[1]YU Hualong,CHEN Qingfeng,TIAN Chao,et al.Eco-Spatial Characteristics and Risk Evaluation of Land Use Based on Landscape Structure—Taking Huailai County as An Example[J].Research of Soil and Water Conservation,2016,23(03):155-163.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
23
Number of periods:
2016 03
Page number:
155-163
Column:
Public date:
2016-06-28
- Title:
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Eco-Spatial Characteristics and Risk Evaluation of Land Use Based on Landscape Structure—Taking Huailai County as An Example
- Author(s):
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YU Hualong1, CHEN Qingfeng2, TIAN Chao1, ZHANG Jie2, CHEN Yaheng1,2
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1. College of Land and Resources, Agricultural University of Hebei, Baoding, Hebei 071001, China;
2. College of Resources and Environment Science, Agricultural University of Hebei, Baoding, Hebei 071001, China
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- Keywords:
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land use; landscape structure; spatial characteristics; ecological risk; Huailai County
- CLC:
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F301.24
- DOI:
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- Abstract:
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We built an ecological risk index from the view of the landscape based on landscape damage index and landscape fragile index utilizing the remote sensing images of Huailai County in 1995, 2003 and 2010. With the Geoda, GS+ and ArcGIS, we combined the statistical methods and spatial statistical methods (spatial autocorrelation) to explore the spatial distribution and the characteristic of variation of ecological risk of the landscape in Huailai County. The results showed that the area of each kind of land type varied obviously, while the natural landscapes such as cultivated land, water area and unutilized land declined quickly, on the contrary, the building area and park area increased with a concentrated trend, also the landscape fragile index and the landscape isolation index showed the lower value. On the whole, the ecological risk of Huailai County presented a layer structure with a higher risk in the center, especially in Shacheng Town, Tumu Town and Sunzhuangzi Town, the risks were the highest. The land area with a higher ecological risk was 96 698.25 hm2 in the period from 1995 to 2003, while the area decreased significantly during the period from 2003 to 2010 with the upward tendency of the area of high risk region and higher risk region on the whole level. The results could provide decision basis for guaranteeing the ecological safety of land use at county level and making the reasonable management strategy of ecological risk.