Influence of soil management on soil physical characteristics and water storage in a mature rainfed olive orchard

Palese, Assunta Maria; Vignozzi, Nadia; Celano, Giuseppe; Agnelli, A.; Pagliai, M.; Xiloyannis, Cristos

doi:10.1016/j.still.2014.07.010

Cited by 125 publications

(87 citation statements)

References 35 publications

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“…At 80-120 cm in depth, the effect appeared later, in 2012/13 but was also persistent in time. Similar increases in infiltration rates in the upper layers of CC soil were observed by other authors (Palese et al, 2014;Yu et al, 2016). Moreover, Gish and Jury (1983) concluded that the pores generated by roots 5 present high connectivity and facilitate water transport through the soil.…”

Section: Soil Hydraulic Parameter Evolutionsupporting

confidence: 76%

Assessing the cover crop effect on soil hydraulic properties by inverse modelling in a 10-year field trial

Gabriel

Quemada

Martín‐Lammerding

et al. 2017

Preprint

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Abstract. Cover cropping in agriculture is expected to enhance many agricultural and ecosystems functions and services. Yet, few studies are available allowing to evaluate the impact of cover cropping on the long term change of soil hydrologic 10 functions. We assessed the long term change of the soil hydraulic properties due to cover cropping by means of a 10-year field experiment. We monitored continuously soil water content in non cover cropped and cover cropped fields by means of capacitance probes. We subsequently determined the hydraulic properties by inverting the soil hydrological model WAVE, using the time series of the 10 year monitoring data in the object function. We observed two main impacts, each having their own time dynamics. First, we observed an initial compaction as a result of the minimum tillage. This initial negative effect 15 was followed by a more positive cover crop effect. The positive cover crop effect consisted in an increase of the soil microand macro-porosity, improving the structure. This resulted in a larger soil water retention capacity. This latter improvement was mainly observed below 20 cm, and mostly in the soil layer between 40 and 80 cm depth. This study shows that the expected cover crop competition for water with the main crop can be compensated by an improvement of the water retention in the intermediate layers of the soil profile. This may enhance the hydrologic functions of agricultural soils in arid and semiarid 20 regions which often are constrained by water stress.

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Section: Soil Hydraulic Parameter Evolutionsupporting

confidence: 76%

Assessing the cover crop effect on soil hydraulic properties by inverse modelling in a 10-year field trial

Gabriel

Quemada

Martín‐Lammerding

et al. 2017

Preprint

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“…SMC is a comprehensive indicator of soil quality and can directly reflect soil water holding capacity (Palese et al, 2014;Zeng et al, 2013). This study showed that SMC decreased consistently from LD to SD, responding swiftly to degradation.…”

Section: Effects Of Alpine Swamp Meadow Degradation On Smc and Basic mentioning

confidence: 70%

“…FC and K s are mainly influenced by vegetation, soil (Pachepsky and Park, 2015), topography (Leij et al, 2004), climate (Jarvis et al, 2013) and human activities (Mubarak et al, 2009;Palese et al, 2014). In recent years, vegetation degradation has been widespread because of natural environmental changes and anthropogenic influences.…”

Section: Introductionmentioning

confidence: 99%

Variation of soil hydraulic properties with alpine grassland degradation in the eastern Tibetan Plateau

Pan

Hou

et al. 2017

Hydrol. Earth Syst. Sci.

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Abstract. Ecosystems in alpine mountainous regions are vulnerable and easily disturbed by global environmental change. Alpine swamp meadow, a unique grassland type in the eastern Tibetan Plateau that provides important ecosystem services to the upstream and downstream regions of international rivers of Asia and other parts of the world, is undergoing severe degradation, which can dramatically alter soil hydraulic properties and water cycling processes. However, the effects of alpine swamp meadow degradation on soil hydraulic properties and the corresponding influencing mechanisms are still poorly understood. In this study, soil moisture content (SMC), field capacity (FC) and saturated hydraulic conductivity (K s ) together with several basic soil properties under lightly degraded (LD), moderately degraded (MD) and severely degraded (SD) alpine swamp meadow were investigated; the variations in SMC, FC and K s with alpine swamp meadow degradation and their dominant influencing factors were analysed. The results showed that SMC and FC decreased consistently from LD to SD, while K s decreased from LD to MD and then increased from MD to SD, following the order of LD > SD > MD. Significant differences in soil hydraulic properties between degradation degrees were found in the upper soil layers (0-20 cm), indicating that the influences of degradation were most pronounced in the topsoils. FC was positively correlated with capillary porosity, water-stable aggregates, soil organic carbon, and silt and clay content; K s was positively correlated with non-capillary porosity (NCP). Relative to other soil properties, soil porosity is the dominant factor influencing FC and K s . Capillary porosity explained 91.1 % of total variance in FC, and NCP explained 97.3 % of total variance in K s . The combined effect of disappearing root activities and increasing sand content was responsible for the inconsistent patterns of NCP and K s . Our findings suggest that alpine swamp meadow degradation would inevitably lead to reduced water holding capacity and rainfall infiltration. This study provides a more comprehensive understanding of the soil hydrological effects of vegetation degradation. Further hydrological modelling studies in the Tibetan Plateau and similar regions are recommended to understand the effects of degraded alpine swamp meadows on soil hydraulic properties.

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“…Olive tree crops have an important climate change mitigation potential, since as permanent crops they provide carbon storage in soils [10][11][12][13]. In addition, the use of olive grove residues from orchard management and olive oil extraction residues (pomace, olive pit) in biomass boilers as fossil fuel replacement provide additional reductions in greenhouse gas (GHG) emissions [14,15].…”

Section: Introductionmentioning

confidence: 99%

“…The above issues and other environmental aspects have been investigated in many studies by using the Life Cycle Assessment methodology (LCA), both at local and global scales [16][17][18][19]. In these studies, Olive tree crops have an important climate change mitigation potential, since as permanent crops they provide carbon storage in soils [10][11][12][13]. In addition, the use of olive grove residues from orchard management and olive oil extraction residues (pomace, olive pit) in biomass boilers as fossil fuel replacement provide additional reductions in greenhouse gas (GHG) emissions [14,15].…”

Section: Introductionmentioning

confidence: 99%

Comparison of European Olive Production Systems

et al. 2016

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(1) Background: Spain, Italy, and Greece are the world's top olive oil producers. In recent decades, these countries have gradually diversified their farming system in the olive groves. The element of innovation with respect to the state of the art is that this paper aims to compare the environmental performance of different farming systems in a European context by performing a simplified Life Cycle Assessment; (2) Methods: Environmental performance was calculated according to the methodology of Life Cycle Assessment and the "Guidance for the implementation of the Product Environmental Footprint (PEF)". Average data were considered in order to describe a system with a great degree of complexity and high spatial heterogeneity; (3) Results: The study highlights the difficulty of identifying the farming method that presents the best environmental performance in each of the impact categories considered. In Greece, the lowest use of diesel, electricity, and water brings about advantages for many impact categories, albeit with low yields. While the highest olive yield obtained in Italy has positive consequences in terms of global warming, the highest use of fertilisers, in many cases, entails higher environmental impacts. On the other hand, in Spain the highest use of organo-phosphorous pesticides entails the highest impacts of eco-toxicity; (4) Conclusion: the reduction of the use of fertilizers and pesticides, as well as water conservation, are important issues which require the optimization of timing and techniques in order to achieve environmental advantages.

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Influence of soil management on soil physical characteristics and water storage in a mature rainfed olive orchard

Cited by 125 publications

References 35 publications

Assessing the cover crop effect on soil hydraulic properties by inverse modelling in a 10-year field trial

Assessing the cover crop effect on soil hydraulic properties by inverse modelling in a 10-year field trial

Variation of soil hydraulic properties with alpine grassland degradation in the eastern Tibetan Plateau

Comparison of European Olive Production Systems

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