机构地区: 广州大学地理科学学院
出 处: 《中国生态农业学报》 2005年第1期49-52,共4页
摘 要: 对伊洛河流域典型地段植被景观格局变化定量分析研究结果表明 ,该区域森林覆盖面积有所增加 ,但景观破碎化程度严重 ,斑块数目猛增 ,斑块平均面积减小且各类型斑块形状日趋简单 ;但斑块空间分布趋于均匀 ,斑块分布状况也逐步集中化。 The changes on vegetation landscape pattern in the typical region of Y iluo River Valley show that the forest-covered area in the t ypical region has in creased,but the landscape fragmentation turns serious,the patch numbers increase fiercely,the average area of patches decreases and the shape of various patches becomes simple increasingly,the regional distribution of patch trends to unifor mity,and the distribution of patch trends to concentration.