Cultivation profile: a visual evaluation method of soil structure adapted to the analysis of the impacts of mechanical site preparation in forest plantations

Collet, Catherine; Vast, Florian; Richter, Claudine; Koller, Rémi

doi:10.1007/s10342-020-01315-2

Cited by 11 publications

(9 citation statements)

References 47 publications

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“…The MSP treatments used in our study differed in terms of their direct impacts on soil structure. Visual soil observations performed in the experimental sites (Collet et al 2020) showed that the lightweight tools, DS and MS, loosened the soil horizons down to a depth of 30 and 45 cm, respectively, and completely removed the upper organic soil horizons. The other MSP tools used in our study reached a depth of only 20 cm and did not remove the organic horizons.…”

Section: Impacts Of Msp On Competing Plant Species and Soilsmentioning

confidence: 95%

“…In each site, cultivation profiles, a method to analyse the impacts of cultivation practices on soil structure (Collet et al 2020), were performed in treatment DS, DS+MF and C. An average profile for treatments DS and DS+MF is shown in Suppl. file S1.…”

Section: Study Sites and Experimental Designmentioning

confidence: 99%

“…The tools are mounted on lightweight excavators that have a high manoeuvrability and allow localised spot or line preparation. The tools perform locally intensive site preparation that leads to strong soil disturbances around the seedlings (Quibel 2020;Collet et al 2020) and that leaves large unprepared zones between the planting spots, whereas the intensity of soil disturbance evaluated at stand scale is low (Quibel 2020). In addition, the low weight of the machines leads to reduced deep soil compaction under the wheel tracks (Collet et al 2020).…”

Section: Introductionmentioning

confidence: 99%

“…The tools perform locally intensive site preparation that leads to strong soil disturbances around the seedlings (Quibel 2020;Collet et al 2020) and that leaves large unprepared zones between the planting spots, whereas the intensity of soil disturbance evaluated at stand scale is low (Quibel 2020). In addition, the low weight of the machines leads to reduced deep soil compaction under the wheel tracks (Collet et al 2020). These tools seem to provide an interesting compromise between the intensity of soil disturbance required to reduce the constraints to seedling establishment and the overall soil disturbance estimated at stand scale, but their actual effects on seedling performance have not yet been evaluated.…”

Section: Introductionmentioning

confidence: 99%

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Four-year-performance of oak and pine seedlings following mechanical site preparation with lightweight excavators

Dumas¹,

Dassot²,

Pitaud³

et al. 2021

Silva Fenn.

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Mechanical site preparation methods that used tools mounted on lightweight excavators and that provided localised intensive preparation were tested in eight experimental sites across France where the vegetation was dominated either by (L.) Moench or (L.) Kuhn. Two lightweight tools (Deep Scarifier: DS; Deep Scarifier followed by Multifunction Subsoiler: DS+MS) were tested in pine ( L., var. (Loudon) Hyl. or Aiton) and oak ( (Matt.) Liebl. or L.) plantations. Regional methods commonly used locally (herbicide, disk harrow, mouldboard plow) and experimental methods (repeated herbicide application; untreated control) were used as references in the experiments. Neighbouring vegetation cover, seedling survival, height and basal diameter were assessed over three to five years after plantation. For pines growing in , seedling diameter after four years was 37% and 98% greater in DS and DS+MS, respectively, than in the untreated control. For pines growing in , it was 62% and 107% greater in the same treatments. For oak, diameter was only 4% and 15% greater in , and 13% and 25% greater in , in the same treatments. For pines, the survival rate after four years was 26% and 32% higher in and 64% and 70% higher in , in the same treatments. For oak, it was 3% and 29% higher in and 37% and 31% higher in . Herbicide, when applied for three or four years after planting, provided the best growth performances for pines growing in and and for oaks growing in . For these species and site combinations, DS+MS and DS treatments reduced the neighbouring vegetation cover for one to four years following site preparation.Molinia caeruleaPteridium aquilinumPinus sylvestrisPinus nigracorsicanaPinus pinasterQuercus petraeaQuercus roburM. caeruleaP. aquilinumM. caeruleaP. aquilinumM. caeruleaP. aquilinumM. caeruleaP. aquilinumM. caerulea P. aquilinumP. aquilinum

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Section: Impacts Of Msp On Competing Plant Species and Soilsmentioning

confidence: 95%

Section: Study Sites and Experimental Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Four-year-performance of oak and pine seedlings following mechanical site preparation with lightweight excavators

Dumas¹,

Dassot²,

Pitaud³

et al. 2021

Silva Fenn.

Self Cite

View full text Add to dashboard Cite

show abstract

“…We evaluated the following silvicultural operations pre-planting: mechanized weed mowing, manual control of leaf-cutting ants with ant traps (Mirex-S ® active ingredient sulfluramid), and soil preparation with a subsoiler pulled by a tractor [47][48][49]. After the planting of Pinus elliottii seedlings produced in polyethylene tubes, we evaluated the following silvicultural operations: replanting, manual and mechanized weed mowing until 1 year after planting, manual control of leaf-cutting ants with ant traps until 3 years after planting, mechanized application of post-emergence herbicide (Roundup Original ® active ingredient glyphosate) until 4 years after planting, pruning, and thinning [47,48,[50][51][52].…”

Section: Site Description and Experimental Detailsmentioning

confidence: 99%

Investments in Pinus elliottii Engelm. Plantations: Real Options Analysis in Discrete Time

Martins

Silva

Munis

et al. 2022

Forests

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Background: The commonly used methods for the financial evaluation of plantation forest investment projects do not incorporate uncertainties and ignore the value related to flexibility. The real options analysis makes it possible to capture these values in investment projects, increasing their value and return. Despite this, studies involving real options in forest investment projects are scarce, specifically those related to Pinus spp. Therefore, this study aimed to: (a) analyze whether the real options analysis adds value to investment projects of Pinus elliottii Engelm. plantations; and (b) make the real options analysis more accessible to forest managers and potentially increase its use in the investment projects of Pinus spp. plantations. Methods: We evaluated two investment projects in P. elliottii plantations in southern Brazil, which differed in the way of obtaining the land for planting: with lease or purchase of land on a planning horizon of 21 years. In the real options analysis, we used deferral, expansion, and abandonment. Results: Individually, the deferral, expansion, and abandonment options add value to investment projects in Pinus elliottii plantations. The option to expand the forested area is one that adds the most value to the investment project with land lease. In the investment project with land purchase, it is abandonment. Conclusions: Investment projects in Pinus elliotti plantations that contemplate the land purchase analyzed through the real options analysis present higher financial returns than those that consider land lease, inverting the result provided by the traditional analysis.

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Mechanical site preparation severity mediates one-year-survival response to summer drought in planted tree seedlings

Collet,

Agro,

Akroume

et al. 2024

New Forests

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In face of future climatic conditions, methods to ensure the success of forest plantation in warm and dry conditions are required. Mechanical site preparation (MSP) prior to planting is widely used around the world to enhance seedling establishment success. Our study aimed at identifying, among a set of MSP methods that are used in practical forestry, which methods ensure plantation success under dry weather conditions.We evaluated the combined effects of summer drought (estimated using the Standard Precipitation Index) and MSP severity (estimated using vegetation cover in the immediate seedling vicinity one year after MSP) on 1-year seedling survival. We used a network of 20 experimental sites established in France over a 10-year-period, and where seedlings were planted after various MSP.In all treatments (severe MSP, moderate MSP, no MSP), seedling survival was higher in years with rainy summers than in years with dry summers. In rainy years, both moderate and severe MSP methods slightly improved the seedling survival rate (95%) compared to the unprepared control (88%). In dry years, seedling survival was similar after moderate MSP or with no MSP (50 and 54%, respectively), whereas it was much higher after severe MSP (79%).In practical forestry, severe MSP appears as an option to enhance early seedling survival, especially when summer precipitations are lower than the seasonal average, whereas moderate MSP does not signi cantly improve seedling survival compared to an unprepared control, in all summer weather conditions.

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Cultivation profile: a visual evaluation method of soil structure adapted to the analysis of the impacts of mechanical site preparation in forest plantations

Cited by 11 publications

References 47 publications

Four-year-performance of oak and pine seedlings following mechanical site preparation with lightweight excavators

Four-year-performance of oak and pine seedlings following mechanical site preparation with lightweight excavators

Investments in Pinus elliottii Engelm. Plantations: Real Options Analysis in Discrete Time

Mechanical site preparation severity mediates one-year-survival response to summer drought in planted tree seedlings

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