摘要
在RS和GIS技术的支持下,利用两期遥感影像分析了研究区的土地利用变化,以此为基础,采用生态环境效应评价指数对研究区的生态环境质量进行评估。研究表明,龙泉驿区的土地利用变化呈现"一增四减"的特点,建设用地增长明显,土地利用程度明显提高,土地资源利用速度不断加快,土地利用综合水平稳步提升。在土地利用转移中既有良性转换,也有恶性转换,由于城市建设需求的迅猛增加,导致耕地和林地的面积不断下降。龙泉驿区的生态环境质量指数不断减小,能否保持耕地动态平衡是提高区域生态环境质量的关键。
With the support of RS and GIS technology, the paper use two issue of remote sensing image analyzed the change of land use in the study area, the ecological environment effect evaluation index was used to evaluate the quality of ecological environment in the study area on this basis. The research shows that： the land use change of Longquanyi district presents the characteristics of ＂one increase and four subtractions＂, and the construction land is growing obviously; the land use level is obviously improved, the land resource utilization rate is accelerating, and the comprehensive level of land use is steadily improved. There are both benign and malignant transformations in land use transfer, in short, the area of arable land and woodland is decreasing due to the rapid increase of urban construction demand. The ecological environment quality index of Longquanyi district is decreasing continuously, whether to maintain the dynamic balance of cultivated land is the key to improve the quality of regional ecological environment.
出处
《环境保护与循环经济》
2018年第8期41-44,80,共5页
environmental protection and circular economy
