Soil physical quality responses to silvopastoral implementation in Colombian Amazon

Polanía-Hincapié, Karen L.; Olaya-Montes, Andrés; Cherubin, Maurício Roberto; Herrera-Valencia, Wilmer; Ortiz-Morea, Fausto Andrés; Silva-Olaya, Adriana M.

doi:10.1016/j.geoderma.2020.114900

Cited by 44 publications

(26 citation statements)

References 68 publications

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“…Plots of 10-20-year-old forests were dominated by shrubs from the families Melastomataceae (27), Mimosaceae (20), Rubiaceae (18), Moraceae (15), Annonaceae (14), Euphorbiaceae (13), Lauraceae (13), Myrtaceae (10), Flacourtiaceae (9), and Arecaceae, Burseraceae, Caesalpiniaceae, Cecropiaceae, Fabaceae, and Fabaceae, with one species from each. The most abundant plant species were Siparuna guianensiss (138) Henriettea fascicularis (89), Adenocalymma aspericarpum (76), Piptocoma discolor (71) and Inga thibaudiana (69).…”

Section: Study Area and Sampling Designmentioning

confidence: 99%

“…The forest corresponded to an old-growth or mature forest with the highest plant richness, a complex structure and diverse plant composition with trees, arborescent ferns and a well-developed understory and a well-stratified canopy. The richest plant families were Lauraceae (43), Rubiaceae (39), Melastomataceae (38), Fabaceae (36), Burseraceae (27), Sapotaceae (27), Moraceae (25), Mimosaceae (23), Annonaceae (22), Euphorbiaceae (19) y Chrysobalanaceae ( 16) Elaeocarpaceae (12), Meliaceae (12), Arecaceae (10), Myristicaceae (10), Sapindaceae (9), Caesalpiniaceae (8) Clusiaceae (7), Nyctaginaceae (7) and Lecythidaceae (6). The most abundant plant species were: Pseudosenefeldera inclinata (197), Wettinia praemorsa (135), Virola elongata (87), Ladenbergia muzonensis (56), Graffenrieda colombiana (50) and Geonoma maxima (47).…”

Section: Study Area and Sampling Designmentioning

confidence: 99%

“…The establishment of pastures for livestock production has caused annual forest losses of 138,000 ha, resulting in the second deforestation hotspot in the Amazon Basin [6]. The land-use change, with overgrazing of pastures and poor soil management has induced significant physical, chemical and biological degradation of soils [7][8][9][10], leading to unproductive pastures that are subsequently abandoned. The Amazon ecosystem has a high resilience [11] and considerable potential of natural regeneration [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

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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: Study Area and Sampling Designmentioning

confidence: 99%

Section: Study Area and Sampling Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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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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“…In the Amazon region, intensive deforestation of native rainforest for expansion of livestock and agricultural activities has led to significant changes of soil C stocks, and degradation of soil physico-chemical properties in many regions [ 12 – 15 ]. Particularly, soil health degradation and soil C declines were substantial in pasture systems with low-fertility soils [ 14 – 16 ].…”

Section: Introductionmentioning

confidence: 99%

Soil enzyme responses to land use change in the tropical rainforest of the Colombian Amazon region

et al. 2021

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Soil enzymes mediate key processes and functions of the soils, such as organic matter decomposition and nutrient cycling in both natural and agricultural ecosystems. Here, we studied the activity of five extracellular soil enzymes involved in the C, N, and P-mineralizing process in both litter and surface soil layer of rainforest in the northwest region of the Colombian Amazon and the response of those soil enzymes to land use change. The experimental study design included six study sites for comparing long-term pasture systems to native forest and regeneration practices after pasture, within the main landscapes of the region, mountain and hill landscapes separately. Results showed considerable enzymatic activity in the litter layer of the forest, highlighting the vital role of this compartment in the nutrient cycling of low fertility soils from tropical regions. With the land use transition to pastures, changes in soil enzymatic activities were driven by the management of pastures, with SOC and N losses and reduced absolute activity of soil enzymes in long-term pastures under continuous grazing (25 years). However, the enzyme activities expressed per unit of SOC did not show changes in C and N-acquiring enzymes, suggesting a higher mineralization potential in pastures. Enzymatic stoichiometry analysis indicated a microbial P limitation that could lead to a high catabolic activity with a potential increase in the use of SOC by microbial communities in the search for P, thus affecting soil C sequestration, soil quality and the provision of soil-related ecosystem services.

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“…De Souza et al (2021) showed that after four years of installing silvopastoral systems in Brazil, the soil carbon and nitrogen pools increased compared to regenerated soil. Polanía-Hincapi e et al (2021) demonstrated that the use of silvopastoral systems in Colombia contributed to the recovery of the physical characteristics of the soil, such as bulk density and penetration resistance, which could be associated with the increased carbon content of the soil, as it is assumed that a higher biomass, above and below ground, will be produced.…”

Section: Introductionmentioning

confidence: 99%

Influence of arboreal components on the physical-chemical characteristics of the soil under four silvopastoral systems in northeastern Peru

Vásquez

Valqui

Bobadilla

et al. 2021

Heliyon

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Silvopastoral systems (SPS) are presented as an alternative for the protection and recovery of soils; however, the relationship between the tree component and the physical-chemical characteristics of the soil is unknown. Thus, the objective of this study was to evaluate the physical-chemical characteristics of the soil under four silvopastoral systems (SPS), alder ( Alnus acuminata ), pine ( Pinus patula ), cypress ( Cupressus macrocarpa ), and pona ( Ceroxylon quindiuense ), and a treeless system (TS) in the Amazonas region. A completely randomized design (CRD) with five treatments and three replicates was used. The experimental units were sampled at two depths, 0–15 and 15–30 cm. The parameters evaluated were pH, electrical conductivity (dS/m), organic matter (%), phosphorus (ppm), potassium (ppm), cation exchange capacity (meq/100 g), porosity (%), mechanical resistance (kg/cm 2 ), bulk density (gr/cm 3 ), moisture (%) and total carbon (t/ha). The results were analyzed by analysis of variance (α = 0.05 %) and Tukey's test of means (p ≤ 0.05). The systems presented strong acidic pH values (4.11–5.61), which resulted in high organic matter contents in all systems (6.74–9.99 %). The highest phosphorus content was in the SPS with alder (12.64 ppm), and the highest potassium content was in the SPS with cypress (382.33 ppm). Porosity in all systems was higher than 60 %. The highest bulk density was between 15 and 30 cm, and the highest percentage of moisture was in the surface layer (0–15 cm). The mechanical strength was higher in the SPS with cypress (2.62 kg/cm 2 ). For all the systems evaluated, the highest carbon stock was found in the first 15 cm. The SPS with pine had the best soil characteristics and carbon sequestration (149.05 t/ha).

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Soil physical quality responses to silvopastoral implementation in Colombian Amazon

Cited by 44 publications

References 68 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

Soil enzyme responses to land use change in the tropical rainforest of the Colombian Amazon region

Influence of arboreal components on the physical-chemical characteristics of the soil under four silvopastoral systems in northeastern Peru

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