Permanence of Water Effectiveness in the Root Zone of the Caatinga Biome

Costa, Carlos Alexandre Gomes; Araújo, José Carlos de; Lopes, José Wellington Batista; Pinheiro, Everton Alves Rodrigues

doi:10.1590/1983-21252016v29n320rc

Cited by 7 publications

(8 citation statements)

References 39 publications

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“…Rev Bras Cienc Solo 2019;43:e0180236 2011). The minimum SM values for Espodossolo Humilúvico (Carbic Podzol) and Argissolo Vermelho-Amarelo (Haplic Acrisol) soil type plots (Table 3) were higher than those obtained by Costa et al (2016) for Argissolo Eutrófico (Haplic Lixisol), Luvissolo Crômico (Chromic Luvisol) or Neossolo Litólico (Lithic Leptsol) in the same region. Most likely, this is because coastal watersheds are susceptible to a tropical regime with high rainfall rates in the rainy season, differently from the Caatinga biome over a very hot semi-arid zone (Barbosa et al, 2018;Rozante et al, 2018;Gadelha et al, 2019), where 70 % of the SM drop below the wilting point (Costa et al, 2016).…”

Section: Discussionmentioning

confidence: 73%

“…Still, at upstream of the border between the two soil types, the waterlogging lasted longer at site 3 because of its proximity to the watershed boundary, where the groundwater is shallower. These behaviours typically occur in thin, flat soil packages associated with restrictive layers (duripan in this study), because they hold a high water permanence subjected to sub-surface percolation processes (Costa et al, 2016).…”

Section: Discussionmentioning

confidence: 95%

“…Souza et al (2011) have applied the SM-relative differences ranking to identify sites in the Brazilian semi-arid that could reproduce the mean SM spatial pattern for agricultural water management purposes, while Silva Junior et al (2016), Melo and Montenegro (2015), and Silva et al (2015) have investigated the SM temporal dynamics and verified the importance of SM temporal stability studies for reducing Rev Bras Cienc Solo 2019;43:e0180236 hydrological monitoring costs under different land cover and soil types. Concerning the impact of SM temporal dynamics, Costa et al (2016) have investigated the permanence of soil water effectiveness under preserved-vegetation constraints in three semi-arid soil types. In a tropical volcanic archipelago, Montenegro et al (2009Montenegro et al ( , 2018 have investigated the water potential related to SM dynamics in three soil types to support local soil water management and conservation practices.…”

Section: Introductionmentioning

confidence: 99%

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Stability of Soil Moisture Patterns Retrieved at Different Temporal Resolutions in a Tropical Watershed

Barbosa

Lira

Coelho

et al. 2019

Rev. Bras. Ciênc. Solo

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Above and underground hydrological processes depend on soil moisture (SM) variability, driven by different environmental factors that seldom are well-monitored, leading to a misunderstanding of soil water temporal patterns. This study investigated the stability of the SM temporal dynamics to different monitoring temporal resolutions around the border between two soil types in a tropical watershed. Four locations were instrumented in a small-scale watershed (5.84 km 2) within the tropical coast of Northeast Brazil, encompassing different soil types (Espodossolo Humilúvico or Carbic Podzol, and Argissolo Vermelho-Amarelo or Haplic Acrisol), land covers (Atlantic Forest, bush vegetation, and grassland) and topographies (flat and moderate slope). The SM was monitored at a temporal resolution of one hour along the 2013-2014 hydrological year and then resampled a resolutions of 6 h, 12 h, 1 day, 2 days, 4 days, 7 days, and 15 days. Descriptive statistics, temporal variability, time-stability ranking, and hierarchical clustering revealed uneven associations among SM time components. The results show that the time-invariant component ruled SM temporal variability over the time-varying parcel, either at high or low temporal resolutions. Time-steps longer than 2 days affected the mean statistical metrics of the SM time-variant parcel. Additionally, SM at downstream and upstream sites behaved differently, suggesting that the temporal mean was regulated by steady soil properties (slope, restrictive layer, and soil texture), whereas their temporal anomalies were driven by climate (rainfall) and hydrogeological (groundwater level) factors. Therefore, it is concluded that around the border between tropical soil types, the distinct behaviour of time-variant and time-invariant components of SM time series reflects different combinations of their soil properties.

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Section: Discussionmentioning

confidence: 73%

Section: Discussionmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

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Stability of Soil Moisture Patterns Retrieved at Different Temporal Resolutions in a Tropical Watershed

Barbosa

Lira

Coelho

et al. 2019

Rev. Bras. Ciênc. Solo

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“…Livestock frequently access humid habitats such as river banks on their daily search for fresh water and native forage (Dias, Massara & Bocchiglieri, 2019;Lopes, Montenegro & Lima, 2019). Moreover, fodder availability is seasonal and scarce (Costa et al, 2016), while P. juliflora fruits and foliage represent a permanent and appreciable food source for livestock, likely stimulating its fruit consumption.…”

Section: Discussionmentioning

confidence: 99%

Seed germination and early seedling survival of the invasive speciesProsopis juliflora(Fabaceae) depend on habitat and seed dispersal mode in the Caatinga dry forest

Nascimento

Leal

Tavares³

et al. 2020

PeerJ

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Background Biological invasion is one of the main threats to tropical biodiversity and ecosystem functioning. Prosopis juliflora (Sw) DC. (Fabales: Fabaceae: Caesalpinioideae) was introduced in the Caatinga dry forest of Northeast Brazil at early 1940s and successfully spread across the region. As other invasive species, it may benefit from the soils and seed dispersal by livestock. Here we examine how seed dispersal ecology and soil conditions collectively affect seed germination, early seedling performance and consequently the P. juliflora invasive potential. Methods Seed germination, early seedling survival, life expectancy and soil attributes were examined in 10 plots located across three habitats (flooding plain, alluvial terrace and plateau) into a human-modified landscape of the Caatinga dry forest (a total of 12,000 seeds). Seeds were exposed to four seed dispersal methods: deposition on the soil surface, burial in the soil, passed through cattle (Boss taurus) digestive tracts and mixed with cattle manure and passed through mule (Equus africanus asinus × Equus ferus caballus) digestive tracts and mixed with mule manure. Seeds and seedlings were monitored through a year and their performance examined with expectancy tables. Results Soils differed among habitats, particularly its nutrient availability, texture and water with finely-textured and more fertile soils in the flooding plain. Total seed germination was relatively low (14.5%), with the highest score among seeds buried in the flooding plain (47.4 ± 25.3%). Seed dispersal by cattle and mule also positively impacted seed germination. Early seedling survival rate of P. juliflora was dramatically reduced with few seedlings still alive elapsed a year. Survival rate was highest in the first 30 days and declined between 30 and 60 days with stabilization at 70 days after germination in all seed treatments and habitats. However, survival and life expectancy were higher in the flooding plain at 75 days and lower in the plateau. Prosopis juliflora seedling survival and life expectancy were higher in the case seeds were mixed with cattle manure. Synthesis Prosopis juliflora seeds and seedlings are sensitive to water stress and habitat desiccation. Therefore, they benefit from the humid soils often present across human-disturbed flooding plains. This plant also benefits from seed deposition/dispersal by livestock in these landscapes, since cattle manure represents a nutrient-rich and humid substrate for both seeds and seedlings. The quality of the seed dispersal service varies among livestock species, but this key mutualism between exotic species is due to the arillate, hard-coated and palatable seeds. Prosopis juliflora traits allow this species to take multiple benefits from human presence and thus operating as a human commensal.

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“…Livestock frequently access humid habitats such as river banks on their daily search for fresh water and native forage (Dias et al, 2019;Lopes et al, 2019). Moreover, fodder availability is seasonal and scarce (Costa et al, 2016), while P. juliflora fruits and foliage represent a permanent and appreciable food source for livestock, likely stimulating its fruit consumption.…”

Section: Discussionmentioning

confidence: 99%

Peer Review #1 of "Seed germination and early seedling survival of the invasive species Prosopis juliflora (Fabaceae) depend on habitat and seed dispersal mode in the Caatinga dry forest (v0.2)"

2020

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Background. Biological invasion is one of the main threats to tropical biodiversity and ecosystem functioning. Prosopis juliflora (Sw) DC. (Fabales: Fabaceae: Caesalpinioideae) was introduced in the Caatinga dry forest of Northeast Brazil at early 1940s and successfully spread across the region. As other invasive species, it may benefit from the soils and seed dispersal by livestock. Here we examine how seed dispersal ecology and soil conditions collectively affect seed germination, early seedling performance and consequently the P. juliflora invasive potential. Methods. Seed germination, early seedling survival, life expectancy and soil attributes were examined in 10 plots located across three habitats (flooding plain, alluvial terrace and plateau) into a humanmodified landscape of the Caatinga dry forest (a total of 12,000 seeds). Seeds were exposed to four seed dispersal methods: deposition on the soil surface, burial in the soil, passed through cattle (Boss taurus) digestive tracts and mixed with cattle manure and passed through mule (Equus africanus asinus × Equus ferus caballus) digestive tracts and mixed with mule manure. Seeds and seedlings were monitored through a year and their performance examined with expectancy tables. Results. Soils differed among habitats, particularly its nutrient availability, texture and water with finelytextured and more fertile soils in the flooding plain. Total seed germination was relatively low (14.5%), with the highest score among seeds buried in the flooding plain (47.4 ± 25.3%). Seed dispersal by cattle and mule also positively impacted seed germination. Early seedling survival rate of P. juliflora was dramatically reduced with few seedlings still alive elapsed a year. Survival rate was highest in the first 30 days and declined between 30 to 60 days with stabilization at 70 days after germination in all seed treatments and habitats. However, survival and life expectancy were higher in the flooding plain at 75 days and lower in the plateau. Prosopis juliflora seedling survival and life expectancy were higher in the case seeds were mixed with cattle manure. Synthesis. Prosopis juliflora seeds and seedlings are sensitive to water stress and habitat desiccation. Therefore, they benefit from the humid soils often present across human-disturbed flooding plains.

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Permanence of Water Effectiveness in the Root Zone of the Caatinga Biome

Cited by 7 publications

References 39 publications

Stability of Soil Moisture Patterns Retrieved at Different Temporal Resolutions in a Tropical Watershed

Stability of Soil Moisture Patterns Retrieved at Different Temporal Resolutions in a Tropical Watershed

Seed germination and early seedling survival of the invasive speciesProsopis juliflora(Fabaceae) depend on habitat and seed dispersal mode in the Caatinga dry forest

Peer Review #1 of "Seed germination and early seedling survival of the invasive species Prosopis juliflora (Fabaceae) depend on habitat and seed dispersal mode in the Caatinga dry forest (v0.2)"

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