Long-term non-sustainable soil erosion rates and soil compaction in drip-irrigated citrus plantation in Eastern Iberian Peninsula

Cerdà, Artemi; Novara, Agata; Moradi, Ehsan

doi:10.1016/j.scitotenv.2021.147549

Cited by 22 publications

(12 citation statements)

References 78 publications

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“…After the original forest ecosystem was converted to crop cultivation, the ability of soil and water retention of vegetation was weakened, especially in the slope land (Zhu et al, 2021). High soil loss always occurred on slopes, a study in citrus plantation in Eastern Iberian Peninsula demonstrating that soil thickness decreased by 1.5 cm yr −1 between 2007 and 2020 due to severe soil erosion (Cerdà et al, 2021). Sediment yield and runoff volume in the banana plantation mainly occur during the rainy season.…”

Section: Discussionmentioning

confidence: 99%

Comprehensive evaluation of throughfall erosion in the banana plantation

Omar

Zhang

et al. 2022

Earth Surf Processes Landf

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Banana is an important cash crop in tropical and subtropical areas; however, the development of banana farming has caused thorny ecological problems, such as water and soil loss. There are few studies on the runoff response to rainfall in banana land to date. In this study, several evaluation indexes, rainfall redistribution, throughfall erosivity, splash kinetic energy, soil splash loss and runoff, respectively, were used to clarify the mechanism of soil erosion in banana land. Results showed that the atmospheric rainfall was significantly redistributed by the banana canopy, with about 81.2% throughfall, 8.3% stemflow and the rest canopy interception.Although the throughfall erosivity evaluated by the model was slightly lower than that of open rainfall, the throughfall kinetic energy and the soil particle splash loss reached 1.5 times and 5 times higher than that of open rainfall, respectively.Consequently, throughfall has an obvious splash erosion effect on the surface soil. In addition, influenced by throughfall and stemflow, surface runoff during the rainy season (May-September) accounts for the annual 91.7%, July and August in particular having the highest incidence of soil erosion in banana land. The above results suggest that the convergence effect of the banana canopy on rainwater is the main inducement for the increase in throughfall volume and surface runoff volume. Therefore, it is necessary to implement soil and water conservation measures on banana fields during the rainy season, such as planting low vegetation under the banana canopy to mitigate splash effects.

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Section: Discussionmentioning

confidence: 99%

Comprehensive evaluation of throughfall erosion in the banana plantation

Omar

Zhang

et al. 2022

Earth Surf Processes Landf

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“…The intercropping plants were effective to intercept and reassemble of raindrops, and then reduce the rainfall kinetic energy. Thus, a topical issue is in physically interpreted the difference in driptip size among plant species, and more researches need to develop the understanding the impact of plant types with suitable intercropping pattern on soil erosion to avoid soil degradation (Cerdà et al, 2021; Novara et al, 2021). Taking the leaf features into consideration, they effected the kinetic energy of raindrops and the residence time of water at the soil surface.…”

Section: Discussionmentioning

confidence: 99%

The detected effects of driptips and leaf wettability on the kinetic energy of throughfall in rubber‐based agroforestry in Xishuangbanna

Liu

Zhang

et al. 2022

Ecohydrology

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Driptips play important roles in controlling soil erosion and in the water cycle. The driptips size distribution and the morphology of water droplets on the leaves among rubber (Hevea brasiliensis) and intercropping species (Camellia sinensis, Citrus reticulata, Flemingia macrophylla and Theobroma cacao) were measured. Driptip-producing experiments were conducted indoors on stabilized leaves of five species with artificially mist spray. In all five foliage species, the diameter of the driptips from rubber leaves was the lowest. Furthermore, the relationship between driptips size and the mean leaf width at 3 mm from the rubber leaf tip was significantly positively correlated. Leaf wettability as measured by water droplets height linearly increase with the total volume of water which dropped on the leaves of all five species. The contact angle of the water droplets and the total volume of the droplet were significantly negatively correlated. Based on physical theory, the kinetic energy of the driptips was calculated by estimating the diameters of the driptip from all five species. The results indicated that it was important to consider the kinetic energy of driptips in selection of intercropping species when constructing rubber-based agroforestry plantations. Understanding the relationship between driptips size and the development of leaf tips (leaf width at 3 mm from the leaf tip) will require more experiments with different leaf inclinations, and the results also confirmed that using the contact angle of water droplets to assess leaf wettability. This study can help to predict canopy water processes, such as canopy water storage and drainage.

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“…According to these authors, among the main processes of soil degradation are those of a physical nature: erosion, sealing and compaction, which are due, among others, to the low content of soil organic matter (<2% on average). Cerdà et al (2021) confirm this problem in the European Mediterranean region and report that between 2007 and 2020 (13 years) the soil bulk density of some soils increased from 1.05 to 1.33 g cm −3 . In this Mediterranean region, clay soils rich in smectites are abundant (Sandler et al, 2015); The presence of expansive clay minerals causes a great capacity for expansion and contraction, so they become very hard during the dry season and very sticky when wet (Brierley et al, 2011).…”

Section: Introductionmentioning

confidence: 89%