| 喀斯特生态环境敏感性评价——以都匀市为例 |
| |
| 引用本文： | 李荣彪,洪汉烈,殷 科,李阳兵,杨广斌,安裕伦.喀斯特生态环境敏感性评价——以都匀市为例[J].中国岩溶,2009,28(3):300-307. |
| |
| 作者姓名： | 李荣彪 洪汉烈 殷 科 李阳兵 杨广斌 安裕伦 |
| |
| 作者单位： | 1.凯里学院旅游与经济发展学院 |
| |
| 基金项目： | 国家自然科学基金项目 |
| |
| 摘 要： | 以都匀市为例，选取地层岩性、地形坡度、植被覆盖、土地利用类型、人口密度和农民年人均纯收入等6个评价指标，利用3S技术对各评价因子进行量化提取，建立空间分析模型，并对各评价指标进行空间叠合分析，划分出研究区域生态环境敏感性等级，再根据其区域空间分布特征，分别作出相应的分级评价分析。结果表明，强度生态敏感面积为75.23 km2，占全市总面积的3.30％；中度敏感面积为228.32 km2，占全市面积的10.02％；轻度敏感面积为902.11 km2，占全市面积的39.60％；微度敏感面积为841.00 km2，占全市面积的36.92％；非敏感面积为231.35 km2，占全市面积的10.16％。同时，研究发现，喀斯特生态环境敏感性是人为活动长期对喀斯特山区频繁干扰的结果。
|
| 关 键 词： | 3S技术 喀斯特生态环境 敏感性评价 空间分析 都匀市 |
| 收稿时间： | 2008/7/19 0:00:00 |
Evaluation on karst eco-environment sensitivity-A case study in Duyun city |
| |
| LI Rong-biao,HONG Han-lie,YIN Ke,LI Yang-bing,YANG Guangbin and AN Yu-lun.Evaluation on karst eco-environment sensitivity-A case study in Duyun city[J].Carsologica Sinica,2009,28(3):300-307. |
| |
| Authors: | LI Rong-biao HONG Han-lie YIN Ke LI Yang-bing YANG Guangbin and AN Yu-lun |
| |
| Institution: | 1.(1. Institute of Tourism and Economic Development, Kaili University2.Faculty of Earth Sciences, China University of Geosciences3.College of Geography and Biology Science, Guizhou Normal University |
| |
| Abstract: | Evaluation index system of eco-environment sensitivity was established in this paper, which is founded with six kinds of indexes,induding stratum lithology, topographical slope, vegetation cover, land use and population density as well as average annual net income of farmers. Based on the 3S technology,the paper extracted evaluation indexes,built spatial analysis modle for patial overlap analysis of evaluation indexes, and graded eco-environment sensitivity and its spatial distribution in karst area. Grade evaluation analysis was finally established according to the characteristics of spatial distribution. The results show that strong, moderate, light, minor and non-eco-environment sensitivity area cover an area of 75.23 kme, 228.32 km^2,902.11 km^2, 841.00 km^2and 231.35 km^2, respectively, which account for 3.30%, 10.02%, 39.60%, 36.92%, and 10. 16% of the total area of the whole city, accordingly. At the same time,the research indicates that the problem of fragile eco-environment sensitivity in karst area is a result that the fragile eco-environment is disturbed perennial by human activities. |
| |
| Keywords: | 3S technology evaluation on karst eco-environment sensitivity spatial analysis Duyun city |
| 本文献已被 维普 万方数据 等数据库收录！ |
| 点击此处可从《中国岩溶》浏览原始摘要信息 |
| 点击此处可从《中国岩溶》下载免费的PDF全文 |
|
