that N addition inhibited terrestrial BNF (by 19.0% (95% confidence interval [CI]: 17.7%-20.3%); hereafter), Micro addition stimulated terrestrial BNF (30.4% [25.7%-35.3%]), and P addition had an inconsistent effect on terrestrial BNF, i.e., inhibiting free-living N fixation (7.5% [4.4%-10.6%]) and stimulating symbiotic N fixation (85.5% [25.8%-158.7%]). Furthermore, the response ratios (i.e., effect sizes) of BNF to nutrient addition were smaller in low-latitude (<30 degrees) biomes (8.5%-36.9%) than in mid-/high-latitude (>= 30 degrees) biomes (32.9%-61.3%), and the sensitivity (defined as the absolute value of response ratios) of BNF to nutrients in mid-/high-latitude biomes decreased with decreasing latitude (p <= 0.009; linear/logarithmic regression models). Fertilization regimes did not affect this phenomenon (p > 0.05), but environmental factors did affect it (p < 0.001) because MAT, MAP, and N deposition accounted for 5%-14%, 10%-32%, and 7%-18% of the variance in the BNF response ratios in cold (MAT < 15 degrees C), low-rainfall (MAP < 2,500 mm), and low-N-deposition (<7 kg ha(-1) year(-1)) biomes, respectively. Overall, our meta-analysis depicts a global pattern of nutrient impacts on terrestrial BNF and indicates that certain types of global change (i.e., warming, elevated precipitation and N deposition) may reduce the sensitivity of BNF in response to nutrient enrichment in mid-/high-latitude biomes. |
英文关键词 | biological nitrogen fixation global change micronutrient nitrogen phosphorus terrestrial ecosystems |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000478644100014 |
WOS关键词 | SOIL MICROBIAL COMMUNITIES ; N-2 FIXATION ; N DEPOSITION ; PHOSPHORUS LIMITATION ; MOLYBDENUM LIMITATION ; LITTER DECOMPOSITION ; DINITROGEN FIXATION ; SEASONAL-VARIATION ; FERTILE GRASSLAND ; CLIMATE-CHANGE |
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/186695 |
专题 | 气候变化 资源环境科学 |
作者单位 | 1.Chinese Acad Sci, Key Lab Vegetat Restorat & Management Degraded Ec, South China Bot Garden, Guangzhou 510650, Guangdong, Peoples R China; 2.Chinese Acad Sci, Core Bot Gardens, Ctr Plant Ecol, Guangzhou, Guangdong, Peoples R China; 3.Chinese Acad Sci, Guangdong Prov Key Lab Appl Bot, South China Bot Garden, Guangzhou, Guangdong, Peoples R China; 4.Univ Chinese Acad Sci, Beijing, Peoples R China; 5.Northeast Forestry Univ, Ctr Ecol Res, Harbin, Heilongjiang, Peoples R China; 6.No Arizona Univ, Ctr Ecosyst Sci & Soc, Flagstaff, AZ 86011 USA |
推荐引用方式 GB/T 7714 | Zheng, Mianhai,Zhou, Zhenghu,Luo, Yiqi,et al. Global pattern and controls of biological nitrogen fixation under nutrient enrichment: A meta-analysis[J]. GLOBAL CHANGE BIOLOGY,2019,25(9):3018-3030. |
APA | Zheng, Mianhai,Zhou, Zhenghu,Luo, Yiqi,Zhao, Ping,&Mo, Jiangming.(2019).Global pattern and controls of biological nitrogen fixation under nutrient enrichment: A meta-analysis.GLOBAL CHANGE BIOLOGY,25(9),3018-3030. |
MLA | Zheng, Mianhai,et al."Global pattern and controls of biological nitrogen fixation under nutrient enrichment: A meta-analysis".GLOBAL CHANGE BIOLOGY 25.9(2019):3018-3030. |
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