石油开发对辽河油田湿地景观格局变化的影响分析

通过对1989-2009年20年间景观格局的空间分布、变化特征以及变化趋势分析,揭示了造成双台子河自然保护区环境变化的主要驱动力是人类活动和社会经济发展的影响,定量计算了石油开发对研究区域景观格局变化的影响。结果显示:1989-2009年双台河口自然保护区的土地利用类型发生了很大的变化,景观破碎度明显增加,人类活动导致保护区内的土地利用和景观格局也发生了明显变化,但油田开发在总的土地利用变化中的贡献率仅为4.6%。

Analysis of Impact of Oil Development on Liaohe Oilfield Wetland Landscape Pattern Change

Through the analyses of the spatial distribution,variation characteristics and variation tendency of the landscape pattern during the past 20 years from 1989 to 2009,this paper reveals that the main driving force causing environmental change of the nature reserve of Shuangtaizi River is the impact of human activities and socio-economic development and it quantitatively calculates the impact of oil development on the landscape pattern change in the study area.The results show that the land use type of Shuangtaihekou nature reserve has undergone a drastic change from 1989 to 2009,the fragmentation degree of landscape has increased significantly,and land use and landscape pattern of the protected areas has also undergone a significant change caused by human activities.However,the contribution rate of the oilfield development in overall land-use change is only 4.6%.