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Soil moisture on emergence and initial development of Bidens pilosa. Repositório Alice
MAULI, M. M.; NÓBREGA, L. H. P.; SOUZA FILHO, A. P. da S.; MENEGHETTI, A. M.; ROSA, D. M.; TONINI, M..
Some species are used as cover crops, so they can produce and release products from their secondary metabolism. When these products are released in the environment, they are exposed to direct or indirect influences. Thus, this trial aimed to evaluate the influence of soil moisture content in plant decomposition, possibly caused by allelochemicals release. The influence of soil field capacity was evaluated by the decomposition of black oats (Avena strigosa Schreb), turnip (Vicia villosa Roth) and hairy vetch (Raphanus sativus L.) residues, with 70 and 50% of water availability and the control. Pots (1.0 kg) were filled with sterilized and unsterilized soil, plus 30 g of plant residue, which remained in decomposition for four weeks before the experiment...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Aleloquímico; Umidade do Solo; Bidens Pilosa; Erva Daninha.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1095336
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Variations in Amazonian forest canopy structure and light environments across environmental and disturbance gradients. Repositório Alice
SMITH, M. N.; SCHITTI, J.; GONÇALVES, N.; MINOR, D.; ALMEIDA, D. R. A. de; ROCHA, D. G.; ARAGÓN, S.; MENIN, M.; GUEDES, M. C.; TONINI, H.; SILVA, K. E. da; ROSA, D. M.; NELSON, B. W.; CORDEIRO, C. L. O.; OLIVEIRA JUNIOR, R. C. de; SHAO, G.; SOUZA, M. S.; MCMAHON, S.; ALMEIDA, D.; ARAGÃO, L. E. O. C.; LIMA, N. Z. de; OLIVEIRA, G. de; ASSIS, R. L. de; CAMARGO, J. L.; MESQUITA, R. G.; SALESKA, S. R.; BRESHEARS, D. D.; COSTA, F. R. C.; STARK, S. C..
A critical problem in tropical forest ecology is understanding how vegetation structure and function vary over environmental gradients. The degree to which forest structure changes across the Amazon basin and the role of environmental variability in shaping forest structure and dynamics are poorly characterised, despite the importance of these forests for regional and global climate. To address these challenges, we connected 10 years of investigations to amass a large database of ground-based profiling canopy lidar (PCL) data from 297 Amazon forest plots across large-scale environmental and disturbance gradients. Mean annual precipitation varied from 1,963 to 3,159 mm, number of dry season months from 0 to 5, and plot soil types covered about half of the...
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Ecologia Florestal; Floresta Tropical; Climatologia; Forest ecology; Tropical forests; Climatology.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1120215
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