作者: Daigard Ricardo Ortega Rodriguez , Hudson Wallace Pereira de Carvalho , Mario Tomazello-Filho
DOI: 10.1016/J.DENDRO.2018.09.009
关键词:
摘要: Abstract Tree-rings are sensitive indicators of soil chemical changes. X-ray fluorescence microanalysis (μ-XRF) can reveal the elemental distribution pattern along these rings. However, reports on quantitative μ-XRF methods targeted to wood analysis scarce. This study aimed analyze iron (Fe), manganese (Mn), calcium (Ca), potassium (K), sulfur (S) and phosphorus (P) in annual tree-rings cores cut from 24 trees 17 year-old Pinus taeda planted amended with six doses composted pulp-mill sludge (CPMS). The nutrient concentrations were accessed using calibration curves built spiked P. pellets. Calcium Mn content decreased pith bark direction; K S up 3rd tree-ring and, then, increased bark. Iron P slight 13–14th tree-ring. Calcium, presented strong positive correlation rainier hotter season (r > 0.4, p