Legacies of past forest management determine current responses to severe drought events of conifer species in the Romanian Carpathians

Hereş, Ana‐Maria; Petriţan, Ion Cătălin; Bigler, Christof; Curtu, Alexandru Lucian; Petrea, Ştefan; Petriţan, Any Mary; Polanco-Martínez, Josué M.; Rigling, Andreas; Yuste, Jorge Curiel

doi:10.1016/j.scitotenv.2020.141851

Cited by 18 publications

(9 citation statements)

References 52 publications

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“…The arithmetic mean of tree ring width were 3.40 ± 0.97 mm/year (2.09-6.43 mm/year), for residual chronology was calculated a mean rbar and EPS of 0.24 and 0.86. Tree rings statistics show the sustained growth of trees investigated compared with managed stands from south Romania [63] and comparable results with Pinus sp. growing in the lower limit of the optimum [14].…”

Section: Tree Ring and δ 18 O Tr And δ 13 C Trsupporting

confidence: 62%

A Tree Ring Proxy Evaluation of Declining Causes in Pinus sylvestris L. and Pinus nigra J.F. Arnold in Northeastern Romania

Nechita

Iordache

Costinel

et al. 2022

Forests

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Drought-induced dieback has been extensively studied in various forests habitats. We used a retrospective tree ring width (TRW), basal area increment (BAI), oxygen isotope ratios in tree ring cellulose (δ18OTR) and carbon isotope ratios in tree ring cellulose (δ13CTR) to assess causes in declining Pinus sylvestris L. and Pinus nigra J.F. Arnold. The climate data analysis indicates a significant increased trend occurred after 1980 in minimum, mean and maximum temperature and a reduced amount of precipitation compared to the 1920–1980-time scale. According to the Palmer Drought Severity Index, we found two extreme drought years (1946 and 2000) and three years with severe drought (1990, 2003 and 2012). One-way ANOVA indicated no significant difference between P. nigra and P sylvestris tree ring width, basal area increment, but a considerable difference between δ13CTR and δ18OTR. Basal area increment evaluated the climate-growth relationship most accurately, comparing to δ18OTR and δ13CTR, which explained the influences of environmental factors in tree rings formation. The δ13CTR was mainly negatively correlated with high temperatures from April-August current growing seasons. The negative correlation between δ13CTR and NDVI indices (June, August) shows a decreased carbon uptake induced by drought from summer to early autumn. The low δ18OTR signal was associated with a complex of factors, including the strong influence of heavy precipitation occurring in the growing season and a weak reaction of declined trees to resources. Species-specific responses to drought in 1990, 2003 and 2012 indicated P. sylvestris as more sensitive to drought whit higher demand for water supply in the optimal compared with P. nigra. Weak and unstable correlations in time with increasing/decreasing values in drought periods were obtained more accurately using δ18OTR compared to δ13CTR. The species-specific resilience response to drought years showed a weak resilience and resistance in P. sylvestris occurred more evident after the 2012 event compared to less sensitive P. nigra trees. Decision-makers can use presented results to reinforce specific management plans capable of protecting and changing local compositions where is the case with species more resistant to drouth.

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Section: Tree Ring and δ 18 O Tr And δ 13 C Trsupporting

confidence: 62%

A Tree Ring Proxy Evaluation of Declining Causes in Pinus sylvestris L. and Pinus nigra J.F. Arnold in Northeastern Romania

Nechita

Iordache

Costinel

et al. 2022

Forests

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“…Motivated by the trade-offs described above, many primary studies have already outlined the effects of forest management practices on forest health and functioning (recent examples are for instance Hereş et al, 2021;Lázaro-Lobo et al, 2022;Leuschner et al, 2022;Naudts et al, 2016;Perring et al, 2018). These studies provide highly valuable insights into the possible consequences of management choices, but implementation of their results by practitioners and policy-makers is, in part, limited by increases in the volume of primary research and the scope of primary studies (Haddaway et al, 2018;Joanna Briggs Institute, 2014).…”

Section: Systematic and Umbrella Reviewsmentioning

confidence: 99%

Effects of forestry practices on the conservation of soil and forest ecosystem health and functioning: an umbrella review protocol

Moreaux¹,

Martin²,

Hereş³

et al. 2022

Preprint

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Background: Forests host a majority of the world’s terrestrial biodiversity and provide habitats and numerous resources, making them a vitally important ecosystem for plants, animals and humans alike. However, forest ecosystems are continuously lost under pressures such as land use change and fragmentation, logging activities and climate change. Timber and other forest resources are in high demand, so different economic and environmental interests lead to conflicts between resource extraction and biodiversity conservation. Nonetheless, forest management practices differ in their intensity and conclusively in their impacts on forest ecosystem health. Although various evidence syntheses have been conducted for specific forestry practices or geographic regions, a global overview of these impacts is still lacking. We use an umbrella review of existing evidence syntheses to fill this knowledge gap and to provide a basis for designing better informed forest management strategies and policies. We address the research questions: 1. How do different forestry practices affect the conservation of soil and forest ecosystem health and functioning? 2. Which evidence synthesis gaps exist with regards to the effects of forestry practices on forest and soil health? and 3. What is the quality and reliability of evidence from existing meta-analyses and syntheses on impacts of forestry practices on forest and soil health?Methods: The review will be conducted using a standardised methodology for systematic reviews. We use relevant keywords on forest management and forest health to construct search strings for multiple published and grey literature databases. Inclusion criteria require that studies are meta-analyses reporting a quantitative effect size, focus on forest ecosystems, assess the effect of pre-defined forest management practices on pre-defined forest health indicators at different levels of intensity, and that the full manuscript is written in English. Relevant evidence syntheses are identified, collected and their quality critically appraised. A pre-defined list of data is extracted from the manuscripts into a global dataset, with a particular focus on the effect size and measures of heterogeneity. Finally, data synthesis will focus on narrative, tabular, and graphic summaries of the dataset to answer the research questions, highlight evidence gaps and make recommendations for future reviews, policies and decision-making.

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“…We conducted heat map analyses based on rolling window correlations (the bi-variate case) to evaluate the evolution and stability of tree-growth-climate relationships, i.e., between the RWIresidual series and the seasonal climatic variables (Psprsum, Psum, Tsum, Twinter, TMay; Table 2), over time and Martínez, 2020Martínez, , 2021. Specifically, we used t to run rolling window correlations between the RWIresidual series and the above mentioned seasonal climatic variables (i.e., two-time series that had identical time points, as required; Polanco-Martínez, 2020).…”

Section: Statistical Analysesmentioning

confidence: 99%

“…All nine study sites are located in the Romanian Carpathians, in the ov region, at elevations that vary from 456 m to 1250 m a.s.l (Curiel Yuste et al, et al, 2021…”

mentioning

confidence: 99%

The stationary and non-stationary character of the silver fir, black pine and Scots pine tree-growth-climate relationships

Hereş

Polanco-Martínez

Petritan

et al. 2022

Agricultural and Forest Meteorology

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Legacies of past forest management determine current responses to severe drought events of conifer species in the Romanian Carpathians

Cited by 18 publications

References 52 publications

A Tree Ring Proxy Evaluation of Declining Causes in Pinus sylvestris L. and Pinus nigra J.F. Arnold in Northeastern Romania

A Tree Ring Proxy Evaluation of Declining Causes in Pinus sylvestris L. and Pinus nigra J.F. Arnold in Northeastern Romania

Effects of forestry practices on the conservation of soil and forest ecosystem health and functioning: an umbrella review protocol

The stationary and non-stationary character of the silver fir, black pine and Scots pine tree-growth-climate relationships

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