scholarly journals The Landscape Structure of the Dnipro River Islands in Kyiv, Ukraine: the Venetsiansky (Hydropark) Island Case Study

2021 ◽  
Author(s):  
Anastasiia-Olena Pozharska
Keyword(s):  
Land Cover ◽  
Landscape Structure ◽  
Parent Material ◽  
Science Method ◽  
Structural Part ◽  
River Islands ◽  
Current State ◽  
Genetic Landscape ◽  
Information Collecting ◽  
Landscape Map

The article studies the Venetsiansky (Hydropark) Island (the Dnipro River, Kyiv, Ukraine) landscape structure applying the genetic landscape science method and the European landscape classification (LANMAP) approach. The aim of the article is to determine the best way to study the river islands landscapes analyzing the Venetsiansky Island landscape structure by the both methods. Methodology. The genetic landscape science method consists in the next steps: 1) the island’s territory information collecting; 2) the preliminary landscape map creating; 3) field study; 4) the final landscape map creating. The LANMAP method consists on: 1) the climate study; 2) the altitude study; 3) the parent material study; 4) the land cover study. The results. The genetic landscape science method demonstrates that the Venetsiansky Island is not a landscape, but a structural part of the landscape – the tract. The LANMAP study reveals that the Venetsiansky Island is naturally homogeneous, but land cover differs. The conclusion. The both methods’ study shows that the river island cannot be the entire landscape by the natural criteria, but only the part of it. The genetic landscape science explores the landscape forming while the LANMAP reveals the current state of the landscape.

scholarly journals LAND COVER DYNAMICS AND LANDSCAPE STRUCTURE IN THE AREA SURROUNDING WATER RESERVOIRS, MOUNTAINOUS REGION OF RIO DE JANEIRO

FLORESTA ◽  
2020 ◽  
Vol 50 (4) ◽  
pp. 1808
Author(s):  
Lucas De Siqueira Cardinelli ◽  
José Marinaldo Gleriani ◽  
Sebastião Venâncio Martins
Keyword(s):  
Land Cover ◽  
Landscape Structure ◽  
Rio De Janeiro ◽  
Forest Cover ◽  
Water Area ◽  
Mountainous Region ◽  
Water Reservoirs ◽  
Landsat Images ◽  
Surrounding Water ◽  
Land Cover Dynamics

The aim of this study is to evaluate land cover dynamics and landscape structure in the area surrounding two water reservoirs built-in 2009 for energy production, in the mountainous region of the State of Rio de Janeiro (Serra Fluminense). The analysis was developed through the interpretation of Landsat images from 2003, 2009, and 2013, considering the following land cover classes: early successional forest, mid successional forest, pasture, pasture with shrubs and trees, geological outcrop, urban area, and water area. We used thematic maps to determine landscape metrics of size and proximity in the reservoirs catchment area and the Permanent Preservation Area (PPA). At catchment level, pasture was predominant, a consequence of the extensive livestock production carried out in the whole watershed. During the evaluated period, the forest area remained consistent, however, fragmented in many small patches of mid successional forest. The average patch area of mid successional forest is three times the size of the early successional forest patches. For neither forest land cover classes, no significant variations through time in area or isolation were identified. On the PPA, an overall reduction of the forest cover was registered before the construction of the reservoir. However, from 2009 to 2013, after the enclosure of PPA areas, the forest cover increased 35% via assisted natural regeneration, suggesting a high potential for cost-effective restoration in the region.

scholarly journals Investigation of Sinkhole Formation with Human Influence: A Case Study from Wink Sink in Winkler County, Texas

2020 ◽  
Vol 12 (9) ◽  
pp. 3537
Author(s):  
Shannon English ◽  
Joonghyeok Heo ◽  
Jaewoong Won
Keyword(s):  
Land Cover ◽  
Climate Changes ◽  
Meteoric Water ◽  
Oil And Gas ◽  
Water Infiltration ◽  
Direct Result ◽  
Land Cover Changes ◽  
Hydrologic Systems ◽  
Current State

The formation of sinkholes in Winkler County, Texas is concerning due to the amount of oil and gas infrastructure and the potential for catastrophic losses. Evidences of new and potential sinkholes have been documented, and determining the cause of these sinkholes is paramount to mitigate the devastating consequences thereof. Studies have shown that the Wink sinkholes result from both natural and anthropogenic influences. Data depicting land-cover changes, alterations in the hydrologic systems, climate changes, and oil and gas activity were analyzed in an effort to better understand the link between these processes and sinkhole formation. Results indicate that the combination of these processes lead to the current state. Land cover changes were highest in shrub versus grasses, undeveloped to developed and croplands. Rises in temperature and a decrease in precipitation indicate a shift towards a more arid climate. Changes to the hydraulic system are a direct result of these land cover changes while the groundwater quality depicts an environment prone to dissolution. Historical oil and gas activities have created pathways of meteoric water infiltration to the underlying limestone and evaporite formation. The combination of these processes create an environment that accelerates sinkhole formations. Understanding these processes allows for the development and implementation of better land practices, better groundwater protections, and the need for monitoring and maintaining aging oil and gas infrastructure.

scholarly journals Estimation of forest cover restoration damaged by Siberian silkmoth using remote sensing data and maps

2019 ◽  
Vol 75 ◽  
pp. 02005
Author(s):  
Elena Fedotova
Keyword(s):  
Remote Sensing ◽  
Land Cover ◽  
Tree Species ◽  
Forest Cover ◽  
Remote Sensing Data ◽  
Deciduous Forests ◽  
Sensing Data ◽  
Current State

The current state of the land cover has been estimated in the territories where in different years (1885, 1955, 1995) the forests were damaged by Siberian silkmoth. Dark-needle taiga is restored through the change of tree species. In 20 years in areas of dark-needle taiga there are graminoid communities, in 60 years we have deciduous forests there, and in 130 - dark needle forests, but not everywhere.

scholarly journals Assessing Impacts of Urban Form on Landscape Structure of Urban Green Spaces in China Using Landsat Images Based on Google Earth Engine

2018 ◽  
Vol 10 (10) ◽  
pp. 1569 ◽  
Author(s):  
Conghong Huang ◽  
Jun Yang ◽  
Peng Jiang
Keyword(s):  
Land Cover ◽  
Landscape Structure ◽  
Urban Form ◽  
Google Earth ◽  
Green Spaces ◽  
Road Density ◽  
Urban Green ◽  
Urban Green Spaces ◽  
Google Earth Engine ◽  
Land Cover Maps

The structure of urban green spaces (UGS) plays an important role in determining the ecosystem services that they support. Knowledge of factors shaping landscape structure of UGS is imperative for planning and management of UGS. In this study, we assessed the influence of urban form on the structure of UGS in 262 cities in China based on remote sensing data. We produced land cover maps for 262 cities in 2015 using 6673 scenes of Landsat ETM+/OLI images based on the Google Earth Engine platform. We analyzed the impact of urban form on landscape structure of UGS in these cities using boosted regression tree analysis with the landscape and urban form metrics derived from the land cover maps as response and prediction variables, respectively. The results showed that the three urban form metrics—perimeter area ratio, road density, and compound terrain complexity index—were all significantly correlated with selected landscape metrics of UGS. Cities with high road density had less UGS area and the UGS in those cities was more fragmented. Cities with complex built-up boundaries tended to have more fragmented UGS. Cities with high terrain complexity had more UGS but the UGS were more fragmented. Our results for the first time revealed the importance of urban form on shaping landscape structure of UGS in 262 cities at a national scale.

Interactions between land use/land cover change, forest fires and landscape structure in Sierra de Gredos (Central Spain)

2006 ◽  
Vol 33 (3) ◽  
pp. 212-222 ◽  
Author(s):  
OLGA VIEDMA ◽  
JOSÉ M. MORENO ◽  
IGNACIO RIEIRO
Keyword(s):  
Land Use ◽  
Land Cover ◽  
Land Cover Change ◽  
Landscape Structure ◽  
Landscape Patterns ◽  
Land Use Land Cover ◽  
Central Spain ◽  
Lulc Change ◽  
Burned Areas ◽  
In Fire

In fire-prone areas, like the Mediterranean, land abandonment and forestation may interact with fire to alter landscape properties and eventually fire hazard and occurrence. However, the spatial interactions among the two processes (land-use/land cover change [LULC] and fire) are poorly known. Here, we analysed the relative effect of LULC change and fire on the landscape structure of an area of Central Spain frequently affected by fire. A series of Landsat MSS images from 1975 to 1990 was analysed to quantify annual changes in LULC, map fire perimeters and evaluate the changes in landscape properties. The temporal dynamics were analysed by annually computing the fraction occupied by each LULC type and landscape structural properties (number, size, shape and arrangement of patches) that might play a role in fire propagation. All of these were calculated separately for the unburned or the burned areas during the study period, as well as for the entire area. At the whole landscape level, or in the unburned area, LULC changes were small, yet the two more flammable LULC types tended to increase, and the landscape tended to become more homogeneous. In the burned area, the area covered by pine woodlands tended to decrease, and that covered by shrublands to increase. Burned areas turned into shrublands only five years after fire. Landscape indices indicative of reduced fragmentation were also found. Both LULC change and fire altered landscape patterns in the whole area to create a less fragmented and more contiguous landscape than in 1975. The changes induced in the whole landscape by fire, in spite of the overall low disturbance rate, were sufficient to closely determine the changes in landscape composition (LULC types) and patterns.

scholarly journals RESEARCH OF THE CHANGE DYNAMICS OF THE AREA OF KIEV GROUP OF ISLANDS OF THE DNIEPER

2019 ◽  
pp. 55-62 ◽  
Author(s):  
O. Tomchenko ◽  
L. Mazurkiewicz ◽  
A. Malets ◽  
I. Pidlisetska
Keyword(s):  
Remote Sensing ◽  
Human Impact ◽  
Landscape Structure ◽  
Historical Reconstruction ◽  
Aerospace Materials ◽  
Earth Remote Sensing ◽  
Anthropogenic Changes ◽  
Change Dynamics ◽  
Geoinformation Technologies ◽  
Landscape Map

The study is based on the reconstruction of the historic appearance of the Kiev group of islands of the Dnieper on the basis of the use of archival and modern aerospace materials. The purpose of the study is the justification for the introduction of the protection regime for the Kiev group of islands of the Dnieper that are under greater human impact. To preserve landscapes the Velykyy Pivnichnyy Island, an ecological pathway is proposed and the landscape map scheme of the Velykyy Pivnichnyy Island is developed on the basis of the application of geoinformation technologies (GIS) and Earth Remote Sensing (RS) techniques. Mapping the historical reconstruction of the old Dnipro’s riverbed allowed displaying the historical look of the Dnipro River to the formation of a reservoir. During the study, the significant changes in the area of the Kiev archipelago’s islands in the period from 1942 to 2017 were installed. Determined that the islands began to decrease as a result of anthropogenic changes (alluvial sand), which negatively affected the state of their biotopes. The work is devoted to the analysis of area changes in the Kiev group of islands of the Dnieper (16 largest islands) and environs for 75 years and to the detailed study of the landscape structure of the Velykyy Pivnichnyy Island and its island – the satellite Ptashynyy that emerged recently and continues to intensively form. A detailed cartographic scheme for the landscapes of the Velykyy Pivnichnyy Island is created and a new ecological pathway is developed.

Sign in / Sign up

Export Citation Format

Share Document