Kooperativer Bibliotheksverbund

Berlin Brandenburg

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  • 1
    Language: English
    In: Forests, 01 November 2013, Vol.4(4), pp.1003-1031
    Description: Nurse crops of widely spaced pioneer trees are a silvicultural approach to protect the regeneration of frost sensitive target tree species. If overstorey nurse crops are harvested, they can provide additional short-term benefits through increased...
    Keywords: Allometric Biomass Equation ; Nurse Crop ; Populus Ssp ; Betula Ssp ; Wide Tree Spacing ; H/D Ratio ; Branch Biomass Allocation ; Forestry
    E-ISSN: 1999-4907
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  • 2
    Language: English
    In: Forests, 01 February 2018, Vol.9(3), p.104
    Description: Tree-related microhabitats are an important determinant of forest biodiversity. Habitat trees, which typically provide many microhabitats such as hollows, crown dead wood, etc., are therefore selected to maintain those structural attributes within managed forests. To what extent the occurrence...
    Keywords: Tree Microhabitats ; Structural Diversity ; Mixed Mountain Forest ; Habitat Tree ; Retention Tree ; Forestry
    E-ISSN: 1999-4907
    Source: Directory of Open Access Journals (DOAJ)
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  • 3
    Language: English
    In: Forests, 01 August 2013, Vol.4(3), pp.650-665
    Description: Low density plantings complemented by natural regeneration is an increasingly common reforestation technique to ensure growth of a sufficient number of trees from desired species while maintaining natural processes such as succession. One such form of low density planting that aims at lowering...
    Keywords: Tree Species Diversity ; Productivity ; Oak Regeneration ; Group Planting ; Nest Planting ; Mixed-Species Forests ; Forestry
    ISSN: 1999-4907
    E-ISSN: 1999-4907
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  • 4
    Language: English
    In: Forests, 01 October 2016, Vol.7(10), p.239
    Description: Widespread and economically important European tree species such as Norway spruce, Scots pine, and European beech are projected to be negatively affected by the increasing intensity and frequency of dry and hot conditions in a future climate. Hence, there is an increasing need to investigate...
    Keywords: Acer ; Sorbus ; Regeneration ; Drought Tolerance ; Resistance ; Recovery ; Forestry
    E-ISSN: 1999-4907
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  • 5
    Language: English
    In: Forests, 01 November 2016, Vol.7(11), p.289
    Description: Recent studies have reported superior tree quality and comparable tree growth of oaks planted in group compared with row planting. However, a comparative assessment of the potential future crop trees (PFCTs) between group and row planting is still lacking. Here, we compared the density and...
    Keywords: Oak Regeneration ; Group Planting ; Potential Future Crop Tree ; Tree Quality and Growth ; Forest Restoration ; Low-Density Planting ; Forestry
    E-ISSN: 1999-4907
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  • 6
    Language: English
    In: Forests, 2013, Vol.(1), pp.85-103
    Description: Recent studies have shown that, owing to a lack of seed trees, the natural rate of recovery of fire-disturbed bog forests previously dominated by the endemic and endangered conifer Pilgerodendron uviferum (D. Don) Florin is extremely slow. Hence, increasing the number of seed trees in the landscape through restoration planting could remove the principal biotic filter, limiting recovery of these forests. Here, we analyzed how the success of restoration plantings may be improved through the choice or manipulation of microsites in P. uviferum forests on Chiloé Island in North Patagonia. For this purpose, we manipulated microtopography in water-logged sites in bogs (mounds, flat terrain, mineral soil) and changed canopy conditions (gaps, semi-open, closed canopy) in upland sites with better drainage. In bogs, there was no significant effect of microtopography on growth and survival of P. uviferum plantings. However, fluorescence measurements indicated lower stress in seedlings established on mounds. Seedlings in upland areas established beneath a nurse canopy had lower mortality and higher relative shoot growth, foliar nutrients, photosynthetic light use efficiency and chlorophyll fluorescence values than those planted in the open. This indicates that seedlings of the slow growing P. uviferum can tolerate extremely wet conditions, yet suffer from stress when grown in the open. Here, the removal of canopy appeared to have also removed or reduced mycorrhizal networks for seedlings, leading to poorer nutrition and growth. Based on these results, recommendations for restoration plantings in highly degraded P. uviferum forests are presented. ; p.85-103
    Keywords: Sphagnum ; Chiloé Island ; Conifer Bog Forests ; Seedling Growth ; North Patagonia ; Active Restoration
    ISSN: 19994907
    E-ISSN: 19994907
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  • 7
    Language: English
    In: Forests, 01 July 2015, Vol.6(7), pp.2484-2504
    Description: Large dead wood is an important structural component of forest ecosystems and a main component of forest carbon cycles. CO2 emissions from dead wood can be used as a proxy for actual decomposition rates. The main drivers of CO2 emission rates...
    Keywords: Wood-Inhabiting Fungi ; Temperate Forests ; Biodiversity Exploratories ; Forest Management ; Infrared Gas Analyzer ; Forestry
    E-ISSN: 1999-4907
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  • 8
    Language: English
    In: Forests, 2013, Vol.(1), pp.106-121
    Description: Pruning of live branches is a management option to enhance wood quality in plantation trees. It may also alter whole-tree water use, but little is known about the extent and duration of changes in transpiration. In this study, sap flow sensors were used to measure transpiration for 14 days prior to, and 75 days following the removal, through pruning, of the lower 50% of the live-crown length of 10–11 m tall four-year old Eucalyptus pilularis Sm. and E. cloeziana F. Muell. trees. Pruning had no effect on stem growth, sapwood water content or radial pattern of sap velocity in either species. Pruning reduced mean daily water use by 39% in E. pilularis and 59% in E. cloeziana during the first eight days after pruning. Thirty six days after pruning there were no longer any significant differences in transpiration rates between pruned and unpruned trees in either species. Our results show that pruning of live branches had only a short-term effect on whole-tree transpiration in these sub-tropical eucalypt species. ; p.106-121
    Keywords: Eucalypt ; Sapwood ; Defoliation ; Sap Flow ; Compensation Heat Pulse Technique
    ISSN: 19994907
    E-ISSN: 19994907
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