Management of Industrial Forest Plantations

Gonçalves, José Leonardo de Moraes; Silva, Luciana Duque; Behling, Maurel; Álvares, Clayton Alcarde

doi:10.1007/978-94-017-8899-1_4

Cited by 8 publications

(1 citation statement)

References 44 publications

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“…In response to increased societal demand for wood products (FAO 2016), the application of intensive management practices within forests has become commonplace throughout the world (Carle and Holmgren 2008, Paquette and Messier 2010, Rodriguez et al 2014. Such practices include shortened rotation length, planting of genetically improved trees, and the use of herbicides to control competing vegetation, among others (de Moraes Goncalves et al 2014). Of these, the use of herbicides has the greatest potential to reduce the quality of regenerating forest because herbicides typically alter the composition and structure of early seral forest vegetation (Shepard et al 2004, Balandier et al 2006, Wagner et al 2006, and their use can lead to a truncation of the early seral period (Swanson et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Neither forest herbicides nor ambient temperature exert strong effects on reproductive output of a cavity-nesting songbird

Rivers¹,

Jones²,

Betts³

2020

ACE

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Land management may combine with air temperature to influence the persistence of animal populations, so both must be evaluated in concert to understand how populations respond to increased forest management intensity and projected climate change. We used a large-scale study that experimentally manipulated herbicide application intensity within regenerating forests to test how herbicide-mediated changes in temperature influenced three components of reproductive output in the House Wren (Troglodytes aedon): nest survival, the number of offspring produced, and nestling body condition. We found no evidence for a consistent herbicide treatment effect on any reproductive measure, although our power to detect effects was modest. Relative to unsprayed controls, nest survival was lowest in the light herbicide treatment, and this measure increased on sites that were subjected to greater herbicide application (i.e., at moderate and intensive herbicide treatments), against our predictions. We also detected no evidence of a temperature effect singly or in combination with herbicide application on wren reproductive output. Although herbicide intensity was more influential on reproductive output than was temperature, we found that neither exerted strong effects in regenerating conifer forests. Given the dearth of studies that combine evaluations of temperature and land management impacts on songbird reproductive output, we suggest researchers continue to expand our understanding of the relative influence of both drivers simultaneously to better formulate conservation strategies in light of expected changes in climate and a heightened global demand for wood products. Ni les herbicides forestiers ni la température ambiante n'ont d'effets importants sur le succès reproducteur d'un passereau cavicoleRÉSUMÉ. L'effet combiné des pratiques d'aménagement forestier et de la température de l'air pourrait influer sur la pérennité des populations animales, de sorte qu'on doit les évaluer de concert si on veut comprendre comment les populations réagissent aux pratiques forestières de plus en plus intenses et aux changements climatiques prévus. Nous avons utilisé une étude à grande échelle dans laquelle l'intensité de l'application d'herbicides dans les forêts en régénération a été manipulée afin de tester de quelle façon les changements de température induits par les herbicides influaient sur trois paramètres du succès reproducteur du Troglodyte familier (Troglodytes aedon) : la survie au nid, le nombre d'oisillons produits et la condition physique des oisillons. Nous n'avons pas constaté d'effet régulier d'un traitement aux herbicides sur les paramètres de reproduction examinés, bien que notre capacité à détecter les effets ait été modeste. Comparativement aux sites témoins sans arrosage, la survie au nid était le plus faible sous le traitement léger aux herbicides, et a augmenté aux sites sur lesquels davantage d'herbicides avaient été appliqués (c.-à-d. dans les traitements modéré et élevé aux herbicides), à l'encontre de nos attentes. D...

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Section: Introductionmentioning

confidence: 99%

Neither forest herbicides nor ambient temperature exert strong effects on reproductive output of a cavity-nesting songbird

Rivers¹,

Jones²,

Betts³

2020

ACE

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Teak Plantations and Wood Production

Sandeep

2021

Compendium of Plant Genomes

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Climatic favourability zones for Eucalyptus rust in Brazil

et al. 2016

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Brazilian forest-based industries are supported by more than 5.5 million hectares of Eucalyptus growing under different climatic conditions with different degrees of favourability for rust Puccinia psidii, including both traditional and expanding areas, where such disease is of major concern for the industry, foresters and scientists. The main objective of this study was to define favourable climatic zones for Eucalyptus rust in Brazil with the following aims: (i) to develop a spatial method for estimating the mean night-time temperature (T ng ); (ii) to assess and validate a Eucalyptus rust model;and (iii) to map Eucalyptus rust favourability zones in Brazil based on the proposed model. A straightforward method, based only on latitude, day of the year, maximum and minimum air temperatures, was developed to estimate T ng , which is a key variable for a proper application of Ruiz rust model. Based on 37 field experiments with natural rust occurrence, it was observed that climatic conditions are determining factors for disease severity. Significant correlations between disease severity observed in the field and climatic conditions were found: a negative correlation with temperature (r = .50, p < .01) and a positive correlation with relative humidity (r = .89, p < .0001). A significant correlation (r = .81, p < .0001) between the normalized infection index, produced from Ruiz model, and the average rust score was also observed. Once the model was validated under field conditions, it was applied using historical average data of air temperature and leaf wetness duration to obtain monthly Eucalyptus rust favourability maps for the whole country. These final maps show that favourable climatic zones for Eucalyptus rust are extremely dynamic, with high temporal and spatial variability in Brazil and that climatic conditions should be considered for expansion of Eucalyptus to new areas, in breeding programmes, and for defining the most suitable seasons for forest establishment in each climate of the country. These results provide forestry managers with practical tools to reduce uncertainty about the expected severity of Eucalyptus rust in Brazil.

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Management of Industrial Forest Plantations

Cited by 8 publications

References 44 publications

Neither forest herbicides nor ambient temperature exert strong effects on reproductive output of a cavity-nesting songbird

Neither forest herbicides nor ambient temperature exert strong effects on reproductive output of a cavity-nesting songbird

Teak Plantations and Wood Production

Climatic favourability zones for Eucalyptus rust in Brazil

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