基于综合指数法的太原市自然生态环境评价  

Natural Ecological Environment Evaluation in Taiyuan City Based on Comprehensive Index Method

作　　者：陈志云[1] 张泽沣 CHEN Zhi-yun;ZHANG Ze-feng(School of Geographical Science and Tourism, Jiaying University, Meizhou 514015, China;School of Journalism and Communication, Zhejiang University of Media and Communication, Hangzhou 310018, China)

机构地区：[1]嘉应学院地理科学与旅游学院,广东梅州514015 [2]浙江传媒学院新闻与传播学院,浙江杭州310018

出　　处：《嘉应学院学报》2018年第2期62-67,共6页Journal of Jiaying University

基　　金：广东省高等学校优秀青年教师培养计划(20140102);2017年度嘉应学院科研项目

摘　　要：通过自然生态环境评价,可以认知区域自然生态环境的优劣,并对区域可持续发展和合理开发提供一定的参考价值.利用太原市2016年遥感影像和DEM数据等,选取植被(植被覆盖度)、土壤(土壤指数)、地形(坡度指数)等3个指标进行计算,然后利用综合指数法对归一化后的环境因子进行加权叠加处理,计算出太原市自然生态环境等级并进行评价.结果显示,太原市自然生态环境的良及以上等级区域面积占全市的近七成,整体表现良好.但这并不等于该区生态环境水平高,因该区属于水土流失严重地区,所以只有增加城市绿地,合理开发和利用土地,持续修复生态退化区,不断涵养水土,才能实现区域可持续发展.This paper adopted the remote sensing images and DEM topographic map data of Taiyuan in 2016, obtained the vegetation coverage index （NDVI index）, soit （bare soil vegetation index） and slope of 3 environmental factors of the spatial distribution of the results, and then used the composite index method computes the weighted sum of the normalized processing of environmental factors, eventually came to and evaluate the level of natural ecological environment of Taiyuan city. The results showed that the overall performance of the natural ecological environment of Taiyuan City is good. The rating of ＂poor＂ area accounted for 13.246%, ＂medium＂ 18.965%, and ＂great＂ and ＂perfect＂ accounted for 67.79% of the total area. But this does not mean that the high level of ecological environment in Taiyuan City. On the contrary, as a serious soil erosion area is located in the city of Taiyuan City, only to increase the city green, Rational use and development land, continuing to repair ecological restoration area and conserve soil and water, will Taiyuan be able to achieve healthy development.

关 键 词：自然生态环境 评价 综合指数法 太原市 

分 类 号：X826[环境科学与工程—环境工程]