中文摘要：

摘要利用2015年高分辨率卫星遥感影像提取了京津冀地区非正规垃圾堆放场地的分布，获取了垃圾场地位置、面积以及与居民点和河流等环境敏感区的距离等信息，对其空间分布特征、影响因素、环境风险等进行了分析。结果表明：京津冀地区共监测到非正规垃圾场地近万个，数量多、密度大，呈现出西北山区少、东南平原区多的空间分布趋势；在地级及以上城市单元上，垃圾场地数量和密度居前列的是石家庄市、保定市和沧州市；北京市由于拆迁建筑垃圾较多，垃圾场占地面积最大；垃圾场数量密度、面积密度与平均高程具有显著负相关关系（r=-0．4564，P=0．0098；r=-0．3290，P=0．0087）；80％的垃圾场地位于居民点100m范围内，21％位于河流200m范围内，对周边生态环境和人体健康可能造成较大风险；地形地貌、区域人口密度，尤其是农村人口和垃圾处理机制，是影响垃圾堆放量的重要因素。

英文摘要：

By using the high resolution remote sensi distribution of the non-regular garbage sites in ng images of 2015 in the region of Beijing, Tianjin and Hebei, the the region was extracted, and the qualitative and quantitative characteristics of the non-regular garbage sites were generated including their location, area, type and distance from residential areas or environmentally sensitive objects such as rivers. The sites＇ spatial distribution features, environmental risk, and impact factors were analyzed. Nearly ten thousands of garbage dumps with the characteristics of large quantity and density were found in the region. Specially, there were more dumps in the southeast plain area and less in the northwest mountainous area. The cities with the largest number and maximum density of garbage were Shijiazhuang, Baoding and Cangzhou. Beijing had the largest dump area because of large number of demolition construction wastes. There exist significant negative correlation between the number density and the average elevation （r = - 0. 4564, P = 0. 0098）, as well as between the area density and the average elevation （r = -0. 3290, P = 0. 0087）. The garbage may lead to high environmental risk on the surrounding areas, because 80% of dumps were located within 100 meters of residential areas and 21% were located within 200 meters of rivers. Topography and regional population density, especially the rural population and garbage disposal mechanism were suggested to be factors affecting the amount of garbage.