高速公路沿线土地利用及生态系统服务价值变化研究

发布时间：2018-01-26 17:17

本文关键词： 高速公路土地利用生态系统服务价值变化京承高速　出处：《中国农业大学学报》2016年02期 　论文类型：期刊论文

【摘要】：为分析高速公路沿线土地利用及生态系统服务价值的变化规律,确定高速公路对沿线土地的影响范围,以京承高速北京段沿线10km范围的1995、2004、2009年3期TM遥感影像提取的土地利用数据为基础,基于GIS分析各种土地利用类型面积变化的特点、规律和原因,并分析了与高速公路不同距离范围内土地利用程度与生态服务价值的变化规律。结果表明:1)从1995—2009年,京承高速沿线土地用地结构发生了较大的变化,各种用地类型之间的转换较为频繁,说明高速公路的修建对于沿线土地利用类型的影响剧烈,尤其沿线农业结构调整变化明显;2)高速公路沿线土地利用程度与高速公路的距离有较大关系,土地利用程度变化最剧烈的区域为3~8km,8km外,土地利用程度变化开始减小;3)1995—2009年,京承高速沿线生态服务价值先增加后减少,由于园地面积显著增加,京承高速沿线土地生态系统服务价值的总量变化相对平稳,距离高速公路1~3km的生态系统服务价值变化最剧烈,8km外,生态系统服务价值的变化逐渐平稳。
[Abstract]:In order to analyze the change rule of land use and ecosystem service value along the expressway and determine the influence range of expressway on the land along the highway, the paper takes 1995 as the 10km area along the Beijing-Cheng-highway Beijing section. On the basis of land use data extracted from three issues of TM remote sensing images in 2004 and 2009, the characteristics, rules and causes of land use type area change were analyzed based on GIS. The changes of land use degree and ecological service value in the range of different distance from expressway are analyzed. The result shows that the change of land use degree and ecological service value is from 1995 to 2009. Great changes have taken place in the structure of land use along the Jingcheng Expressway, and the conversion between various types of land use is more frequent, which indicates that the construction of the expressway has a strong impact on the land use type along the line. The adjustment of agricultural structure along the route is obvious. 2) the degree of land use along the highway is related to the distance of highway. The area where the degree of land use changes most intensely is outside 3km2 or 8km, and the change of land use degree begins to decrease; From 1995 to 2009, the value of ecological services along Jingcheng Expressway increased first and then decreased. Because of the significant increase of garden area, the total value of land ecosystem services along the Beijing-Cheng-Cheng-Expressway was relatively stable. The ecosystem service value of 1 ~ 3 km away from the expressway changed the most sharply, and the change of ecosystem service value was gradually stable.
【作者单位】：北京农业信息技术研究中心;国家农业信息化工程技术研究中心;农业部农业信息技术重点实验室;北京市农业物联网工程技术研究中心;
【基金】：国家自然科学基金资助项目(41301093,41201173)
【分类号】：F301.2
【正文快照】： 随着我国综合国力的不断提高和科技水平的进步,高速公路建设发展迅速。截至2012年底,我国高速公路总里程达9.6×104 km。高速公路为国民经济快速发展提供重要基础保障的同时,对生态环境造成了不可忽视的影响[1],公路在交通运营和维护的过程中会对自然环境和各种生态过程造成不

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