A global synthesis of the rate and temperature sensitivity of soil nitrogen mineralization: latitudinal patterns and mechanisms

doi:10.5194/bg-14-2155-2017

	A global synthesis of the rate and temperature sensitivity of soil nitrogen mineralization: latitudinal patterns and mechanisms
	Liu, Yuan 1; Wang, Changhui 2; He, Nianpeng ; Wen, Xuefa ; Gao, Yang ; Li, Shenggong ; Niu, Shuli ; Butterbach-Bahl, Klaus ; Luo, Yiqi 4; Yu, Guirui
	2017
发表期刊	GLOBAL CHANGE BIOLOGY
ISSN	1354-1013
卷号	23 期号:1 页码:455-464
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.
关键词	activation energy global pattern mechanism mineralization nitrogen availability substrate quality temperature sensitivity
学科领域	Environmental Sciences & Ecology ; Geology
DOI	10.5194/bg-14-2155-2017
收录类别	SCI
语种	英语
WOS关键词	ORGANIC-MATTER DECOMPOSITION ; MICROBIAL BIOMASS CARBON ; N-MINERALIZATION ; RESPIRATION ; PHOSPHORUS ; LIMITATION ; WATER ; DEPENDENCE ; VEGETATION ; GRADIENT
WOS记录号	WOS:000400180500002
出版者	WILEY
文献子类	Article
出版地	HOBOKEN
EISSN	1365-2486
资助机构	Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41571130043, 31270519, 31470506, 31290221] ; Program for Kezhen Distinguished Talents in Institute of Geographic Sciences and Natural Resources Research, CAS [2013RC102] ; Youth Innovation Promotion Association CAS
作者邮箱	henp@igsnrr.ac.cn ; yugr@igsnrr.ac.cn
作品OA属性	gold, Green Submitted
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/22167
专题	植被与环境变化国家重点实验室
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):455-464.
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),455-464.
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):455-464.

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Wang-2017-Alteration（7513KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览请求全文