http://orcid.org/0000-0002-8904-9673
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Abstract
Landscape stability refers to spatial and functional stability of land use categories over time. This article is focused on the identification and comparison of stable areas in landscape using the overlay method and fuzzy model applying geographic information systems. The study area includes Handlová town and Cigeľ municipality in Slovakia. Both methods were based on land use data from 1955, 1987, 2003, and 2016. After determining stable areas, it was found that the difference between the overlay method and fuzzy model was 29.62 percent. Both methods resulted in an almost identical size of stable built-up area. The stable forest area computed by the fuzzy model was larger than the one calculated by the overlay method. Using the fuzzy model, arable land and grassland categories were mainly found to be unstable. As for the overlay method, the share of stable areas in case of arable land and grassland categories was 5.89 percent of the total stable area. Key Words: fuzzy model, GIS, landscape stability, land use, overlay method, Slovakia.
地景稳定度指涉土地使用范畴随着时间的空间与功能稳定性。本文运用使用地理信息系统的叠加法与模糊模型，聚焦指认并比较地景的稳定地区。研究地区包括斯洛伐克的汉德洛瓦和齐盖利行政区。两种方法皆根据1955年、1987年、2003年与2016年的土地使用数据。确认稳定地区之后，本研究发现叠加法和模糊模型之间的差异达百分之二十九点六二。两种方法皆导致几乎相同大小的稳定建成地区。由模糊模型所估算的稳定森林地区，则较叠加法所计算的更大。运用模糊模型，发现可耕地和草原的类型大部分是不稳定的。至于叠加法，在可耕地与草原类型中的稳定地区比例，是总体稳定地区的百分之五点八九。关键词：模糊模型，GIS，地景稳定度，土地使用，叠加法，斯洛伐克。
La estabilidad del paisaje se refiere a la estabilidad espacial y funcional de las categorías de uso del suelo a lo largo del tiempo. Este artículo se enfoca en la identificación y comparación de áreas estables del paisaje usando el método de superposición y el modelado difuso con aplicación de los sistemas de información geográfica. El área de estudio incluye el pueblo de Handlová y la municipalidad de Cigel’ de Eslovaquia. Ambos procedimientos se basaron en datos sobre el uso del suelo de 1955, 1987, 2003 y 2016. Después de determinar las áreas estables, se encontró que la diferencia entre el método de superposición y el modelo difuso era del 29.62 porciento. Ambos métodos resultaron en un tamaño casi idéntico del área construida estable. El área de bosque estable computada a través del modelo difuso resultó más grande que la calculada por medio del método de superposición. Con el uso del modelo difuso se encontró principalmente que la tierra arable y las categorías de praderas eran inestables. En cuanto al método de superposición, la parte de áreas estables en el caso de la tierra arable y las categorías de praderas resultó ser el 5.89 porciento del área estable total.
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JANA VOJTEKOVÁ is a lecturer and researcher in the Department of Geography and Regional Development, Faculty of Natural Sciences at the Constantine the Philosopher University in Nitra, 949 74 Nitra, Slovakia. E-mail: [email protected]. Her research interests include analysis and assessment of landscape structure and its changes as well as landslide hazard assessment with the support of geospatial technologies.
MATEJ VOJTEK is a lecturer and researcher in the Department of Geography and Regional Development, Faculty of Natural Sciences at the Constantine the Philosopher University in Nitra, 949 74 Nitra, Slovakia. E-mail: [email protected]. His research focuses on the issues of flood hazard and flood risk assessment at different spatial-scales (local, regional, national), surface runoff assessment, as well as landscape changes with the support of geoinformation technologies.