摘要
利用高分辨率的IKONOS卫星数据,以RS和GIS为技术手段研究了川中丘陵区的景观格局特征及其影响因素。结果表明,随着地势起伏的加剧和人类活动强度减弱,浅丘、中丘和高丘景观格局的多样性指数分别是1.1437、1.3598和1.4367;优势度依次为0.8022、0.5861和0.5092;分维数依次是1.2652、1.3019和1.3272;破碎度则分别为53.9488、60.1556和54.4666。其景观格局主要受气候、地貌、坡度、人类活动和居民点分布的控制和影响。
Based on the high resolution IKONOS data, remote sensing （RS） and geographic information system （GIS） were used to study the characteristics and its influential factors of landscape pattern in the hilly region of the central Sichuan basin. The results indicate that, with the relief increment and the reduction of human activities, the diversity index in the low hill, middle hill and high hill is 1.1437, 1.3598 and 1.4367, respectively; the dominance is 0.8022, 0.5861 and 0.5092, respectively; the fractal dimension is 1.2652, 1.3019 and 1.3272, respectively; the degree of fragmentation is 23.9488, 30.1556 and 24.4666, respectively. Therefore, landscape pattern in the hilly region of the central Sichuan basin is mainly controlled and influenced by climate, relief, gradient, human activities and the distribution of residential areas.
出处
《四川农业大学学报》
CSCD
2006年第2期182-186,共5页
Journal of Sichuan Agricultural University
基金
四川省教育厅人才培养基金(01LA02)
四川省青年科技基金(04ZQ026-018)
关键词
RS
GIS
景观格局
川中丘陵区
RS
GIS
landscape pattern
the hilly region of the central Sichuan basin
