Rainfall Partitioning in Fragments of Cerrado Vegetation at Different Stages of Conduction of Natural Regeneration

Bessi, Débora; Dias, Herly Carlos Teixeira; Tonello, Kelly Cristina

doi:10.1590/1806-90882018000200015

Cited by 6 publications

(5 citation statements)

References 30 publications

(50 reference statements)

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“…The PCA proves this, where slope and surface roughness were explanatory variables and reduced runoff (Fang et al, 2015; Pires et al, 2006). Vegetation cover is among the important variables for explaining runoff reduction in the rehabilitation stage, which may be due to its interception of rainwater, impeding the water kinetic energy from reaching the ground and thus reducing runoff (Bessi, Dias, & Tonello, 2018; Freitas, Dias, Silva, & Tonello, 2016; Lorenzon, Dias, & Tonello, 2015). The explanation of the components for the variables SD, R, SPD, MSPR, D, Slope, ma, TP, and VC shows that these are the factors with higher importance during the rehabilitation stage of the mines for reducing runoff.…”

Section: Discussionmentioning

confidence: 99%

Surface runoff from an area undergoing soil rehabilitation after bauxite mining in southeastern Brazil

et al. 2021

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Changing hydrological processes and soil characteristics are of major environmental concern in surface mining. Runoff may be the best factor for determining the efficiency of rehabilitation after this type of mining, and needs more in-depth studies, but the environmental factors require more attention in order to control that runoff.The objective of this study was to compare the runoff during post-mining rehabilitation after the extraction of bauxite with that before mining, and to identify the factors that most affect it. Runoff from before the mining operations and during the rehabilitation after those operations were collected in seven plots in the area of a bauxite mine in southeastern Minas Gerais State, Brazil. The physical-environmental and anthropic factors interfering with the runoff were characterized for both periods, and their results were submitted to principal component analysis to define the parameters, which most demand attention in the mining rehabilitation stage. This study provides the first records of runoff in the field in areas rehabilitated after surface mining in Brazil, where the runoff decreased (1.75-times or 42.79%) from 0.76 to 0.30% of the precipitation during rehabilitation, compared to the reference area.The total porosity, density, and resistance of the soil, associated with the maintenance of slope, surface roughness, and vegetation cover, are the factors demanding more attention during the rehabilitation stage of surface mining in order to minimize runoff.

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Section: Discussionmentioning

confidence: 99%

Surface runoff from an area undergoing soil rehabilitation after bauxite mining in southeastern Brazil

et al. 2021

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“…from atmosphere-canopy-stem systems to the soil (Bessi et al, 2018a;Tonello et al, 2021a); this process also affects the water regulation function (Bessi et al, 2018b;Pereira et al, 2021).…”

Section: Figurementioning

confidence: 99%

Effects of Cerrado restoration on seasonal soil hydrological properties and insights on impacts of deforestation and climate change scenarios

Pereira¹,

Balbinot²,

Nnadi³

et al. 2022

Front. For. Glob. Change

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Knowing soil indicators during forest restoration is essentially better for understanding the recovery of ecosystem functions for water conservation. The aim of this study is to assess seasonal changes in hydrological properties of sandy soils subjected to passive restoration over 8 (F8), 11 (F11), and 46 (F46) years in the Cerrado. The soils assessed herein have the same land use history and climate conditions. Soil density (SD), moisture (SM), organic matter (SOM), resistance to penetration (SRP), infiltration rate (IR), and soil conductivity (K) were measured for 12 months, and a repellency index (RI) was obtained in the dry season. Some annual soil hydrological property differences based on passive restoration sites were observed, but differences in other properties were only noticed through seasonal analyses. Higher SM, IR, and K values were recorded in the rainy season, and higher SRP values were observed in the dry season. IR was approximately fourfold higher in F8 and threefold higher in F11 and F46 in the rainy season than in the dry season. IR was higher in the oldest restoration site and lower (by over 60%) in the youngest restoration site, which also showed higher RI. Thus, significant differences in several hydrological soil properties and forest restoration soils subjected to the assessed chrono-sequence helped to confirm the study hypothesis, namely: these properties are influenced by forest age and are a warning against deforestation and climate change scenarios. The recovery of hydrological properties can be a slow process, much slower than deforestation, and this can have severe implications because soil water inflow is related to groundwater maintenance. Therefore, improvement of hydrological properties can help to develop sustainable land management and better and more efficient soil conservation strategies for sites undergoing passive restoration such as the Cerrado.

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“…Stemflow can be defined as the intercepted rainwater collected by the stem that passively descends to the roots through gravity (BID-DICK; HUTTON; BURNS, 2018;BESSI et al, 2018a;BESSI et al, 2018b) and has been recognized as an essential process of water supply to spatially located areas of forest soil (TANAKA et al, 2017). According to Levia and Germer (2015), many researchers recognize stemflow as an important phenomenon that can have considerable effects on ecosystem hydrology, biogeochemistry, and ecology.…”

Section: Introductionmentioning

confidence: 99%

The dynamics of knowledge about stemflow: a systematic review

Tonello

Rosa

Salim

et al. 2020

Rev. Bras. Ciênc. Ambient. (Online)

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A importância do escoamento pelo tronco para a hidrologia e biogeoquímicados ecossistemas florestais é destacada pelo crescente interesse dacomunidade científica desde os anos 1970. Para resumir as principaiscontribuições dos estudos de escoamento pelo tronco (Sf) dos últimos anos,este trabalho apresenta uma revisão sistemática da literatura, incluindo375 publicações científicas de 2006 e 2019. O Sf em arbustos demonstrouuma eficiência superior (11,1%) ao escoamento pelo tronco em espéciesarbóreas (3,6%). Galhos, textura e composição das cascas, capacidade desaturação das folhas e intensidade dos ventos foram identificados como osfatores que mais influenciam o Sf. No entanto, apesar do crescente númerode publicações sobre o tema, a maioria concentra-se em regiões semiáridasda Ásia, principalmente na China e em regiões temperadas. Assim, para asregiões tropical e semiequatorial, ainda há um desconhecimento sobre opapel das diferentes espécies no ciclo biogeoquímico em relação ao Sf.

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Rainfall Partitioning in Fragments of Cerrado Vegetation at Different Stages of Conduction of Natural Regeneration

Cited by 6 publications

References 30 publications

Surface runoff from an area undergoing soil rehabilitation after bauxite mining in southeastern Brazil

Surface runoff from an area undergoing soil rehabilitation after bauxite mining in southeastern Brazil

Effects of Cerrado restoration on seasonal soil hydrological properties and insights on impacts of deforestation and climate change scenarios

The dynamics of knowledge about stemflow: a systematic review

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