Stakeholders’ Perspectives of Species Diversity in Tree Plantations: a Global Review

Cagnoni, Leticia Bulascoschi; Weidlich, Emanuela W. A.; Guillemot, Joannès; Morselo, Carla; Weih, Martin; Adler, Anneli; Brancalion, Pedro H. S.

doi:10.1007/s40725-023-00194-1

Cited by 4 publications

(2 citation statements)

References 69 publications

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“…While CBM-CFS3 could not capture such processes, the simulated scenarios (decided by local stakeholders) that sequestered the highest amount of ecosystem carbon after 100 years were based on species mixtures that could adapt to competitive, low-maintenance, and open environments, making them ideal for site colonization (Limited Maintenance scenario) or an abundance of long-lived broadleaved species, with conifers and other companion species (Diversified scenario). Striking a balance between local stakeholders' and land managers' needs and preferences regarding planted species and functional diversity should be achievable [62].…”

Section: Vegetation Diversity and Structurementioning

confidence: 99%

Exploring the Potential of Roadside Plantation for Carbon Sequestration Using Simulation in Southern Quebec, Canada

Srour,

Thiffault,

Boucher

2024

Forests

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Afforestation of urban lands can play an important role in increasing carbon sequestration and mitigating the effects of climate change. This study aimed to evaluate the potential for carbon sequestration and storage in plantations on roadsides in southern Quebec, Canada. We used the Carbon Budget Model of the Canadian Forester Sector 3 (CBM-CFS3) to simulate the carbon sequestration capacity over 100 years of plantations established following afforestation with different species mixtures based on local needs and aspirations. We then compared the carbon sequestration potential of simulated plantations with the carbon storage of natural vegetation of reference roadsides with different histories of land use. Our findings suggested that plantations on roadsides subjected to high anthropogenic pressure, such as road rights-of-way, may provide carbon sequestration benefits relative to baseline conditions (i.e., no plantation). For instance, 15 years after afforestation, the additional carbon sequestration potential of plantations on road rights-of-way varied between 25 and 32 Mg ha−1, depending on the afforestation scenario. However, allowing roadsides classified as abandoned agricultural lands to undergo natural succession could promote higher carbon storage on roadsides than planting, irrespective of species mixtures. Our results indicated that the carbon storage of vegetation resulting from the abandonment of agriculture 35 to 45 years ago showed a range of 260 to 290 Mg ha−1, which exceeded the carbon stocks predicted with afforestation models for 60 to 84 years after planting. Indeed, reference roadsides used for agriculture in the past, but that have otherwise not been subjected to other anthropogenic degradation, appeared to naturally evolve toward forest vegetation with higher carbon stocks than simulated plantations.

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Section: Vegetation Diversity and Structurementioning

confidence: 99%

Exploring the Potential of Roadside Plantation for Carbon Sequestration Using Simulation in Southern Quebec, Canada

Srour,

Thiffault,

Boucher

2024

Forests

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“…Planting of mixed species forest stands instead of monospecific stands has been recommended over the last decades due to a variety of reasons (Cagnoni et al., 2023; Pardos et al., 2021). There is evidence of differences in soil microbial communities between monocultures and mixed plantations (Chen et al., 2021), and an increase in nutrient utilization efficiency and availability in mixed plantations has also been reported (Chen et al., 2021; Oliveira et al., 2021).…”

Section: Introductionmentioning

confidence: 99%

Male, female, and mixed‐sex poplar plantations support divergent soil microbial communities

Guo,

Zhu,

Sun

et al. 2024

Global Change Biology

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Males and females of dioecious plants have sex‐specific adaptations to diverse habitats. The effects of inter‐ and intrasexual interactions in poplar plantations on composition, structure, and function of soil microbiota have not been explored in degraded areas. We conducted a series of greenhouse and field experiments to investigate how belowground competition, soil microbial communities, and seasonal variation nitrogen content differ among female, male, and mixed‐sex Populus cathayana plantations. In the greenhouse experiment, female neighbors suppressed the growth of males under optimal nitrogen conditions. However, male neighbors enhanced stable isotope ratio of nitrogen (δ15N) of females under intersexual competition. In the field, the root length density, root area density, and biomass of fine roots were lower in female plantations than in male or mixed‐sex plantations. Bacterial networks of female, male, and mixed‐sex plantations were characterized by different composition of hub nodes, including connectors, modules, and network hubs. The sex composition of plantations altered bacterial and fungal community structures according to Bray‐Curtis distances, with 44% and 65% of variance explained by the root biomass, respectively. The total soil nitrogen content of mixed‐sex plantation was higher than that in female plantation in spring and summer. The mixed‐sex plantation also had a higher β‐1,4‐N‐acetyl‐glucosaminidase activity in summer and a higher nitrification rate in autumn than the other two plantations. The seasonal soil N content, nitrification rate, and root distribution traits demonstrated spatiotemporal niche separation in the mixed‐sex plantation. We argue that a strong female–female competition and limited nitrogen content could strongly impede plant growth and reduce the resistance of monosex plantations to climate change and the mixed‐sex plantations constitutes a promising way to restore degraded land.

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Strategies and Barriers to Reconcile Pest Management with Insect Conservation in Temperate and Boreal Forests

Gazzea,

Battisti,

Marini

2024

Curr. For. Rep.

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Purpose of Review To describe how general prescriptions to protect temperate and boreal forests against pests have been affecting the conservation of insect diversity, (2) to identify potential conflicts between biodiversity conservation actions and pest control, and (3) to provide future directions to reconcile forest pest management with insect conservation. Recent Findings Despite dealing with the same habitats and organisms, forest pest management and insect conservation have been separate disciplines, often pursuing conflicting goals. However, there is a large intersection between the two, as interventions to control pests can have repercussions on biodiversity and vice versa. In several regions, forest pest management is shifting from reactive measures to contain on-going outbreaks to proactive strategies to create forest landscapes that are more resistant and resilient against pests in the long-term. These developments suggest a possible convergence between pest management and insect conservation objectives. Summary Several reactive measures adopted to control pests can cause negative impacts on non-target insects, although effects are sometimes localized and often context-dependent. Following ecological, economic, and social considerations, pest management has been evolving towards diversifying forests across multiple spatial scales to reduce the severity of outbreaks and the risk of damage. Such strategies concur with multiple conservation goals to increase insect diversity across intensive forest landscapes. Insect conservation has traditionally targeted saproxylic organisms, neglecting the conservation of other insect guilds and seldom assessing side effects on pests. Despite some important knowledge gaps, we propose complementary approaches to combine multiple diversification strategies at the landscape scale to reconcile pest management with insect conservation.

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Stakeholders’ Perspectives of Species Diversity in Tree Plantations: a Global Review

Cited by 4 publications

References 69 publications

Exploring the Potential of Roadside Plantation for Carbon Sequestration Using Simulation in Southern Quebec, Canada

Exploring the Potential of Roadside Plantation for Carbon Sequestration Using Simulation in Southern Quebec, Canada

Male, female, and mixed‐sex poplar plantations support divergent soil microbial communities

Strategies and Barriers to Reconcile Pest Management with Insect Conservation in Temperate and Boreal Forests

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