Variation of soil microbial carbon use efficiency (CUE) and its Influence mechanism in the context of global environmental change: a review

Soil microbial carbon utilization efficiency (CUE) is the efficiency with which microorganisms convert absorbed carbon (C) into their own biomass C, also referred to as microorganism growth efficiency. Soil microbial CUE is a critical physiological and ecological parameter in the ecosystem’s C cycle, influencing the processes of C retention, turnover, soil mineralization, and greenhouse gas emission. Understanding the variation of soil microbial CUE and its influence mechanism in the context of global environmental change is critical for a better understanding of the ecosystem’s C cycle process and its response to global changes. In this review, the definition of CUE and its measurement methods are reviewed, and the research progress of soil microbial CUE variation and influencing factors is primarily reviewed and analyzed. Soil microbial CUE is usually expressed as the ratio of microbial growth and absorption, which is divided into methods based on the microbial growth rate, microbial biomass, substrate absorption rate, and substrate concentration change, and varies from 0.2 to 0.8. Thermodynamics, ecological environmental factors, substrate nutrient quality and availability, stoichiometric balance, and microbial community composition all influence this variation. In the future, soil microbial CUE research should focus on quantitative analysis of trace metabolic components, analysis of the regulation mechanism of biological-environmental interactions, and optimization of the carbon cycle model of microorganisms’ dynamic physiological response process.

Download Full-text

Plant diversity drives soil microbial biomass carbon in grasslands irrespective of global environmental change factors

Global Change Biology ◽

10.1111/gcb.13011 ◽

2015 ◽

Vol 21 (11) ◽

pp. 4076-4085 ◽

Cited By ~ 78

Author(s):

Madhav Prakash Thakur ◽

Alexandru Milcu ◽

Pete Manning ◽

Pascal A. Niklaus ◽

Christiane Roscher ◽

...

Keyword(s):

Microbial Biomass ◽

Environmental Change ◽

Plant Diversity ◽

Soil Microbial Biomass ◽

Microbial Biomass Carbon ◽

Global Environmental Change ◽

Biomass Carbon ◽

Soil Microbial ◽

Change Factors ◽

Global Environmental

Download Full-text

Thoughts on the Development of Physical Geography in the New Era

Journal of Geographical Research ◽

10.30564/jgr.v1i1.181 ◽

2018 ◽

Vol 1 (1) ◽

Author(s):

Zhanjun Li

Keyword(s):

Climate Change ◽

Environmental Change ◽

Global Environmental Change ◽

Physical Geography ◽

Research Progress ◽

Coupling Mechanism ◽

Climate Change Research ◽

New Era ◽

Human Needs ◽

Global Environmental

Physical geography is the basic discipline of geography and the cornerstone of comprehensive geography research. Based on the main research progress of physical geography, This paper considered the development direction of natural geography in the new era. Driven by global environmental change, physical geography and its sub-disciplines have gained new development in heritage. The research progress of physical geography in recent years mainly includes the integration and deepening of natural geographical processes, the integration of terrestrial surface systems, land-sea interactions and regional ecological environment management applications. The development of physical geography and its sub-disciplines needs to face the global environmental change and human needs, explore the application of new technologies and methods, conduct multi-factor and multi-process integration research, develop and improve geographic models, simulate and predict environmental change and sustainable development, and serve Major national needs and government decisions. In the process of development, it is urgent to pay attention to the following frontier areas and directions:(1) Geomorphology needs to focus on strengthening the relationship between geomorphology and global environmental change and human activities;(2) Biogeography needs to deepen the frontier fields such as attribute geography and global change biogeography. Exploring the spatial distribution of biogeography and human needs in the context of connection changes;(3) Hydrology needs to carry out comprehensive integration research of multi-element, multi-process and multi-scale, and develop emerging subject areas such as ecological hydrology, social hydrology and hydromorphology;(4) Physical Geography needs to be comprehensively introduced into climate change research’s role in the major international climate change research program, the climate change framework convention, etc;(5) Comprehensive physical geography needs to face the country’s major needs, focusing on the coupling of human and land systems In the areas of resource and environmental carrying capacity evaluation, ecological security pattern and ecological civilization construction, etc.;(6) Physical geography needs to deepen the coupling of natural and human elements and process research ‘establishing and developing complex system simulation model’ analysis and simulation change environment Nature, humanity Su coupling mechanism and the dynamic changes of land surface systems.

Download Full-text

Volcanism and Global Environmental Change

10.1017/cbo9781107415683 ◽

2015 ◽

Cited By ~ 3

Keyword(s):

Environmental Change ◽

Global Environmental Change ◽

Global Environmental

Download Full-text

Global Environmental Change: Biodiversity

10.2505/9780873551571 ◽

1997 ◽

Keyword(s):

Environmental Change ◽

Global Environmental Change ◽

Global Environmental

Download Full-text

Faculty Opinions recommendation of Estimating the tolerance of species to the effects of global environmental change.

Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature ◽

10.3410/f.718075930.793486479 ◽

2013 ◽

Author(s):

Garry Peterson ◽

Juan-Carlos Rocha

Keyword(s):

Environmental Change ◽

Global Environmental Change ◽

Global Environmental

Download Full-text

Global Environmental Change and Agriculture

jpa ◽

10.2134/jpa1991.0291 ◽

1991 ◽

Vol 4 (3) ◽

pp. 291-293 ◽

Cited By ~ 1

Author(s):

Stephen L. Rawlins

Keyword(s):

Environmental Change ◽

Global Environmental Change ◽

Global Environmental

Download Full-text

Political Consumerism for Sustainable Tourism

The Oxford Handbook of Political Consumerism ◽

10.1093/oxfordhb/9780190629038.013.17 ◽

2018 ◽

pp. 348-366

Author(s):

Machiel Lamers ◽

Jeroen Nawijn ◽

Eke Eijgelaar

Keyword(s):

Nature Conservation ◽

Environmental Change ◽

Social Theory ◽

Environmental Effects ◽

Sustainable Tourism ◽

Global Environmental Change ◽

Future Research ◽

Political Consumerism ◽

Global Environmental

Over the last decades a substantial and growing societal and academic interest has emerged for the development of sustainable tourism. Scholars have highlighted the contribution of tourism to global environmental change and to local, detrimental social and environmental effects as well as to ways in which tourism contributes to nature conservation. Nevertheless the role of tourist consumers in driving sustainable tourism has remained unconvincing and inconsistent. This chapter reviews the constraints and opportunities of political consumerism for sustainable tourism. The discussion covers stronger pockets and a key weak pocket of political consumerism for sustainable tourism and also highlights inconsistencies in sustainable tourism consumption by drawing on a range of social theory arguments and possible solutions. The chapter concludes with an agenda for future research on this topic.

Download Full-text