赞皇县土地利用景观格局动态变化分析

Analysis of Dynamic Changes of Land Use and Landscape Pattern in Zanhuang County

利用景观特征指数比较法,在遥感和GIS技术的支持下,通过处理1987年TM与2000年ETM 2期影像,对比分析赞皇县13年来土地利用的多样性指数、优势度、破碎化指数、分维数等景观指标的变化情况,并从自然因素和人为因素两方面对赞皇县景观格局的动态变化进行驱动力分析。结果表明:赞皇县整体景观以耕地为基质,林地、草地等景观类型作为斑块镶嵌其中;景观多样性相对上升,优势度、破碎化程度和分维数都有所下降。

Using the landscape index method, supported by remote sensing and GIS technology, some landscape indices were calculated and analyzed to present the dynamic change of Zanhuang landscape pattern from 1987 to 2000 through dealing with the images of TM in 1987 and ETM in 2000. The results showed that cultivated land had been dominating landscape pattern inlaid by some small pieces of forest land, grass land, water area, building land and unused land. The landscape diversity index went up relatively while dominance, fraetal dimension and fractal dimension dropped continuously. The main driving factors of the change of landscape pattern were analyzed by integrated analysis method.