Impacts of eucalypt plantation management on soil faunal communities and nutrient bioavailability: trading function for dependence?

Aslam, T.; Benton, Tim G.; Nielsen, Uffe N.; Johnson, Scott N.

doi:10.1007/s00374-015-1003-6

Cited by 29 publications

(11 citation statements)

References 44 publications

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“…The structural equation model indicated that, in addition to the overall increase in springtail abundance following fertilization (Table 1), the application of superphosphate also had a negative effect on springtail abundance that was mediated by available soil P. Other studies have similarly found that the application of inorganic fertilizers can have negative effects on soil fauna communities (Maraun et al 2001;Bünemann et al 2006;Tabaglio et al 2009;Thiele-Bruhn et al 2012). It is possible that this effect is caused by direct toxicity of the inorganic fertilizer, although available P in soil was still quite low, or due to stress associated with increased soil osmotic pressure caused by the fertilizer application (Jacobs and Timmer 2005;Aslam et al 2015). Alternatively, this may be a spurious correlation associated with the small sample size.…”

Section: Discussionmentioning

confidence: 80%

Response of belowground communities to short-term phosphorus addition in a phosphorus-limited woodland

et al. 2015

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Aims Soil biota regulate essential ecosystem processes but our understanding of how soil fertility constrains biotic interactions remains limited. We investigated belowground responses to short-term phosphorus (P) fertilization in a P-limited woodland. Methods Ten Eucalyptus tereticornis were randomly selected and five fertilized with superphosphate equivalent to 50 kg P ha −1 over 6 months. We estimated aboveground (understory) and belowground plant biomass, and collected samples for soil chemistry, arbuscular mycorrhizal (AM) root colonization, soil fungal abundance and community composition, and extraction of nematodes and microarthropods. Results P-fertilization increased root biomass, abundance of non-AM fungi, and abundances of Collembola, and altered fungal community structure, but was associated with a decrease in predatory nematodes. Structural equation modelling indicated that effects on Collembola and fungal abundances were mediated by direct effects of the fertilizer treatment and/or indirect effects via root biomass responses. However, fungal community compositional changes and reductions in predatory nematodes resulted primarily due to fertilization-mediated changes in soil pH. Conclusion Our study shows that understory plant communities and soil biota are P-limited at the study site but that some biotic groups appear to be more sensitive to changes in soil pH than to increases in P availability.

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Section: Discussionmentioning

confidence: 80%

Response of belowground communities to short-term phosphorus addition in a phosphorus-limited woodland

et al. 2015

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“…From the evidence discussed here, the answer to this question goes beyond the similarity in the remote perception of different cover types. We must be able to distinguish the nature of the complex system locally defined by vertical layering, above and belowground linkages, and functional biodiversity, all of which are the product of species identities, biogeochemical process, ecosystem functions, and history of land cover change [79][80][81] . The challenge for plantation managers is to design a production system that can be suitable for preserving both biotic diversity and ecosystem processes.…”

Section: Soil Invertebrate Communities As Indicators Of Ecosystem Status Differences Among Sites Acrossmentioning

confidence: 99%

Soil invertebrate diversity loss and functional changes in temperate forest soils replaced by exotic pine plantations

Cifuentes-Croquevielle

Stanton

Armestó

2020

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The global expansion of tree plantations is often claimed to have positive effects for mitigating global warming, preventing soil erosion, and reducing biodiversity loss. However, questions remain unanswered about the impacts of plantations on belowground diversity and soil properties. Here, we examine how forestry plantations of exotic trees affect critical soil functions and the composition of invertebrate assemblages, by comparing invertebrate diversity and soil physico-chemical properties between non-native Pinus radiata plantations, and nearby native forests in a region of extensive plantation activity in south-central Chile. We quantified differences in diversity, abundance, and community composition of soil invertebrates, as well as fundamental soil properties such as soil water content, water infiltration, nutrient status, and pH. We show that in this landscape mosaic of native forest and plantations, both soil invertebrate communities and physical soil properties differed significantly between systems, despite similar soil origins and topographies. We found a significant loss of soil carbon and a major reduction in taxonomic and functional diversity of soil invertebrates in pine plantation sites. Soil biotic and abiotic characteristics of plantations differed significantly from native forests in plantation-dominated south-central Chile, with profound consequences for ecosystem processes and resilience to future climate change.

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“…Madeira, Araujo e Pereira (1995) salientam que o acúmulo de massa na camada de serapilheira e a liberação de nutrientes pela mesma camada, é fortemente aumentada, quando se disponibiliza simultaneamente água e nutrientes. Aslam et al (2015) atribuem esse resultado ao uso da irrigação, visto que esta tecnologia proporcionou aumento da disponibilidade de nutrientes para as plantas adubadas, ou seja, insumos artificiais podem substituir o papel de biota do solo e aliado à irrigação promovem melhores resultados.…”

Section: Resultsunclassified

Irrigação e fertirrigação no desenvolvimento de eucalipto

et al. 2019

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O objetivo do trabalho foi avaliar a influência da irrigação localizada e da fertirrigação sobre o desenvolvimento do híbrido de eucalipto Grancam, no quarto ano após a sua implantação. O delineamento experimental foi em blocos casualizados, com parcelas subdivididas. As parcelas foram dois sistemas de irrigação localizada (microaspersão e gotejamento) e um tratamento sem irrigação e, as subparcelas, a adubação convencional e a fertirrigação. Foram avaliados: altura de plantas, diâmetro a altura do peito e volume de madeira. Os resultados foram submetidos à análise de variância e teste Tukey a 5% de significância. A altura das plantas foi 13% maior no sistema gotejamento e 11% no sistema de microaspersão em relação à área sem irrigação. A irrigação promoveu maiores valores de diâmetro a altura do peito, resultando em aumento de 19,8% na produção volumétrica de madeira quando irrigada por microaspersão e 17,7% quando irrigada por gotejamento, em relação à área sem irrigação. A irrigação localizada aumenta a produção volumétrica de madeira para o híbrido Grancam, além disso, quando utilizada a irrigação por gotejamento, há aumento da eficiência do uso da água na produção volumétrica de madeira. A fertirrigação pode substituir a adubação convencional em florestas irrigadas.

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Impacts of eucalypt plantation management on soil faunal communities and nutrient bioavailability: trading function for dependence?

Cited by 29 publications

References 44 publications

Response of belowground communities to short-term phosphorus addition in a phosphorus-limited woodland

Response of belowground communities to short-term phosphorus addition in a phosphorus-limited woodland

Soil invertebrate diversity loss and functional changes in temperate forest soils replaced by exotic pine plantations

Irrigação e fertirrigação no desenvolvimento de eucalipto

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