|
|
|
|
|
| Trovó, M.; Echternacht, L.; Sano, P.T.. |
| We describe and illustrate Paepalanthus sphaeroides (Eriocaulaceae, Paepalanthoideae) from the Mantiqueira Range in South-eastern Brazil and compare it with the morphologically most similar species: Paepalanthus aequalis and Paepalanthus eriophaeus. Paepalanthus sphaeroides has unique membranaceous sheaths tightly adpressed to the scapes, patent involucral bracts slightly surpassing the capitula, and sepals of the staminate flowers fused from the base to the middle as distinctive characteristics. Comments on morphological variation, geographical distribution, ecology, conservation status, as well as a distribution map, line drawings, and photos are provided. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Conservation; Mantiqueira Range; Minas Gerais; Paepalanthoideae; São Paulo. |
| Ano: 2012 |
URL: http://www.repository.naturalis.nl/record/525840 |
| |
|
|
| Mello,Carlos Rogério de; Ávila,Léo Fernandes; Norton,Lloyd Darrell; Silva,Antônio Marciano da; Mello,José Márcio de; Beskow,Samuel. |
| Soil water content is essential to understand the hydrological cycle. It controls the surface runoff generation, water infiltration, soil evaporation and plant transpiration. This work aims to analyze the spatial distribution of top soil water content and to characterize the spatial mean and standard deviation of top soil water content over time in an experimental catchment located in the Mantiqueira Range region, state of Minas Gerais, Brazil. Measurements of top soil water content were carried out every 15 days, between May/2007 and May/2008. Using time-domain reflectometry (TDR) equipment, 69 points were sampled in the top 0.2 m of the soil profile. Geostatistical procedures were applied in all steps of the study. First, the spatial continuity was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mantiqueira Range; Soil water content mapping; Soil hydrology; Geostatistical techniques. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000300003 |
| |
|
|
|
