Long-term monitoring of soil bulk density and erosion rates in two Prunus Persica (L) plantations under flood irrigation and glyphosate herbicide treatment in La Ribera district, Spain

Cerdà, Artemi; Daliakopoulos, Ioannis N.; Terol, Enric; Novara, Agata; Fatahi, Yalda; Moradi, Ehsan; Salvati, Luca; Pulido, Manuel

doi:10.1016/j.jenvman.2021.111965

Cited by 30 publications

(17 citation statements)

References 65 publications

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“…The management of organic matter is a key issue (Novara et al 2019), as are government policies (Chabbi et al 2017;Morris and Winter 1999). Moreover, the use of small plots is very important as it reduces the connectivity of flows (Cerdà et al 2021a;Keesstra et al 2018b) because each farm border acts as a soil erosion collector. This reduces the need to apply soil (Cerdà et al 2021b).…”

Section: Farmer Income Is Climate Dependent: Implications For Sustainable Agriculturementioning

confidence: 99%

“…Given these considerations, one might ask: what are the factors that determine high olive production? Several researchers attribute the greatest weight to environmental factors such as crop variety, soil type and surface cover or topography, and to aspects of the human management of olive groves such as the degree of mechanisation and use of agrochemicals (Cerdà et al 2021a;Karamesouti et al 2015;López-Vicente and Álvarez 2018;Michalopoulos et al 2020;Yu et al 2016). But what about the olive farmers?…”

Section: Introductionmentioning

confidence: 99%

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Long-term changes in rainfed olive production, rainfall and farmer’s income in Bailén (Jaén, Spain)

Rodrigo‐Comino

Senciales-González

et al. 2021

Euro-Mediterr J Environ Integr

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Economic, social, and climatic conditions affect agricultural production. Those changes are relevant to the rainfed agricultural areas of the Mediterranean Belt, including Spain—the largest producer of olive oil in the world. However, little is known about the effect of the climate on olive production and farmer income. In this study, the correlation between changes in rainfall and total olive production was examined using a long-term dataset (28 years) on conventional rainfed production and tillage soil management. The dataset focused on different olive groves in the municipality of Bailén (Jaén, Andalusia) that have been owned by the same farmer since 1966. The province of Jaén is the region of Spain with the highest production of olive oil and the largest area of olive groves. The data included annual rainfall, production per plot and the price of olives. After calculating missing data to complete the rainfall series, pairwise correlation analysis with nonparametric Spearman's rank coefficients and principal component analysis were used to process the data. The results showed that higher production coincided with increased rainfall during August and December. Therefore, we concluded that the impact of rainfall on olive production is variable and depends on drought intensity and the monthly rainfall distribution. An economic study showed that farmer income was highly dependent on the seasonal distribution of the rainfall among other factors such as the price of olives. Farmer income was low during drought periods, indicating that rainfed agriculture is perceived by farmers as unsustainable due to the resulting highly variable income. This study could help to prevent risks to food security in the future. We recognise that other key factors have also been important influences on the fluctuations in olive production over the years, such as soil properties and plant status. However, cultivating olives without irrigation—depending only on the total rainfall amount and rainfall intensity to supply all of the water consumed by the plants—is very risky too. This research demonstrates that the subsistence of Mediterranean rainfed olive farmers can be highly dependent on the rainfall conditions.

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Section: Farmer Income Is Climate Dependent: Implications For Sustainable Agriculturementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Long-term changes in rainfed olive production, rainfall and farmer’s income in Bailén (Jaén, Spain)

Rodrigo‐Comino

Senciales-González

et al. 2021

Euro-Mediterr J Environ Integr

Self Cite

View full text Add to dashboard Cite

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“…These areas act as a threshold between biotic and abiotic factors as controllers of soil Fig. 8 The infiltration rate of a given soil 0.000 0.000 0.000 0.000 degradation processes, as demonstrated by other authors under similar conditions (Mohammed et al 2020;Cerdà et al 2021b). C1 explains 28.5% of the variance and can be considered as a biological component.…”

Section: Incidence Of the Rainfall Gradient In Determining Factors Of The Soil Hydrological Dynamicsmentioning

confidence: 65%

Factors determining the soil available water during the last two decades (1997–2019) in southern Spain

2021

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Assessing soil hydrological conditions can provide essential information for understanding the environmental processes that affect ecosystem services and, particularly in the context of ongoing climate change. This is key in areas affected by water scarcity such as the Mediterranean belt. Therefore, the main goals of this research are (i) to assess the main rainfall dynamics and trends of some representative hotspots along with southern Spain and (ii) to determine the impact on the soil available water content (AWC) over the last two decades. An analysis of daily precipitation and soil hydrological conditions was combined with soil sampling (543) and laboratory analyses to evaluate the properties related to the soil infiltration and retention capacity. The results show that the organic factors control soil properties and their hydrodynamics in southern Spain. Furthermore, a general declining trend in soil water availability is observed over the last two decades. This is more extreme in arid and semi-arid areas, where there have been several years in the last decade with more than 200 days without the available water content. Moreover, in these areas, heavy rainfall during specific moments of the year is the key factor that manifests a greater incidence in areas with steeper slopes, which in turn, also conditions the biological factors and the hydrodynamics of the soil. In short, in the context of climate change, the analysis of soil hydrological dynamics could be used to identify biodiversity thresholds in the Mediterranean area and even to detect phenological changes in specific plant species.

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“…The Vicia sativa L. reduced runoff discharge from 32.87 to 13.68% [56]. Vegetation can be a sustainable solution to reduce soil runoff and erosion [57,58]. The positive effects of vegetation on rainfall in the shallow slope are shown in two aspects: the reduction of slope runoff and sediment transport [59,60]; the second is that vegetation coverage gradually decreases with the rate of soil erosion within a certain number of years [61].…”

Section: Discussionmentioning

confidence: 99%

Effect of Vegetation Roots on the Threshold of Slope Instability Induced by Rainfall and Runoff

2021

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Although vegetation is increasingly used to mitigate landslide risks, how vegetation roots affect the landslide threshold of slope has rarely been explored, particularly in the case of lateral runoff. In this study, we established a two-dimensional saturated-unsaturated infiltration equation considering the hydraulic effects of vegetation roots. The analytical solution for the shallow unsaturated two-dimensional coupled infiltration of vegetated slope (VS) was obtained by a Fourier transform technique. The numerical method was used to evaluate the stability of VS caused by four root architectures, the rainfall amount, and the rainfall duration. Subsequently, the transformation law in runoff, vegetation evaporation, and landslide threshold was analyzed. The results indicate that the factor of safety (FOS) increases with increasing drying time and decreases with increasing depth; the minimum FOS is at the junction of the root-rootless zone. Runoff and vegetation evaporation are favorable for the shallow stability of VS. The time of the safe area is 35 h for rainfall amount 500 m in the uniformly root clay slope. Moreover, four landslide threshold curves that reflected the root architecture, rainfall amount, and rainfall duration are developed, which are more realistic than those created using one-dimensional instability modeling.

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Long-term monitoring of soil bulk density and erosion rates in two Prunus Persica (L) plantations under flood irrigation and glyphosate herbicide treatment in La Ribera district, Spain

Cited by 30 publications

References 65 publications

Long-term changes in rainfed olive production, rainfall and farmer’s income in Bailén (Jaén, Spain)

Long-term changes in rainfed olive production, rainfall and farmer’s income in Bailén (Jaén, Spain)

Factors determining the soil available water during the last two decades (1997–2019) in southern Spain

Effect of Vegetation Roots on the Threshold of Slope Instability Induced by Rainfall and Runoff

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