scholarly journals Space structure of forest shelterbelt in Lugansk region agrocenosis

2018 ◽  
Vol 7 (4) ◽  
pp. 47-55
Author(s):  
Олеся Грибачева ◽  
Olesya Gribacheva
Keyword(s):  
Spatial Structure ◽  
Tree Species ◽  
Life Forms ◽  
Middle Part ◽  
Space Structure ◽  
Forest Belt ◽  
Average Height ◽  
White Birch ◽  
Norway Maple ◽  
Shelter Belt

It is known that field-protective afforestation is carried out on agricultural lands for protection from abiotic and biotic factors such as dry winds, droughts, soil erosion, and also anthropogenic ones. To study spatial structure of the field-protective belts, test areas were laid in accordance with OST 56-69-83, where the following species were studied: species composition of woody-shrubby and grassy vegetation, continuous enumeration of forest stands. Based on the results of the enumeration taxation, composition of shelter belt, diameter and average height, and state of the stand according to Kraft were determined. There were no archival data on the landing time and the age of investigated forest belts. Field protection zone in the vicinity of Zolotarevka village is represented by the stand of the second generation of both seed and vegetative origin. It is located in Stanichno-Lugansky district of Lugansk region (Ukraine), in the vicinity of Zolotarevka village. Geographical coordinates of the location of the village are 48.90417º N, 39.79361º E. The main tree species (edificator) is represented by European white birch (Betula pendula Roth), planted in rows – 5 rows. The belt is not homogeneous in tree species, although initially it was created only from birch plants. In the first third of the forest belt in one vertical tier the birch is alternating with Norway maple, and then in the middle part there is European white birch. The main tree species in the second forest belt is the acicular plaque (Acer platanoides L.). At the point of contact of plants of indicated cenoses, despite the presence of a break in the work of engineering, there is mixing of these species in the first shelter belt, that is,Norway maple cut out other species of the indicated cenosis, including birch. Having studied the spatial structure and species diversity of plants of all life forms of field shelter belts (Zolotarevka village (Stanichno-Luhansky district of Lugansk region) one can conclude that it is necessary to consider these ecosystems in a sozological aspect.

Do species distribution models explain spatial structure within tree species ranges?

2009 ◽  
Vol 18 (6) ◽  
pp. 662-673 ◽  
Author(s):  
Daniel Montoya ◽  
Drew W. Purves ◽  
Itziar R. Urbieta ◽  
Miguel A. Zavala
Keyword(s):  
Spatial Structure ◽  
Species Distribution ◽  
Tree Species ◽  
Species Distribution Models ◽  
Distribution Models ◽  
Species Ranges

A Note on the Association of Fall Cankerworm (Alsophila pometaria (Harr.)) with Winter Moth (Operophtera brumata (Linn.)) (Lepidoptera: Geometridae)

1958 ◽  
Vol 90 (9) ◽  
pp. 538-540 ◽  
Author(s):  
C. C. Smith
Keyword(s):  
Tree Species ◽  
Life Histories ◽  
Quercus Rubra ◽  
Acer Platanoides ◽  
Operophtera Brumata ◽  
Ulmus Americana ◽  
Winter Moth ◽  
The Third ◽  
Norway Maple ◽  
Fall Cankerworm

The fall cankerworm, Alsophila pometaria (Harr.), and the winter moth, Operophtera brumata (Linn.), both feed to a great extent on the same tree species and prefer apple, Malus spp., red oak, Quercus rubra L., basswood, Tilia spp., white elm, Ulmus americana L., and Norway maple, Acer platanoides L. They also have similar life-histories and habits (Smith 1950 and 1953). Both lay their eggs on the trees in the fall and overwinter in this stage. The eggs hatch about the same time and the larvae of (both species mature about the third week in June. They drop to the ground and form cocoons at a depth of about an inch. The adults emerge about the same time, commencing usually during the last week in October and continuing until early December or until the ground freezes.

scholarly journals Assessment of land suitability for Norway maple and black locust plantations in the northeast of Iran

2018 ◽  
Vol 64 (No. 3) ◽  
pp. 129-138
Author(s):  
Bagherzadeh Ali
Keyword(s):  
Tree Species ◽  
Black Locust ◽  
Land Suitability ◽  
Semiarid Region ◽  
Parametric Approach ◽  
Analytic Hierarchy ◽  
Suitability Evaluation ◽  
Land Suitability Evaluation ◽  
The North ◽  
Norway Maple

In the present study the qualitative land suitability evaluation by parametric and analytic hierarchy process (AHP) approaches was investigated for two tree species including Norway maple and black locust in the Toroq watershed, a semiarid region, in the northeast of Iran. The values of land suitability indices by the parametric approach for Norway maple and black locust plantations ranged from 22.46 to 67.50 and 23.23 to 75.11 respectively, while by the AHP approach they varied between 35.91 and 84.58 for Norway maple and from 32.87 to 94.31 for black locust plantations. The suitability classes for both tree species by the parametric approach were classified into moderately suitable in the eastern part of the basin, and not suitable in the middle and western parts of the study area. According to the AHP approach the suitability classes varied from highly suitable in some parts in the east to moderately suitable in the middle, east and some parts in the west and not suitable in some parts in the north and southwest of the basin.

Effects of fenitrothion on the arthropod food of tree-foraging forest songbirds

1990 ◽  
Vol 68 (11) ◽  
pp. 2235-2242 ◽  
Author(s):  
Rhonda L. Millikin
Keyword(s):  
Active Ingredient ◽  
Significant Relationship ◽  
Tree Species ◽  
Abies Balsamea ◽  
Balsam Fir ◽  
Betula Papyrifera ◽  
White Birch ◽  
Forest Songbirds ◽  
The Impact

The impact of fenitrothion on the arthropod food of songbirds was measured using white birch (Betula papyrifera Marsh.) and balsam fir (Abies balsamea (L.) Mill.) branch sample and drop trays. Following ground application of fenitrothion at 293 g active ingredient/ha, there was a significant decrease in the biomass of arthropods as determined using branch samples from both tree species, but not until 5 days after the application (29% reduction for balsam fir, 35% for white birch). Samples from drop trays indicated an immediate kill of arthropods not associated with the tree. Most remaining arthropods on treated balsam fir trees were dead. These dead arthropods would not be suitable food for birds that require movement to detect their prey. There was no significant relationship between amount of deposit (treated trees only) and the reduction of arthropods for either tree species.

scholarly journals Ecologic salience and agreement on the identification of tree species from Brazilian Atlantic Forest

2010 ◽  
Vol 10 (1) ◽  
pp. 77-84 ◽  
Author(s):  
Natalia Hanazaki ◽  
Rogério Mazzeo ◽  
Alexandre Romariz Duarte ◽  
Vinícius Castro Souza ◽  
Ricardo Ribeiro Rodrigues
Keyword(s):  
Atlantic Forest ◽  
Local Knowledge ◽  
Tree Species ◽  
Species Abundance ◽  
Average Height ◽  
Brazilian Atlantic Forest ◽  
Community Based ◽  
Botanical Species ◽  
Community Based Conservation ◽  
High Diversity

This study aims to investigate the consensus among informants in the naming of tree species from a high diversity environment, the Brazilian Atlantic Forest (Sete Barras, SP), through a methodological procedure based on standardized stimuli. Seven selected local experts on tree species used for timber and handicrafts were asked to walk individually across the same area of 1.72 ha and identify and name all the known trees of more than 4 cm DBH (diameter at breast height) using common names. All trees were botanically identified, and their DBH and height were measured. The ecologic salience of tree species, expressed in terms of abundance, average height and DBH, was tested in relation to the informants' knowledge and species naming. The guided walks resulted on 708 identification events, with common names corresponding to 122 botanical species, or 68% of all tree species present. Both the reduced abundance and ecological salience of rare species can explain their recognition. The highest concordances in naming a tree were related only to the species abundance and not to their size (given by diameter and height). In some cases, there is no single common name for a botanical species, reflecting the intrinsic variation in local knowledge, which must be considered in ethnobotanical studies, in ecological assessments based on local knowledge, as well as in community-based conservation and management programs.

Tree species control and spatial structure of forest floor properties in a mixed-species stand

Ecoscience ◽  
1999 ◽  
Vol 6 (1) ◽  
pp. 79-91 ◽  
Author(s):  
Bernard Pelletier ◽  
James W. Fyles ◽  
Pierre Dutilleul
Keyword(s):  
Spatial Structure ◽  
Tree Species ◽  
Forest Floor ◽  
Mixed Species

Fine root lifespan and influencing factors of four tree species with different life forms

2020 ◽  
Vol 40 (9) ◽  
Author(s):  
于水强，王静波，郝倩葳，王维枫，王琪，詹龙飞 YU Shuiqiang
Keyword(s):  
Influencing Factors ◽  
Tree Species ◽  
Fine Root ◽  
Life Forms ◽  
Root Lifespan

Classifying forestland from model-generated tree species habitat suitability in the Western Ecoregion of Nova Scotia, Canada

2013 ◽  
Vol 43 (6) ◽  
pp. 517-527 ◽  
Author(s):  
Mark Baah-Acheamfour ◽  
Charles P.-A. Bourque ◽  
Fan-Rui Meng ◽  
D. Edwin Swift
Keyword(s):  
Nova Scotia ◽  
Tree Species ◽  
Habitat Suitability ◽  
Sugar Maple ◽  
Forest Succession ◽  
Red Maple ◽  
White Birch ◽  
Permanent Sample Plots ◽  
Natural Range ◽  
Hybrid Classification

Forestland classification is central to the sustainable management of forests. In this paper, we explore the possibility of classifying forestland from species–habitat–suitability indices and a hybrid classification of modeled data. Raster-based calculations of species–habitat–suitability were derived as a function of landscape-level descriptions of incident photosynthetically active radiation (PAR), soil water content (SWC), and growing degree-days (GDD) for southwestern Nova Scotia, Canada. PAR and SWC were both generated with the LanDSET model and GDD from thermal data captured with the space-borne MODIS sensor. We compared the distribution of predicted forestland types with the natural range of target species as found in the provincial permanent sample plots (PSPs). Reasonable agreement (≥50% accuracy) existed between some forestland types (e.g., red maple – white birch – red oak and balsam fir – red maple) and PSP-based assessments of species presence–absence. Agreement was noticeably lower for other forestland types, such as sugar maple – beech – yellow birch (<50% accuracy). This discrepancy is attributed to forest-forming factors not directly addressed by the model, e.g., forest succession, stand interventions, and disturbance. Their addition in the model could change the dynamics of tree-species preference in southwest Nova Scotia and is worth examining. True model inaccuracies accounted for about 0.3%–15.0% of the total reported error.

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