<正>城市绿地景观是城市自然生态系统的主要组成部分，其数量、结构与城市发展和生态环境质量有着极其重要的关系。通过对南京市1988年、2000年和2002年3个时段的：andsat/TM遥感影像加工处理，将绿地景观兮为生态绿化用地和农业用地，并通过景观指数的方法对其在15年问的景砚格局和动态进行分析。结果表日月，1988—2000年，南京市绿地景观总面积增加9.60%，斑块数减少，平均斑块面积增加、斑块形状趋向筒单。聚集程度增加。总体破碎程度下降。而不同绿地景观类型变化不同：农业用地面积增加12，80%。在蛾区外围大规模聚集分布，破碎程度较低：生态绿化用地面积减少3.60%，小面积斑块数量大幅减少。景观形状变得更加规则?主要生态绿化用地斑块形成“孤岛”分布，破碎度呈下降趋势，景观异质性和多样性下降。绿地生态质量下降。与2000年比较、2002年城市生态绿地面积减少0.63%，农业用地减少14.60%、生态绿地景观趋向于面积较大的斑块数量减少和景观破碎化程度增加。城市绿地景观格局变化的主要原因是南京市城市化进程的加快以及城市所处自然环境变化的影响。

The vertical patterns of diameter and volume of moso batnboo stem were studied in this paper. That bamboo stems were divided into 40 sections at equal length. That the girth, thickness and node of each section were measured. Seven regression models were established to describe the vertical structure of the diameter, volume of timber of moso bamboo stem.. Those models were applied to relative diameter, relative apparent volume, relative real volume and relative node volume of timber with relative height of stem, and apparent volume, real volume, node volume of timber with DBH of stem. Although differences appeared on DBH at different moso bamboo individuals, there was striking identicalness of relative diameter and relative volume at vertical direction. It was mainly due to commonness on the vertical structure of moso bamboo stem.