Search results for: S. Ondoño

Items from 1 to 8 out of 8 results

article

The inorganic component of green roof substrates impacts the growth of Mediterranean plant species as well as the C and N sequestration potential

S. Ondoño, J.J. Martínez-Sánchez, J.L. Moreno

Ecological Indicators > 2016 > 61 > P2 > 739-752

Extensive green roofs substrates should meet a list of physicochemical and biochemical requirements to be used as a basis for plant growth: high water holding capacity, good aeration, low bulk density, and proper drainage are some of them. In recent years, the impact of different organic matter doses and the substrate depth on the subsequent plant growth have been deeply studied. By contrast, there...

article

The composition and depth of green roof substrates affect the growth of Silene vulgaris and Lagurus ovatus species and the C and N sequestration under two irrigation conditions

S. Ondoño, J.J. Martínez-Sánchez, J.L. Moreno

Journal of Environmental Management > 2016 > 166 > Complete > 330-340

Extensive green roofs are used to increase the surface area covered by vegetation in big cities, thereby reducing the urban heat-island effect, promoting CO₂ sequestration, and increasing biodiversity and urban-wildlife habitats. In Mediterranean semi-arid regions, the deficiency of water necessitates the use in these roofs of overall native plants which are more adapted to drought than other species...

article

Evaluating the growth of several Mediterranean endemic species in artificial substrates: Are these species suitable for their future use in green roofs?

S. Ondoño, J.J. Martínez-Sánchez, J.L. Moreno

Ecological Engineering > 2015 > 81 > Complete > 405-417

The study of the growth of several Mediterranean endemic plant species in new artificial substrates is becoming necessary for seeking alternatives in green roof design in Mediterranean regions. In this regard, we evaluated the growth of six native species on three different artificial substrates. These species were Silene vulgaris, Silene secundiflora, Crithmum maritimum, Lagurus ovatus, Asteriscus...

article

Microbiological and biochemical properties of artificial substrates: A preliminary study of its application as Technosols or as a basis in Green Roof Systems

S. Ondoño, F. Bastida, J.L. Moreno

Ecological Engineering > 2014 > 70 > Complete > 189-199

The development of artificial substrates or Technosols to be used in green roofs is increasing nowadays. Microbiological and biochemical aspects should be taken into consideration when designing an artificial substrate, to assure the quality of the chosen materials and the future plant development. Our purpose is to develop an appropriate substrate consisting of a mix of organic and inorganic residues...

article

Rainfall intensifies fruit peel cracking in water stressed pomegranate trees

A. Galindo, P. Rodríguez, J. Collado-González, Z.N. Cruz, more

Agricultural and Forest Meteorology > 2014 > 194 > Complete > 29-35

The purpose of the present study was to study the relationship between the leaf and fruit water relations of pomegranate plants at different water deficit levels during the end of the fruit growth and ripening phases. Moreover, special attention was paid to analysing whether the effect that rainfall has on peel cracking of pomegranate fruits growing in water deficit conditions is associated with changes...

article

Leaf mechanisms for drought resistance in Zizyphus jujuba trees

Z.N. Cruz, P. Rodríguez, A. Galindo, E. Torrecillas, more

Plant Science > 2012 > 197 > Complete > 77-83

No information exists on the mechanisms developed at the level of leaf water relations by pear-jujube trees (Zizyphus jujuba Mill.) to confront drought. For this reason, the purpose of the present study was to analyse its leaf water relations in order to clarify the resistance mechanisms (avoidance and tolerance) developed in response to a water stress and during recovery. Field-grown 7-year-old pear-jujube...

article

Thermal and mechanical effects on the properties of YBa ₂ Cu ₃ O ₇ _- _δ deposits obtained by electrodeposition of precursors in presence of cyanide

N. Casañ-Pastor, S. Ondoño-Castillo

Physica C: Superconductivity and its applications > 1997 > 276 > 3-4 > 251-258

Electrodeposition of yttrium, barium and copper in metallic state from DMSO (dimethylsulfoxide) solutions containing cyanide as complexing agent for copper leads to the preparation of YBa ₂ Cu ₃ O ₇ _- _δ directly over metallic substrates. Superconducting properties on coatings obtained by this procedure showed the largest T _c and J _c obtained to date...

article

Deposition of YBa ₂ Cu ₃ O ₇ _- _δ over metallic substrates by electrophoresis of suspensions in isobutylmethylketone. Influence of electric field, thermal and mechanical treatments

S. Ondoño-Castillo, N. Casañ-Pastor

Physica C: Superconductivity and its applications > 1996 > 268 > 3-4 > 317-333

Superconducting YBa ₂ Cu ₃ O ₇ _- _δ coatings have been prepared over metallic wires, plates and other complex shape articles by electrophoresis of suspensions in isobutylmethylketone. Further annealing in a controlled atmosphere and the chemical identity of the metallic substrate are determinant parameters influencing the superconducting properties observed. Silver metal...

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