全文总字数：7271字

1. 研究目的与意义及国内外研究现状

随着科学技术的不断进步, 遥感技术也在日新月异地发展, 卫星影像的分辨率越来越高, 可以根据不同的要求选择所需要的卫星图片。从城市园林绿地具有分散和集中的特点来考虑, 为尽可能详细地查清城市园林绿地信息 , 园林工作者们都倾向于使用高辨率的卫星图片。目前, quickbird 、ikonos 、spot 将是高分辨率卫星影像的主要选择。其中quickbird卫星影像是迄今为止分辨率最高的卫星影像, 利用quickbird卫星影像能准确地反映出城市绿地现状, 最适合城市绿地资源调查。为了查清云龙湖周边绿化现状 , 为建设徐洲园林绿地系统和创建园林城市实施方案提供依据, 徐洲市园林绿化局首次运用quickbird 卫星影像进行园林绿地现状调查, 并取得了良好的成效。

随着对地观测技术的进步，遥感影像的空间分辨率和光谱分辨率越来越高，能够监测到的地面目标也越来越详细和丰富。目前，quickbird商业卫星可提供0.61m分辨率色影像和2.44m分辨率多光谱影像，该影像能够详尽地反映出研究区域绿地现状，在不同尺度的绿地调查中得到了广泛的应用。以quickbird遥感影像为信息源，提取并调查了徐州云龙湖周边草地内各功能区的植被现状，分析了绿地配置、植物物种组成及植物群落结构特征，以期为云龙湖等城市绿地的规划调查、评价与改造提供一些参考。

国内外研究现状

传统的土地利用调查周期长、费用高、效率低，不利于对城市建设的跟踪监测，很难对城市的发展进行科学有效管理。遥感技术作为一门先进的综合性科学技术，它能迅速有效地为城市土地利用动态监测提供多时相、大范围的实时信息，为城市绿地动态监测提供了科学而有效的方法。王斐等针对不同分辨率多源遥感影像利用 同方法对城市绿地信息进行提取; 黄浩、吕杰、乔玉良、刘向增、黄莉采用基于相元分类方法对城市绿地信息进行提取; 刘充、王志岗、申广荣等利用面向对象分类提取城市绿地信息。

2. 研究的基本内容

全文共分为六章，每章的主要内容为：

第一章介绍了研究背景，从城市园林绿地具有分散和集中的特点来考虑 , 为尽可能详细地查清城市园林绿地信息 , 园林工作者们都倾向于使用高分辨率的卫星图片。目前, quickbird 、ikonos 、spot 将是高分辨率卫星影像的主要选择。其中quickbird 卫星影像是迄今为止分辨率最高的卫星影像, 利用quickbird卫星影像能准确地反映出城市绿地现状, 最适合城市绿地资源调查。

第二章介绍了本文的研究数据情况，2001年10月18日, 由digitalglobe 所有的quickbird高分辨率遥感 卫星在加利福 尼亚范登堡空军基地发射升空。卫星进入98太阳同步轨道,重访周期1～6d, 观测角度沿轨/横轨方向( /-25 度), 它可提供61cm 辨率全色影像和2.44m分辨率多光谱影像 。

3. 实施方案、进度安排及预期效果

实施方案：在阅读相关指定参考文献的基础上，运用所学遥感知识，对quickbird卫星影像进行预处理，通过软件提取归一化植被指数，从而计算草地面积，科学合理进行城市规划，优化城市绿地结构，改善城市绿地分布零星破碎的现状。走绿色可持续经济发展道路，缓解经济增长带来的城市扩张压力，减少建设用地对城市绿地的侵占。

进度安排：2018年11月15日前，完成选题；

2018年11月15日前，了解课题，填写毕业论文任务书；

4. 参考文献

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