Effect of man-made disturbances on understory plant richness of oak forests in Iran

Rad, Javad Eshaghi; Valadi, Gelare; Zargaran, Mohammad Reza

doi:10.1515/foecol-2017-0008

Cited by 4 publications

(2 citation statements)

References 28 publications

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“…In places with a lower penetration resistance value, the amount of organic matter increases. The chemical composition and physical state of the substrate varies, and the heterogeneity increases (Heuvelink and Webster, 2001;Medvedev, 2010;Rad et al, 2017).…”

Section: Discussionmentioning

confidence: 99%

Soil heterogeneity after recultivation: ecological aspect

2018

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The study subject was the soil heterogeneity at a recultivation site Nikopol manganese-ore basin (Pokrov, Ukraine). The soils at the locality are sod lithogenic soils developed on gray-green clays. The study ran by applying soil penetration resistance indices. The penetration resistance was measured across a regular grid of 7 × 15 points (21 × 45 m). The distance between the measurement points was 3 m. The parameters were recorded at every 5 cm to a depth of 50 cm. The environmental parameters were determined by phytoindication. Geostatistical analysis showed the average level of spatial dependence of soil penetration resistance. According to the features of the profile variation in penetration resistance with the depth, the measurement points have been divided into three clusters. The clusters formed morphologically homogeneous soil areas. These areas significantly differed in their soil acidity and in nitrogen content in soil.

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Section: Discussionmentioning

confidence: 99%

Soil heterogeneity after recultivation: ecological aspect

2018

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“…Brazilian scientists investigate the role of earthworms in soil formation (Zúñiga et al, 2013), the effect of worms on quality characteristics of soils (Bartz et al, 2013). Iranian scientists conduct researches connected with the influence of the climate humidity grade during soil-forming processes of loess soils (Khormali et al, 2012), micromorphological aspects of the development of forest soils evolved from eruptive rocks in Lahidzhany (Ramezanpour, Pormasoumi, 2012) influence of technogenic disturbances on understory of oak forests (Eshaghi et al, 2017). German scientists investigate the relationship between macropores of the soil and its hydrological properties (Bogner et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

The Influence of the Slope Exposure on the Soil Aggregation and Structure, Water Stability of Aggregates, and Ecological Microstructure Formation of the Ravine Forest Soils in Pre-Dnipro Region (Ukraine)

Bozhko

Bilova

2020

Ekológia (Bratislava)

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AbstractThe soil aggregation and structure, water stability of aggregates, and peculiarities of microstructure formation of the ravine forest soils in Dnipropetrovsk region on the example of the northern variant of the ravine forest “Kapitanivskiy” have been identified. The soil properties of southern and northern ravine exposures have been compared. The soil structure, aggregate composition, water stability of aggregates as well as soil-forming processes of the ravine ecosystem have been analyzed. Micro-morphological studies have shown a high degree of aggregation of the upper (0–60 cm) horizons of the soil profile. The structure-forming process is of a zoogenic origin. Aggregates of coprolite nature contain well-disintegrated plant remains. Dark gray, almost black color along the entire area of the micromorphological slide is due to a large amount of organic compounds, which indicates active processes of humification. Fine-dispersed humus consists of a large number of evenly spaced humus clusters. The type of humus is mull. The skeleton consists of minerals of various sizes, dominated by quartz and feldspars. Plasma is humus-clay, homogeneous throughout the entire slide, anisotropic with speckled glowing. Microstructure is mainly aggregated and, in some places, spongy, depending on a microzone of the soil slide. Elemental microstructure is of plasma-silty type. The area of the visible surface of the pores in the upper horizons of the soil profile is fairly large (40%). Pores are round and elongated, of regular shape, here and there with remains of small invertebrates. The deeper the soil slide is, the smaller the area of visible pores along with aggregation becomes. Correlating with micromorphological characteristics, water resistance of structural aggregates reaches very high (90.01% ± 3.07) values in the upper horizons of the soil slide, decreasing at depths. The coefficient of pedality is rather high (7.83 ± 0.81) in the upper horizons, decreasing at depths.

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Impacts of Industrialization on Plant Species Composition, Diversity, and Tree Population Structure in Tropical Moist Deciduous Forest in Bangladesh

Roshni

Hasan

Akter

et al. 2022

International Journal of Forestry Research

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Industrial activities have various effects on biodiversity, posing significant threats to forest ecosystems. The current study describes the species composition, taxonomic diversity, and stand structure at Bhawal Sal forest, Gazipur, Bangladesh, as they are affected by industrialization. To achieve the goal, 30 different categorized industries within the forest were considered sampling points and three distance gradient sites viz. Site-1 = Adjacent to industries (0 m), Site-2 = 160 m distance and Site-3 = 320 m distance from industries were designated as treatments. A total of 90 quadrate plots (10 m × 10 m) were taken randomly, of which 30 plots were from each site. Through forest inventory, 46 species (24 trees, 8 shrubs, 5 climbers, and 9 saplings) were recorded from three sites. The study revealed that the stand density and basal area of mature trees (257 stems ha−1 and 8.06 ± 0.60 m2·ha−1) at Site-1 were significantly lower due to diverse industrial operations than other sites. Statistically, all the biodiversity indices of mature trees; Shannon–Wiener’s index (1.72), Simpsons index (0.82), Margalef’s index (1.38), Pielou’s evenness Index (0.39) was found to be lower at proximity to industries. The lowest species richness (12) of all plants was recorded from Site-1. However, the diameter and height distributions of Site-1 comprised young (10–20 cm·dbh) to medium-sized (20.1–30 cm·dbh) trees, while the medium to large sized (>30 cm·dbh) trees was contained at Site-3 in this study. The population structure of tree species at Site-1 also showed a fluctuating curve. Overall, this study highlights that plant ecosystems and tree population structure have declined tremendously due to industrialization. Hence, the current research could be significant for developing the management framework for the disturbed deciduous forest.

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Effect of man-made disturbances on understory plant richness of oak forests in Iran

Cited by 4 publications

References 28 publications

Soil heterogeneity after recultivation: ecological aspect

Soil heterogeneity after recultivation: ecological aspect

The Influence of the Slope Exposure on the Soil Aggregation and Structure, Water Stability of Aggregates, and Ecological Microstructure Formation of the Ravine Forest Soils in Pre-Dnipro Region (Ukraine)

Impacts of Industrialization on Plant Species Composition, Diversity, and Tree Population Structure in Tropical Moist Deciduous Forest in Bangladesh

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