快速城镇化地区生态用地演变及驱动力分析

发布时间：2018-07-12 12:20

本文选题：生态用地 + 景观指数　；参考：《长江流域资源与环境》2015年06期

【摘要】：基于高分辨率遥感影像、GIS和RS技术,利用转移矩阵、景观指数和地图叠加等方法系统分析了辛庄镇域生态用地演变的时空特征,并引入二项Logistic回归模型,选择到农村居民点的距离、到道路的距离、到河流水系的距离、到村镇中心的距离、人均GDP、人均工业总产值、人均农业总产值、人均收入、人口密度为驱动因子,对研究区主要类型生态用地变化的驱动力进行分析。结果表明:1991~2009年,辛庄镇生态用地空间结构和面积变化剧烈,总体上呈加速缩减趋势。其中,水田面积变化尤为明显,18a间累积减少1 806.61hm2;经济效益较高的水产养殖用地和园地规模有所增长,尤其是水产养殖用地,1991~2009年年均增长43.01hm2,长幅为93.26%。生态用地主要转移去向为水产养殖用地、居住用地和工业用地。生态用地总体上破碎化程度加剧,类型水平上,大体上呈现为破碎度加剧、景观形状日趋规则、优势度逐渐降低、聚集度日益增加的态势。各时段生态用地演变的主要驱动因子均为邻域因子,但随着时间的推移,社会经济因子对生态用地变化的解释效力逐渐增强。
[Abstract]:Based on GIS and RS technology of high resolution remote sensing image, the spatial and temporal characteristics of ecological land evolution in Xinzhuang town were analyzed systematically by using transfer matrix, landscape index and map superposition, and a binomial logistic regression model was introduced. The driving factors are the distance to the rural settlements, the distance to the road, the distance to the river system, the distance to the center of the village and town, the per capita GDP, the per capita industrial output value, the per capita agricultural output value, the per capita income and the population density. The driving force of the main types of ecological land use change in the study area was analyzed. The results showed that the spatial structure and area of ecological land in Xinzhuang Town changed sharply from 1991 to 2009, and generally showed a trend of accelerated decrease. Among them, the change of paddy field area was especially obvious during 18a, the cumulative decrease was 1 806.61hm2, and the scale of aquaculture land and garden land with higher economic benefit increased, especially the average annual increase of 43.01hm2between 1991 and 2009, which was 93.26hm2. Ecological land is mainly transferred to aquaculture land, residential land and industrial land. On the whole, the degree of fragmentation of ecological land was increased, and the level of type showed that the degree of fragmentation, the shape of landscape, the degree of dominance and the degree of aggregation increased. The main driving factors of ecological land use evolution in each period are neighborhood factors, but with the passage of time, the interpretation effect of social economic factors on ecological land use changes is gradually enhanced.
【作者单位】：复旦大学环境科学与工程系;复旦大学城市规划与发展研究中心;中国科学院沈阳应用生态研究所;
【基金】：国家科技支撑计划项目(2006BAJ10B05) 国家自然科学基金资助项目(51378127,41271201)
【分类号】：F299.21;P208;P228.4;P237

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