Termites as a factor of spatial differentiation of CO2 fluxes from the soils of monsoon tropical forests in southern Vietnam

Gerenyu, V. O. Lopes de; Anichkin, Alexander E.; Avilov, Vitaly; Kuznetsov, Andrey N.; Kurganova, I. N.

doi:10.1134/s1064229315020088

Cited by 19 publications

(17 citation statements)

References 23 publications

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“…6). On the other hand, not taking explicitly into account the spatial heterogeneity created by soil fauna in field measurements might lead to substantial errors in calculating carbon budgets Lopes de Gerenyu et al, 2015). It is thus crucial to develop sound (and biomespecific) strategies for combining in and ex situ measurements as parameters in more realistic SOM models.…”

Section: Implications For Modellingmentioning

confidence: 99%

“…These structures significantly affect microorganisms and plants (Chauvel et al, 1999;Frelich et al, 2006) and associated soil properties such as aggregate stability (Bossuyt et al, 2005(Bossuyt et al, , 2006 and hydraulic properties (Bottinelli et al, 2015;Andriuzzi et al, 2015). This has consequences for the sorption and degradation (Edwards et al, 1992;Bolduan and Zehe, 2006) and for C emissions Lopes de Gerenyu et al, 2015). Earthworms in particular feed on organic and mineral parts of the soil and mix them (Eckmeier et al, 2007;Wilkinson et al, 2009).…”

Section: Rootsmentioning

confidence: 99%

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Soil fauna: key to new carbon models

Filser

Faber

Tiunov

et al. 2016

SOIL

175

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Abstract. Soil organic matter (SOM) is key to maintaining soil fertility, mitigating climate change, combatting land degradation, and conserving above-and below-ground biodiversity and associated soil processes and ecosystem services. In order to derive management options for maintaining these essential services provided by soils, policy makers depend on robust, predictive models identifying key drivers of SOM dynamics. Existing SOM models and suggested guidelines for future SOM modelling are defined mostly in terms of plant residue quality and input and microbial decomposition, overlooking the significant regulation provided by soil fauna. The fauna controls almost any aspect of organic matter turnover, foremost by regulating the activity and functional composition of soil microorganisms and their physical-chemical connectivity with soil organic matter. We demonstrate a very strong impact of soil animals on carbon turnover, increasing or decreasing it by several dozen percent, sometimes even turning C sinks into C sources or vice versa. This is demonstrated not only for earthworms and other larger invertebrates but also for smaller fauna such as Collembola. We suggest that inclusion of soil animal activities (plant residue consumption and bioturbation altering the formation, depth, hydraulic properties and physical heterogeneity of soils) can fundamentally affect the predictive outcome of SOM models. Understanding direct and indirect impacts of soil fauna on nutrient availability, carbon sequestration, greenhouse gas emissions and plant growth is key to the understanding of SOM dynamics in the context of global carbon cycling models. We argue that explicit consideration of soil fauna is essential to make realistic modelling predictions on SOM dynamics and to detect expected non-linear responses of SOM dynamics to global change. WePublished by Copernicus Publications on behalf of the European Geosciences Union. 566 J. Filser et al.: Soil fauna: key to new carbon models present a decision framework, to be further developed through the activities of KEYSOM, a European COST Action, for when mechanistic SOM models include soil fauna. The research activities of KEYSOM, such as field experiments and literature reviews, together with dialogue between empiricists and modellers, will inform how this is to be done.

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Section: Implications For Modellingmentioning

confidence: 99%

Section: Rootsmentioning

confidence: 99%

Soil fauna: key to new carbon models

Filser

Faber

Tiunov

et al. 2016

SOIL

175

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“…According to the recent estimates of De Gerenyu et al . (), CO 2 emissions from termite mounds account for up to 10% of the total CO 2 emissions in a tropical forest in south Vietnam (Ohashi et al . ).…”

Section: Termites As Structural Pestsmentioning

confidence: 99%

Economic and ecological importance of termites: A global review

Govorushko

2018

Entomological Science

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In this review article, the positive and negative impacts of termites on ecosystems and human activities are examined. Various ecosystem services provided by termites – their importance as a food resource for humans, wildlife and domestic animals – are discussed, along with the use of these insects in scientific research and in folk and traditional medicine. Some insufficiently studied properties of termites (their ability to perceive the radiation of radioactive substances, electric fields and magnetic fields), as well as the use of termites in bionics, are described. Special attention is paid to the use of termite mounds for different purposes (e.g. in mineral deposit searches, in medical applications, as furnaces for copper smelting, for storage of some nuts, as burial sites, for gathering of edible mushrooms of the genus Termitomyces and as fertilizer). Examples of such use in different countries are given. This article reviews the activities of termites as pests of agriculture and forestry, including crops that are most affected, and termites as structural pests (e.g. wooden structures, household furniture, books and museum collections). Examples of termites’ malicious activities in different parts of the world are provided. Information on the invasions of termites is given, and the main areas of expansion of their habitat are described. The economic loss caused by termites in some countries and the world as a whole are presented. The article also lists the most economically important termite species in the world.

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“…6). On the other hand, not taking explicitly into account the spatial heterogeneity created by soil fauna in field measurements might lead to substantial errors in calculating carbon budgets (Wu et al, 2013;Lopes de Gerenyu et al, 2015). It is thus crucial to develop sound (and biomespecific) strategies for combining in and ex situ measurements as parameters in more realistic SOM models.…”

Section: Permafrostmentioning

confidence: 99%

Soil fauna: key to new carbon models

Filser¹,

Faber²,

Tiunov³

et al. 2016

Preprint

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Abstract. Soil organic matter (SOM) is key to maintaining soil fertility, mitigating climate change, combatting land degradation, and conserving above- and below-ground biodiversity and associated soil processes and ecosystem services. In order to derive management options for maintaining these essential services provided by soils, policy makers depend on robust, predictive models identifying key drivers of SOM dynamics. Existing SOM models and suggested guidelines for future SOM modelling are defined mostly in terms of plant residue quality and input and microbial decomposition, overlooking the significant regulation provided by soil fauna. The contribution of soil fauna activities to SOM decomposition can be as high as 40 %, as they control almost any aspect of organic matter turnover, foremost by regulating the activity and functional composition of soil microorganisms and their physico-chemical connectivity with soil organic matter. We suggest that inclusion of soil animal activities (plant residue consumption and bioturbation altering the formation, depth, hydraulic properties and physical heterogeneity of soils) can fundamentally affect the predictive outcome of SOM models. Understanding direct and indirect impacts of soil fauna on nutrient availability, carbon sequestration, greenhouse gas emissions and plant growth is key to the understanding of SOM dynamics in the context of global carbon cycling models. We argue that explicit consideration of the soil fauna is essential to make realistic modelling predictions on SOM dynamics and to detect expected non-linear responses to global change, and we suggest that guidelines for future SOM modelling should implement the role of soil fauna. Finally, we briefly introduce the new COST (European Cooperation in Science and Technology) Action ES 1406 (KEYSOM – Soil fauna: key to new carbon models) which brings together biogeochemists and soil ecologists from 21 EU countries. KEYSOM provides a research network for improved SOM models by implementing the role of the soil fauna as a basis for sustainable soil management. An interdisciplinary platform of experimentalists and modellers will assure better access to experimental data, identify the most burning research gaps and inform decision makers.

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Termites as a factor of spatial differentiation of CO2 fluxes from the soils of monsoon tropical forests in southern Vietnam

Cited by 19 publications

References 23 publications

Soil fauna: key to new carbon models

Soil fauna: key to new carbon models

Economic and ecological importance of termites: A global review

Soil fauna: key to new carbon models

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