Throughfall and throughfall spatial variability in Madrean oak forest communities of northeastern Mexico

Abstract The succession of semi-natural xeric calcareous grassland plant communities toward deciduous forest communities is poorly studied in Latvia. There is insufficient knowledge on the natural transformation of dry calcareous grasslands of Festuco-Brometea into thermophilous quasi-climax oak forest communities of Quercetea pubescentis that are very rare in Latvia. In this paper, a geobotanical study is presented that included studies of soils, tree age, spatial pattern of trees, vegetation composition of different succession stages, and analysis of environmental factors. The study was conducted in the Abava Valley, West Latvia, an area that is unique with species-rich xeric calcareous Festuco-Brometea grasslands, thermophilous oak forests dominated by Quercus robur, and intermediate secondary succession stages with young to medium-aged Juniperus communis and Pinus sylvestris formations.

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Phytocenological and edaphic characteristics of sessile oak forests on Miroc Mt in northeastern Serbia

Glasnik Sumarskog fakulteta ◽

10.2298/gsf120425001c ◽

2013 ◽

pp. 27-55

Author(s):

Rade Cvjeticanin ◽

Olivera Kosanin ◽

Milun Krstic ◽

Marko Perovic ◽

Marijana Novakovic-Vukovic

Keyword(s):

Beech Forest ◽

Quercus Petraea ◽

Soil Types ◽

Oak Forests ◽

Oak Forest ◽

Forest Communities ◽

Beech Forests ◽

Sessile Oak ◽

Management Measures ◽

Natural Stands

This research was carried out in natural stands of sessile oak (Quercus petraea agg. Ehrendorfer 1967) on Miroc mountain. Three comunities were investigated: Pure sessile oak forest (Quercetum montanum Cer. et Jov. 1953. s.l.), sessile oak-common hornbeam forest (Querco-Carpinetum moesiacum Rud. 1949. s.l.) and sessile oak-balkan beech forest (Querco-Fagetum Glis. 1971). Pure sessile oak forests are found on the following soils: dystric ranker and acid cambic soil on sandstone, dystric ranker and acid cambisols on phyllite, and acid cambic soil on schists. Sessile oak-hornbeam forests grow on sandstone, granite and schists. Sessile oak-beech forests are found on acid cambisol on phyllite and sandstone conglomerate. Various ecological conditions (exposition, slope, altitude, soil types and bedrock) on Mt Miroc caused the occurence of diverse sessile oak forest communities, while different states of these forest stands resulted from the implementation of management measures.

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Litterfall deposition and nutrient return in pine-oak forests and scrublands in northeastern Mexico

Madera y Bosques ◽

10.21829/myb.2019.2531514 ◽

2019 ◽

Vol 25 (3) ◽

Author(s):

Humberto González-Rodríguez ◽

Juan Manuel López-Hernández ◽

Roque Gonzalo Ramírez-Lozano ◽

Marco Vinicio Gómez-Meza ◽

Israel Cantú-Silva ◽

...

Keyword(s):

Organic Matter ◽

Pine Forest ◽

Oak Forests ◽

Oak Forest ◽

Experimental Plot ◽

Nutrient Input ◽

Nutrient Return ◽

Reproductive Structures ◽

Northeastern Mexico ◽

Fallen Leaves

Litterfall and its decomposition represents the main nutrient input in forest soils whereby organic matter is cycled, thus influencing the circulation of nutrients in ecosystems. Therefore, the aim of this study was to determine litterfall nutrient-input and deposition via fallen leaves. Litterfall was collected at three sites: 1) a pine-oak forest, 2) an ecotone in a transition zone between a pine-oak forest and a piedmont shrubland, and 3) a thorn scrub in the Tamaulipan thorn-scrub vegetation community. At each site, an experimental plot was selected to allocate ten litter canisters to collect litterfall. Total litterfall deposition was highest at the ecotone, followed by the thorn scrub and the pine-oak forest (hereupon, the pine-oak forest will be referred to as “pine forest” for simplicity) (706.0 g m-2 year-1, 495.6 g m-2 year-1, and 483.0 g m-2 year-1, respectively). Leaf litter abundance was greater than that of twigs, reproductive structures, or miscellaneous components (385.3 g m-2 year-1, 84.6 g m-2 year-1, 55.7 g m-2 year-1, and 35.8 g m-2 year-1, respectively). Total deposition of nutrients (mg m-2 year-1)varied as follows: Ca, from 3.7 (pine forest) to 13.5(thorn scrub); K, from 1.0 (pine forest) to 3.8 (ecotone); Mg, from 0.5 (pine forest) to 1.3 (ecotone); N, from 2.7 (pine forest) to 8.3 (ecotone); P, from 0.1 (pine forest) to 0.3 (ecotone); Cu, from 1.0 (pine forest) to 2.9 (ecotone); Fe, from 35.2 (pine forest) to 89.3 (ecotone); Mn, from 27.7 (pine forest) to 71.8 (ecotone), and Zn from 7.3 (thorn scrub) to 7.8 (ecotone). Litterfall and nutrient input was more abundant during the months of winter than at any other time of the year.

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Dynamics of Pure and Mixed Populations of Desmodium glutinosum and D. nudiflorum in Natural Oak-forest Communities

The American Midland Naturalist ◽

10.2307/2424541 ◽

1975 ◽

Vol 94 (1) ◽

pp. 99 ◽

Cited By ~ 2

Author(s):

William G. Smith

Keyword(s):

Oak Forest ◽

Forest Communities ◽

Mixed Populations

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Syntaxonomy and site ecology of mixed oak forest communities in the Inner and Intermedial Alps of Tyrol (Austria)

Botanica Helvetica ◽

10.1007/s00035-008-0827-1 ◽

2008 ◽

Vol 118 (1) ◽

pp. 21-43 ◽

Cited By ~ 5

Author(s):

Susanne Wallnöfer ◽

Manfred Hotter

Keyword(s):

Oak Forest ◽

Forest Communities ◽

Site Ecology

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Secondary Serpentine Forests of Poland as a Refuge for Vascular Flora

Diversity ◽

10.3390/d13050201 ◽

2021 ◽

Vol 13 (5) ◽

pp. 201

Author(s):

Karol Bubel ◽

Kamila Reczyńska ◽

Paweł Pech ◽

Krzysztof Świerkosz

Keyword(s):

Endangered Species ◽

Vascular Plant ◽

Light Availability ◽

Diversity Indices ◽

Rare Plants ◽

Soil Reaction ◽

Oak Forest ◽

Secondary Forests ◽

Forest Communities ◽

Nature Protection

The aim of present study was to determine the role of secondary, serpentine forests in Poland in the protection of rare vascular plant species. On the basis of 95 phytosociological relevés collected between 2009 and 2020, we identified the main types of serpentine forest communities and assessed their diversity indices. Ordination methods were used to determine the relationship between the degree of transformation of forest communities (reflected by the occurrence of alien and nitrophilic species) and the presence of endangered species in their undergrowth including the environmental background. We distinguished four types of communities: thermophilic and mesophilic pine plantations (both secondary in origin) as well as thermophilous oak forest and acidophilous oak–hornbeam forest (semi-natural and close to natural in character, respectively). Rare and endangered species were unevenly distributed and concentrated in oak forest (16 species) and thermophilic pine plantation (nine species). The endangered species mainly preferred sites at higher altitudes and with higher slope inclination, light availability, and soil reaction. We did not confirm that the presence of alien or nitrophilic species negatively influenced the ability of studied forests to preserve rare plants. As secondary forests can still harbor endangered species, they should fulfil complementary functions in the nature protection system.

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Ten Native Tree Species for potential use in Soil Bioengineering in northeastern Mexico

Botanical Sciences ◽

10.17129/botsci.2131 ◽

2019 ◽

Vol 97 (3) ◽

pp. 291

Author(s):

Rebeca Zavala González ◽

Israel Cantú-Silva ◽

Laura Sánchez-Castillo ◽

Humberto González-Rodríguez ◽

Tetsuya Kubota ◽

...

Keyword(s):

Tensile Strength ◽

Modulus Of Elasticity ◽

Oak Forest ◽

Nuevo Leon ◽

Acacia Berlandieri ◽

Soil Bioengineering ◽

Group I ◽

Nuevo León ◽

Northeastern Mexico ◽

Tamaulipan Thornscrub

Background: Due to causes such as small-scale earthquakes or the increasing amount of heavy rainfall extreme events, many slopes are potentially unstable. Soil bioengineering is an effective tool for treatment of a variety of unstable and/ or eroding sites.Question and hypothesis: Maximum force to breakage of the roots is influenced by diameter.Tensile strength and modulus of elasticity of roots is different between species of the two different ecosystems: Tamaulipan thornscrub and Pine-oak forest.Studied Species: Site 1: Acacia berlandieri, Cordia boissieri, Acacia rigidula, Havardia pallens, and Acacia farnesiana; Site 2: Quercus rysophylla, Pinus pseudostrobus, Quercus canbyi, Quercus polymorpha, and Arbutus xalapensis.Study area and dates: Tamaulipan thornscrub in Northeastern Mexico (Linares, Nuevo León), from May to July 2016; and Pine-Oak forest in Sierra Madre Oriental, Iturbide, Nuevo Leon, from September to October 2016.Methods: The species considered were selected based on their native characteristics (natural distribution, abundance in the area and widespread existence on slopes). The tests were conducted with the Universal Testing Machine Shimadzu type SLFL-100KN.Results: The relationships between tensile strength (Ts) and diameters of the studied species, and root diameters and modulus of elasticity (Eroot) were negative.The minimum and maximum values of tensile strength varied from 1.86 N / mm2 in C. boissieri to 44.65 N/mm2 in A. rigidula.Conclusions: Acacia berlandieri showed the highest tensile strength among all species of the two ecosystems, in the diametric group I (0.1 to 2.9 mm).

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