通过摄影与数字图像处理相结合的方法分析了1999年北京山区典型植被覆盖度的季节动态变化规律。
How the typical vegetation coverage changed with time in the mountainous area of Beijing in 1999 is studied after processing the photos taken in field.
结果表明：我国植被覆盖的动态变化受气候波动的影响十分显著，并且这种变化的区域性差异明显。
As a result, the dynamic vegetation cover change was closely coupled with climatic fluctuation, and showed a remarkable regional difference.
用NOAA卫星数据对沙地植被覆盖度进行动态监测可以为认识该地区的荒漠化动态变化及过程提供丰富的信息。
Dynamic monitoring of vegetation coverage of sands using NOAA satellite data can usefully aid in the understanding of the dynamic processes of desertification in the Ordos region.
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