Distribution of rainwater by species of caatinga vegetation
| Autor: | José Augusto da Silva Santana, Ane Cristine Fortes da Silva, Patrícia Carneiro Souto, José Adeilson Medeiros do Nascimento, Jacob Silva Souto |
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| Rok vydání: | 2018 |
| Předmět: |
Hydrology
Canopy Stemflow biology Rain gauge 0208 environmental biotechnology 04 agricultural and veterinary sciences 02 engineering and technology Vegetation biology.organism_classification Throughfall 020801 environmental engineering 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Environmental science Precipitation Interception General Agricultural and Biological Sciences Cnidoscolus quercifolius |
| Zdroj: | African Journal of Agricultural Research. 13:2239-2248 |
| ISSN: | 1991-637X |
| Popis: | This study aimed to estimate the redistribution of rainfall in a Caatinga vegetation fragment of about 50 years in fallow system, in late stage of regeneration. To quantify the throughfall, rainfall collectors were installed in six individuals of the species Croton blanchetianus, Mimosa tenuiflora, Cnidoscolus quercifolius, Aspidosperma pyrifolium and Poincianella bracteosa, totaling 30 rainfall collectors. For the stemflow, collecting system set around the stems of the six subjects in each of the five selected species was used, consisting of collecting gutters in a spiral. In addition, a rain gauge was installed in an open location to quantify the open precipitation, which during the study period was equal to 1173.56 mm. The C. quercifolius species had the highest average of throughfall; probably this may be related to the peculiarities in relation to architecture and canopy shape. The stemflow has lower shares in gross precipitation in A. pyrifolium and C. quercifolius species, representing 15.25 to 12.48% of the total rainfall, respectively. The values obtained for the interception losses were greater than 60% in all species. Key words: Forestal hydrology, throughfall, stemflow. |
| Databáze: | OpenAIRE |
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