摘要
以宜昌城市边缘区2000年、2005年、2010年和2015年遥感数据为基础,参考Costanza和谢高地的生态系统服务价值测算方法,对宜昌城市边缘区生态服务价值变化进行分析;并结合2015年宜昌市边缘区遥感数据,运用FRAGSTAS景观格局分析方法对其内土地景观格局指标进行分析.结果表明:在土地生态效益上,区域内4个时期所能提供的生态服务价值总量均大幅下降,呈恶性发展趋势;在土地利用格局上,区域内土地斑块分散且破碎,斑块面积小.说明交通及工矿用地对林地、草地等生态用地的侵占,导致了边缘区整体景观格局失衡.改善土地利用结构、优化景观格局,是提高宜昌城市边缘区生态价值和人居环境质量的重要保证.
The study aims at researching the change of ecosystem services value in Yichang city as the sample of the urban fringe area.With the method of ecosystem services value calculation of Costanza and Gaodi Xie by using the GIS technology,based on the remote sensing images in 2000,2005,2010,2015.And Combined with the remote sensing images in 2015,the area change of landscape patterns is calculated and analyzed by the software FRAGSTAS.The results show that the amount of ecosystem service value has sharply fallen in land-using eco-efficiency.In land-using patterns,land patches are fragmented and broken;Plaque areas are small;which means the ecological land is seized by traffic and industrial land,so as to lead the landscape patterns of urban fringe area imbalanced.So improving the land-using structure and optimizing the landscape pattern are important guarantees for improving ecological value and quality of human settlement.
出处
《三峡大学学报（自然科学版）》
CAS
2016年第3期48-52,63,共6页
Journal of China Three Gorges University：Natural Sciences
基金
教育部人文社科研究规划基金"城市化背景下山地城镇生态安全格局与景观特色研究"(12YJA760029)
