Mounding site preparation for forest restoration: Survival and short term growth response in Quercus robur L. seedlings

2006 ◽  
Vol 232 (1-3) ◽  
pp. 19-25 ◽  
Author(s):  
Magnus Löf ◽  
D. Rydberg ◽  
Andreas Bolte
Keyword(s):  
Forest Restoration ◽  
Quercus Robur ◽  
Growth Response ◽  
Site Preparation ◽  
Short Term

scholarly journals Impact of Thermotherapy and Short-Term Storage on Quercus robur L. Acorn Mycobiota and Germination

Forests ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 528
Author(s):  
Jelena Kranjec Orlović ◽  
Damir Drvodelić ◽  
Marko Vukelić ◽  
Matea Rukavina ◽  
Danko Diminić ◽  
...  
Keyword(s):  
Natural Regeneration ◽  
Fungal Diversity ◽  
Quercus Robur ◽  
Negative Impact ◽  
Storage Conditions ◽  
Short Term ◽  
Isolation Frequency ◽  
Short Term Storage ◽  
Penicillium Spp ◽  
Term Storage

When natural regeneration of Quercus robur stands is hampered by an insufficient acorn yield, human assisted sowing of acorns collected in non-affected stands and stored for some period of time is performed. To inhibit the development of fungi and acorn deterioration during storage, thermotherapy is usually applied by submerging acorns for 2.5 h in water heated to 41 °C. This research aimed to test the effect of four thermotherapy treatments of different durations and/or applied temperatures as well as short-term storage at −1 °C or 3 °C on acorn internal mycobiota and germination. Fungal presence in cotyledons was analyzed in 450 acorns by isolation of mycelia on artificial media, followed by a DNA-based identification. Germination of 2000 acorns was monitored in an open field trial. Thermotherapy significantly decreased fungal diversity, while storage at 3 °C increased the isolation frequency of several fungi, mainly Penicillium spp. The most frequently isolated fungi did not show a negative impact on acorn germination after short-term storage. The study confirmed the efficiency of thermotherapy in the eradication of a part of acorn internal mycobiota, but also its effect on the proliferation of fast-colonizing fungi during storage. However, the latter showed to be more stimulated by storage conditions, specifically by storage at 3 °C.

scholarly journals Measuring the Short-term Success of Hill Dipterocarp Forest Restoration: The Use of Organic Materials

2012 ◽  
Vol 5 (1) ◽  
Author(s):  
Ika Heriansyah ◽  
Hazandy Abdul Hamid ◽  
Ahmad Ainudin Nuruddin ◽  
Arifin Abdu ◽  
Shamsudin Ibrahim
Keyword(s):  
Forest Restoration ◽  
Organic Materials ◽  
Short Term ◽  
Dipterocarp Forest ◽  
Hill Dipterocarp Forest

scholarly journals Study on site preparation and restoration techniques for forest restoration in mining tailings of Mariana, Brazil

2021 ◽  
Vol 2 (4) ◽  
Author(s):  
Sebastião Venâncio Martins ◽  
Pedro Manuel Villa ◽  
Fabio Haruki Nabeta ◽  
Leonardo Ferreira Da Silva ◽  
Gabriel Correa Kruschewsky ◽  
...  
Keyword(s):  
Plant Community ◽  
Forest Restoration ◽  
Site Preparation ◽  
Dam Failure ◽  
Positive Effects ◽  
Mining Tailings ◽  
Tree Community ◽  
Active Restoration ◽  
Substrate Properties ◽  
Substrate Fertility

Ecological restoration in forest ecosystem affected by the Fundão tailings dam failure is a national priority in Brazil. Thus, we evaluated the effects of passive and active restoration methods through different site preparation techniques by manipulating physical-chemical properties of substrates on tree community coverage in Mariana, Brazil. A total of 48 plots (12 × 12 m each) were established in two areas along the flood plains with accumulation of tailings. The following treatments were established: i) planting of native tree seedlings with fertilization and ii) without fertilization; iii) direct seeding of native trees with fertilization and iv) without fertilization; v) natural regeneration with fertilization and vi) without fertilization. Differences in substrate properties and tree community coverage were evaluated between treatments, the substrate properties and tree community coverage relationship, and main effects of substrate fertility and texture on tree community coverage. There were marked differences in substrate and plant coverage between treatments, maintaining a similar pattern in fertilizer treatments. There is a strong relationship between substrate fertility and plant community coverage, with significant positive effects. It was observed that the passive and active restoration methods can be complementary in the soil and plant community coverage recovery in the areas affected by the mining tailings in Mariana region. 

scholarly journals Alternatives to broadcast burning in the northern interior of British Columbia: Short-term tree results

2000 ◽  
Vol 76 (2) ◽  
pp. 349-353 ◽  
Author(s):  
J. M. Kranabetter ◽  
D. Yole
Keyword(s):  
British Columbia ◽  
Pinus Contorta ◽  
High Elevation ◽  
Site Preparation ◽  
Foliar Nutrients ◽  
Short Term ◽  
Positive Role ◽  
North Central ◽  
Mechanical Site Preparation ◽  
Foliar Concentrations

We compared the growth and foliar nutrients of lodgepole pine and hybrid white spruce following mechanical site preparation treatments and broadcast burning in a high-elevation plantation in north-central British Columbia. After five years, the largest trees were found on the broadcast burn (44% increase over raw planting), followed by disc-trenching (26% increase), and then windrow piling (9% increase). Height increment was similarly significantly different between treatments after seven years. Equal increases in nitrogen, phosphorus, and sulphur foliar concentrations were found across all site preparation treatments compared to controls. Foliar nutrients alone, however, did not further explain the differences in tree productivity between site preparation treatments. The results demonstrated how some sites can benefit from site preparation, in the short-term at least, and also emphasized the positive role fire can have on forest productivity. Key words: mechanical site preparation, broadcast burning, Picea gluaca, Pinus contorta

The response of lupins to waterlogging

1976 ◽  
Vol 16 (81) ◽  
pp. 549 ◽  
Author(s):  
P Broue ◽  
DR Marshall ◽  
J Munday
Keyword(s):  
Root System ◽  
Vegetative Growth ◽  
Growth Response ◽  
Short Term ◽  
Controlled Environments

The growth response of species and lines of lupin (Lupinus spp.) to short-term flooding of the root system during vegetative growth was measured in glasshouse and controlled environments. L. luteus was consistently more flood tolerant than L. albus, L. angustifolius and L. mutabilis. Some data showed also that lines within species may vary in their response to flooding but the differences among lines were less marked than those among species.

scholarly journals Multidecadal Growth of Western White Pine and Interior Douglas-Fir Following Site Preparation

Forests ◽  
2020 ◽  
Vol 11 (5) ◽  
pp. 509
Author(s):  
Jonathan R. Cherico ◽  
Andrew S. Nelson ◽  
Teresa B. Jain ◽  
Russell T. Graham
Keyword(s):  
Growth Response ◽  
Site Preparation ◽  
Douglas Fir ◽  
Growth And Yield ◽  
Response To Treatment ◽  
Stem Volume ◽  
Pinus Monticola ◽  
White Pine ◽  
Western White Pine ◽  
Competition Control

Site preparation is used to favor seedling regeneration and establishment by enhancing growing conditions and increasing resource availability, yet few studies have compared different site preparation techniques on growth and yield of trees over multiple decades. We destructively sampled 34-year old trees of western white pine (Pinus monticola Douglas ex D. Don) and Interior Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco var. glauca (Beissn.) Franco planted at two sites using a replicated experiment to test the effectiveness of different site preparation treatments: (1) no site preparation, (2) scalping, (3) bedding, and (4) bedding plus three years of competition control with herbicide. Growth and yield were compared among the treatments, and models of growth were developed for each species and treatment combination. The herbicide treatment was the only treatment that consistently improved growth and yield of both species resulting in 19%–30% gains in height, 43%–63% gains in diameter, and 31%–109% gains in stem volume by age 34. Height growth response to herbicide was sustained until age 14 for white pine and age 12 for Douglas-fir, while the diameter response was sustained until age 23 for white pine and 20 for Douglas-fir. The later peak in growth for white pine suggests a better response to treatment and that the species was able to maintain higher growth following crown closure. Both species exhibited a Type 2 growth response to herbicide, suggesting competition control resulted in sustained gains over time with associated age shifts of 8.5 and 9.7 years for white pine and 7.1 and 10.2 years for Douglas-fir, height and diameter, respectively. This compares to scalping and bedding which produced no detectable difference in growth compared to the control, and in some instances, reduced growth. In the Northern Rocky Mountains, moisture is most limiting. This is likely why trees showed the greatest response to competition control. Interestingly, this growth was sustained well beyond seedling establishment.

Short-Term Growth Response to GH Treatment and Considerations upon the Limits of Short-Term Growth Predictions

2002 ◽  
Vol 58 (2) ◽  
pp. 71-77 ◽  
Author(s):  
M. Hermanussen ◽  
R. Gausche ◽  
A. Keller ◽  
W. Kiess ◽  
M. Brabec ◽  
...  
Keyword(s):  
Growth Response ◽  
Short Term ◽  
Gh Treatment

scholarly journals Short-Term Growth Response to Growth Regulators In Roots of Zea Mays

1968 ◽  
Vol 21 (2) ◽  
pp. 201 ◽  
Author(s):  
DE Bottrill ◽  
JB Hanson
Keyword(s):  
Root Growth ◽  
Growth Response ◽  
Similar Degree ◽  
Dichlorophenoxyacetic Acid ◽  
Short Term ◽  
Irreversible Inhibition ◽  
Wide Range ◽  
2,4 Dichlorophenoxyacetic Acid ◽  
Indole 3 Acetic Acid

A study was made of the inhibition of root growth in Z. mays by 2,4-dichlorophenoxyacetic acid (2,4-D), 2,4,6-trichlorophenoxyacetic acid (2,4,6�T), and indole-3-acetic acid (IAA) over a wide range of concentrations. IAA and 2,4�D caused identical responses whereas the response to 2,4,6-T was different. Application of 2,4.D or IAA at concentrations of 4�5xl0-4M for 5 min resulted in an immediate reversible inhibition of root growth whereas long-term application gave an irreversible inhibition. The same concentration of 2,4,6-T caused a similar degree of inhibition of root growth, but only after an extended treatment, and the roots could then recover from the inhibition in the presence of the chemical.

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