Urban vegetation cover correlates with environmental variables in a desert city: insights of mitigation measures to climate change

Ortega‐Rosas, Carmen Isela; Enciso-Miranda, Carlos Alberto; Macías‐Duarte, Alberto; Morales-Romero, Daniel; Villarruel-Sahagún, Leopoldo

doi:10.1007/s11252-020-00982-8

Cited by 10 publications

(7 citation statements)

References 47 publications

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“…Here we also observed a decrease in species richness at the closest sites to the sewage lake ( Table 1 ) that are mainly rich in stress tolerant species. This decrease in the plant cover indicates a decrease in soil health and fertility [ 52 , 53 ]. In the most contaminated site 5, there was a plant cover deterioration with a high drop in species number.…”

Section: Discussionmentioning

confidence: 99%

High Redox Status as the Basis for Heavy Metal Tolerance of Sesuvium portulacastrum L. Inhabiting Contaminated Soil in Jeddah, Saudi Arabia

et al. 2021

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Because sewage sludge is contaminated with heavy metals, its disposal in the soil may pose risks to the ecosystem. Thus, heavy metal remediation is necessary to reduce the associated risks. The goal of this research is to introduce a heavy metal resistant species and to assess its phytoremediation, oxidative damage markers and stress tolerance mechanisms. To this end, field research was done to compare the vegetation of polluted sites to that of a healthy site. We found 42 plant species identified in the study, Sesuvium portulacastrum L. was chosen because of its high relative density (10.3) and maximum frequency (100 percent) in the most contaminated areas. In particular, S. portulacastrum plants were characterized by strong Cu, Ni, and As uptake. At the organ level, to control growth reduction and oxidase damage, particularly in roots, increased detoxification (e.g., metallothionein, phytochelatins) and antioxidants mechanisms (e.g., tocopherols, glutathione, peroxidases). On the other hand, flavonoids content and the activity of glutathione-S transferase, glutathione reductase and dehydroascorbate reductase were increased manly in the shoots. These biochemical markers can be applied to select tolerance plant species grown under complex heavy metal contamination. Our findings also introduced S. portulacastrum to reduce soil contamination0associated risks, making the land resource available for agricultural production.

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Section: Discussionmentioning

confidence: 99%

High Redox Status as the Basis for Heavy Metal Tolerance of Sesuvium portulacastrum L. Inhabiting Contaminated Soil in Jeddah, Saudi Arabia

et al. 2021

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“…The plant cover has long been employed as an indication of ecosystem health in addition to a climate change and pollution tracker. Several researchers have found that as environmental changes occur on a spatiotemporal scale, vegetation cover decreases or increases [ 61 , 62 , 63 ]. which implies a healthier community in remote sites and land degradation in the vicinity of the sewage lake.…”

Section: Discussionmentioning

confidence: 99%

Heavy Metal Effects on Biodiversity and Stress Responses of Plants Inhabiting Contaminated Soil in Khulais, Saudi Arabia

Alsherif

Al-Shaikh

AbdElgawad

2022

Biology

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Accumulation of heavy metals in soil is becoming an increasingly serious eco-environmental problem. Thus, investigating how plants mitigate heavy metal toxicity is necessary to reduce the associated risks. Here, we aimed to assess the bioremediation and stress defense strategies of tolerant plant species grown under complex heavy metals contamination. To this end, a field study was conducted on the vegetation cover of sites with different soil pollution levels. Forty-two plant species that belong to 38 genera and 21 families were identified. The pollution had a significant impact on plant richness in the polluted sites. Out of several screened plants, Amaranthus retroflexus L. was selected because of its high relative density (16.7) and a high frequency (100%) in the most polluted sites. The selected species showed a high biological concentration factor (BCF) and low translocation factor (TF) for Cu, As and Ni. To control the heavy metal-induced oxidative damage, A. retroflexus invested in detoxification (metallothionein and phytochelatins, glutathione and glutathione-S-transferase (GST). At the organ level, oxidase damage (H2O2, lipid and protein peroxidation) was observed, particularly in the roots. To mitigate heavy metal oxidative stress, antioxidant mechanisms (e.g., tocopherols, glutathione, peroxidases, catalase, peroxide dismutase and ASC-GSH cycle) were upregulated, mainly in the roots. Overall, our results suggested the potentiality of A. retroflexus as a promising bioremediatory and stress-tolerant plant at the same time; moreover, defense and detoxification mechanisms were uncovered.

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“…usando datos de Landsat 8. Recientemente se calculó el %CV del bosque urbano, a nivel de Área Geoestadística Básica de Inegi (AGEB) en 6.4 por ciento, a través de fotointerpretar imágenes de alta resolución (Ortega-Rosas et al, 2020). Navarro Navarro y Moreno Vázquez (2016) encontraron que en lo que respecta a las banquetas y jardines frontales, el 58 y 77 por ciento respectivamente, poseían cinco árboles o menos por cada 100 metros lineales.…”

Section: El Estudio De Casounclassified

“…Esto ha impuesto importantes desafíos en materia de planificación urbana, dado que los gobiernos locales han tenido dificultades para mantener y expandir servicios básicos, infraestructura y equipamiento urbano (Acosta Enríquez, 2009). Entre los rezagos comunes suelen estar los espacios verdes públicos y la falta de vegetación (Bernal Grijalba, Navarro Navarro y Moreno Vázquez, 2019; Ojeda Revah y Espejel, 2014; Ortega-Rosas, Enciso-Miranda, Macías-Duarte, Morales-Romero y Villarruel-Sahagún, 2020;Peña Salmón, 2011).…”

Section: Introductionunclassified

“…Del lado mexicano se han logrado avances importantes en la generación de información académica (García-Cueto, Jáuregui Ostos, Toudert y Tejeda-Martínez, 2007;Navarro-Estupiñán, Robles Morua, Díaz Caravantes y Vivoni, 2020;Ojeda Revah y Espejel, 2014;Ortega-Rosas et al, 2020;Peña Salmón, 2011). Sin embargo, no todas las ciudades del noroeste poseen estudios comprensivos de la CV, así como datos sobre la distribución de la cobertura del bosque urbano; ni la intensidad, distribución y características del efecto de ICU.…”

Section: Introductionunclassified

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Cobertura vegetal y la distribución de islas de calor/oasis urbanos en Hermosillo, Sonora

et al. 2021

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The case of an arid Northwest city of Mexico is studied with the general objective of assessing the influence of the percentage of vegetation cover (VC) in Land Surface Temperature (LST) and mapping its spatial distribution, through a geographic information system using remote sensing data. Results showed: 1) on average, 12% (min. 0 to max. 59%) of a city block is covered with vegetation, 38% of the blocks had % VC ≤ 10; 2) the LST regression model estimated temperatures range from 37 to 45°C, the main explanatory variable was % VC, increasing % VC in 10 is associated with cooling effect of 1.1 °C. The spatial heterogeneity in the distribution of LST can be interpreted as the human effect modifying the climate on a small scale; this creates internal diurnal oasis.

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Urban vegetation cover correlates with environmental variables in a desert city: insights of mitigation measures to climate change

Cited by 10 publications

References 47 publications

High Redox Status as the Basis for Heavy Metal Tolerance of Sesuvium portulacastrum L. Inhabiting Contaminated Soil in Jeddah, Saudi Arabia

High Redox Status as the Basis for Heavy Metal Tolerance of Sesuvium portulacastrum L. Inhabiting Contaminated Soil in Jeddah, Saudi Arabia

Heavy Metal Effects on Biodiversity and Stress Responses of Plants Inhabiting Contaminated Soil in Khulais, Saudi Arabia

Cobertura vegetal y la distribución de islas de calor/oasis urbanos en Hermosillo, Sonora

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