Analysis of Land Use Change and Landscape Ecological Risk in Taihang Mountain, Hebei Province
Abstract: Land use change and landscape ecological risk analysis serve as the basis for realizing regional land ecological security and sustainable development. In this paper, Taihang Mountain in Hebei Province was chosen as the study area. GIS spatial analysis was employed to make the layer algebra operation of the interpretation data of the TM remote sensing images in 1990, 2000 and 2008, quantitatively study the change of land use and the transformation of land use type in this region. Additionally, the ecological security assessment model comprising a landscape disturbance index and a land use sensitivity was established by the respect of land use change and landscape structure to quantitatively analyze spatial-temporal variation character of landscape ecological risk. Results showed that the change of land use and the transformation of land use type showed comparatively complex among the 18 years. What’s more, the main types of transformations of land use are focused among farm land, woodland and grassland. Besides, obvious spatial- temporal difference was found in the distribution of ecological risk associated with the intensity and pattern of land use change. As a whole, the landscape ecological risk showed a downward trend in the past 18 years, with the main principle that distribution increased successively from the western high mountains to the eastern plains, in the obvious zonal structure. Low and lower risk areas distributed mainly in the western mountainous areas; Medium risk areas was mainly in the mountain-plain-transition-belt; The higher and highest risk areas distributed in the rural-urban ecotone, land around lakes and reservoirs; The Huangbizhuang reservoir and the east-central part of Shahe City were highest. To promote sustainable development of the ecological environment and the social economy, ecological protection and construction should be strengthened in the areas with intermediate ecological risk in the Taihang Mountains in Hebei Province.
文章引用: 许 宁 , 张广录 , 高志强 , 王秋贤 (2013) 河北太行山区土地利用变化及其景观生态风险分析。 地球科学前沿， 3， 353-360. doi: 10.12677/AG.2013.36047
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