摘要
研究区域生态系统的变化特征与规律对区域经济的持续发展具有重要意义,成为当前生态环境问题研究的热点.以成都市为例,利用1990年、2000年和2010年三期生态系统数据集,在Arc GIS技术支持下,利用动态度、转移矩阵、状态指数等方法,对成都市生态系统的变化进行定量分析,探究了成都市生态系统的时空变化特征.结果表明:(1)近20年来,随着成都市经济社会的快速发展、城镇化进程的加快,成都市各生态系统都发生了巨大的变化,尤以农田与聚落生态系统的变化最为显著.(2)各生态系统之间的相互转化比较复杂,变化最剧烈的是聚落生态系统,转出量最大的是农田生态系统.(3)从生态系统转换的趋势看,农田生态系统处于减少状态且减少的趋势在增强,聚落生态系统处于增加状态且增加的趋势在增强.成都市经济社会的快速发展是引起生态系统变化的主要原因.
The change of ecosystem is the most important aspect of the study on the ecosystem environment variations,and the study of the feature and rules of ecosystem changes has important directive significances to regional sustainable development. Taking Chengdu as an example,this article took advantage of the statistics of ecosystem in 1990,2000 and 2010. With the support of Arc GIS and the methods including the dynamics degree,the transferring matrix,and condition indexes,the article made a quantitative research on the changes of ecosystem in Chengdu,and analyzed the spatial-temporal features and process of land use change. The results revealed that：（ 1） along with the rapid development of economy and urbanization in Chengdu,its each main ecosystem has changed a lot since the last 20 years,especially the changes in farmland and settlement ecosystem.（ 2） Mutual transfer process between the various types of ecosystem is more complex. The settlement ecosystem exhibits highest dynamics,while the farmland ecosystem with the biggest transferring area.（ 3） According to the transferring trend of ecosystem,grassland ecosystem tends to decrease and this trend is being strengthened. However,the settlement ecosystem is quite the contrary. The most important cause to ecosystem change is the rapid development of economic and social.
出处
《绵阳师范学院学报》
2016年第8期105-110,共6页
Journal of Mianyang Teachers＇ College
关键词
生态系统
时空演变
成都市
ecosystem
temporal and spatial changes
Chengdu City
