Effects of aspect and slope position on growth and nutritional status of planted Aleppo pine (Pinus halepensis Mill.) in a degraded land semi-arid areas of Jordan

Omary, Areen

doi:10.1007/s11056-011-9251-2

Cited by 30 publications

(24 citation statements)

References 20 publications

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“…Foliar-P values were similar to the adequate ranges cited in Tausz et al (2004), but higher than both normal ranges reported by Stefan et al (1997), and the values found by other authors (except Omary, 2011). This contrasts with some studies that refer to the interference in P availability in calcareous soils, as is our case, due to the lower solubility of the soil P-Ca compounds frequent in limestone media (Rapp et al, 1999;Papatheodorou and Stamou, 2004).…”

Section: Mean Leaf-nutrient Concentrationssupporting

confidence: 68%

“…is a native tree of the western and central Mediterranean Basin, covering more than 25,000 km 2 and dominating forest formations in semiarid and dry sub-humid areas (Quezel, 2000). This species has been extensively used for afforestation and reforestation schemes in drier Mediterranean areas for many decades (Maestre and Cortina, 2004;Omary, 2011). Its drought tolerance and fast growth (pioneer species) have led to its use outside its range in high-density plantations for controlling soil erosion in degraded lands and to facilitate succession toward later-successional communities or species such as oaks (Pausas et al, 2004;Prévosto et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

“…Other authors have investigated the nutrient cycling and foliar status for macroand micronutrients in an urban forest of Aleppo pine in Athens (Michopoulos, 2007). Recently, Omary (2011) analyzed the leafmacro-and micronutrient concentration of semiarid Aleppo pine plantations under different aspects and slope positions in Jordan.…”

Section: Introductionmentioning

confidence: 99%

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Monthly foliar-nutrient pattern in a semiarid Aleppo pine plantation five years after thinning

Jiménez

Reyes

2015

Forest Ecology and Management

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Section: Mean Leaf-nutrient Concentrationssupporting

confidence: 68%

Section: Introductionmentioning

confidence: 99%

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Monthly foliar-nutrient pattern in a semiarid Aleppo pine plantation five years after thinning

Jiménez

Reyes

2015

Forest Ecology and Management

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“…Microtopographic positions (upland and lowland areas) within a site affect hydrologic conditions [42]. As a result, within a species, individual tree growth rates may vary significantly [42,43].…”

Section: Vegetation Composition and Structurementioning

confidence: 99%

“…As a result, within a species, individual tree growth rates may vary significantly [42,43]. To minimize the confounding effects of soil moisture and planting densities, upland and lowland areas were selected within each habitat under restoration (0-, 3-and 5-year-old) based on a soil survey done on the entire Buffelsdraai Landfill Site [41] and in the reference habitat, in the upper slopes and riparian area.…”

Section: Vegetation Composition and Structurementioning

confidence: 99%

An Assessment of a Community-Based, Forest Restoration Programme in Durban (eThekwini), South Africa

Mugwedi

Egoh

Sershen

et al. 2017

Forests

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Abstract:The restoration of degraded forests to enhance biodiversity, ecosystem services, as well as climate change mitigation and adaptation is now a major priority in cities around the world. This study evaluated the success of the Buffelsdraai Landfill Site Community Reforestation Project in Durban, South Africa, by assessing ecological attributes. Measures of plant richness, diversity, vegetation structure, invasive alien plants (IAPs) and ecological processes were contrasted across a chronosequence of habitats under restoration (0-year-old, 3-year-old and 5-year-old) and compared with a reference forest habitat (remnant natural forest). Native tree species recruitment and vegetation structure increased with restoration age. Ecological processes, represented by the composition of pollination and seed dispersal traits in all of the habitats under restoration, were similar to the reference habitat. However, low tree density and an increase in IAP cover with an increase in restoration age were identified as threats to reforestation success. We recommend enrichment planting and an effective IAP management strategy to promote more rapid habitat restoration while reducing site maintenance costs. Enrichment planting should not only focus on increasing tree species density and richness, but also on the inclusion of species with missing pollination and seed dispersal categories.

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Controlling factors of plant community composition with respect to the slope aspect gradient in the Qilian Mountains

et al. 2019

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Slope aspect can affect soil temperature and soil type distribution, which, in turn, is likely to influence plant community composition. Three Qilian mountains, located in the northeastern part of the Qinghai–Tibetan Plateau, China, with four distinct slope aspects including south‐facing (SF), southwest‐facing (SW), northwest‐facing (NW), and north‐facing (NF) slope aspects, were studied to investigate the impact of slope aspect on plant assemblages. The results indicated that the environmental conditions were favorable under the NF and NW slope aspects as the soil water, soil organic carbon (SOC), and soil total nitrogen (STN) contents were significantly higher, and soil temperature (ST) and soil bulk density (SBD) were significantly lower than under the SF and SW aspects. Under all slope aspects, however, SOC, STN, and soil total phosphate in the top 0.2 m of topsoil accounted for about 60% of its total quantity, to a soil depth of 0.6 m. The plant communities on the SF and SW slopes were found to be primarily composed of Poa pratensis, Potentilla anrisena, and Carex aridula. In contrast, the plant community on the NW slope was mainly composed of Kobresia humilis, Carex crebra, and Potentilla bifurca, while on the NF slope it was mainly composed of Picea crassifolia, Carex scabrirostris, and Polygonum macrophyllum. The order of the influence of environmental factors on species distributions was ST > SBD > sand > STN. Results suggest that the slope aspect has an important role in the regulation of the soil environment and plant assemblages and that ST and SBD were the main factors influencing plant community composition. Furthermore, evidence from this study suggests that these mountains will become increasingly vulnerable to global warming. Thus, the plant community composition on these mountains must be monitored continuously in order to allow for strategic adaptive management.

show abstract

Effects of aspect and slope position on growth and nutritional status of planted Aleppo pine (Pinus halepensis Mill.) in a degraded land semi-arid areas of Jordan

Cited by 30 publications

References 20 publications

Monthly foliar-nutrient pattern in a semiarid Aleppo pine plantation five years after thinning

Monthly foliar-nutrient pattern in a semiarid Aleppo pine plantation five years after thinning

An Assessment of a Community-Based, Forest Restoration Programme in Durban (eThekwini), South Africa

Controlling factors of plant community composition with respect to the slope aspect gradient in the Qilian Mountains

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