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当前位置: 首页 > 文章 > 粮食主产区景观格局变化及生态环境响应——以湖北省鄂州市为例 湖北农业科学 2015,54 (11) 2787-2791
Position: Home > Articles > Landscape Pattern Change and Ecological Environment Response in Main Grain Producing Area——A Case Study on Ezhou City in Hubei Province Hubei Agricultural Sciences 2015,54 (11) 2787-2791

粮食主产区景观格局变化及生态环境响应——以湖北省鄂州市为例

作  者：
刘庆亚;张丽琴;程子瑞
单  位：
中国地质大学(武汉)公共管理学院
关键词：
景观类型;景观格局变化;生态风险;粮食主产区;鄂州市
摘  要：
以中部粮食主产区湖北省鄂州市1991、2012年土地利用调查变更数据为基础,根据土地利用方式对鄂州整体景观重分类,分为耕地、林地、建设用地、养殖水面、水体和其他用地6类。通过Fragstats软件计算景观格局指数,从斑块类型水平和景观类型水平分析鄂州景观数量和空间格局变化,以此建立生态危险评价模型来对生态环境进行响应。根据地统计分析中半变异函数拟合和克里金插值分析生态环境变化。1991-2012年,耕地和其他用地面积减少,破碎度增加;水体面积减少,破碎度减少;林地、建设用地和养殖水面面积增加,破碎度减少。鄂州城市整体各景观类型呈均衡趋势发展,景观多样性增加,景观格局趋于破碎化分布,但耕地大面积减少,导致植被覆盖降低,土壤侵蚀严重,生态环境恶化。
译  名：
Landscape Pattern Change and Ecological Environment Response in Main Grain Producing Area——A Case Study on Ezhou City in Hubei Province
作  者：
LIU Qing-ya;ZHANG Li-qin;CHENG Zi-rui;School of public administration, China University of Geosciences;
关键词：
landscape type;;landscape pattern change;;ecological risk;;main grain producing area;;Ezhou city
摘  要：
Based on the change data of land use survey in both 1999 and 2012 in Ezhou city, the main grain producing area in the central region, this paper reclassified the overall landscape of Ezhou according to the ways of land use, which was divided into cultivated land, forest land, construction land, aquaculture area, and the changes of the landscape quantity and the spatial pattern in Ezhou were analyzed by the level of patch types and landscape types, so as to establish the ecological risk assessment model for the response to the ecological environment. According to the semivariogram fitting and Kriging interpolation in land statistical analysis, the ecological environment changes were analyzed. From 1991 to 2012, the area of cultivated land and other lands decreased with the increase of fragmentation; the water area decreased with the decrease of fragmentation; the area of forest land, construction land and aquaculture area increased with the decrease of fragmentation.The whole landscape types in Ezhou city developed in a balanced trend, with the increase of landscape diversity and the fragmented distribution of landscapes, but the cultivated land area decreased, resulting in the decrease in vegetation coverage, severe soil erosion and deterioration of ecological environment.

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