A Framework to Incorporate Biological Soil Quality Indicators into Assessing the Sustainability of Territories in the Ecuadorian Amazon

Huera-Lucero, Thony; Labrador-Moreno, Juana; Salas, José Blanco; Téllez, Trinidad Ruiz

doi:10.3390/su12073007

Cited by 34 publications

(31 citation statements)

References 36 publications

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“…Soil microbial communities seem not to be severely affected, while soil macrofauna does [47,52]. In addition, there are different soil macrofauna compositions in natural and anthropic soils due to management practices that modify soil conditions and edaphic biotic interactions [53].…”

Section: Introductionmentioning

confidence: 99%

Soil Quality Restoration during the Natural Succession of Abandoned Cattle Pastures in Deforested Landscapes in the Colombian Amazon

et al. 2021

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Successional processes in abandoned pastures in the Amazon region have been well-documented for the floristic component; however, soil succession has been poorly studied. This study assessed the physical, chemical and biological responses of soils in the Amazon region during the natural succession process in two main landscapes of the Colombian Amazon. Soil data on soil physico–chemical (bulk density, macroaggregates, pH and minerals) and biological (soil macrofauna) composition were evaluated along chronosequence with four successional stages: (i) degraded pastures, (ii) young (10–20-year-old), (iii) middle-age (25–40-year-old) and (iv) mature forests, in two different landscapes (hill and mountain). Individual soil variables and a synthetic indicator of soil quality (GISQ) were evaluated as tools for natural succession monitoring. The results corroborated the negative impact that cattle ranching has on Amazon soils. After 10 years of natural succession, the physico–chemical and biological soil components were widely restored. Less soil compaction and organic carbon occurred in older successional stages. Soil macrofauna richness and density increased along the chronosequence, with an evident association between the macrofauna composition and the macroaggregates in the soil. None of the individual soil properties or the GISQ indicator discriminated among natural succession stages; therefore, new soil quality indicators should be developed to monitor soil quality restoration in natural successions.

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Section: Introductionmentioning

confidence: 99%

Soil Quality Restoration during the Natural Succession of Abandoned Cattle Pastures in Deforested Landscapes in the Colombian Amazon

et al. 2021

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“…Os indicadores do solo podem ser químicos, físicos e/ou biológicos. Os químicos estão relacionados principalmente à fertilidade, pH, disponibilidade de fósforo, capacidade de troca catiônica, ciclagem de nutrientes, nitrogênio orgânico, teor de carbono orgânico no solo, teor de matéria orgânica, salinidade e a presença ou não de metais pesados (Cardoso et al, 2013;Li et al, 2019;Huera-Lucero et al, 2020). Já os principais caracterizadores físicos do solo dizem respeito, principalmente, a sua densidade, porosidade, condutividade hidráulica, potencial erosivo, estrutura, consistência, compactação e topografia da área (Stefanoski et al, 2013;Nawaz et al, 2013;Bünemanna et al, 2018;Hao et al, 2019;Yin et al, 2020b).…”

Section: Indicadores Ambientais Para Caracterização De Sistemas De Pr...unclassified

Técnicas hidricamente eficientes e modelagem: estratégias para a sustentabilidade e intensificação da agricultura frente às mudanças do clima em ambientes suscetíveis à desertificação

Costa¹,

Souza²,

Jardim³

et al. 2022

Rev. Bras. Geog. Fis.

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Em regiões suscetíveis a desertificação, como é o caso do Semiárido, o uso de tecnologias hídricas pode servir como ferramenta para mitigar os impactos ambientais, aumentar a eficiência no uso da água e garantir uma menor estacionalidade da produção. Nesta revisão, buscamos abordar as principais estratégias que podem contribuir para a sustentabilidade, intensificação e planejamento da atividade agrícola nas regiões com riscos de desertificação. Para isso, discutiu-se os problemas e as principais características ambientais das áreas suscetíveis a esse processo; abordou-se o uso de tecnologias hídricas (e.g. adoção de espécies vegetais resistentes ao estresse hídrico, uso de clones/cultivares mais adaptados à condições estressantes, intensidade de corte, cultivo, uso de cobertura morta), práticas que visam aumentar a eficiência do uso da água na agricultura; destacou-se o modelo AquaCrop da FAO como ferramenta para inferir sobre o impacto de possíveis cenários ambientais na agricultura, bem como simular as melhores estratégias de resiliência; e, por fim, frisou-se outros conceitos relacionados a sustentabilidade da agricultura como: eficiência no uso da água, agricultura verde, e caracterizadores de um sistema agrícola. Nossos achados reforçam a necessidade de uma visão holística dos agroecossistemas para integrar as tecnologias hídricas a outras estratégias de aumento da eficiência no uso dos recursos e de redução a liberação de gases de efeito estufa (GEE), de modo a contribuir com a sustentabilidade da atividade e a mitigação dos impactos no meio ambiente. Outrossim, com a utilização da modelagem é possível prever os impactos que as condições climáticas futura proporcionarão ao planeta, de modo a planejar estratégias mais eficazes para a convivência da agricultura com as mudanças do clima.Palavras-chave: AquaCrop; eficiência no uso da água; estratégias de resiliência agrícola. Water technologies and modeling: strategies in the search for sustainability and intensification of agriculture in susceptible environments to desertification A B S T R A C TIn regions susceptible to desertification, such as the semi-arid region, the use of water technologies can serve as tool to mitigate environmental impacts, increase water efficiency, and ensure a lower state of production. In this review, we seek to address the main strategies that can contribute to the sustainability, intensification and planning of agricultural activity in regions with desertification risks. To this end, the problems and main environmental characteristics of the areas susceptible to this process were discussed; the use of water technologies (e.g. adoption of plant species resistant to water stress, use of clones/cultivars more adapted to stressful conditions, cutting intensity, cultivation, use of mulch), practices aimed at increasing the efficiency of water use in agriculture; the FAO AquaCrop model was highlighted as a tool to infer about the impact of possible environmental scenarios on agriculture, as well as to simulate the best resilience strategies; and, finally, other concepts related to the sustainability of agriculture were emphasized, such as: efficiency in the use of water, green agriculture, and characterizations of an agricultural system. Our findings reinforce the need for a holistic view of agroecosystems to integrate water technologies with other strategies to increase resource efficiency and reduce the release of greenhouse gases (GHG), to contribute to the sustainability of the activity and the mitigation of impacts on the environment. Moreover, with the use of modeling it is possible to predict the impacts that future weather conditions will bring to the planet, to plan more effective strategies for the coexistence of agriculture with climate change.Keywords: AquaCrop; efficiency in water use; agricultural resilience strategies

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“…The following four elements are the main determinants of human and animal health: soil fertility, water quality, air purity, and technologies employed in the agri-food processing [1][2][3]. Each of these elements is crucial to the sustainable development of populations, with soil playing a significant role in this chain due to its quality being the main driver of the dietary value of agricultural crops produced [4,5].…”

Section: Introductionmentioning

confidence: 99%

Microbiological Study in Petrol-Spiked Soil

2021

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The pollution of arable lands and water with petroleum-derived products is still a valid problem, mainly due the extensive works aimed to improve their production technology to reduce fuel consumption and protect engines. An example of the upgraded fuels is the BP 98 unleaded petrol with Active technology. A pot experiment was carried out in which Eutric Cambisol soil was polluted with petrol to determine its effect on the microbiological and biochemical properties of this soil. Analyses were carried out to determine soil microbiome composition—with the incubation and metagenomic methods, the activity of seven enzymes, and cocksfoot effect on hydrocarbon degradation. The following indices were determined: colony development index (CD); ecophysiological diversity index (EP); index of cocksfoot effect on soil microorganisms and enzymes (IFG); index of petrol effect on soil microorganisms and enzymes (IFP); index of the resistance of microorganisms, enzymes, and cocksfoot to soil pollution with petrol (RS); Shannon–Weaver’s index of bacterial taxa diversity (H); and Shannon–Weaver’s index of hydrocarbon degradation (IDH). The soil pollution with petrol was found to increase population numbers of bacteria and fungi, and Protebacteria phylum abundance as well as to decrease the abundance of Actinobacteria and Acidobacteria phyla. The cultivation of cocksfoot on the petrol-polluted soil had an especially beneficial effect mainly on the bacteria belonging to the Ramlibacter, Pseudoxanthomonas, Mycoplana, and Sphingobium genera. The least susceptible to the soil pollution with petrol and cocksfoot cultivation were the bacteria of the following genera: Kaistobacter, Rhodoplanes, Bacillus, Streptomyces, Paenibacillus, Phenylobacterium, and Terracoccus. Cocksfoot proved effective in the phytoremediation of petrol-polluted soil, as it accelerated hydrocarbon degradation and increased the genetic diversity of bacteria. It additionally enhanced the activities of soil enzymes.

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A Framework to Incorporate Biological Soil Quality Indicators into Assessing the Sustainability of Territories in the Ecuadorian Amazon

Cited by 34 publications

References 36 publications

Soil Quality Restoration during the Natural Succession of Abandoned Cattle Pastures in Deforested Landscapes in the Colombian Amazon

Soil Quality Restoration during the Natural Succession of Abandoned Cattle Pastures in Deforested Landscapes in the Colombian Amazon

Técnicas hidricamente eficientes e modelagem: estratégias para a sustentabilidade e intensificação da agricultura frente às mudanças do clima em ambientes suscetíveis à desertificação

Microbiological Study in Petrol-Spiked Soil

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