Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.13372 |
A global synthesis of the rate and temperature sensitivity of soil nitrogen mineralization: latitudinal patterns and mechanisms | |
Liu, Yuan1,2; Wang, Changhui3; He, Nianpeng1; Wen, Xuefa1; Gao, Yang1; Li, Shenggong1; Niu, Shuli1; Butterbach-Bahl, Klaus4; Luo, Yiqi5; Yu, Guirui1 | |
2017 | |
发表期刊 | GLOBAL CHANGE BIOLOGY |
ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2017 |
卷号 | 23期号:1 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; Germany; USA |
英文摘要 | Soil net nitrogen (N) mineralization (N-min) is a pivotal process in the global N cycle regulating the N availability of plant growth. Understanding the spatial patterns of N-min, its temperature sensitivity (Q(10)) and regulatory mechanisms is critical for improving the management of soil nutrients. In this study, we evaluated 379 peer-reviewed scientific papers to explore how N-min and the Q(10) of N-min varied among different ecosystems and regions at the global scale. The results showed that N-min varied significantly among different ecosystems with a global average of 2.41 mg N soil kg(-1) day(-1). Furthermore, N-min significantly decreased with increasing latitude and altitude. The Q(10) varied significantly among different ecosystems with a global average of 2.21, ranging from the highest found in forest soils (2.43) and the lowest found for grassland soils (1.67) and significantly increased with increasing latitude. Path analyses indicated that N-min was primarily affected by the content of soil organic carbon (C), soil C:N ratio, and clay content, where Q(10) was primarily influenced by the soil C:N ratio and soil pH. Furthermore, the activation energy (E-a) of soil N mineralization was significantly and negative correlated with the substrate quality index among all ecosystems, indicating the applicability of the carbon quality temperature hypothesis to soil N mineralization at a global scale. These findings provided empirical evidence supporting that soil N availability, under global warming scenarios, is expected to increase stronger in colder regions as compared with that low-latitude regions due to the higher Q(10). This may alleviate the restriction of N supply for increased primary productivity at higher latitudes. |
英文关键词 | activation energy global pattern mechanism mineralization nitrogen availability substrate quality temperature sensitivity |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000390218300038 |
WOS关键词 | ORGANIC-MATTER DECOMPOSITION ; MICROBIAL BIOMASS CARBON ; N-MINERALIZATION ; TERRESTRIAL ECOSYSTEMS ; NORTHERN CHINA ; RESPIRATION ; PHOSPHORUS ; LIMITATION ; WATER ; DEPENDENCE |
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/17790 |
专题 | 气候变化 资源环境科学 |
作者单位 | 1.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China; 4.Karlsruhe Inst Technol, Inst Meteorol & Climate Res, Atmospher Environm Res, D-82467 Garmisch Partenkirchen, Germany; 5.Univ Oklahoma, Dept Microbiol & Plant Biol, Norman, OK 73019 USA |
推荐引用方式 GB/T 7714 | Liu, Yuan,Wang, Changhui,He, Nianpeng,et al. A global synthesis of the rate and temperature sensitivity of soil nitrogen mineralization: latitudinal patterns and mechanisms[J]. GLOBAL CHANGE BIOLOGY,2017,23(1). |
APA | Liu, Yuan.,Wang, Changhui.,He, Nianpeng.,Wen, Xuefa.,Gao, Yang.,...&Yu, Guirui.(2017).A global synthesis of the rate and temperature sensitivity of soil nitrogen mineralization: latitudinal patterns and mechanisms.GLOBAL CHANGE BIOLOGY,23(1). |
MLA | Liu, Yuan,et al."A global synthesis of the rate and temperature sensitivity of soil nitrogen mineralization: latitudinal patterns and mechanisms".GLOBAL CHANGE BIOLOGY 23.1(2017). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论