摘要
针对中国西南地区喀斯特地貌区域具有地质条件复杂、生态环境脆弱等特点,提出以植被覆盖指标、溶岩水体富水性指标、石漠化指标、地形坡度指标、土地利用类型指标作为喀斯特地区路域生态本底评价指标,并基于RS-GIS技术,以河池至都安高速公路为研究对象,研究了路域生态本底评价指标信息提取方法及指标分级方法,确定了生态本底评价指标权重系数,为公路生态保护方案的设计提供了依据。
For the karst area in southwest China, the geological condition is complex, and the ecosystem is fragile. Some indicators were proposed for background evaluation of the road-region ecosystem in karst area, including vegetation cover indicator, water abundance indicator of dissolution rock, rocky desertification indicator, terrain slope indicator and land use type indicator. Combined with the Hechi- Du＇an expressway, methods for information extraction and indicators classification were studied based on the RS-GIS technology. The relationship between the indicators for back ground evaluation and highway construction was analyzed, based on which the weight factor was determined, which provides basis for the design of highway ecological protection programs.
出处
《筑路机械与施工机械化》
北大核心
2016年第9期124-128,共5页
Road Machinery & Construction Mechanization
关键词
公路
喀斯特地区
路域生态
评价指标
highway
karst area
road-region ecosystem
evaluation indicator
