INTERANNUAL VARIATION IN THE PHENOLOGICAL BEHAVIOR OF TWO NATIVE TREE SPECIES IN ALLUVIAL FOREST

Q4 Environmental Science

Floresta Pub Date : 2022-03-31 DOI:10.5380/rf.v52i2.72885

J. D. F. Milani, C. V. Roderjan, R. Kersten, F. Galvão, E. Amano, Denize Beatriz Jantsch

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引用次数: 0

Abstract

The vegetative (senescent leaf, mature leaf and budding) and reproductive (bud, anthesis, unripe fruit and ripe fruit) phenological behavior of Gymnanthes klotzschiana (Euphorbiaceae) and Blepharocalyx salicifolius (Myrtaceae) were evaluated for 5 years in a fragment of Alluvial Mixed Ombrophilous Forest in southern Brazil, by the intensity index, seeking to answer the following questions: (i) Do phenological events follow an annual pattern or is there variation over the period? (ii) Which meteorological variables, among temperatures (minimum, mean and maximum) and precipitation, influence the phenophases? Phenological data were correlated with precipitation and minimum, mean and maximum temperatures of the study period. Variations in the intensity of the phenophases were detected between the years analyzed. Correlations with temperatures were identified for some phenophases during the study period. The species showed similar phenological behavior in vegetative phenophases, but variations in the intensity of the phenophases were detected between the years analyzed, which may be responses to annual temperature and precipitation variations. With the obtained data of correlation between the phenophases and the meteorological variables, it was possible to conclude that different meteorological signals are felt by the plants to express their phenophases. It seems that there is a tendency for temperatures to be an important factor that regulates plant phenology, but that the monitoring period may also influence these factors

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冲积林两种原生树种物候行为的年际变化

在巴西南部的一片冲积混合暗生林中，用强度指数对klotzschiana（大戟科）和Blepharocalyx salicifolius（肉豆蔻科）的营养（衰老叶、成熟叶和出芽）和生殖（芽、花、未成熟果和成熟果）的酚学行为进行了5年的评价，试图回答以下问题：（i）酚类事件是否遵循年度模式，或者在这一时期是否存在变化？（ii）在温度（最低、平均和最高）和降水量中，哪些气象变量会影响表型？表型数据与研究期间的降水量和最低、平均和最高温度相关。在分析的年份之间检测到了表型强度的变化。在研究期间，确定了一些表型阶段与温度的相关性。该物种在营养表型中表现出相似的表型行为，但在分析的年份之间检测到表型强度的变化，这可能是对年温度和降水变化的响应。根据所获得的表型与气象变量之间的相关性数据，可以得出结论，植物感受到不同的气象信号来表达它们的表型。似乎有一种趋势，温度是调节植物表型的一个重要因素，但监测期也可能影响这些因素

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来源期刊

Floresta Environmental Science-Nature and Landscape Conservation

CiteScore

0.80

自引率

0.00%

发文量

期刊介绍： Revista Floresta admits articles of scientific contribution in Forest Science, in the areas of Nature Conservation, Economy and Forest Policy, Forest Management, Silviculture and Wood Technology. The main task is to promote and divulgate the development of Forest Science in Brazil and in the world. Articles published in Revista Floresta are under total responsibility of the authors, who are aware that they are original studies. It remains implicit that articles were not submitted for publication to any other divulgation media. It remains explicit the agreement of authors to norms of the journal and, along the development of their work, the observance of ethic aspects and respect of the current copyright legislation.