ASSESSMENT OF FACTORS OF LANDSCAPE CHANGE IN MOSAIC TYPE LANDSCAPE: A CASE STUDY OF VIDZEME, LATVIA

Author(s):  
Ivo Vinogradovs ◽  
Oļģerts Nikodemus ◽  
Guntis Tabors ◽  
Imants Krūze ◽  
Didzis Elferts

Landscape change has been extensively documented throughout rural Europe over the past decades. The dominating tendencies are intensification of agriculture and land marginalization. In territories of former USSR radical land use changes have shattered rural landscape structure throughout the 20th century, which in many cases have led to land marginalization in form of abandonment of agricultural lands and subsequent uncontrolled afforestation. This process is especially evident in mosaic type landscapes – landscapes of small intertwining structure of patches of agricultural land and forests. The paper presents the results of the study based on application of multinomial logistic regression and cross-analysis using binary logistic regression in R of important physical factors of landscape structure such as land quality, soil texture, slope, as well as land use patch size. Additionally certain human induced factors such as distance to closest paved road, cadastral plot size and availability of Single Area Payments are added for more accurate assessment of the driving forces of landscape change and possible vectors for supplementary studies. Data was gathered in intensive field surveys combined with analysis of high quality remotely sensed data. Results show strong interrelationship of several analyzed factors and thus calls for attention to further development of methodology.

MANUSYA ◽  
2006 ◽  
Vol 9 (4) ◽  
pp. 1-15
Author(s):  
Daranee Thavinpipathkul ◽  
Luksanawadee Tanamee

Social interaction refers to the communication among people within one particular area. This act can be recognized and done through simple talk or even through equipment that is commonly used these days, such as televisions, radios, telephones, and all kinds of transportation. Activities also help people to know and become a part of a community, by working and being involved in the same things, such as traditional community festivals, community development, and so on. These activities should be done continually as part of the system of social interaction. Social integrative mechanism means the existence of those who take part in running or working in a communication role, which leads to the interaction among people within a community; social control mechanisms such as laws and norms, organizations or groups within the community, including interest groups for economic or social benefit; communication, transportation, and meeting places such as a community centers. The definitions above are used to explain the patterns of social interaction and integrative mechanisms in communities in the northern Bangkok extended metropolitan region. Prachathipat, Klong-Song, Chiang-RakYai, and Pued-Udom in Pathumthani province were used as case studies. Research results reveal that communities in the northern Bangkok extended metropolitan region are transitioning from rural to urban type at different paces and to different degrees due to physical factors, i.e. , geographical setting, location, distance from the city, and accessibility. In addition, the differences are also due to socio-economic factors, i.e., age, sex, religion, educational level, occupation, income, and duration of stay of community residents, who are mostly comprised of two groups: old-timers and new-comers. In conclusion, three types of communities revealing different patterns of social interaction and integrative mechanisms are found in this area. The first type consists of communities exhibiting low-intensity land use, mostly as residential areas, located on agricultural land. Almost all of the residents are old-timers and have primary social interaction within the family and among friends. The level of social integration is high and integrative mechanisms are informal. The second type is communities with more intense and diverse land use than the first type. The old-timers in these communities begin to have "urban type" social interactions, with rather high levels of social integration through both formal and informal integrative mechanisms. The newcomers in these communities engage in "urban type" social interactions just to gain convenience and safety in living and working. The third are communities with highly intense and diverse activities and land use. Among old-timers in these communities, there is almost no trace of "rural type " social interaction, while integrative mechanisms are both formal and informal. Among newcomers, social interaction is the same as in the second type of community with a low level of integration and mostly formal integrative mechanisms.


2014 ◽  
Vol 7 (1) ◽  
pp. 23-44 ◽  
Author(s):  
Theo Van Der Sluis ◽  
Thanasis Kizos ◽  
Bas Pedroli

Abstract The Mediterranean landscape has been rapidly changing over the past decades. Many regions saw a population decline, which resulted in changing land use, abandonment of marginal lands and colonisation by shrubs and tree species. Typical features like farming terraces, olive yards, and upland grasslands have been decreasing over the past 50 years. This results in a declining biodiversity and loss of traditional Mediterranean landscapes. In this paper we assess the landscape changes that took place in two areas, in Portofino, on the Italian Riviera, and Lesvos, a Greek island near the Turkish coast. We compared land use maps and aerial photographs over the past decades to quantify the land use changes in these two areas. Additional information was acquired from farmers’ interviews and literature. We found that changes are related to societal changes in the appraisal of agricultural land uses, and to the urban expansion, tourism and recreation. These diffuse processes are a result of policy measures and autonomous societal transformations. This is confirmed by the results of two interview surveys: between 1999 and 2012 agricultural land use in Portofino regional Park and buffer zone further marginalised, and the associated landscape changes are perceived as a substantial loss of character and identity. This problem is emblematic for large parts of the Mediterranean. Comparing different landscapes reveal similar processes of landscape change, which can be related to similar driving forces. Based on such comparisons, we learn about possible trajectories of change, and ask for a comprehensive approach to land use management.


GeoJournal ◽  
2018 ◽  
Vol 84 (3) ◽  
pp. 555-570 ◽  
Author(s):  
Murilo Rodrigues de Arruda ◽  
Maja Slingerland ◽  
José Zilton Lopes Santos ◽  
Ken E. Giller

Author(s):  
V. N. Mishra ◽  
P. Kumar ◽  
D. K. Gupta ◽  
R. Prasad

Land use land cover classification is one of the widely used applications in the field of remote sensing. Accurate land use land cover maps derived from remotely sensed data is a requirement for analyzing many socio-ecological concerns. The present study investigates the capabilities of dual polarimetric C-band SAR data for land use land cover classification. The MRS mode level 1 product of RISAT-1 with dual polarization (HH & HV) covering a part of Varanasi district, Uttar Pradesh, India is analyzed for classifying various land features. In order to increase the amount of information in dual-polarized SAR data, a band HH + HV is introduced to make use of the original two polarizations. Transformed Divergence (TD) procedure for class separability analysis is performed to evaluate the quality of the statistics prior to image classification. For most of the class pairs the TD values are greater than 1.9 which indicates that the classes have good separability. Non-parametric classifier Support Vector Machine (SVM) is used to classify RISAT-1 data with optimized polarization combination into five land use land cover classes like urban land, agricultural land, fallow land, vegetation and water bodies. The overall classification accuracy achieved by SVM is 95.23 % with Kappa coefficient 0.9350.


2015 ◽  
Vol 22 (1) ◽  
pp. 83-100 ◽  
Author(s):  
Franciszek Woch ◽  
Robert Borek

Abstract The aim of the work described here has been to point to the relationships between the field-forest boundary and crop productivity as regards the present agrarian land-use structure in Poland, and to provide new opportunities for arranging the agrarian process and the spatial planning of the rural landscape in the context of the sustainable shaping of the field-forest boundary. Impacts of forests and woodlands on crop productivity have been assessed using available data from relevant Polish literature. An assessment of the plot-distribution pattern characterising farms in Poland was made on the basis of reference data from the Agency for the Restructuring and Modernisation of Agriculture. Finally, the possibility of afforestation of agricultural land has been evaluated within the existing legal framework, and on the basis of available data, with attention paid to the need to include organization of the field-forest boundary within the comprehensive management and planning of rural areas, and to preserve woody elements in patchy landscapes. This all creates an opportunity to test innovative approaches to integrated land use which combines the creation of public goods and local products based on participatory learning processes that bring in local stakeholders and decision-makers.


FLORESTA ◽  
2021 ◽  
Vol 51 (3) ◽  
pp. 648
Author(s):  
Lorena De Moura Melo ◽  
Mayara Maria De Lima Pessoa ◽  
Emanuel Araújo Silva ◽  
Lúcia De Fatima De Carvalho Chaves

Landscape change with the transposition of the São Francisco River, in the Domain Caatinga, Pernambuco.The objective of this study was to evaluate the dynamics of land use and cover and the landscape structure, as well as the landscape structure, of the Directly Affected Area by Integration Project of the São Francisco River with the Northeastern Hydrographic Basins, from the East Axis portion located in the State of Pernambuco, Brazil. For this purpose, TM / Landsat 5 and OLI / Landsat 8 images were used, referring to the years 1998, 2008 and 2018, periods before, during and after the transposition, respectively. The land use and land cover classes used in this analysis were savanna-steppe, savanna-steppe, anthropized and / or uncovered area, water resources and agricultural area. Image processing and classification were performed using the QGIS software. Also, studies related to the landscape structure were carried out, using different types of metrics, processed in the Patch Analyst tool, an extension of ArcGIS 10.5. As a result of the analysis of the 20 years, it was obtained that the savanna-steppe vegetation cover showed a 13.86% reduction. However, there were additions in the areas of ciliary savanna, water resources, agricultural area and anthropized area in 1.93%, 0.11%, 0.31% and 11.51%, respectively. Furthermore, there was an increase in forest fragmentation, which corroborated with the results regarding for the core area metrics, which show that there has been a reduction in the size of the fragments and a trend towards the loss of the core areas, due to the edge effect.


2019 ◽  
Vol 11 (3) ◽  
pp. 832 ◽  
Author(s):  
Maggie G. Munthali ◽  
Nerhene Davis ◽  
Abiodun M. Adeola ◽  
Joel O. Botai ◽  
Jonathan M. Kamwi ◽  
...  

Research on Land Use and Land Cover (LULC) dynamics, and an understanding of the drivers responsible for these changes, are very crucial for modelling future LULC changes and the formulation of sustainable and robust land-management strategies and policy decisions. This study adopted a mixed method consisting of remote sensing and Geographic Information System (GIS)-based analysis, focus-group discussions, key informant interviews, and semi-structured interviews covering 586 households to assess LULC dynamics and associated LULC change drivers across the Dedza district, a central region of Malawi. GIS-based analysis of remotely sensed data revealed that barren land and built-up areas extensively increased at the expense of agricultural and forest land between 1991 and 2015. Analysis of the household-survey results revealed that the perceptions of respondents tended to validate the observed patterns during the remotely sensed data-analysis phase of the research, with 57.3% (n = 586) of the respondents reporting a decline in agricultural land use, and 87.4% (n = 586) observing a decline in forest areas in the district. Furthermore, firewood collection, charcoal production, population growth, and poverty were identified as the key drivers of these observed LULC changes in the study area. Undoubtedly, education has emerged as a significant factor influencing respondents’ perceptions of these drivers of LULC changes. However, unsustainable LULC changes observed in this study have negative implications on rural livelihoods and natural-resource management. Owing to the critical role that LULC dynamics play to rural livelihoods and the ecosystem, this study recommends further research to establish the consequences of these changes. The present study and future research will support decision makers and planners in the design of tenable and coherent land-management strategies.


Sign in / Sign up

Export Citation Format

Share Document