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| Registros recuperados: 10 | |
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| Mancilla Villalobos,Rodrigo; Zúñiga,Jimena; Salgado,Eduardo; Schiappacasse,Maria Cristina; Chamy Maggi,Rolando. |
| Background: Constructed wetlands are a promising, cheap and effective wastewater treatment in small communities. The studies on these systems have been reported mainly from cold, tropical or subtropical climate regions. In this work we constructed a pilot plant with six horizontal subsurface flow constructed wetlands (HSSF CWs) with a surface area of 2 m² and a depth of 0.6 m each, planted with Typha latifolia or Scirpus sp., and filled with gravel (G) or fine gravel (FG) of 2.8 and 1.2 cm of diameter respectively, continuously fed with raw domestic wastewater. This experimental setup was evaluated over 280 days for the removal of organic matter and nutrients in a Mediterranean climate, near Valparaíso, Chile. The removal of total COD, NH4+-N and PO4-3-P... |
| Tipo: Journal article |
Palavras-chave: Constructed wetlands; Domestic wastewater treatment; Horizontal subsurface flow system; Mediterranean climate. |
| Ano: 2013 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582013000400005 |
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| RAMÔA,S.; SILVA,P. OLIVEIRA e; VASCONCELOS,T.; FORTES,P.; PORTUGAL,J.. |
| ABSTRACTThe conclusion of the dam project located in Alqueva, in Southern Portugal, has resulted in a significant increase of new irrigated areas, since 2006. This has meant that, in recent years, there have been progressive flora changes in farming systems traditionally implemented in the Alentejo region. The present work has analyzed the weed flora in an early stage of these changes, and the impact of environmental factors on the distribution of natural vegetation under Mediterranean climate conditions in the influence area of Alqueva. In 2007, 105 floristic surveys were carried out in autumn-winter crop plots or other soil use, and 264 species were identified. Families with higher expression were: Asteraceae, Poaceae, and Fabaceae. Only three species... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Spontaneous flora; Mediterranean climate; Ecological profiles; Active factors; Texture; Extractable phosphorus. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582015000300387 |
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| TORRES-MELLADO,GUSTAVO A; ESCOBAR,INELIA; PALFNER,GOTZ; CASANOVA-KATNY,M. ANGÉLICA. |
| The five known genera of Gilliesieae have their diversity center in the Mediterranean zone of central Chile, where many of their habitats are threatened by urban expansion, industrial and agroforestry activities, as well as other anthropogenic impacts. Very little is known about the biology of these particular geophytes, the majority of which currently have either vulnerable or endangered status, mainly due to their dispersed and small populations generally associated to remnants of native vegetation. As mycorrhizal associations are essential for soil resource acquisition and stress mitigation in most plants, our objective was to assess the hitherto unknown mycotrophic status of ten species of Gilliesieae from central Chile by qualitative and quantitative... |
| Tipo: Journal article |
Palavras-chave: Endangered species; Glomeromycota; Latitudinal transect; Mediterranean climate; Monocotyledoneae. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2012000200004 |
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| Peredo P,Santiago F; Parada Z,Esperanza; Vega C,Marcela; Barrera S,Claudia P. |
| The aim of the present study was to determine and compare taxa richness, abundance and diversity of the edaphic mesofauna community between plantations of cranberries (Vaccinium sp.) subjected to organic and conventional management in farms in central-south Chile (37°28'S), as also to evaluate changes produced in their diversity and abundance diversity and abundance, as result of the change from conventional to organic management. In July 2006 two farms were chosen, one with one year under organic management (OM1) and a second one under six years of certified organic management (OM6). Each farm was divided in four quadrants, each one with a surface of 2,500 m . In each quadrant was extracted one sample with six replicas of 188.5 cm³ each. Samples were... |
| Tipo: Journal article |
Palavras-chave: Edaphic mesofauna; Organic farming; Conventional farming; Vaccinium sp; Mediterranean climate. |
| Ano: 2009 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-27912009000300006 |
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| Ben Nasr, Rima; El Melki, Mohamed Nejib; El Moueddeb, Khaled; Kairouani, Lakdhar. |
| Cereal quality preservation is traditionally the accountability of grain storekeepers who count on profound knowledge discovered through scientific research. The main purpose of this research study was to predict the evolution of wheat temperature in unaerated silo during storage period under Tunisia climate. First, a bidimensional mathematical combined model (silo wall model + heat transfer model in grain bulk), which describes the distribution of the unsteady temperature in a cylindrical grain storage system, was presented and simulated using the parabolic solver incorporated in the Matlab 2015a environment. Mesh refinement at the shortest boundaries, including triangular elements, was adopted to simulate storage temperatures. In this numerical model,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Grain storage; Grain temperature; Wheat; Numerical study; Experimental study; Mediterranean climate. |
| Ano: 2021 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/7137 |
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| Morales,Pamela; Schiappacasse,Flavia; Peñailillo,Patricio; Yañez,Paola. |
| Bulb weight or size is one of the critical factors affecting the vegetative growth and flowering of bulbous species. This study assessed the effect of bulb weight on the growth and flowering of Herbaria lahue subsp. lahue. This bulbous species, commonly known as "lahue," has the potential to be used as an ornamental plant. Lahue bulbs were collected during their dormant period from Tregualemu (Region del Maule), grouped by weight categories and planted in Talca in an unheated polyethylene greenhouse. Phenology data, flowering characteristics and the number of newly formed bulbs were recorded for one season. Plants emerged 2-3 weeks after planting and flowered during the spring, between 8 and 9 months after planting. During fruit set, the leaves began their... |
| Tipo: Journal article |
Palavras-chave: Chilean bulbs; Geophyte; Mediterranean climate. |
| Ano: 2009 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202009000200010 |
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| Registros recuperados: 10 | |
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