从江苏省沿江开发过程中的实际需求出发,将景观生态学的景观指数方法加以应用,形成一套土地利用生态评估的技术方法与路线.以江阴市为应用对象,运用计算机技术和目视解译的方法从卫星影像中分别提取1984年和2004年的土地遥感信息,并依据土地利用分类系统提取这2个年份的土地利用信息,应用景观生态学的指数计算方法计算相关评估指数并加以对比研究.在此基础上进行景观组分的动态变化和景观格局的演化态势2个部分的生态评估.分析结果表明:在这个时间段中,江阴市生态景观面积总量偏少,破碎度增加 城镇景观、工业景观斑块持续增长,采石场斑块大幅减少 景观多样性及优势度不断增强,人文景观组分对整体景观的控制作用处于主导地位.根据评估结论,提出水质保护、生态绿斑管制等生态整合的规划建议.
From the actual demand of the development process along the Yangtze River in Jiangsu Province,a landscape ecology index method of landscape ecology is applied to form a series of technical methods and routes of land-use ecological assessment.Jiangyin City is taken as an application object.Firstly,the land remote sensing information in 1984 and 2004 are extracted from satellite images by using computer technology and visual interpretation methods.Then,the land-use information in these two years is extracted according to the land-use classification system.The relevant assessment indexes are calculated by the index calculation method of landscape ecology.On the basis of the index calculation,the ecological assessment including the dynamic changes of the landscape composition and the evolution trend of the landscape pattern is carried out.The analysis results show that in this period,the total area of the ecological landscape in Jiangyin City is less and the fragmentation increases.The urban landscape and the industrial landscape patches grows continuously, while quarry patches significantly reduce.The landscape diversity and dominance grow too.The cultural landscape composition is in a dominant position on the overall control of the landscape.On the base of the assessment conclusions,some ecological integration planning proposals,such as water quality protection and ecological green spot control,are put forward.