Influence of soil properties and burial depth on Persian oak (Quercus brantii Lindl.) establishment in different microhabitats resulting from traditional forest practices

Heydari, Mehdi; Prévosto, Bernard; Naji, Hamid Reza; Mehrabi, Ali Ashraf; Pothier, David

doi:10.1007/s10342-017-1029-4

Cited by 23 publications

(5 citation statements)

References 123 publications

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“…In contrast, the positive effect of shrubs on seedling development has been emphasized by many previous studies, particularly in opened Mediterranean environments (e.g. Gómez-Aparicio et al, 2004Heydari et al, 2017).…”

Section: Discussionmentioning

confidence: 86%

Microclimate in Mediterranean pine forests: What is the influence of the shrub layer?

Prévosto

Helluy

Gavinet

et al. 2020

Agricultural and Forest Meteorology

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Forest cover creates a specific microclimate by buffering most environmental variables. If the influence of the overstory on microclimatic variables has been well studied, the role of the understory has received less attention. In this study we investigated how the shrub layer modifies solar radiation, air temperature (T), relative air humidity (RH), vapor pressure deficit (VPD) and soil moisture under different thinning treatments in an Aleppo pine forest (Pinus halepensis Mill.). Microclimatic variables were measured along a vegetation cover gradient made up of three pine densities (dense, medium, low) and open conditions, with or without the presence of shrubs. The results were analyzed with a focus on the summer period which represents a major bottleneck for plant development in the Mediterranean area. Average T and VPD values increased with decreasing vegetation cover (+1.38°C and +0.21 kPa for the whole year) while RH decreased (-2.34%). Along the same gradient, daily amplitude of T, RH, VPD increased while the buffering capacity decreased. These patterns were more Highlights  A buffering effect on T, VPD, RH was noted for the overstory and the understory  This effect was more pronounced in summer due to a stronger shading effect  Shrub influence on T, RH, VPD was higher in low pine cover and in open conditions  Soil moisture was reduced in the presence of a developed shrub layer

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Section: Discussionmentioning

confidence: 86%

Microclimate in Mediterranean pine forests: What is the influence of the shrub layer?

Prévosto

Helluy

Gavinet

et al. 2020

Agricultural and Forest Meteorology

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“…These results confirm the relatively greater shade tolerance of the Spanish black pine compared to other Iberian pines such as Pinus halepensis M. or Pinus pinaster Ait. [48]. Similarly, the higher seed fall found in Palancares in comparison to Majadas also resulted in higher seedling emergence rates in the typical Spanish black pine distribution area in comparison to a more relict habitat.…”

Section: Discussionmentioning

confidence: 82%

“…It is usually held that forest stand structures alter light, soil temperature, and moisture conditions and drive natural regeneration processes in different ways [46,47]. For instance, forest canopies cause deterministic processes that consistently redistribute precipitation and soil moisture, highly altering initial recruitment patterns [48,49]. Comparing harvested plots at different locations in relict areas, Spanish black pine became more light demanding, and mid-stand openness values showed higher seed germination rates.…”

Section: Discussionmentioning

confidence: 99%

Effects of Skidding Operations after Tree Harvesting and Soil Scarification by Felled Trees on Initial Seedling Emergence of Spanish Black Pine (Pinus nigra Arn. ssp. salzmannii)

Lucas‐Borja

Heydari

Zema

et al. 2020

Forests

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Skidding operations are thought to have negative impacts on soil emergence because they may increase soil compaction and reduce vegetation cover and the soil’s organic matter content. We investigated whether and to what extent tree harvesting and subsequent skidding initially altered seedling emergence in two Mediterranean forests of Pinus nigra Arn. ssp. salzmannii (Spanish black pine) in the Cuenca Mountains (Spain). Our main objective was to compare the Spanish black pine seedling emergence rate among skid trails, soil areas scarified by felled trees, and areas undisturbed next to harvest operations. In addition, we selected an unmanaged stand as reference, in order to look for evidence of seedling emergence under natural conditions. We measured Spanish black pine seed fall and seedling emergence immediately after harvest operations in two locations in the Cuenca Mountains (Palancares and Majadas forests), which are typical forests in Cuenca Mountains. The results showed that the Palancares site presented higher seed fall in comparison to the Majadas site. In addition, seed fall was higher in the unmanaged stand, as we recorded a higher tree density in this site in comparison to harvested stands (Palancares and Majadas). Furthermore, our results demonstrated differences in seedling emergence between lower elevation drier Palancares and higher elevation wetter Majadas and relative differences in seedling emergence among skid trail, scarified, and undisturbed harvested areas. Finally, the unmanaged stand presented the highest seedling emergence in comparison to scarified, compacted, and non-disturbed harvested areas. Overall, the results suggest a short-term impact of skidding on seedling emergence, which should be considered for future management guidelines of Spanish black pine in the Mediterranean climate.

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“…In each of the areas, 4 random soil samples were taken from two depths of 0-15 and 15-30 cm (30 samples in total) and their soil characteristics including: chemical properties (pH, EC, percentage of organic carbon, percentage of total nitrogen and available phosphorus), physical properties (sand, silt, clay, saturated moisture and bulk density) and biological properties (basal respiration) were evaluated by standard methods in the laboratory (see Heydari et al, 2017). A part of each sample was kept at 4°C to check soil respiration.…”

Section: Experimental Design and Samplingmentioning

confidence: 99%

Evaluation of biomass and vegetative characteristics of mesquite (Prosopis juliflora) afforestation in arid area of Iran

Hosseinzadeh,

Heydari,

Ehsani

et al. 2024

Preprint

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Evaluating the degree of success in the growth, effectiveness and durability or replacement of pioneer afforestation in dry areas of the world is one of the important issues of managing these forests. We evaluated the suitability of mesquite for afforesting degraded lands in the dry climate region of Einkhosh, Ilam province, Iran by studying the influence of stand density (180 and 250 trees per ha) and age (15, 27 and 34 years) on tree development, growth and biomass, and soil quality in. We measured tree characteristics (height, crown height, collar diameter and crown area) and calculated above-ground biomass. Soil quality index was determined at two depths (0–15 and 15–30 cm) based on the measured physical, chemical and biological soil properties. The results showed that stand age and density and their interaction significantly affected stem number, crown height growth and soil quality index. The average number of stems was the highest (7.8 per hectare) in the 15-year-old stand and the lowest (1.5 per hectare) in the 34-year-old stand. Height, collar diameter, basal area growth, biomass, and competition between trees were significantly affected by stand age and its interaction with stand density (p < 0.01). The average annual growth of tree collar diameter and height with age was lowest (4.1 mm per year and 17.7 cm per year, respectively) in the 34-year-old stand. In contrast, average annual growth rates of 7.2 mm and 31 cm for collar diameter and height, respectively, in the 15-year-old stand. The surface soil quality index increased with the stand age and density, and it was highest (averaging 0.714) in the dense areas of the 34-year-old stand. In contrast, soil quality index at lower soil depths, decreased with increasing stand age, but it was still highest in the dense areas of the 34-year-old stand. The basal area at the stem collar showed a positive and strong correlation with total height, crown height, degree of competition and crown area. In general, high density mesquite afforestation plantings (250 trees per hectare) in this dry and desert area improved soil quality and increased vegetative and productivity characteristics of mesquite, especially as stands aged. Therefore, mesquite can be a suitable option for revitalization of sites in dry and sparsely vegetated areas.

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Influence of soil properties and burial depth on Persian oak (Quercus brantii Lindl.) establishment in different microhabitats resulting from traditional forest practices

Cited by 23 publications

References 123 publications

Microclimate in Mediterranean pine forests: What is the influence of the shrub layer?

Microclimate in Mediterranean pine forests: What is the influence of the shrub layer?

Effects of Skidding Operations after Tree Harvesting and Soil Scarification by Felled Trees on Initial Seedling Emergence of Spanish Black Pine (Pinus nigra Arn. ssp. salzmannii)

Evaluation of biomass and vegetative characteristics of mesquite (Prosopis juliflora) afforestation in arid area of Iran

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