A comparative study on indigenous and exotic woody vegetation of three different church forest ecosystems in Gondar, Ethiopia

AbstractA major worldwide problem, especially from the perspective of preserving biodiversity and ecological stability (ES) of the landscape, is the significant gradual degradation and loss of habitats. In the context of ever-changing global conditions, the preservation of healthy ecosystems and their valuable services as well as the interconnection of patches of existing habitats should be encouraged. In Slovakia, conception of the Territorial System of Ecological Stability (TSES) was developed. Biodiversity conservation can be created by means of an integrated approach to management of the landscape and careful spatial planning respecting TSES. Land Consolidation (LC) projects, of which TSES constitutes a key part, are amongst the real planning and implementation tools in the Slovak Republic. Thus, TSES represents a real tool for implementation of landscape changes in order to strengthen ES and biodiversity of the landscape with regard to the current European trends in biodiversity policy. This article describes a Local Territorial System of Ecological Stability (LTSES) project developed as a part of LCs in the cadastral territory of Hody (Galanta, Slovak Republic). The aim was to create a functional proposal of LTSES with all basic types of proposals to strengthen biodiversity and ES of model territory – proposal for establishing new eco-stabilising elements – groups and strips of non-forest woody vegetation (NFWV), proposal for ecologically optimal land use, proposal for eco-stabilising measures in forest ecosystems and proposal for hydro-ecological measures.

Download Full-text

Comparative study of additive basal area of conifers in forest ecosystems along elevational gradients

Ecological Research ◽

10.1007/s11284-007-0338-3 ◽

2007 ◽

Vol 22 (3) ◽

pp. 439-450 ◽

Cited By ~ 29

Author(s):

Shin-ichiro Aiba ◽

Goro Hanya ◽

Riyou Tsujino ◽

Masaaki Takyu ◽

Tatsuyuki Seino ◽

...

Keyword(s):

Comparative Study ◽

Forest Ecosystems ◽

Basal Area ◽

Elevational Gradients ◽

Additive Basal Area

Download Full-text

Assessment of the nitrogen status of park forest ecosystems by phytoindication

Faktori eksperimental'noi evolucii organizmiv ◽

10.7124/feeo.v27.1288 ◽

2020 ◽

Vol 27 ◽

pp. 245-251

Author(s):

N. V. Miroshnyk

Keyword(s):

Forest Ecosystems ◽

Environmental Changes ◽

Atmospheric Precipitation ◽

Stable Condition ◽

Urban Ecosystem ◽

Woody Vegetation ◽

Grass Cover ◽

Natural Boundary ◽

Nitrogen Status

Aim. The aim is to assess the changes in the nitrogen regime of park ecosystems in Kyiv by tiers due to the supply of nitrogen with atmospheric precipitation. Methods. Applied methods of forestry, geobotany, phytoindications. Results. We have analyzed the number of nitrophilic stenobionts of woody vegetation and grass cover. The eutrophication trend is the same for both tiers of the studied ecosystems. Although in the grass cover the proportion of nitrophils is greater than in the woody one. In the natural boundary Lysa Gora nitrophil content is the highest among the studied ecosystems of the park (70% in the grass cover, 58.3% in the woody vegetation). Conclusions. Thus, 50% of the parks are in critical danger, 30% are in a threatened state, only the Pushcha-Voditsa parks are in a stable condition. A significant number of nitrophilic stenobiots were found in Kyiv parks (50–70%), and the grass cover is more plastic in terms of environmental changes than the tree. Keywords: eutrophication, park ecosystems, nitrophils, stenobionts, urban ecosystem.

Download Full-text

Changes in the underlying surface and vegetation in the Chornobyl Exclusion Zone during 1986−2017

Nuclear Power and the Environment ◽

10.31717/2311-8253.20.4.9 ◽

2020 ◽

Vol 19 (4) ◽

pp. 75-84

Author(s):

O. G. Tyshchenko ◽

◽

V. P. Landin ◽

Keyword(s):

Radioactive Waste ◽

Nuclear Power ◽

Forest Ecosystems ◽

Ground Surface ◽

Remote Sensing Data ◽

Underlying Surface ◽

Woody Vegetation ◽

Exclusion Zone ◽

Burned Areas ◽

Vector Maps

The analysis results of the type surface and vegetation changes in the Exclusion Zone of Chornobyl Nuclear Power Plant, for the period after accident in 1986 until 2017 are presented. In the article it is shown that after the Chornobyl accident in 1986, the largest changes occurred with vegetation on agricultural lands. Analysis of the current state of vegetation showed that the area of restored forest plantations on uncultivated lands amounted to –31% of the Chornobyl NPP Exclusion Zone. Studies have shown that fires cause great damage to the forest ecosystems. Forests and woody vegetation of natural regeneration damaged by the fire in the Chornobyl NPP Exclusion Zone as of 2017 amounted to 41.3 km2, which is about 4% of the area of forest vegetation. It is noted that the movement of certain volumes of radioactive waste from temporary storage points affect changes in the levels of pollution of environmental components in the Chornobyl NPP Exclusion Zone. Cartographic calculations showed that the areas allocated for the enterprises of the main and auxiliary cycle in the Chornobyl NPP Exclusion Zone occupy an area of about 56 km2 , of which 42% is covered with woody vegetation. The condition of such forested areas affects fire safety on stationary and temporary areas intended for localization of radioactive waste. It is stated about the expediency of organizing mineralized strips, conducting timely measures to care for plantations around such areas. Such measures are — felling of damaged stands, clearing the area of dead parts of trees, planting forests on burned areas. Maps obtained after the analysis and assessment of spatial heterogeneity of the territory are presented in the article. The maps show the location of areas of enterprises that may be sources of radioactive contamination and natural complexes that was changed. It created a set of digital raster and vector maps which reflect the structure of the study area for different periods. Vector maps were developed based on remote sensing data and fairly accurately reflect the modern structure of the territory, capture processes occurring within the territory. It concluded that the cartographic classification of objects on the ground surface and types of vegetation may be used for analyzing changes in the Exclusion Zone and unconditional resettlement of Chornobyl NPP, as well as parameterization of the type of underlying surface for assessment of environmental pollution. It is noted that the combination of the created cartographic material with the data of actual surveys of forest ecosystems makes it possible to more accurately determine the amount of bioresources of the Exclusion Zone in areas with high levels of pollution. The obtained cartographic materials make it possible to determine and display the modern spatial structure and characteristics on the Earth’s underlying surface and to calculate the areas in the changed territory.

Download Full-text