scholarly journals Experimental Examination of Vegetative Propagation Methods of Nothofagus antarctica (G. Forst.) Oerst. for Restoration of Fire-Damaged Forest in Torres del Paine National Park, Chile

Forests ◽  
2021 ◽  
Vol 12 (9) ◽  
pp. 1238
Author(s):  
Josef Cafourek ◽  
Petr Maděra ◽  
Josef Střítecký ◽  
Radim Adolt ◽  
Martin Smola
Keyword(s):  
Vegetative Propagation ◽  
Boreal Forests ◽  
Artificial Regeneration ◽  
Nothofagus Antarctica ◽  
Temperate Deciduous ◽  
Temperate Deciduous Forests ◽  
Forest Nurseries ◽  
Propagation Methods ◽  
Seed Propagation ◽  
Torres Del Paine

Nothofagus antarctica (Antarctic beech) is one of the main woody plants in the temperate deciduous forests and anti-boreal forests of the southern hemisphere. Since colonization of the Andean-Patagonian region by European settlers, however, stands of this species have been severely affected by fires caused by human activities, considerably reducing their area. To restore these forests to their area occupied before the fires, it is necessary to use artificial regeneration, relying on production of transplants in forest nurseries. Due to the low capacity for seed propagation, we focus on possibilities of producing seedlings by vegetative propagation. In a trial, we collected cuttings during three sets of dates, and attempted to root them using three combinations of substrate and ten combinations of stimulators. Using the most favorable combination of collection period, substrate and stimulator tested resulted in rooting of 23% of the cuttings, which exceeds the documented germination rates for this species.

Carbon storage in managed forests

1983 ◽  
Vol 13 (1) ◽  
pp. 155-166 ◽  
Author(s):  
Charles F. Cooper
Keyword(s):  
Carbon Storage ◽  
Boreal Forests ◽  
Managed Forests ◽  
Forest Regrowth ◽  
Maximum Sustained Yield ◽  
Richards Function ◽  
Temperate Deciduous ◽  
Sustained Yield ◽  
Temperate Deciduous Forests ◽  
The Tropics

The mass of carbon stored in forests is an important component of the global carbon cycle. A general model is developed to relate average carbon storage over the lifetime of a forest managed for sustained yield to the maximum biomass of the same forest at maturity. Point of inflection of stand growth is established using the Richards function. If a forest is managed for maximum sustained yield of biomass, mean lifetime carbon storage is about one-third that at maturity. Point of growth inflection has little effect on this fraction. When accumulation and decomposition of detritus after harvest are added, the fraction is about 0.5 in temperate deciduous forests, less in the tropics, and more in boreal forests. Harvest at financial maturity, by shortening the rotation, disproportionately reduces lifetime carbon storage, to perhaps 0.2 of the maximum. Nontimber values may affect carbon storage either positively or negatively. Forest regrowth and multispecies agricultural systems that include trees may account for more carbon storage in the tropics than is sometimes assumed.

RAPD Variation among Quercus Species Distributed in Temperate Deciduous Forests of the Hiruzen Mountains

1997 ◽  
Vol 2 (2) ◽  
pp. 121-123 ◽  
Author(s):  
Jeong Ho Lee ◽  
Hayato Hashizume ◽  
Atsushi Watanabe ◽  
Toshitake Fukata ◽  
Susumu Shiraishi ◽  
...  
Keyword(s):  
Deciduous Forests ◽  
Quercus Species ◽  
Temperate Deciduous ◽  
Rapd Variation ◽  
Temperate Deciduous Forests

Seed banking in ancient forest species: why total sampled area really matters

2012 ◽  
Vol 22 (2) ◽  
pp. 123-133 ◽  
Author(s):  
Jan Plue ◽  
Ken Thompson ◽  
Kris Verheyen ◽  
Martin Hermy
Keyword(s):  
Species Richness ◽  
Seed Bank ◽  
Deciduous Forests ◽  
Forest Species ◽  
Sampling Methodology ◽  
Total Species Richness ◽  
Ancient Forest Species ◽  
Ancient Forest ◽  
Temperate Deciduous ◽  
Temperate Deciduous Forests

AbstractThis study investigates how methodological aspects of seed-bank sampling affect seed-bank records in temperate deciduous forests. We focused explicitly on seed-bank records of ancient forest species, which are assumed to lack a persistent seed bank; a hypothesis suspected to be partly due to methodological shortcomings. Through a quantitative review of 31 seed-bank studies in temperate deciduous forests of central and north-west Europe, we quantified the role of sampling methodology in constraining total seed-bank records and seed-bank records of ancient forest species (γ-diversity, average species' retrieval frequency and average seed density). A major methodological trade-off was established between sampled plot area and the number of plots: at an increased number of plots, the area sampled per plot decreased significantly. The total surface area sampled in a study was the primary determinant of γ-diversity, both for overall species richness and for ancient forest species richness. A high retrieval frequency of ancient forest species indicated that few plots were intensively sampled. The parallel increase in total species richness and ancient forest species richness and the non-significance of their ratio in relation to methodological variables suggests that ancient forest species are not particularly rare in the seed bank compared to other species. These results imply that sampling methodology has a far-reaching impact on seed-bank records such as γ-diversity, the detection of ancient forest species and ultimately seed-bank composition. We formulate a set of guidelines to improve the quality of seed-bank studies in temperate deciduous forests.

Vegetation recovery on closed paths in temperate deciduous forests

2005 ◽  
Vol 74 (3) ◽  
pp. 273-281 ◽  
Author(s):  
Pieter Roovers ◽  
Beatrijs Bossuyt ◽  
Hubert Gulinck ◽  
Martin Hermy
Keyword(s):  
Deciduous Forests ◽  
Vegetation Recovery ◽  
Temperate Deciduous ◽  
Temperate Deciduous Forests

scholarly journals Ectomycorrhizas accelerate decomposition to a greater extent than arbuscular mycorrhizas in a northern deciduous forest

2021 ◽  
Author(s):  
Alexis Carteron ◽  
Fabien Cichonski ◽  
Etienne Laliberté
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Deciduous Forest ◽  
Arbuscular Mycorrhizal ◽  
Am Fungi ◽  
Arbuscular Mycorrhizas ◽  
Fungal Hyphae ◽  
Organic Horizons ◽  
Temperate Deciduous ◽  
Temperate Deciduous Forests

AbstractIt has been proposed that ectomycorrhizal (EcM) fungi slow down decomposition by competing with free-living saprotrophs for organic nutrients and other soil resources (known as the “Gadgil effect”), thereby increasing soil carbon sequestration. As such, this Gadgil effect should depend on soil organic matter age and quality, but this remains unstudied. In addition, the Gadgil effect is not expected to occur in arbuscular mycorrhizal (AM) forests since AM fungi cannot access directly nutrients from soil organic matter, yet few direct comparisons between EcM and AM forests have been made. We performed a two-year reciprocal decomposition experiment of soil organic horizons (litter - L, fragmented - F, humic - H) in adjacent temperate deciduous forests dominated by EcM or AM trees. Litterbags were made of different mesh sizes allowing or excluding ingrowth of external fungal hyphae, which are primarily mycorrhizal in these forests other than for the most-recent superficial litter horizon. As expected, organic matter originating from deeper horizons and from EcM forests was of lower quality (e.g. higher lignin to nitrogen ratios) and decomposed more slowly. However, contrary to the Gadgil effect, organic matter exposed to external fungal hyphae (i.e. primarily mycorrhizal) actually decomposed faster in both forest types, and this effect was strongest in EcM forests, particularly in the F horizon. Unexpectedly, organic matter decomposition was faster in EcM than in AM forests, regardless of organic matter origin. Overall, our study reinforces the view that temperate EcM forests store greater amounts of soil organic carbon than AM forests, but suggests that this is due to factors other than the Gadgil effect.

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