Soil erosion from urbanization processes in the Sonoran Desert, Arizona, USA

Jeong, Ara; Dorn, Ronald I.

doi:10.1002/ldr.3207

Cited by 59 publications

(40 citation statements)

References 54 publications

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“…Soil degradation is one of the major abiotic threats in the Sonoran Desert, due to wind and water erosion that result in the removal of the BSC, which contains the majority of the microbial life crucial for plant-microbe association (Jeong and Dorn, 2019). It is challenging to restore the degraded soil areas by simple traditional means such as implanting seeds and supplying water.…”

Section: The North American Desertsmentioning

confidence: 99%

Desert Microbes for Boosting Sustainable Agriculture in Extreme Environments

2020

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A large portion of the earth's surface consists of arid, semi-arid and hyper-arid lands. Life in these regions is profoundly challenged by harsh environmental conditions of water limitation, high levels of solar radiation and temperature fluctuations, along with soil salinity and nutrient deficiency, which have serious consequences on plant growth and survival. In recent years, plants that grow in such extreme environments and their naturally associated beneficial microbes have attracted increased interest. The rhizosphere, rhizosheath, endosphere, and phyllosphere of desert plants display a perfect niche for isolating novel microbes. They are well adapted to extreme environments and offer an unexploited reservoir for bio-fertilizers and bio-control agents against a wide range of abiotic and biotic stresses that endanger diverse agricultural ecosystems. Their properties can be used to improve soil fertility, increase plant tolerance to various environmental stresses and crop productivity as well as benefit human health and provide enough food for a growing human population in an environment-friendly manner. Several initiatives were launched to discover the possibility of using beneficial microbes. In this review, we will be describing the efforts to explore the bacterial diversity associated with desert plants in the arid, semi-arid, and hyper-arid regions, highlighting the latest discoveries and applications of plant growth promoting bacteria from the most studied deserts around the world.

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Section: The North American Desertsmentioning

confidence: 99%

Desert Microbes for Boosting Sustainable Agriculture in Extreme Environments

2020

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“…Urban sprawl of PMR over the period from 1912 to 2010 shows the dam watersheds have experienced a wide range of land-use changes. Sediment yield data associated with the urban sprawl was reported by Jeong and Dorn (2019). The data used to estimate sediment accumulation behind 22 main dams in PMR using extrapolation.…”

Section: Study Areamentioning

confidence: 99%

“…FCS in PMR was designed to provide a total cumulative sediment storage capacity for 50 years or 100 years of sediment storage (USDA-SCS 1977, USACE 1981, 1982, 1984a, 1984b, EMNRCD and FCDMC 2013 Figure 4 illustrates the conceptual model used here to quantify LULCC-related parameters using GIS procedures. Urbanization processes entail exposure of bare ground due to construction, that then accelerates soil erosion by enhancing rain splash and overland flow (Jeong and Dorn 2019). To estimate the magnitude of bare ground exposure or urban growth during the time period from T1 to T2 (BG1 in figure 4), the area of intersection of natural land cover in T1 and urban land cover in T2 was calculated using GIS.…”

Section: Model 1: Sediment Yield Prediction Under a Condition Withoutmentioning

confidence: 99%

“…However, lesser developed RUDC settings in Africa, Middle East, India, and Asia typically lack such data. Based on a global data compilation of sediment yield in warm deserts (the Köppen-Geiger BWh climate setting) by Jeong and Dorn (2019) and Vanmaercke et al (2014), only eleven published data points exist for urban settings outside of the USA (supplemental table 1 is available online at stacks.iop.org/ERL/14/ 125005/mmedia); all other measurements are from agricultural fields or grazing lands. Thus, the focus of this paper rests in establishing a new desired outcome for engineering FCS in growing desert cities that largely lack empirical data on sediment yields.…”

Section: Introductionmentioning

confidence: 99%

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Sediment accumulation expectations for growing desert cities: a realistic desired outcome to be used in constructing appropriately sized sediment storage of flood control structures

Jeong

2019

Environ. Res. Lett.

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Many rapidly urbanizing desert cities (RUDC) around the globe experience an acute risk of flooding. To reduce this risk, properly engineered flood control structures (FCS) must account for sediment accumulation as well as flood waters. While the Phoenix area, USA, uses regional data from nonurban, non-desert watersheds to generate sediment yield rates, the proposed desired outcome for RUDCs is to base FCS on data related to urbanization. Wolman (1967 Geogr. Ann. A 49 385-95) recognized that sediment yields spike during a relatively short period of bare-ground exposure associated with urban growth, followed by surface sealing resulting in a great reduction in sediment yield. This research presents a new analysis of empirical data where two regression models provide estimates of a more realistic sediment accumulation for arid regions and also urbanization of a desert cities: (i) linear regression between drainage area and sediment yield based on a compilation of more than 150 global sediment yield data for warm desert (BWh Köppen-Geiger) climate; and (ii) linear regression relating percent urban growth with sediment yield using available data on urbanizationgenerated sediment associated with growth of a desert city. The new model can be used to predict the realistic sediment accumulation for helping provide data where few data exists in urbanizing parts of arid Africa, southwest Asia, and India.

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“…Once there is a breakdown of soil aggregates, this activity facilitates the removal of elements, minerals, and organic materials that plants use as nutrients. Even if soil erosion is mostly linked to agricultural areas (Faucette et al., ), the occurrence of erosion in forested areas after fires, or from road and railway embankments and mining areas is high, and will also be harmful in terms of the loss of nutrients needed to maintain plant communities (Cao, Chen, Gao, Chen, & Yan, ; Cerdà et al., ; Jeong & Dorn, ; Salesa & Cerdà, ).…”

Section: Introductionmentioning

confidence: 99%

Jute bioblanket as a soil rehabilitation strategy in Sorocaba, Brazil: Soil chemistry and SWOT approaches

Silva

Tsuchiya

Mendes

et al. 2019

Environmental Quality Mgmt

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Soil erosion and the invasion of exotic plant species are major constraints to achieve sustainable development around the world. Currently, we find few products devoted concomitantly to combatting soil erosion as well as the establishment of unwanted exotic plants. In this paper, we introduce a new product, called herein a bioblanket, that protects the soil and impedes the establishment of exotic plant species. This product is of simple design, and to manufacture it, we use two biodegradable materials: jute tissue and grass wastes. We designed this product to combat soil erosion and the germination and establishment of new, unwanted, invasive plant species. In this paper, we describe our evaluation of how successful this product was in terms of improving the chemical attributes of soil. We also identified the product's potentialities and weaknesses by means of strengths, weaknesses, opportunities, and threats (SWOT) analysis. The bioblanket ameliorated the chemical attributes of the soil, as evidenced especially by the neutralization of acidity (8.5%) and aluminum toxicity (33%), and by an increment in nutrients concentration. We argue that after adequate treatment and management, the residues of plants that are normally considered unwanted materials can be transformed into a raw material to control the propagation of unwanted plant species, and concomitantly control soil erosion while improving the chemical conditions of the soil. The improvement of the soil chemical attributes was one of the main positive effects reported through the SWOT analysis. In addition, the SWOT analysis revealed some features that need improvement in future generations of the product, but we argue that these features do not impede the benefits for the use of the product in its present form.

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Soil erosion from urbanization processes in the Sonoran Desert, Arizona, USA

Cited by 59 publications

References 54 publications

Desert Microbes for Boosting Sustainable Agriculture in Extreme Environments

Desert Microbes for Boosting Sustainable Agriculture in Extreme Environments

Sediment accumulation expectations for growing desert cities: a realistic desired outcome to be used in constructing appropriately sized sediment storage of flood control structures

Jute bioblanket as a soil rehabilitation strategy in Sorocaba, Brazil: Soil chemistry and SWOT approaches

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